SEM / Select Medical Holdings Corporation - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2025 SELECT MEDICAL HO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2025 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SELECT MEDICAL HOLDINGS CORPORATION APPOINTS THOMAS P. MULLIN AS CHIEF EXECUTIVE OFFICER AND ANNOUNCES OTHER CHANGES INVOLVING LONG-TENURED LEADERS

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM SELECT MEDICAL HOLDINGS CORPORATION APPOINTS THOMAS P. MULLIN AS CHIEF EXECUTIVE OFFICER AND ANNOUNCES OTHER CHANGES INVOLVING LONG-TENURED LEADERS MECHANICSBURG, PENNSYLVANIA - September 2, 2025 - Select Medical Holdings Corporation (“Select Medical”) (NYSE: SEM) today announced the appointment of Tho

SELECT MEDICAL HOLDINGS CORPORATION AMENDED AND RESTATED BYLAWS TABLE OF CONTENTS

Exhibit 3.1 SELECT MEDICAL HOLDINGS CORPORATION AMENDED AND RESTATED BYLAWS TABLE OF CONTENTS Page ARTICLE I. STOCKHOLDERS 1 Section 1.1 Annual Meetings 1 Section 1.2 Special Meetings 1 Section 1.3 Notice of Meetings; Waiver 1 Section 1.4 Quorum 1 Section 1.5 Voting 2 Section 1.6 Voting by Ballot 2 Section 1.7 Adjournment 2 Section 1.8 Proxies 2 Section 1.9 Notice of Stockholder Business and Nomin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2025 SELECT MEDICAL HOLDIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2025 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2025 SELECT MEDICAL HOLDIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2025 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2025 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2025 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — July 31, 2025 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its second quarter ended

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT ME

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2025 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2025 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2025 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — May 1, 2025 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its first quarter ended Mar

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT M

Certificate of Amendment to Certificate of Incorporation of Select Medical Holdings Corporation (filed herewith)

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF THE CERTIFICATE OF INCORPORATION OF SELECT MEDICAL HOLDINGS CORPORATION Pursuant to the provisions of Section 242 of the General Corporation Law of the State of Delaware (the “DGCL”), Select Medical Holdings Corporation, a corporation organized and existing under the laws of the State of Delaware (the “Corporation”), hereby certifies as follows: 1. The name

Amendment No. 1 to Amended and Restated Bylaws of Select Medical Holdings Corporation (filed herewith)

Exhibit 3.2 SELECT MEDICAL HOLDINGS CORPORATION AMENDMENT NO. 1 TO AMENDED AND RESTATED BYLAWS The Amended and Restated Bylaws of Select Medical Holdings Corporation, a Delaware corporation (the “Corporation”), are hereby amended by deleting therefrom Section 2.11 and Section 9.1 of the Amended and Restated Bylaws in their entirety and inserting the following in lieu thereof: 1. Section 2.11 of th

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2025 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Non-Employee Director Compensation Policy of Select Medical Holdings Corporation (filed herewith)

Exhibit 10.1 SELECT MEDICAL HOLDINGS CORPORATION Non-Employee Director Compensation Policy Effective Date: April 24, 2025 The purpose of this Policy of Select Medical Holdings Corporation (“Select Medical” or the “Company”), is to provide a total compensation package that enables the Company to attract and retain, on a long-term basis, high-caliber directors, who are not employees or officers of t

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant      x Filed by a Party other than the Registrant ☐ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Co

Select Medical Holdings Corporation Insider Trading Policy

SELECT MEDICAL HOLDINGS CORPORATION SELECT MEDICAL CORPORATION AMENDED AND RESTATED STATEMENT OF TRADING POLICIES ADOPTED: August 12, 2009 LAST AMENDED: February 13, 2025 BUSINESS.

Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2024, Its 2025 Business Outlook, and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2024, Its 2025 Business Outlook, and Cash Dividend MECHANICSBURG, PENNSYLVANIA — February 20, 2025 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today an

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

Use these links to rapidly review the document TABLE OF CONTENTS INDEX TO FINANCIAL STATEMENTS Table of Contents 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Subsidiaries of Select Medical Holdings Corporation.

Exhibit 21.1 SUBSIDIARIES OF SELECT MEDICAL HOLDINGS CORPORATION As of December 31, 2024 NAME Jurisdiction of Organization Actra Rehabilitation Associates, Inc. Wisconsin Acuity General Partner, LLC Texas Acuity Healthcare Holdings, Inc. Delaware Acuity Healthcare Management, LLC Louisiana Acuity Healthcare of Ohio, L.L.C. Ohio Acuity Healthcare, LP Louisiana Acuity Holdings, LLC North Carolina Ac

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2025 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment No. 11, dated December 3, 2024, to the Credit Agreement, dated as of March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2, dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019, Amendment No. 4, dated as of December 10, 2019, Amendment No. 5, dated as of June 2, 2021, Amendment No. 6, dated as of February 21, 2023, Amendment No. 7, dated as of May 31, 2023, Amendment No. 8, dated as of July 31, 2023, Amendment No. 9, dated as of August 31, 2023 and Amendment No. 10, dated as of July 26, 2024 .

Exhibit 10.1 Execution Version AMENDMENT No. 11, dated as of December 3, 2024 (this “Amendment”), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as

Select Medical Holdings Corporation Closes Offering of $550 Million of 6.250% Senior Notes due 2032 by Select Medical Corporation

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Closes Offering of $550 Million of 6.250% Senior Notes due 2032 by Select Medical Corporation MECHANICSBURG, PENNSYLVANIA – December 3, 2024 – Select Medical Holdings Corporation (“Holdings”) (NYSE: SEM), today announced that Select Medical Corporation, a wholly-owne

Indenture, dated as of December 3, 2024, by and among Select Medical Corporation, the guarantors named therein and U.S. Bank Trust Company, National Association, as trustee.

Exhibit 4.1 Execution Version SELECT MEDICAL CORPORATION 6.250% SENIOR NOTES DUE 2032 INDENTURE Dated as of December 3, 2024 U.S. Bank Trust Company, National Association Trustee TABLE OF CONTENTS Page ARTICLE 1. DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.01 Definitions 1 SECTION 1.02 Other Definitions 30 SECTION 1.03 Financial calculations for Limited Condition Transaction 31 SECTION 1.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 3, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 25, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Unaudited Pro Forma Consolidated Financial Information

Exhibit 99.2 Select Medical Holdings Corporation Unaudited Pro Forma Consolidated Financial Information On January 3, 2024, Select Medical Holdings Corporation (“Select,” “we,” or “our”) (NYSE: SEM) announced our intention to separate Concentra Group Holdings Parent, Inc. (“Concentra”) from our business. On July 11, 2024, Concentra Escrow Issuer Corporation (the “Escrow Issuer”) completed a privat

Select Medical Holdings Corporation Completes Spin-Off of Concentra

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Completes Spin-Off of Concentra MECHANICSBURG, PENNSYLVANIA — November 25, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced that we have completed our previously announced distribution (the “Distribution”

Select Medical Holdings Corporation 4714 Gettysburg Road, P.O. Box 2034 Mechanicsburg, PA 17055

Exhibit 99.2 FINAL VERSION Select Medical Holdings Corporation 4714 Gettysburg Road, P.O. Box 2034 Mechanicsburg, PA 17055 November 19, 2024 Dear Select Medical Stockholder: On November 6, 2024, the board of directors of Select Medical Holdings Corporation (“Select Medical” or the “Company”), authorized a special stock distribution to its stockholders of 104,093,503 shares of common stock, par val

Select Medical Holdings Corporation Announces Distribution Ratio for Special Stock Distribution to Stockholders

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Distribution Ratio for Special Stock Distribution to Stockholders MECHANICSBURG, PENNSYLVANIA — November 19, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced the distribution ratio for the previ

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Purchase Agreement, dated November 18, 2024, by and among Select Medical Corporation, the initial purchasers named therein and the Guarantors (as defined therein).

Exhibit 1.1 Execution Version $550,000,000 SELECT MEDICAL CORPORATION 6.25% SENIOR NOTES DUE 2032 PURCHASE AGREEMENT November 18, 2024 J.P. Morgan Securities LLC as Representative of the Initial Purchasers c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Ladies and Gentlemen: Select Medical Corporation, a Delaware corporation (the “Company”), proposes to issue and sell to

Select Medical Holdings Corporation Announces Pricing of Offering of 6.250% Senior Notes due 2032 by Select Medical Corporation

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Pricing of Offering of 6.250% Senior Notes due 2032 by Select Medical Corporation MECHANICSBURG, PENNSYLVANIA – November 18, 2024 – Select Medical Holdings Corporation (“Holdings”) (NYSE: SEM), today announced that Select Medical Corporation, a wholly-owned

Select Medical Holdings Corporation Announces Offering of $850 Million of Senior Notes by Select Medical Corporation

Exhibit 99.2 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Offering of $850 Million of Senior Notes by Select Medical Corporation MECHANICSBURG, PENNSYLVANIA – November 18, 2024 – Select Medical Holdings Corporation (“Holdings”) (NYSE: SEM), today announced that Select Medical Corporation (“Select”) has commenced a

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 18, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Cautionary Note Regarding Forward-Looking Statements

Exhibit 99.1 Cautionary Note Regarding Forward-Looking Statements This offering memorandum contains forward-looking statements within the meaning of the federal securities laws. Statements that are not historical facts, including statements about our beliefs and expectations, are forward-looking statements. Forward-looking statements include statements preceded by, followed by or that include the

SEM / Select Medical Holdings Corporation / ORTENZIO ROBERT A - SC 13G/A Passive Investment

SC 13G/A 1 tm2428210d1sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 14)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 8

SEM / Select Medical Holdings Corporation / ORTENZIO ROCCO A - SC 13G/A Passive Investment

SC 13G/A 1 tm2428210d2sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 14)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 8

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Declaration of a Special Stock Distribution to Spin-Off Concentra

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Declaration of a Special Stock Distribution to Spin-Off Concentra MECHANICSBURG, PENNSYLVANIA — November 6, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced that its Board of Directors has appro

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELE

Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2024 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2024 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — October 31, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its third quarter

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2024 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2024 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — August 1, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its second quarter ended

Tax Matters Agreement, dated July 26, 2024, by and between Select Medical Holdings Corporation and Concentra Group Holdings Parent, Inc.

Exhibit 10.2 TAX MATTERS AGREEMENT by and between SELECT MEDICAL HOLDINGS CORPORATION and CONCENTRA GROUP HOLDINGS PARENT, INC. Dated as of July 26, 2024 TAX MATTERS AGREEMENT dated as of July 26, 2024 (this “Agreement”) by and between SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Select”), and CONCENTRA GROUP HOLDINGS PARENT, INC., a Delaware corporation, and an indirect wholly ow

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Employee Matters Agreement, dated July 26, 2024, by and between Select Medical Corporation and Concentra Group Holdings Parent, Inc.

Exhibit 10.3 Execution Version EMPLOYEE MATTERS AGREEMENT by and between Select Medical Corporation and Concentra Group Holdings Parent, Inc. Dated as of July 26, 2024 Table of Contents Page ARTICLE I. Definitions 1 Section 1.01. Definitions 1 Section 1.02. Glossary of Defined Terms 4 ARTICLE II. General 4 Section 2.01. Employee Transfers and Misallocation 4 Section 2.02. Employees Returning From

Separation Agreement, dated July 26, 2024, by and between Select Medical Corporation and Concentra Group Holdings Parent, Inc.

Exhibit 10.1 Execution Version SEPARATION AGREEMENT by and between SELECT MEDICAL CORPORATION and CONCENTRA GROUP HOLDINGS PARENT, INC. Dated as of July 26, 2024 Table of Contents Page ARTICLE I Definitions 1 SECTION 1.01. Definitions 1 ARTICLE II The Separation 10 SECTION 2.01. Transfer of Assets and Assumption of Liabilities 10 SECTION 2.02. Certain Matters Governed Exclusively by Ancillary Agre

Amendment No. 10, dated July 26, 2024, to the Credit Agreement, dated as of March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2, dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019, Amendment No. 4, dated as of December 10, 2019, Amendment No. 5, dated as of June 2, 2021, Amendment No. 6, dated as of February 21, 2023, Amendment No. 7, dated as of May 31, 2023, Amendment No. 8, dated as of July 31, 2023 and Amendment No. 9, dated as of August 31, 2023.

Exhibit 10.5 Execution Version AMENDMENT No. 10, dated as of July 26, 2024 (this “Amendment”), to the Credit Agreement, dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 26, 2024 SELECT MEDICAL HOLDIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 26, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Credit Agreement, dated July 26, 2024, among Concentra Group Holdings Parent, Inc., Concentra Health Services, Inc., JPMorgan Chase Bank, N.A., as Administrative and Collateral Agent, and the other lenders and issuing banks party thereto.

Exhibit 10.6 Execution Version CREDIT AGREEMENT consisting of a $850,000,000 Initial Term Loan Facility, and a $400,000,000 Revolving Credit Facility dated as of July 26, 2024 by and among CONCENTRA GROUP HOLDINGS PARENT, INC., as Holdings CONCENTRA HEALTH SERVICES, INC., as the Borrower The Lenders Party Hereto from Time to Time JPMORGAN CHASE BANK, N.A., as Administrative Agent and Collateral Ag

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT ME

Transition Services Agreement, dated July 26, 2024, by and between Select Medical Corporation and Concentra Group Holdings Parent, Inc.

Exhibit 10.4 Execution Version Transition Services Agreement This TRANSITION SERVICES AGREEMENT (this “Agreement”), dated as of July 26, 2024, is between SELCT MEDICAL CORPORATION, a Delaware corporation (“Select”), and CONCENTRA GROUP HOLDINGS PARENT, INC., a Delaware corporation (“Concentra”). WHEREAS, pursuant to the Separation Agreement, dated as of July 26, 2024 (the “Separation Agreement”),

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2024 SELECT MEDICAL HOLDI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Escrow Agreement, dated July 11, 2024, by and among the Escrow Issuer, the Trustee and the Escrow Agent.

Exhibit 10.1 EXECUTION VERSION CONCENTRA ESCROW ISSUER CORPORATION 6.875% Senior Notes Due 2032 ESCROW AGREEMENT ESCROW AGREEMENT (this “Agreement”), dated as of July 11, 2024, among JPMorgan Chase Bank, N.A., as escrow agent and securities intermediary (in such capacities, the “Escrow Agent”), U.S. Bank Trust Company, National Association, as trustee under the Indenture (as defined herein) (in su

Form of Note (included as Exhibits A1 and A2 to the Indenture filed herewith as Exhibit 4.1).

Exhibit 4.1 CONCENTRA ESCROW ISSUER CORPORATION (whose obligations are to be assumed by CONCENTRA HEALTH SERVICES, INC. subject to the terms and conditions herein) 6.875% SENIOR NOTES DUE 2032 INDENTURE Dated as of July 11, 2024 U.S. Bank Trust Company, National Association Trustee TABLE OF CONTENTS Page ARTICLE 1. DEFINITIONS AND INCORPORATION BY REFERENCE SECTION 1.01 Definitions 1 SECTION 1.02

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 12, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Estimate of Certain Financial Results of its Wholly-Owned Subsidiary Concentra Group Holdings Parent, Inc. for the Second Quarter Ended June 30, 2024

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Estimate of Certain Financial Results of its Wholly-Owned Subsidiary Concentra Group Holdings Parent, Inc. for the Second Quarter Ended June 30, 2024 MECHANICSBURG, PENNSYLVANIA — July 12, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,”

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 26, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation and Concentra Group Holdings Parent, Inc. Announce Pricing of Offering of $650 Million of 6.875% Senior Notes due 2032 by Concentra Escrow Issuer Corporation

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation and Concentra Group Holdings Parent, Inc. Announce Pricing of Offering of $650 Million of 6.875% Senior Notes due 2032 by Concentra Escrow Issuer Corporation MECHANICSBURG, PA – June 26, 2024 – Select Medical Holdings Corporation (“Select”) (NYSE: SEM) and Concentra

Purchase Agreement, dated June 26, 2024, by and among Concentra Escrow Issuer Corporation and the initial purchasers named therein.

Exhibit 1.1 EXECUTION VERSION CONFIDENTIAL $650,000,000 CONCENTRA ESCROW ISSUER CORPORATION 6.875% SENIOR NOTES DUE 2032 PURCHASE AGREEMENT June 26, 2024 J.P. Morgan Securities LLC as Representative of the Initial Purchasers c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Ladies and Gentlemen: Concentra Escrow Issuer Corporation, a Delaware corporation (the “Escrow Issue

As filed with the Securities and Exchange Commission on May 7, 2024

As filed with the Securities and Exchange Commission on May 7, 2024 Registration No.

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Select Medical Holdings Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.

Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2024 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2024 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — May 2, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its first quarter ended Mar

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT M

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 2, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment to the 2020 Equity Incentive Plan of Select Medical Holdings Corporation (filed herewith)

Exhibit 10.1 Execution Version Amendment No. 1 Select Medical Holdings Corporation 2020 Equity Incentive Plan April 25, 2024 Pursuant to the power reserved to it in Section 9.1 of the Select Medical Holdings Corporation 2020 Equity Incentive Plan (the “Plan”), the Board of Directors of Select Medical Holdings Corporation hereby amends the Plan, effective February 13, 2024, as follows: 1. Section 5

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Certificate of Amendment to Certificate of Incorporation of Select Medical Holdings Corporation (filed herewith)

Exhibit 3.1 Execution Version CERTIFICATE OF AMENDMENT OF THE AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF SELECT MEDICAL HOLDINGS CORPORATION. Select Medical Holdings Corporation, a corporation incorporated and existing under and by the virtue of the General Corporation Law of the State of Delaware (the “Corporation”) does hereby certify: FIRST: That, at a meeting of the Board of Director

SEM / Select Medical Holdings Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0027-selectmedicalholdings.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Select Medical Holdings Corp Title of Class of Securities: Common Stock CUSIP Number: 81619Q105 Date of Event Which Requires Filing of this Statement: March 28, 2024 Check the appropriate box

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant      x Filed by a Party other than the Registrant ☐ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Co

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

Use these links to rapidly review the document TABLE OF CONTENTS INDEX TO FINANCIAL STATEMENTS Table of Contents 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Change of Control Agreement, dated as of November 6, 2023, between Select Medical Corporation and Michael F. Malatesta

SELECT MEDICAL CORPORATION 4714 Gettysburg Road Mechanicsburg, PA 17055 November 6, 2023 Mr.

Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2023 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2023 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — February 22, 2024 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its four

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2024 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Subsidiaries of Select Medical Holdings Corporation.

Exhibit 21.1 SUBSIDIARIES OF SELECT MEDICAL HOLDINGS CORPORATION As of December 31, 2023 NAME Jurisdiction of Organization Actra Rehabilitation Associates, Inc. Wisconsin Acuity General Partner, LLC Texas Acuity Healthcare Holdings, Inc. Delaware Acuity Healthcare Management, LLC Louisiana Acuity Healthcare of Ohio, L.L.C. Ohio Acuity Healthcare, LP Louisiana Acuity Holdings, LLC North Carolina Ac

Annual Report on Form 10-K of Select Medical Holdings Corporation filed on February 22, 2024

SELECT MEDICAL HOLDINGS CORPORATION COMPENSATION RECOVERY POLICY (adopted on November 2, 2023) A.

SEM / Select Medical Holdings Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01893-selectmedicalholding.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Select Medical Holdings Corp Title of Class of Securities: Common Stock CUSIP Number: 81619Q105 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate b

SEM / Select Medical Holdings Corporation / ORTENZIO ROBERT A - SC 13G/A Passive Investment

SC 13G/A 1 tm244929d1sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 13)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81

SEM / Select Medical Holdings Corporation / ORTENZIO ROCCO A - SC 13G/A Passive Investment

SC 13G/A 1 tm244929d2sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 13)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELE

Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2023 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2023 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — November 2, 2023 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its third quarter

Select Medical Holdings Corporation Announces

  Exhibit 99.1       FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055   NYSE Symbol: SEM   Select Medical Holdings Corporation Announces   Executive Management Appointments   MECHANICSBURG, PENNSYLVANIA — September 7, 2023 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced 12 executive management appointments, effective Octo

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K current report PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 7, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 001-34465 20-1764048 (State or Other Jurisdiction of Incorporation or

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 31, 2023 SELECT MEDICAL HOLD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 31, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment No. 9, dated August 31, 2023, to the Credit Agreement, dated March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2 dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019, Amendment No. 4, dated as of December 10, 2019, Amendment No. 5, dated as of June 2, 2021, Amendment No. 6, dated as of February 21, 2023, Amendment No. 7, dated as of May 31, 2023 and Amendment No. 8, dated as of July 31, 2023, incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on September 1, 2023 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 9, dated as of August 31, 2023 (this “Amendment”), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT ME

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2023 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2023 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — August 3, 2023 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its second quarter ended

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 1, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment No. 8, dated July 31, 2023, to the Credit Agreement, dated March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2 dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019, Amendment No. 4, dated as of December 10, 2019, Amendment No. 5, dated as of June 2, 2021, Amendment No. 6, dated as of February 21, 2023 and Amendment No. 7, dated as of May 31, 2023, incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on August 1, 2023 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 8, dated as of July 31, 2023 (this “Amendment”), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as Adm

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 31, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2023 SELECT MEDICAL HOLDIN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Estimate of Certain Financial Results for its Second Quarter Ended June 30, 2023 in connection with Refinancing Discussions

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Estimate of Certain Financial Results for its Second Quarter Ended June 30, 2023 in connection with Refinancing Discussions MECHANICSBURG, PENNSYLVANIA — July 19, 2023 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 31, 2023 SELECT MEDICAL HOLDING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 31, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment No. 7, dated May 31, 2023, to the Credit Agreement, dated March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2 dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019, Amendment No. 4, dated as of December 10, 2019, Amendment No. 5, dated as of June 2, 2021 and Amendment No. 6, dated as of February 21, 2023, incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on June 6, 2023 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 7, dated as of May 31, 2023 (this “Amendment”), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as Admi

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2023 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2023 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — May 4, 2023 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its first quarter ended Mar

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT M

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2023 SELECT MEDICAL HOLDI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.    

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K current report PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 1, 2023 SELECT MEDICAL HOLD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K current report PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 1, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact Name of Registrant as Specified in Charter) Delaware 001-34465 20-1764048 (State or Other Jurisdiction of Incorporation or Org

Offer Letter, by and between Select and Christopher S. Weigl, dated April 22, 2022.

Exhibit 10.1 April 22, 2022 Mr. Christopher S. Weigl 16235 Frederick Road Woodbine, MD 21797 Dear Mr. Weigl: We are pleased to outline the terms of your employment with Select Medical Corporation and its subsidiaries or affiliates (collectively, the "Company") as follows: 1. Title: Senior Vice President, Corporate Accounting Services 2. Employment Classification: Full-time 3. Reports to: Mike Mala

, between Old Gettysburg Associates III, LP and Select Medical Corporation.

EXECUTIVE PARK WEST III 4716 GETTYSBURG ROAD MECHANICSBURG, PA 17055 Fourth Addendum to Lease Agreement This Fourth Addendum is made as of this 1st day of December, 2022 by and between Old Gettysburg Associates III L.

Fifth Amendment to Lease Agreement, dated as of December 1, 2022, between Old Gettysburg Associates II, LP and Select Medical Corporation

EXECUTIVE PARK WEST II 4720 GETTYSBURG ROAD MECHANICSBURG, PA 17055 Fifth Amendment to Lease Agreement This Fifth Amendment is made as of this 1st day of December, 2022 by and between Old Gettysburg Associates II, LP (“Landlord”), and Select Medical Corporation, a Delaware corporation ("Tenant").

Third Amendment to Lease Agreement, dated as of December 1, 2022, between Old Gettysburg Associates and Select Medical Corporation

EXECUTIVE PARK WEST I 4718 GETTYSBURG ROAD MECHANICSBURG, PA 17055 Third Amendment to Lease Agreement This Third Amendment is made as of this 1st day of December, 2022 by and between Old Gettysburg Associates, a Pennsylvania general partnership (“Landlord”), and Select Medical Corporation, a Delaware corporation ("Tenant").

Second Addendum to Lease Agreement, dated as of December 1, 2022, between Old Gettysburg Associates IV LP and Select Medical Corporation

EXECUTIVE PARK WEST IV 4714 GETTYSBURG ROAD MECHANICSBURG, PA 17055 Second Addendum to Lease Agreement This Second Addendum is made as of this 1st day of December, 2022 by and between Old Gettysburg Associates IV L.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

Use these links to rapidly review the document TABLE OF CONTENTS INDEX TO FINANCIAL STATEMENTS Table of Contents 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2022 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2022 and Cash Dividend MECHANICSBURG, PENNSYLVANIA — February 23, 2023 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its four

Subsidiaries of Select Medical Holdings Corporation.

Exhibit 21.1 SUBSIDIARIES OF SELECT MEDICAL HOLDINGS CORPORATION As of December 31, 2022 NAME Jurisdiction of Organization Actra Rehabilitation Associates, Inc. Wisconsin Acuity General Partner, LLC Texas Acuity Healthcare Holdings, Inc. Delaware Acuity Healthcare Management, LLC Louisiana Acuity Healthcare of Ohio, L.L.C. Ohio Acuity Healthcare, LP Louisiana Acuity Holdings, LLC North Carolina Ac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 SELECT MEDICAL HO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2023 SELECT MEDICAL HO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2023 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment No. 6, dated February 21, 2023, to the Credit Agreement, dated March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2 dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019, Amendment No. 4, dated as of December 10, 2019 and Amendment No. 5, dated as of June 2, 2021, incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on February 22, 2023 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 6, dated as of February 21, 2023 (this “Amendment”), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as

SEM / Select Medical Holdings Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Select Medical Holdings Corp. Title of Class of Securities: Common Stock CUSIP Number: 81619Q105 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule i

SEM / Select Medical Holdings Corporation / ORTENZIO ROBERT A - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 12)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2022

SEM / Select Medical Holdings Corporation / ORTENZIO ROCCO A - SC 13G/A Passive Investment

SC 13G/A 1 tm235391d2sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 12)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81

Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2022 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2022 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? November 3, 2022 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its third quarter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELE

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT ME

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2022 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2022 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? August 4, 2022 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its second quarter ended

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT M

Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2022 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2022 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? May 5, 2022 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its first quarter ended Mar

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.    )

DEF 14A 1 tm223413-1def14a.htm DEF 14A TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.    ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEFA14A 1 tm228383d2defa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SELE CT MED ICAL HOLD ING S C ORP O R A TION SELE CT MED ICAL HO L D ING S C ORP ORA TION Our Mission SEL E C T MED ICAL WILL P R O VID E AN EX CEPTION A L P AT IENT CARE EX PERIENCE T H AT P R OMO T E S HEAL ING A ND RE C O VER Y IN A C O M P ASSIO

Exhibit 99.1 SELE CT MED ICAL HOLD ING S C ORP O R A TION SELE CT MED ICAL HO L D ING S C ORP ORA TION Our Mission SEL E C T MED ICAL WILL P R O VID E AN EX CEPTION A L P AT IENT CARE EX PERIENCE T H AT P R OMO T E S HEAL ING A ND RE C O VER Y IN A C O M P ASSIO N ATE EN VIR O NMEN T. L EARN MO RE A T 202 1 ANNUAL REPORT A N N U AL REP O R T Overcoming adversity O v er co m i n g ad v e r s i ty 2

Subsidiaries of Select Medical Holdings Corporation.

Exhibit 21.1 SUBSIDIARIES OF SELECT MEDICAL HOLDINGS CORPORATION As of December 31, 2021 NAME Jurisdiction of Organization Actra Rehabilitation Associates, Inc. Wisconsin Acuity General Partner, LLC Texas Acuity Healthcare Holdings, Inc. Delaware Acuity Healthcare Management, LLC Louisiana Acuity Healthcare of Ohio, L.L.C. Ohio Acuity Healthcare, LP Louisiana Acuity Holdings, LLC North Carolina Ac

Fourth Amendment to Lease Agreement, dated as of December 28, 2021, between Old Gettysburg Associates II, LP and Select Medical Corporation incorporated herein by reference to Exhibit 10.81 of the Annual Report on Form 10-K of Select Medical Holdings Corporation filed on February 24, 2022 (Reg. No. 001-34465).

EXECUTIVE PARK WEST II 4720 GETTYSBURG ROAD MECHANICSBURG, PA 17055 Fourth Amendment to Lease Agreement This Fourth Amendment to the Lease Agreement is made as of this 28th day of December, 2021 by and between Old Gettysburg Associates, II, LP ("Landlord"), and Select Medical Corporation ("Tenant").

Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2021 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2021 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? February 24, 2022 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its four

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

Use these links to rapidly review the document TABLE OF CONTENTS INDEX TO FINANCIAL STATEMENTS Table of Contents 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 24, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SEM / Select Medical Holdings Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Select Medical Holdings Corp. Title of Class of Securities: Common Stock CUSIP Number: 81619Q105 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule i

SEM / Select Medical Holdings Corporation / ORTENZIO ROCCO A - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 11)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2021

SEM / Select Medical Holdings Corporation / ORTENZIO ROBERT A - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 11)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2021

Select Medical Holdings Corporation Announces Estimate of Certain Financial Results for its Year Ended December 31, 2021 and Date of Issuance of Actual Financial Results

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Estimate of Certain Financial Results for its Year Ended December 31, 2021 and Date of Issuance of Actual Financial Results MECHANICSBURG, PENNSYLVANIA ? January 17, 2022 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE:

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 17, 2022 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 24, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Interest Purchase Agreement, dated December 24, 2021, by and among Concentra Group Holdings Parent, LLC, Select Medical Corporation, Welsh, Carson, Anderson & Stowe XII, L.P., Dignity Health Holding Corporation and the other signatories thereto.

Exhibit 10.1 INTEREST PURCHASE AGREEMENT This INTEREST PURCHASE AGREEMENT (this ?Agreement?) is entered into as of December 24, 2021, by and among Concentra Group Holdings Parent, LLC, a Delaware limited liability company (the ?Company?), Select Medical Corporation, a Delaware corporation (?Select?), Welsh, Carson, Anderson & Stowe XII, L.P., a Delaware limited partnership (?WCAS?), Dignity Health

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Letter Agreement, dated August 6, 2021, between Robert A. Ortenzio and Select Medical Corporation, incorporated herein by reference to Exhibit 10.2 of the Quarterly Report on Form 10-Q of Select Medical Holdings Corporation filed on November 4, 2021 (Reg. No. 001-34465).

August 6, 2021 CONFIDENTIAL Select Medical Corporation 4714 Gettysburg Road Mechanicsburg, PA 17055 Attn: Michael E.

Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2021 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2021 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? November 4, 2021 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its third quarter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELE

First Addendum to Lease Agreement, dated as of July 21, 2021, between Old Gettysburg Associates V, LP and Select Medical Corporation, incorporated herein by reference to Exhibit 10.1 of the Quarterly Report on Form 10-Q of Select Medical Holdings Corporation filed on November 4, 2021 (Reg. No. 001-34465).

Executive Park West V 4732 Gettysburg Road Mechanicsburg, PA 17055 First Addendum to Lease Agreement This First Addendum to Lease Agreement is made as of the 21st day of July, 2021, by and between Old Gettysburg Associates V, LP, a Pennsylvania general partnership ("Landlord"), and Select Medical Corporation, a Delaware corporation ("Tenant").

First Amendment to Lease Agreement, dated as of August 9, 2021, between Century Park Investments, LP and Select Medical Corporation, incorporated herein by reference to Exhibit 10.3 of the Quarterly Report on Form 10-Q of Select Medical Holdings Corporation filed on November 4, 2021 (Reg. No. 001-34465).

960 CENTURY DRIVE MECHANICSBURG, PA 17055 First Amendment to Lease Agreement This First Amendment is made as of this 9th day of August, 2021 by and between Century Park Investments, LP ("Landlord"), and Select Medical Corporation ("Tenant").

Select Medical Holdings Corporation Announces Appointment of Parvinderjit Singh Khanuja, M.D. to its Board of Directors

EX-99.1 2 tm2131634d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Appointment of Parvinderjit Singh Khanuja, M.D. to its Board of Directors MECHANICSBURG, PENNSYLVANIA – November 2, 2021 – Select Medical Holdings Corporation (“Select Medical”) (NYSE: SEM) today announced the ap

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2021 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2021 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? August 5, 2021 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its second quarter ended

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT ME

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Amendment No. 5, dated June 2, 2021, to the Credit Agreement, dated March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2, dated as of October 26, 2018, Amendment No. 3, dated as of August 1, 2019 and Amendment No. 4, dated as of December 10, 2019, incorporated by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on June 4, 2021 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 5, dated as of June 2, 2021 (this ?Amendment?), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (?Holdings?), SELECT MEDICAL CORPORATION, a Delaware corporation (the ?Borrower?), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as Admi

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 2, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT M

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2021 and Cash Dividend

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2021 and Cash Dividend MECHANICSBURG, PENNSYLVANIA ? May 6, 2021 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its first quarter ended Mar

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 16, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Appointment of Katherine Davisson to its Board of Directors

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Appointment of Katherine Davisson to its Board of Directors MECHANICSBURG, PENNSYLVANIA ? April 16, 2021 ? Select Medical Holdings Corporation (?Select Medical?) (NYSE: SEM) today announced the appointment of Katherine R. Davisson to its Board of Directors

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Select Medical Holdings Corp ** (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 ** (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant t

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use

Glossy pages accompanying the Form 10-K of Select Medical Holdings Corporation for the year ended December 31, 2020

Exhibit 99.1 S E L E C TM E D I C A LH O L D I N G SC O R P O R A T I O N A year of resilience 220 A N N U A LR E P O R T 2SELECT MEDICALI M PROVING QUAL I TY OF LIFE AT R I B U T ET OO U RF R O N T L I N E H E A L T HC A R EP R O F E S S I O N A L S 2 0 2 0 A N N U A L R E P O R T3 D E A RS T O C K H O L D E R As a Company, we faced incredibly challenging times in 2020 as the coronavirus pandemic

- DEF 14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ????) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ?

Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2020 MECHANICSBURG, PENNSYLVANIA ? February 25, 2021 ? Select Medical Holdings Corporation (?Select Medical,? ?we,? ?us,? or ?our?) (NYSE: SEM) today announced results for its fourth quarter and yea

Change of Control Agreement, dated February 18, 2021, between Select Medical Corporation and Thomas P. Mullin.

SELECT MEDICAL CORPORATION 4714 Gettysburg Road Mechanicsburg, Pennsylvania 17055 February 18, 2021 Mr.

Annual Report - 10-K

Use these links to rapidly review the document TABLE OF CONTENTS INDEX TO FINANCIAL STATEMENTS Table of Contents 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Subsidiaries of Select Medical Holdings Corporation.

Exhibit 21.1 SUBSIDIARIES OF SELECT MEDICAL HOLDINGS CORPORATION As of February 1, 2021 NAME Jurisdiction of Organization ACC Capital, LLC Delaware Actra Rehabilitation Associates, Inc. Wisconsin Advantage Rehabilitation Clinics, Inc. Massachusetts Alexandria Sports, Inc. New York Allevant Solutions, LLC Delaware American Current Care of Arizona, P.A. Arizona American Current Care of Arkansas, P.A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 25, 2021 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Form of Restricted Stock Award Agreement under the Select Medical Holdings Corporation 2020 Equity Incentive Plan.

SELECT MEDICAL HOLDINGS CORPORATION RESTRICTED STOCK AWARD AGREEMENT UNDER THE 2020 EQUITY INCENTIVE PLAN This Restricted Stock Award Agreement (this ?Agreement?) is made as of [Grant Date] (the ?Grant Date?), between SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (the ?Company?), and [Name of Grantee], an individual (the ?Participant?).

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: Select Medical Holdings Corp. Title of Class of Securities: Common Stock CUSIP Number: 81619Q105 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule i

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 10)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2020

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 10)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2020

Entry into a Material Definitive Agreement, Financial Statements and Exhibits - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

, 2020, by and among Concentra Group Holdings Parent, LLC, Select Medical Corporation, Welsh, Carson, Anderson & Stowe XII, L.P., Dignity Health Holding Corporation and the other signatories thereto, incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on

Exhibit 10.1 INTEREST PURCHASE AGREEMENT This INTEREST PURCHASE AGREEMENT (this “Agreement”) is entered into as of December 31, 2020, by and among Concentra Group Holdings Parent, LLC, a Delaware limited liability company (the “Company”), Select Medical Corporation, a Delaware corporation (“Select”), Welsh, Carson, Anderson & Stowe XII, L.P., a Delaware limited partnership (“WCAS”), Dignity Health

Financial Statements and Exhibits, Results of Operations and Financial Condition - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2020

Exhibit 99.1 - FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2020 MECHANICSBURG, PENNSYLVANIA — October 29, 2020 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its third quarter ended September

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELE

Third Addendum to Lease Agreement, dated as of May 5, 2020, between Old Gettysburg Associates III, LP and Select Medical Corporation, incorporated herein by reference to Exhibit 10.2 of the Quarterly Report on Form 10-Q of Select Medical Holdings Corporation filed on July 30, 2020 (Reg. No. 001-34465).

Executive Park West III 4716 Gettysburg Road Mechanicsburg, PA Third Addendum to Lease Agreement This Third Addendum to Lease Agreement is made as of the 5th day of May, 2020, by and between Old Gettysburg Associates III, LP, a Pennsylvania general partnership ("Landlord"), and Select Medical Corporation, a Delaware corporation ("Tenant").

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

First Amendment to Lease Agreement, dated as of April 24, 2020, between 225 Grandview Investors, LLC and Select Medical Corporation, incorporated herein by reference to Exhibit 10.1 of the Quarterly Report on Form 10-Q of Select Medical Holdings Corporation filed on July 30, 2020 (Reg. No. 001-34465).

207 ASSOCIATES AND INDEPENDENCE AVENUE INVESTMENTS, LLC 225 Grandview Avenue Camp Hill, PA First Amendment to Lease Agreement This First Amendment is made as of this 24th day of April, 2020, between 207 Associates and Independence Avenue Investments, LLC ("Landlord"), and Select Medical Corporation ("Tenant").

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Press Release, dated July 30, 2020, announcing financial results for the second quarter ended June 30, 2020.

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2020 MECHANICSBURG, PENNSYLVANIA — July 30, 2020 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its second quarter ended June 30, 2020. For

Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Second Quarter Ended June 30, 2020 MECHANICSBURG, PENNSYLVANIA — July 30, 2020 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its second quarter ended June 30, 2020. For

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT ME

- FORM S-8

As filed with the Securities and Exchange Commission on May 13, 2020 Registration No.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELECT M

Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2020 MECHANICSBURG, PENNSYLVANIA — April 30, 2020 — Select Medical Holdings Corporation (“Select Medical,” “we,” “us,” or “our”) (NYSE: SEM) today announced results for its first quarter ended March 31, 2020. Fo

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SEM / Select Medical Holdings Corp. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

April 20, 2020

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation 2020 Annual Meeting of Stockholders to be Held on April 28, 2020 in Virtual Meeting Format Only

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation 2020 Annual Meeting of Stockholders to be Held on April 28, 2020 in Virtual Meeting Format Only MECHANICSBURG, PENNSYLVANIA – April 20, 2020 – As previously announced, in light of public health concerns regarding the coronavirus or COVID-19, Select Medical Holdings C

Financial Statements and Exhibits, Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 3, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Withdraws its Business Outlook for 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Withdraws its Business Outlook for 2020 MECHANICSBURG, PENNSYLVANIA – April 3, 2020 – Select Medical Holdings Corporation (“Select”) (NYSE: SEM) has withdrawn its business outlook for calendar year 2020 previously provided in its press releases dated January 27, 2020

SEM / Select Medical Holdings Corp. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use

Select Medical Holdings Corporation Announces Location Change for its 2020 Annual Meeting of Stockholders to be Held on April 28, 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Location Change for its 2020 Annual Meeting of Stockholders to be Held on April 28, 2020 MECHANICSBURG, PENNSYLVANIA – March 31, 2020 – Select Medical Holdings Corporation (the “Company”) (NYSE: SEM), today announced a change in the location of the Company’

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SEM / Select Medical Holdings Corp. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use

Glossy pages accompanying the Form 10-K of Select Medical Holdings Corporation for the year ended December 31, 2019.

Exhibit 99.1 S E L E C TM E D I C A LH O L D I N G SC O R P O R A T I O N A focus on quality A N N U A LR E P O R T OURC OMMIT MENTT OQU ALITYCARE Quality in the healthcare setting is often defined by measures that keep patients safe as well as mark their intended targets of recovery. Our metrics for success are respectively defined by each division and based on both internal and industry standard

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation 2020 Equity Incentive Plan, incorporated herein by reference to Appendix A of the Definitive Proxy Statement on Schedule 14A of Select Medical Holdings Corporation filed March 4, 2020 (Reg. No. 001-34465).

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

J.P. MORGAN GLOBAL HIGH YIELD & LEVERAGED FINANCE CONFERENCE FEBRUARY 24 - 26, 2020

Exhibit 99.1 J.P. MORGAN GLOBAL HIGH YIELD & LEVERAGED FINANCE CONFERENCE FEBRUARY 24 - 26, 2020 2 Forward - Looking Statements This presentation may contain forward - looking statements based on current management expectations . Numerous factors, including those related to market conditions and those detailed from time - to - time in the Company’s filings with the Securities and Exchange Commissi

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 24, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Subsidiaries of Select Medical Holdings Corporation.

Exhibit 21.1 SUBSIDIARIES OF SELECT MEDICAL HOLDINGS CORPORATION As of February 1, 2020 NAME Jurisdiction of Organization AbsoluteCVO, Inc. Michigan ACC Capital, LLC Delaware Actra Rehabilitation Associates, Inc. Wisconsin Advantage Rehabilitation Clinics, Inc. Massachusetts Alexandria Sports, Inc. New York Allevant Solutions, LLC Delaware Ambulatory Care Solutions of Arkansas LLC Arkansas Ambulat

Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2019

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Fourth Quarter and Year Ended December 31, 2019 MECHANICSBURG, PENNSYLVANIA — February 20, 2020 — Select Medical Holdings Corporation (“Select Medical”) (NYSE: SEM) today announced results for its fourth quarter and year ended December 31, 2

Description of Registrant’s Securities, incorporated herein by reference to Exhibit 4.3 of Select Medical Holdings Corporation's Annual Report on Form 10-K for the fiscal year December 31, 2019, filed on February 20, 2020 (Reg. No. 001-34465).

EXHIBIT 4.3 DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 DESCRIPTION OF CAPITAL STOCK The following descriptions are summaries of the material terms of our restated certificate of incorporation (“Restated Certificate of Incorporation”) and amended and restated bylaws (“Bylaws”), and relevant sections of the Delaware General Corpora

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Annual Report - 10-K

Use these links to rapidly review the document TABLE OF CONTENTS INDEX TO FINANCIAL STATEMENTS Table of Contents 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 12, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SEM / Select Medical Holdings Corp. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* SELECT MEDICAL HOLDINGS CORP (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

SEM / Select Medical Holdings Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: Select Medical Holdings Corp Title of Class of Securities: Common Stock CUSIP Number: 81619Q105 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is

Interest Purchase Agreement, dated February 1, 2020, by and among Concentra Group Holdings Parent, LLC, Select Medical Corporation, Welsh, Carson, Anderson & Stowe XII, L.P., Dignity Health Holding Corporation and the other signatories thereto, incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on February 3, 2020 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version INTEREST PURCHASE AGREEMENT This INTEREST PURCHASE AGREEMENT (this “Agreement”) is entered into as of February 1, 2020, by and among Concentra Group Holdings Parent, LLC, a Delaware limited liability company (the “Company”), Select Medical Corporation, a Delaware corporation (“Select”), Welsh, Carson, Anderson & Stowe XII, L.P., a Delaware limited partnership (“WCAS”

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

SEM / Select Medical Holdings Corp. / ORTENZIO ROCCO A - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 9)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2019 (

SEM / Select Medical Holdings Corp. / ORTENZIO ROBERT A - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. 9)* Select Medical Holdings Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 81619Q105 (CUSIP Number) December 31, 2019 (

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Business Outlook for 2020 and Release Date for Fourth Quarter and Full Year 2019 Financial Results

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Business Outlook for 2020 and Release Date for Fourth Quarter and Full Year 2019 Financial Results MECHANICSBURG, PENNSYLVANIA – January 27, 2020 - Select Medical Holdings Corporation (“Select Medical”) (NYSE: SEM), today announced its business outlook for

Interest Purchase Agreement, dated January 1, 2020, by and among Concentra Group Holdings Parent, LLC, Select Medical Corporation, Welsh, Carson, Anderson & Stowe XII, L.P., Dignity Health Holding Corporation and the other signatories thereto, incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K, filed on January 2, 2020 (Reg. No. 001-34465).

Exhibit 10.1 execution version INTEREST PURCHASE AGREEMENT This INTEREST PURCHASE AGREEMENT (this “Agreement”) is entered into as of January 1, 2020, by and among Concentra Group Holdings Parent, LLC, a Delaware limited liability company (the “Company”), Select Medical Corporation, a Delaware corporation (“Select”), Welsh, Carson, Anderson & Stowe XII, L.P., a Delaware limited partnership (“WCAS”)

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 1, 2020 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Corporation Closes Private Placement of $675 Million of 6.250% Senior Notes due 2026

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Corporation Closes Private Placement of $675 Million of 6.250% Senior Notes due 2026 MECHANICSBURG, PENNSYLVANIA – December 10, 2019 – Select Medical Holdings Corporation (“Holdings”) (NYSE: SEM), today announced that Select Medical Corporation (“Select”) has completed its private placem

Amendment No. 4, dated December 10, 2019, to the Credit Agreement, dated March 6, 2017, by and among Select Medical Holdings Corporation, Select Medical Corporation, JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, and the other lenders and issuing banks party thereto, as amended by Amendment No. 1, dated as of March 22, 2018, Amendment No. 2, dated as of October 26, 2018 and Amendment No. 3, dated as of August 1, 2019, incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K of Select Medical Holdings Corporation filed December 11, 2019 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 4, dated as of December 10, 2019 (this “Amendment”), to the Credit Agreement dated as of March 6, 2017, by and among SELECT MEDICAL HOLDINGS CORPORATION, a Delaware corporation (“Holdings”), SELECT MEDICAL CORPORATION, a Delaware corporation (the “Borrower”), the Lenders and Issuing Banks party thereto from time to time and JPMORGAN CHASE BANK, N.A., as

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

First Lien Term Loan Credit Agreement, dated December 10, 2019, by and among Select Medical Corporation, Concentra Inc. and Concentra Holdings, Inc., incorporated herein by reference to Exhibit 10.2 of the Current Report on Form 8-K of Select Medical Holdings Corporation filed December 11, 2019 (Reg. No. 001-34465).

Exhibit 10.2 Execution Version FIRST LIEN TERM LOAN CREDIT AGREEMENT consisting of a $1,240,297,917.21 Tranche B Term Loan Facility dated as of December 10, 2019 by and among CONCENTRA HOLDINGS, INC., as Holdings CONCENTRA INC., as the Borrower The Lenders Party Hereto from Time to Time SELECT MEDICAL CORPORATION, as Administrative Agent and Collateral Agent TABLE OF CONTENTS Page ARTICLE I Defini

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Purchase Agreement, dated December 5, 2019, by and among Select Medical Corporation, the initial purchasers named therein and the Guarantors (as defined therein).

Exhibit 1.1 Execution Version $675,000,000 Select Medical Corporation 6.250% Senior Notes due 2026 PURCHASE AGREEMENT December 5, 2019 December 5, 2019 J.P. Morgan Securities LLC as Representative of the Initial Purchasers c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Ladies and Gentlemen: Select Medical Corporation, a Delaware corporation (the “Company”), proposes to

Select Medical Corporation Announces Pricing and Upsizing of its Offering of an Additional $675 million of its 6.250% Senior Notes due 2026

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Corporation Announces Pricing and Upsizing of its Offering of an Additional $675 million of its 6.250% Senior Notes due 2026 MECHANICSBURG, PENNSYLVANIA – December 5, 2019 – Select Medical Holdings Corporation (“Holdings”) (NYSE: SEM), today announced that Select Medical Corporation (“Se

Select Medical Corporation Announces Proposal to Commence Offering $625 Million of Senior Notes

Exhibit 99.2 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Corporation Announces Proposal to Commence Offering $625 Million of Senior Notes MECHANICSBURG, PENNSYLVANIA – December 5, 2019 – Select Medical Holdings Corporation (“Holdings”) (NYSE: SEM), today announced that Select Medical Corporation (“Select”) proposes to commence an offering thro

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 5, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Forward-looking statements

Exhibit 99.1 Forward-looking statements This offering memorandum contains forward-looking statements within the meaning of the federal securities laws. Statements that are not historical facts, including statements about our beliefs and expectations, are forward-looking statements. Forward-looking statements include statements preceded by, followed by or that include the words “may,” “could,” “wou

BANK OF AMERICA MERRILL LYNCH LEVERAGED FINANCE CONFERENCE DECEMBER 2 - 4, 2019

Exhibit 99.1 BANK OF AMERICA MERRILL LYNCH LEVERAGED FINANCE CONFERENCE DECEMBER 2 - 4, 2019 2 Forward - Looking Statements This presentation may contain forward - looking statements based on current management expectations . Numerous factors, including those related to market conditions and those detailed from time - to - time in the Company’s filings with the Securities and Exchange Commission,

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 3, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 25, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2019

Exhibit 99.1 FOR IMMEDIATE RELEASE 4714 Gettysburg Road Mechanicsburg, PA 17055 NYSE Symbol: SEM Select Medical Holdings Corporation Announces Results For Its Third Quarter Ended September 30, 2019 MECHANICSBURG, PENNSYLVANIA — October 31, 2019 — Select Medical Holdings Corporation (“Select Medical”) (NYSE: SEM) today announced results for its third quarter ended September 30, 2019. For the third

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbers: 001-34465 SELE

Amendment No. 6, dated September 20, 2019, to the First Lien Credit Agreement, dated as of June 1, 2015, among Concentra Holdings Inc., MJ Acquisition Corporation, Concentra Inc., the lenders party thereto and JPMorgan Chase Bank, N.A., as Administrative Agent and Collateral Agent, as amended by Amendment No. 1, dated as of September 26, 2016, Amendment No. 2, dated as of March 20, 2017, Amendment No. 3, dated as of February 1, 2018, Amendment No. 4, dated as of October 26, 2018, and Amendment No. 5, dated as of April 8, 2019, incorporated herein by reference to Exhibit 10.1 of the Current Report on Form 8-K of Select Medical Holdings Corporation filed September 24, 2019 (Reg. No. 001-34465).

Exhibit 10.1 Execution Version AMENDMENT No. 6, dated as of September 20, 2019 (this “Amendment”), among CONCENTRA INC., a Delaware corporation (as successor by merger to MJ Acquisition Corporation) (the “Borrower”), the several banks and other financial institutions or entities from time to time party to the Credit Agreement as Lenders (the “Lenders”), JPMORGAN CHASE BANK, N.A., as Administrative

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K current report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2019 SELECT MEDICAL HOLDINGS CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-34465 20-1764048 (State or other jurisdiction of Incorporation) (Commission File Number) (I.