PACW / Pacwest Bancorp - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its cha

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) November 30, 2023 PacWest Bancorp

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) November 30, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

As filed with the Securities and Exchange Commission on December 1, 2023

As filed with the Securities and Exchange Commission on December 1, 2023 Registration No.

As filed with the Securities and Exchange Commission on December 1, 2023

As filed with the Securities and Exchange Commission on December 1, 2023 Registration No.

THIRD AMENDED AND RESTATED BYLAWS PACWEST BANCORP A Delaware Corporation Effective November 30, 2023 TABLE OF CONTENTS

Exhibit 3.2 THIRD AMENDED AND RESTATED BYLAWS OF PACWEST BANCORP A Delaware Corporation Effective November 30, 2023 TABLE OF CONTENTS Page ARTICLE I OFFICES Section 1. Registered Office 1 Section 2. Other Offices 1 ARTICLE II MEETINGS OF STOCKHOLDERS Section 1. Place of Meetings 1 Section 2. Annual Meetings 1 Section 3. Special Meetings 2 Section 4. Notice 2 Section 5. Adjournments and Postponemen

As filed with the Securities and Exchange Commission on December 1, 2023

As filed with the Securities and Exchange Commission on December 1, 2023 Registration No.

As filed with the Securities and Exchange Commission on December 1, 2023

As filed with the Securities and Exchange Commission on December 1, 2023 Registration No.

CERTIFICATE OF INCORPORATION PACWEST BANCORP

Exhibit 3.1 CERTIFICATE OF INCORPORATION OF PACWEST BANCORP First: The name of the Corporation is PacWest Bancorp (the “Corporation”). Second: The address of the registered office of the Corporation in the State of Delaware is 1209 Orange Street, Wilmington, County of New Castle, Delaware 19801. The name of its registered agent at that address is The Corporation Trust Company. Third: The purpose o

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) November 22, 2023 PacWest Bancorp

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) November 22, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

Banc of California and PacWest Bancorp Receive Stockholder Approvals for their Merger Merger proposal receives in excess of 98% approval of the shares voted from each of Banc of California and PacWest Bancorp stockholders

Exhibit 99.1 Banc of California and PacWest Bancorp Receive Stockholder Approvals for their Merger Merger proposal receives in excess of 98% approval of the shares voted from each of Banc of California and PacWest Bancorp stockholders SANTA ANA, Calif. and LOS ANGELES, Calif -(BUSINESS WIRE; GLOBE NEWSWIRE)- Banc of California, Inc. (“Banc of California”) (NYSE: BANC) and PacWest Bancorp (“PacWest

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: November 22, 2023

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: November 22, 2023 BANC OF CALIFORNIA, INC. (Exact name of registrant as specified in its charter) Maryland 001-35522 04-3639825 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Id

Banc of California and PacWest Bancorp Receive Stockholder Approvals for their Merger Merger proposal receives in excess of 98% approval of the shares voted from each of Banc of California and PacWest Bancorp stockholders

Exhibit 99.1 Banc of California and PacWest Bancorp Receive Stockholder Approvals for their Merger Merger proposal receives in excess of 98% approval of the shares voted from each of Banc of California and PacWest Bancorp stockholders SANTA ANA, Calif. and LOS ANGELES, Calif -(BUSINESS WIRE; GLOBE NEWSWIRE)- Banc of California, Inc. (“Banc of California”) (NYSE: BANC) and PacWest Bancorp (“PacWest

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: November 14, 2023

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: November 14, 2023 BANC OF CALIFORNIA, INC. (Exact name of registrant as specified in its charter) Maryland 001-35522 04-3639825 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Id

Other Events

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) November 14, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

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) November 14, 2023 PacWest Bancorp

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) November 14, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified

Banc of California Announces Appointments of Four Directors to its Board of Directors in Connection with its Merger with PacWest Bancorp

Exhibit 99.1 Banc of California Announces Appointments of Four Directors to its Board of Directors in Connection with its Merger with PacWest Bancorp SANTA ANA, Calif. — October 26, 2023 — Banc of California, Inc. (“Banc of California”) (NYSE: BANC) today announced the appointments of Todd Schell, a principal of Warburg Pincus LLC, and John M. Eggemeyer, Paul R. Burke, and Susan E. Lester, each di

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): October 26, 2023

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): October 26, 2023 BANC OF CALIFORNIA, INC. (Exact name of registrant as specified in its charter) Maryland 001-35522 04-3639825 (State or other jurisdiction of incorporation) (Commiss

Banc of California Announces Appointments of Four Directors to its Board of Directors in Connection with its Merger with PacWest Bancorp

Filed by Banc of California, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: PacWest Bancorp Commission File No.: 001-36408 Banc of California Announces Appointments of Four Directors to its Board of Directors in Connection with its Merger with PacWest Bancorp SANTA ANA, Calif. — October 26,

Banc of California, Inc.

Filed by Banc of California, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: PacWest Bancorp Commission File No.: 001-36408 Banc of California, Inc. Third Quarter Earnings Conference Call Tuesday, October 24, 2023, 1:00 PM Eastern CORPORATE PARTICIPANTS Jared Wolff - Chairman, President and

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) October 24, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2023 BANC OF CALIFORNIA, INC. (Exact n

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K in Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2023 BANC OF CALIFORNIA, INC.

Banc of California Reports Net Income of $42.6 million, with Stable Deposit Mix and Improved Net Interest Margin in Third Quarter 2023 Financial Results

Banc of California Reports Net Income of $42.6 million, with Stable Deposit Mix and Improved Net Interest Margin in Third Quarter 2023 Financial Results SANTA ANA, Calif., (October 24, 2023) — Banc of California, Inc. (NYSE: BANC) (“Banc of California”) today reported net income of $42.6 million, or $0.74 per diluted common share, for the third quarter of 2023. This compares to net income of $17.9

October 24, 2023

Exhibit 99.1 October 24, 2023 PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER 2023 FOR IMMEDIATE RELEASE THIRD Quarter 2023 Highlights ● Net loss available to common stockholders of $33.3 million, or a loss of $0.28 per diluted share ● Pending merger with Banc of California, Inc. is on track with all regulatory approvals received and is expected to close on or about November 30, 2023 ● The

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) October 24, 2023 PacWest Bancorp (

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) October 24, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

www.bancofcal.com Investor Presentation 2023 Third Quarter Earnings 2 This presentation includes forward-looking statements within the meaning of the “Safe-Harbor” provisions of the Private Securities Litigation Reform Act of 1995. Words or phrases s

banc3q23investordeckvf www.bancofcal.com Investor Presentation 2023 Third Quarter Earnings 2 This presentation includes forward-looking statements within the meaning of the “Safe-Harbor” provisions of the Private Securities Litigation Reform Act of 1995. Words or phrases such as “believe,” “will,” “should,” “will likely result,” “are expected to,” “will continue,” “is anticipated,” “estimate,” “pr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Statement  ☐ Definitive Additional Materials  ☐ Soliciting Material under §240.

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) October 19, 2023 PacWest Bancorp (

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) October 19, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

Page 1

Exhibit 99.1 October 19, 2023 PACWEST BANCorp and BaNC OF CALIFORNIA RECEIVE FINAL REGULATORY APPROVAL FOR MERGER FOR IMMEDIATE RELEASE LOS ANGELES, Calif.-(GLOBE NEWSWIRE)-PacWest Bancorp (“PacWest”) (Nasdaq: PACW) today announced that the Board of Governors of the Federal Reserve System granted its approval of the previously announced combination of PacWest and Banc of California, Inc. (“Banc of

Financial Statements and Exhibits, Other Events

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) October 19, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

Page 1

Exhibit 99.1 October 19, 2023 PACWEST BANCorp and BaNC OF CALIFORNIA RECEIVE FINAL REGULATORY APPROVAL FOR MERGER FOR IMMEDIATE RELEASE LOS ANGELES, Calif.-(GLOBE NEWSWIRE)-PacWest Bancorp (“PacWest”) (Nasdaq: PACW) today announced that the Board of Governors of the Federal Reserve System granted its approval of the previously announced combination of PacWest and Banc of California, Inc. (“Banc of

Banc of California Receives Final Regulatory Approval for its Merger with PacWest Bancorp

Exhibit 99.1 Banc of California Receives Final Regulatory Approval for its Merger with PacWest Bancorp SANTA ANA, Calif. — October 19, 2023 — Banc of California, Inc. (“Banc of California”) (NYSE: BANC) and PacWest Bancorp (“PacWest”) (Nasdaq: PACW) today announced that the Board of Governors of the Federal Reserve System granted its approval of the previously announced combination of Banc of Cali

UNITED STATES

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: October 19, 2023 BANC OF CALIFORNIA, INC. (Exact name of registrant as specified in its charter) Maryland 001-35522 04-3639825 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Ide

Filed by Banc of California, Inc.

Filed by Banc of California, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: PacWest Bancorp Commission File No.: 001-36408 Banc of California and Rise Economy Announce $4.1 Billion Community Benefits Plan Joint Release – October 3, 2023 SANTA ANA, Calif. / SAN FRANCISCO, Calif.— (BUSINESS W

Telephone: 1-310-712-6600 Facsimile: 1-310-712-8800

Telephone: 1-310-712-6600 Facsimile: 1-310-712-8800 WWW.SULLCROM.COM 1888 Century Park East Los Angeles, California 90067-1725 New York • Palo Alto • washington, D.C. Brussels • Frankfurt • london • paris Beijing • Hong Kong • Tokyo Melbourne • Sydney September 29, 2023 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance Office of Finance 100 F Street, NE Washington,

Banc of California Names Debora Vrana as Executive Vice President & Chief Communications Officer New role signals emphasis on brand strategy to support growth

Filed by Banc of California, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: PacWest Bancorp Commission File No.: 001-36408 Banc of California Names Debora Vrana as Executive Vice President & Chief Communications Officer New role signals emphasis on brand strategy to support growth Company R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in i

AGREEMENT AND PLAN OF MERGER by and among PACWEST BANCORP, BANC OF CALIFORNIA, INC., CAL MERGER SUB, INC. Dated as of July 25, 2023 TABLE OF CONTENTS

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among PACWEST BANCORP, BANC OF CALIFORNIA, INC., and CAL MERGER SUB, INC. Dated as of July 25, 2023 TABLE OF CONTENTS Page ARTICLE I THE MERGER 1.1 The Merger 2 1.2 Closing 2 1.3 Effective Time 2 1.4 Effects of the Merger 2 1.5 Conversion of PACW Common Stock 3 1.6 PACW Preferred Stock 4 1.7 Merger Sub Common Stock 4 1.8 Treatment o

FORM OF BANC VOTING AGREEMENT

Exhibit 10.1 FORM OF BANC VOTING AGREEMENT July 25, 2023 PacWest Bancorp 9701 Wilshire Boulevard Suite 700 Beverly Hills, CA 90212 Ladies and Gentlemen: As a holder of the common stock, par value $0.01 per share, of Banc of California, Inc., a Maryland Corporation (“BANC”) (the “BANC Common Stock”), the undersigned (the “Stockholder”) understands that BANC, PacWest Bancorp, a Delaware corporation

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): July 31, 2023 (July 25, 2023) Pac

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): July 31, 2023 (July 25, 2023) PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State or other jurisdiction of incorporation) (Comm

AGREEMENT AND PLAN OF MERGER by and among PACWEST BANCORP, BANC OF CALIFORNIA, INC., CAL MERGER SUB, INC. Dated as of July 25, 2023 TABLE OF CONTENTS

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among PACWEST BANCORP, BANC OF CALIFORNIA, INC., and CAL MERGER SUB, INC. Dated as of July 25, 2023 TABLE OF CONTENTS Page ARTICLE I THE MERGER 1.1 The Merger 2 1.2 Closing 2 1.3 Effective Time 2 1.4 Effects of the Merger 2 1.5 Conversion of PACW Common Stock 3 1.6 PACW Preferred Stock 4 1.7 Merger Sub Common Stock 4 1.8 Treatment o

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): July 31, 2023 (July 25, 2023) Pac

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): July 31, 2023 (July 25, 2023) PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State or other jurisdiction of incorporation) (Comm

FORM OF BANC VOTING AGREEMENT

Exhibit 10.1 FORM OF BANC VOTING AGREEMENT July 25, 2023 PacWest Bancorp 9701 Wilshire Boulevard Suite 700 Beverly Hills, CA 90212 Ladies and Gentlemen: As a holder of the common stock, par value $0.01 per share, of Banc of California, Inc., a Maryland Corporation (“BANC”) (the “BANC Common Stock”), the undersigned (the “Stockholder”) understands that BANC, PacWest Bancorp, a Delaware corporation

INVESTMENT AGREEMENT by and between BANC OF CALIFORNIA, INC., CB LAKER BUYER L.P. Dated as of July 25, 2023 TABLE OF CONTENTS

Exhibit 10.3 INVESTMENT AGREEMENT by and between BANC OF CALIFORNIA, INC., and CB LAKER BUYER L.P. Dated as of July 25, 2023 TABLE OF CONTENTS Page ARTICLE I PURCHASE; CLOSING Section 1.1 Purchase 2 Section 1.2 Closing 2 ARTICLE II REPRESENTATIONS AND WARRANTIES Section 2.1 Material Adverse Effect 7 Section 2.2 Representations and Warranties of the Company 9 Section 2.3 Representations and Warrant

INVESTMENT AGREEMENT by and between BANC OF CALIFORNIA, INC., WP CLIPPER GG 14 L.P. WP CLIPPER FS II L.P. Dated as of July 25, 2023 TABLE OF CONTENTS

Exhibit 10.2 INVESTMENT AGREEMENT by and between BANC OF CALIFORNIA, INC., WP CLIPPER GG 14 L.P. and WP CLIPPER FS II L.P. Dated as of July 25, 2023 TABLE OF CONTENTS Page ARTICLE I PURCHASE; CLOSING Section 1.1 Purchase 2 Section 1.2 Closing 3 ARTICLE II REPRESENTATIONS AND WARRANTIES Section 2.1 Material Adverse Effect 8 Section 2.2 Representations and Warranties of the Company 10 Section 2.3 Re

FORM OF PACW VOTING AGREEMENT July 25, 2023

Exhibit 10.1 EXECUTION VERSION FORM OF PACW VOTING AGREEMENT July 25, 2023 Banc of California, Inc 3 MacArthur Place Santa Ana, CA 92707 Ladies and Gentlemen: As a holder of PACW Common Stock (as defined below), the undersigned (the “Stockholder”) understands that PacWest Bancorp, a Delaware corporation (“PACW”), Banc of California, Inc., a Maryland corporation (“BANC”), and Cal Merger Sub, Inc.,

AGREEMENT AND PLAN OF MERGER by and among PACWEST BANCORP, BANC OF CALIFORNIA, INC., CAL MERGER SUB, INC. Dated as of July 25, 2023 TABLE OF CONTENTS

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among PACWEST BANCORP, BANC OF CALIFORNIA, INC., and CAL MERGER SUB, INC. Dated as of July 25, 2023 TABLE OF CONTENTS Page ARTICLE I THE MERGER 1.1 The Merger 2 1.2 Closing 2 1.3 Effective Time 2 1.4 Effects of the Merger 2 1.5 Conversion of PACW Common Stock 3 1.6 PACW Preferred Stock 3 1.7 Merger Sub Common Stock 4 1.8 Treatment o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549

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): July 25, 2023 BANC OF CALIFORNIA, INC. (Exact name of registrant as specified in its charter) Maryland 001-35522 001-35522 (State or other jurisdiction of incorporation) (Commission

Filed by: PacWest Bancorp

Filed by: PacWest Bancorp Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: PacWest Bancorp Commission File No.

Banc of California, Inc. – PacWest Bancorp Joint Transaction Announcement and Q2 Earnings Conference Call July 25, 2023 5:30 PM Eastern

Filed by Banc of California, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934 Subject Company: PacWest Bancorp Commission File No.: 001-36408 Banc of California, Inc. – PacWest Bancorp Joint Transaction Announcement and Q2 Earnings Conference Call July 25, 2023 5:30 PM Eastern Corporate Participants • Jared W

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): July 25, 2023 PacWest Bancorp (Ex

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): July 25, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State or other jurisdiction of incorporation) (Commission File Numb

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: July 25, 2023

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: July 25, 2023 BANC OF CALIFORNIA, INC. (Exact name of registrant as specified in its charter) Maryland 001-35522 001-35522 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identif

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) July 25, 2023 PacWest Bancorp (Exa

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) July 25, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

2 DISCLAIMER Cautionary Note Regarding Forward-Looking Statements This document contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Banc of California and PacW

Exhibit 99.2 Creating the premier California business bank July 25, 2023 2 DISCLAIMER Cautionary Note Regarding Forward-Looking Statements This document contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Banc of California and PacWest and the proposed investment by Warburg Pincus LLC and Centerbridge Partne

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): July 25, 2023 PacWest Bancorp (Ex

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): July 25, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State or other jurisdiction of incorporation) (Commission File Numb

Banc of California and PacWest Announce Transformational Merger and $400 Million Equity Raise from Warburg Pincus and Centerbridge

Exhibit 99.1 Banc of California and PacWest Announce Transformational Merger and $400 Million Equity Raise from Warburg Pincus and Centerbridge Combination will create California’s premier relationship-focused business bank · Combined $36 billion asset bank with extensive Southern CA footprint to be headquartered in Los Angeles · 20%+ accretion to BANC’s 2024 Estimated EPS and immediately 3% accre

Banc of California and PacWest Announce Transformational Merger and $400 Million Equity Raise from Warburg Pincus and Centerbridge

Exhibit 99.1 Banc of California and PacWest Announce Transformational Merger and $400 Million Equity Raise from Warburg Pincus and Centerbridge Combination will create California’s premier relationship-focused business bank · Combined $36 billion asset bank with extensive Southern CA footprint to be headquartered in Los Angeles · 20%+ accretion to BANC’s 2024 Estimated EPS and immediately 3% accre

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Exhibit 99.1 July 25, 2023 PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER 2023 FOR IMMEDIATE RELEASE SECOND Quarter 2023 Highlights · Net loss available to common stockholders of $207.4 million, or a loss of $1.75 per diluted share as the quarter was impacted by items related to loan sales and restructuring of our Civic subsidiary · Adjusted earnings of $36.0 million and adjusted diluted

2 DISCLAIMER Cautionary Note Regarding Forward-Looking Statements This document contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Banc of California and PacW

Exhibit 99.2 Creating the premier California business bank July 25, 2023 2 DISCLAIMER Cautionary Note Regarding Forward-Looking Statements This document contains certain forward-looking statements within the meaning of the federal securities laws with respect to the proposed transaction between Banc of California and PacWest and the proposed investment by Warburg Pincus LLC and Centerbridge Partne

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .. Commission File No. 001-36408 A. FULL TITLE OF THE PLAN AND THE ADDRESS OF THE PLAN,

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) June 22, 2023 PacWest Bancorp (Exa

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) June 22, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

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) May 19, 2023 PacWest Bancorp (Exac

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) May 19, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identi

Form of Non-Employee Director Stock Award Agreement and Grant Notice pursuant to the Company's Amended and Restated PacWest Bancorp 2017 Stock Incentive Plan (Filed herewith).

EX-10.1 2 a033123exhibit101.htm EX-10.1 Exhibit 10.1 PACWEST BANCORP STOCK INCENTIVE PLAN NOTICE OF STOCK AWARD GRANT This Notice of Stock Award Grant is part of the Stock Award Agreement between Grantee and the Company dated and is of no force and effect until the Stock Award Agreement is signed by Grantee and the Company’s representative and this Notice of Stock Award Grant is signed by Grantee.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in

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) May 2, 2023 PacWest Bancorp (Exact

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) May 2, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identif

PACific western bank issues UPDATE

Exhibit 99.1 May 3, 2023 PACific western bank issues UPDATE FOR IMMEDIATE RELEASE Los Angeles, California - In light of recent reporting regarding strategic actions, PacWest Bancorp (Nasdaq: PACW) (the “Company”) provides the following update: Our message remains consistent with what was conveyed last week with earnings. As previously announced, the Company has explored strategic asset sales, incl

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) May 4, 2023 PacWest Bancorp (Exact

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) May 4, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identif

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Exhibit 99.1 April 25, 2023 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER 2023 FOR IMMEDIATE RELEASE first Quarter 2023 Highlights • Net loss available to common stockholders of $1.21 billion, or a loss of $10.22 per diluted share • Adjusted earnings of $89.4 million, or $0.66 per diluted share, which excludes non-cash goodwill impairment, and severance and contract termination expense (

Investor Presentation April 25, 2023

Exhibit 99.2 Investor Presentation April 25, 2023 First Quarter 2023 | PACW | p. 2 • PacWest reported a loss of $10.22 per diluted share mainly due to a $1.38 billion goodwill impairment, which is a non - cash charge and has no impact on our regulatory capital ratios, cash flows, or liquidity position • Adjusted EPS would have been $ 0.66 (1) , excluding goodwill impairment and severance & contrac

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) April 25, 2023 PacWest Bancorp (Ex

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) April 25, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 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 ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a6(e)(2)) ☐ Defin

COURTESY PDF OF PROXY STATEMENT

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 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 ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a6(e)(2)) ☒ Defin

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 22, 2023 PacWest Bancorp (Ex

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 22, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

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Exhibit 99.1 March 22, 2023 PACific western bank PROVIDES FURTHER UPDATE AND DETAILS ON FINANCIAL STRENGTH FOR IMMEDIATE RELEASE Los Angeles, California - Pacific Western Bank (the “Bank”), the primary subsidiary of PacWest Bancorp (NASDAQ: PACW) (the “Company”), today issues the following update regarding its financial strength, including liquidity and deposits, as well as other recent developmen

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Exhibit 99.1 March 17, 2023 PACIFIC WESTERN BANK ISSUES END OF WEEK UPDATE FOR IMMEDIATE RELEASE Los Angeles, California - Pacific Western Bank, the primary subsidiary of PacWest Bancorp (NASDAQ: PACW), today issued the following statement reaffirming its financial strength. Pacific Western Bank continues to have solid liquidity, with over $10.8 billion in available cash as of March 17, 2023. Avai

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 17, 2023 PacWest Bancorp (Ex

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 17, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

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 10, 2023 PacWest Bancorp (Ex

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 10, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

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Exhibit 99.1 March 10, 2023 PACWEST BANCORP ISSUES UPDATED FINANCIAL FIGURES; REITERATES CAPITAL AND LIQUIDITY STRATEGY AND FINANCIAL POSITION IN LIGHT OF INDUSTRY DEVELOPMENTS FOR IMMEDIATE RELEASE Los Angeles, California - PacWest Bancorp (Nasdaq: PACW) (the “Company”), a bank holding company with $41 billion in assets, in light of recent industry events, updates the following financial (unaudit

PacWest Bancorp Employee Severance Plan, dated February 12, 2020 (Filed herewith).

Exhibit 10.11 PACWEST BANCORP PACWEST BANCORP EMPLOYEE SEVERANCE PLAN EFFECTIVE FEBRUARY 12, 2020 ARTICLE 1 NAME, PURPOSE AND EFFECTIVE DATE OF PLAN 1.1 Name and Purpose of Plan. The Plan shall be known as the PacWest Bancorp Employee Severance Plan (the “Plan”). The purpose of this Plan is to provide severance benefits to employees of the Company who experience an Employment Loss on or after the

Description of Registered Securities (

Exhibit 4.4 DESCRIPTION OF REGISTERED SECURITIES As of December 31, 2022, PacWest Bancorp (“PacWest”) had two classes of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: •Common Stock, par value $0.01 per share; and •Depositary Shares, each representing a 1/40th interest in a share of 7.75% fixed rate reset non-cumulative perpetual preferred stock, Series

Form of Stock Award Agreement and Grant Notice pursuant to the Company's Amended and Restated PacWest Bancorp 2017 Stock Incentive Plan (Filed herewith).

Exhibit 10.7 PACWEST BANCORP STOCK INCENTIVE PLAN NOTICE OF STOCK AWARD GRANT This Notice of Stock Award Grant is part of the Stock Award Agreement between Grantee and the Company dated and is of no force and effect until the Stock Award Agreement is signed by Grantee and the Company's representative and this Notice of Stock Award Grant is signed by Grantee. You have been granted the following Sto

Form of Stock Unit Award Agreement and Grant Notice pursuant to the Company's Amended and Restated PacWest Bancorp 2017 Stock Incentive Plan (Filed herewith).

Exhibit 10.6 PACWEST BANCORP STOCK INCENTIVE PLAN STOCK UNIT AWARD AGREEMENT [] 1. Definitions. Unless otherwise defined herein, the terms defined in the Amended and Restated PacWest Bancorp 2017 Stock Incentive Plan (the “Plan”) shall have the same defined meanings in this Stock Unit Award Agreement (“Agreement”) and the Notice of Stock Unit Award Grant attached hereto as Appendix A. 2. Grant of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE AC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its c

Exhibit 3.2 to Form 10-K filed on February 28, 2022 and incorporated herein by this reference

EXHIBIT 3.2 SECOND AMENDED AND RESTATED BYLAWS OF PACWEST BANCORP October 25, 2019 ARTICLE I Stockholders Section 1.1. Annual Meetings. An annual meeting of stockholders shall be held for the election of directors at such date, time and place either within or without the State of Delaware as may be designated by the Board of Directors from time to time. Any other proper business may be transacted

Subsidiaries of the Registrant (Filed herewith)

Exhibit 21.1 Page 1 of 3 PACWEST BANCORP LIST OF SUBSIDIARIES December 31, 2022 Subsidiaries of PacWest Bancorp: State: Pacific Western Bank California 10700 West Jefferson Avenue SBL LLC Delaware 1323 Burnet Avenue SBL LLC Delaware 1335 Darby Street SBL LLC Delaware 1602 East Central Boulevard SBL LLC Delaware 1602 Medical Parkway SBL LLC Delaware 2030 Main Street SBL LLC Delaware 2499 Futura Par

Certificate of Incorporation of PacWest Bancorp, as amended as of June 5, 2014 (

EXHIBIT 3.1 Amended to and including Amendments of June 5, 2014 CERTIFICATE OF INCORPORATION OF PACWEST BANCORP (Original Certificate Filed on March 24, 2008) FIRST. The name of the corporation is PacWest Bancorp. SECOND. The address of the corporation’s registered office in the State of Delaware is Corporation Trust Center, 1209 Orange in the City of Wilmington, County of New Castle, Delaware 198

Executive Incentive Plan

Exhibit 10.8 2023 EXECUTIVE INCENTIVE PLAN 97963v7 Table of Contents 1. Purpose 3 2. Approval and Administration 3 3. Performance Guidelines 3 4. Interpretation 4 5. Eligibility 4 6. Performance Measures; Performance Targets 4 7. Achievement Levels and Awards 5 8. Adjustments 5 9. Payment of Awards 6 10. No Right of Assignment 6 11. No Right of Employment 6 12. Amendment or Termination of the Plan

Regulation FD Disclosure, 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) February 17, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

PACW / PacWest Bancorp / 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.: 11)* Name of issuer: PacWest Bancorp Title of Class of Securities: Common Stock CUSIP Number: 695263103 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 is filed: ☒ Ru

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Exhibit 99.1 January 26, 2023 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2022 FOR IMMEDIATE RELEASE FOURTH QUARTER 2022 RESULTS $39.6M $0.33 14.39% 8.70% Net Earnings Available to Common Stockholders Diluted Earnings per Common Share ROATCE CET1 FOURTH QUARTER 2022 HIGHLIGHTS · Announced leadership transition with Paul Taylor as President and CEO and Kevin Thompson as C

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) January 26, 2023 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

THE EVOLUTION OF PACWEST Investor Presentation January 26, 2023

Exhibit 99.2 THE EVOLUTION OF PACWEST Investor Presentation January 26, 2023 Fourth Quarter 2022 | PACW | p. 2 PacWest Bancorp Overview Corporate overview Headquarters Los Angeles, CA Exchange/Listing NASDAQ: PACW Market capitalization $2.76B (1) Dividend yield 4.36% (2) Branch network 71 branches Financial highlights BALANCE SHEET CAPITAL Assets $ 41.2B Total RB (3) 13.61% Loans HFI $ 28.6B CET1

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) November 21, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

PACWEST BANCORP ANNOUNCES LEADERSHIP TRANSITIONS Paul W. Taylor, Current PacWest Bancorp President, Appointed Chief Executive Officer Matthew P. Wagner to Transition to Executive Chairman Kevin L. Thompson Named EVP, Chief Financial Officer

Exhibit 99.1 PACWEST BANCORP ANNOUNCES LEADERSHIP TRANSITIONS Paul W. Taylor, Current PacWest Bancorp President, Appointed Chief Executive Officer Matthew P. Wagner to Transition to Executive Chairman Kevin L. Thompson Named EVP, Chief Financial Officer LOS ANGELES, November 21, 2022 ? PacWest Bancorp (Nasdaq: PACW) (the ?Company?) and Pacific Western Bank (the ?Bank?), as part of their previously

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified

Third Quarter 2022 Results Earnings Release Presentation October 19, 2022

Exhibit 99.2 Third Quarter 2022 Results Earnings Release Presentation October 19, 2022 Third Quarter 2022 | PACW | p. 2 Key Third Quarter Takeaways ? Regulatory capital ratios increased with CET1 increasing from 8.24% at 2Q22 to 8.55% ? Total deposits grew $228 million; Venture Banking deposits stabilized and grew $129 million to $12.2 billion ? Credit quality remains strong; nonperforming assets

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) October 19, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

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Exhibit 99.1 October 19, 2022 PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER 2022 FOR IMMEDIATE RELEASE THIRD QUARTER 2022 RESULTS $122.2M $1.02 24.11% 8.55% Net Earnings Available to Common Stockholders Diluted Earnings per Common Share ROATCE CET1 THIRD QUARTER 2022 HIGHLIGHTS ? All Regulatory Capital Ratios Increased from 2Q22, With CET1 Increasing from 8.24% to 8.55% ? Total Deposits

Other Events

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 29, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation)

Investor Presentation September 2022

Exhibit 99.1 Investor Presentation September 2022 Investor Presentation Sept. 2022 | PACW | p. 2 Key Takeaways First Half of 2022 ? Exceptional loan growth of 15.5% in the first 6 months led to: ? 19.9% Net interest income growth ? $10M higher loan loss provision ? Higher bonus and loan related expenses ? Upsizing our preferred capital raise ? Total deposits increased by $743.3 million ? Increased

Regulation FD Disclosure, 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 19, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in i

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, 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) August 3, 2022 ( August 1, 2022) PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer I

Second Quarter 2022 Results Earnings Release Presentation July 20, 2022

Exhibit 99.2 Second Quarter 2022 Results Earnings Release Presentation July 20, 2022 Second Quarter 2022 | PACW | p. 2 Key Second Quarter Takeaways ? We are focused on optimizing the balance sheet and rebuilding our capital ratios ? 2Q had exceptional loan growth which had four material impacts on 2Q22: ? drove $15mm of net interest income growth vs. 1Q22 ? led to the first loan loss provision sin

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) July 20, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

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Exhibit 99.1 July 20, 2022 PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER 2022 FOR IMMEDIATE RELEASE SECOND QUARTER 2022 RESULTS SECOND QUARTER 2022 HIGHLIGHTS ? Net Earnings of $122.4 Million or $1.02 Per Diluted Share ? Net Interest Income (TE) of $327.8 Million in 2Q22 vs. $312.7 Million in 1Q22; Up 4.8% ? Provision for Credit Losses of $11.5 Million in 2Q22, of Which $1.5 Million Rel

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .. Commission File No. 001-36408 A. FULL TITLE OF THE PLAN AND THE ADDRESS OF THE PLAN,

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) June 13, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

Paul W. TAYLOR NAMED President of PacWest Bancorp and Pacific Western Bank

Exhibit 99.1 June 13, 2022 Paul W. TAYLOR NAMED President of PacWest Bancorp and Pacific Western Bank FOR IMMEDIATE RELEASE Los Angeles, California - PacWest Bancorp (Nasdaq: PACW) (the ?Company?) and Pacific Western Bank (the ?Bank?) announced today the appointment of Paul W. Taylor as President of both the Company and the Bank effective July 1, 2022. Mr. Taylor currently serves as a Director of

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Other Events

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) June 6, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 33-0885320 (State of incorporation or organization) (I.R.S. Employer Identification No.) 9701 Wilshire Blvd., Suite 7

Certificate of Designation for the 7.75% fixed rate reset non-cumulative perpetual preferred stock, Series A, effective June 3, 2022

Exhibit 3.1 CERTIFICATE OF DESIGNATION OF FIXED RATE RESET NON-CUMULATIVE PERPETUAL PREFERRED STOCK, SERIES A OF PACWEST BANCORP PacWest Bancorp, a corporation organized and existing under the laws of the State of Delaware (the ?corporation?), in accordance with the provisions of Section 151 of the Delaware General Corporation Law, does hereby certify: The board of directors of the corporation (th

Deposit Agreement, dated June 6, 2022, among the Registrant, Equiniti Trust Company, acting as depositary, and the holders from time to time of the depositary receipts described therein (incorporated herein by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K filed on June 6, 2022).

Exhibit 4.1 DEPOSIT AGREEMENT by and among PACWEST BANCORP As Issuer and EQUINITI TRUST COMPANY As Depositary and THE HOLDERS FROM TIME TO TIME OF THE DEPOSITARY RECEIPTS DESCRIBED HEREIN Dated June 6, 2022 DEPOSIT AGREEMENT DEPOSIT AGREEMENT, dated June 6, 2022, by and among (i) PacWest Bancorp, a Delaware corporation; (ii) Equiniti Trust Company, a limited trust company organized under the laws

20,000,000 Depositary Shares Each Representing a 1/40th Interest in a Share of 7.75% Fixed Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(5) ?Registration No. 333-253712? PROSPECTUS SUPPLEMENT (To Prospectus dated March 1, 2021) ? 20,000,000 Depositary Shares Each Representing a 1/40th Interest in a Share of 7.75% Fixed Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A ? We are offering 20,000,000 of our depositary shares, or the depositary shares, each representing a 1/40

Calculation of Filing Fee Tables FORM S-3 (Form Type) PacWest Bancorp (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

EX-FILING FEES 2 tm228951d3ex-filingfees.htm EX-FILING FEES EX-FILING FEES Calculation of Filing Fee Tables FORM S-3 (Form Type) PacWest Bancorp (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggre

20,000,000 Depositary Shares, Each Representing a 1/40th Interest in a Share of 7.75% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A (liquidation preference $1,000 per share (equivalent to $25 per Depositary Share)) Pricing Term

Issuer Free Writing Prospectus June 1, 2022 Filed pursuant to Rule 433 Registration No.

Underwriting Agreement, dated June 1, 2022, by and among PacWest Bancorp and Piper Sandler & Co., J.P. Morgan Securities LLC, and Janney Montgomery Scott LLC

Exhibit 1.1 20,000,000 Depositary Shares Each Representing a 1/40th Interest in a Share of 7.75% Fixed Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A PacWest BANCORP UNDERWRITING AGREEMENT June 1, 2022 PIPER SANDLER & CO. 1251 Avenue of the Americas New York, New York 10020 J.P. MORGAN SECURITIES LLC 383 Madison Avenue New York, New York 10179 JANNEY MONTGOMERY SCOTT LLC 1475 Peacht

Entry into a Material Definitive Agreement, 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) June 2, 2022 (June 1, 2022) PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorp

SUBJECT TO COMPLETION DATED MaY 31, 2022

TABLE OF CONTENTS The information contained in this preliminary prospectus supplement is not complete and may be changed.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

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) May 13, 2022 (May 10, 2022) PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorp

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in

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Exhibit 99.1 April 19, 2022 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER 2022 FOR IMMEDIATE RELEASE FIRST QUARTER 2022 RESULTS $120.1M $1.01 $162.1M 20.93% Net Earnings Diluted Earnings per Share PPNR ROATE FIRST QUARTER 2022 HIGHLIGHTS ? Net Earnings of $120.1 Million or $1.01 Per Diluted Share ? PPNR of $162.1 Million, Down 10.8% vs. 4Q21 ? Net Interest Income (TE) of $312.7 Million i

First Quarter 2022 Results Earnings Release Presentation April 19, 2022

Exhibit 99.2 First Quarter 2022 Results Earnings Release Presentation April 19, 2022 First Quarter 2022 | PACW | p. 2 ? Solid earnings ? net earnings of $120.1 million; net interest income up $8.3 million or 2.8% compared to 4Q21; PPNR of $162.1 million ? Strong loan growth ? loans up $1.4 billion or 6.1% compared to 4Q21 ? Civic momentum continues ? originated $559 million compared to $480 millio

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) April 19, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 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 of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

the portions of our Definitive Proxy Statement on Schedule 14A filed with the SEC on March 30, 2022 incorporated by reference in the Annual Report on Form 10-K for the year ended December 31, 2021; and

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 ? ? Confidential, for Use of the Commission Only (as permitted by Rule

Certificate of Incorporation of PacWest Bancorp, as amended as of June 5, 2014 (Filed herewith).

EXHIBIT 3.1 Amended to and including Amendments of June 5, 2014 CERTIFICATE OF INCORPORATION OF PACWEST BANCORP (Original Certificate Filed on March 24, 2008) FIRST. The name of the corporation is PacWest Bancorp. SECOND. The address of the corporation?s registered office in the State of Delaware is Corporation Trust Center, 1209 Orange in the City of Wilmington, County of New Castle, Delaware 198

Second Amended and Restated Bylaws of PacWest Bancorp, dated October 25, 2019 (Filed herewith).

EXHIBIT 3.2 SECOND AMENDED AND RESTATED BYLAWS OF PACWEST BANCORP October 25, 2019 ARTICLE I Stockholders Section 1.1. Annual Meetings. An annual meeting of stockholders shall be held for the election of directors at such date, time and place either within or without the State of Delaware as may be designated by the Board of Directors from time to time. Any other proper business may be transacted

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE AC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its c

Subsidiaries of the Registrant (Filed herewith)

Exhibit 21.1 Page 1 of 3 PACWEST BANCORP LIST OF SUBSIDIARIES December 31, 2021 Subsidiaries of PacWest Bancorp: State: Pacific Western Bank California 10700 West Jefferson Avenue SBL LLC Delaware 12148 Sky Lane SBL LLC Delaware 1320 West 97th Street CRE LLC Delaware 1323 Burnet Avenue SBL LLC Delaware 1335 Darby Street SBL LLC Delaware 1602 East Central Boulevard SBL LLC Delaware 1602 Medical Par

Financial Statements and Exhibits, Other Events

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) February 15, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

Regulation FD Disclosure, 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) February 14, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

Fourth Quarter and Full Year 2021 Results Investor Presentation February 14, 2022

Exhibit 99.1 Fourth Quarter and Full Year 2021 Results Investor Presentation February 14, 2022 Fourth Quarter 2021 | PACW | p. 2 ? Strong earnings ? net earnings of $136.0 million; net interest income up $24.6 million or 8.9% compared to 3Q21; PPNR of $181.7 million, up 8.3% or $13.9 million compared to 3Q21 ? Deposit growth continues ? core deposits up 16.3% or $4.6 billion compared to 3Q21 ? Str

PACW / PacWest Bancorp / 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.: 10)* Name of issuer: PacWest Bancorp Title of Class of Securities: Common Stock CUSIP Number: 695263103 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 is filed: ??Ru

Fourth Quarter and Full Year 2021 Results Earnings Release Presentation January 19, 2022

Exhibit 99.2 Fourth Quarter and Full Year 2021 Results Earnings Release Presentation January 19, 2022 Fourth Quarter 2021 | PACW | p. 2 ? Strong earnings ? net earnings of $136.0 million; net interest income up $24.6 million or 8.9% compared to 3Q21; PPNR of $181.7 million, up 8.3% or $13.9 million compared to 3Q21 ? Deposit growth continues ? core deposits up 16.3% or $4.6 billion compared to 3Q2

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) January 19, 2022 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2021

Exhibit 99.1 January 19, 2022 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2021 FOR IMMEDIATE RELEASE FOURTH QUARTER 2021 RESULTS $136.0M $1.14 $181.7M 22.06% Net Earnings Diluted Earnings per Share PPNR ROATE FOURTH QUARTER 2021 HIGHLIGHTS ? Net Earnings of $136.0 Million or $1.14 Per Diluted Share ? Core Deposits Up $4.6 Billion or 16.3% of which $4.1 Billion Related to

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) October 18, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

2021 Third Quarter Results Earnings Release Presentation October 18, 2021

Exhibit 99.2 2021 Third Quarter Results Earnings Release Presentation October 18, 2021 Third Quarter 2021 | PACW | p. 2 ? Strong earnings ? net earnings of $140.0 million; net interest income up $9.5 million or 3.6% compared to 2Q21; PPNR of $167.8 million, up 8.3% or $12.8 million compared to 2Q21 ? Deposit growth continues ? core deposits up 4.1% compared to 2Q21 or $1.1 billion ? Strong loan gr

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Exhibit 99.1 October 18, 2021 PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER OF 2021 FOR IMMEDIATE RELEASE THIRD QUARTER 2021 RESULTS $140.0M $1.17 $167.8M 21.03% Net Earnings Diluted Earnings per Share PPNR ROATE THIRD QUARTER 2021 HIGHLIGHTS ? Net Earnings of $140.0 Million or $1.17 Per Diluted Share ? Core Deposits Up $1.1 Billion or 4.1% in 3Q21; Represents 92% of Total Deposits ? Loa

PACIFIC WESTERN BANK ANNOUNCES CLOSE OF ACQUISITION OF HOMEOWNERS

Exhibit 99.1 October 12, 2021 PACIFIC WESTERN BANK ANNOUNCES CLOSE OF ACQUISITION OF HOMEOWNERS ASSOCIATION Services Division FROM MUFG UNION BANK, N.A. FOR IMMEDIATE RELEASE LOS ANGELES, CALIFORNIA PacWest Bancorp (Nasdaq: PACW) (?PacWest?) announced today that its wholly-owned banking subsidiary, Pacific Western Bank (the ?Bank?), completed the acquisition of MUFG Union Bank, N.A.?s (?Union Bank

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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) October 8, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ide

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in i

Form of Stock Award Agreement and Grant Notice pursuant to the Company's Amended and Restated 2017 Stock Incentive Plan (Exhibit 10.10 to Form 10-Q filed on August 6, 2021 and incorporated herein by this reference)

PACWEST BANCORP STOCK INCENTIVE PLAN NOTICE OF STOCK AWARD GRANT This Notice of Stock Award Grant is part of the Stock Award Agreement between Grantee and the Company dated and is of no force and effect until the Stock Award Agreement is signed by Grantee and the Company's representative, this Notice of Stock Award Grant is signed by Grantee.

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, 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) August 3, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) July 19, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

2021 Second Quarter Results Earnings Release Presentation July 19, 2021

Exhibit 99.2 2021 Second Quarter Results Earnings Release Presentation July 19, 2021 Second Quarter 2021 | PACW | p. 2 Second Quarter Highlights ? CET1 ratio of 10.41% ? Total capital ratio of 14.99% ? ACL ratio of 1.54%; 1.59% excluding PPP loans ? Classified loans to total loans of 0.75% ? Net recoveries of $5.2 million ? Net recoveries to average loans and leases of 11bps ? Classified loans of

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Exhibit 99.1 July 19, 2021 PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER OF 2021 FOR IMMEDIATE RELEASE SECOND QUARTER 2021 RESULTS $180.5M $1.52 $154.9M 29.25% Net Earnings Diluted Earnings per Share PPNR ROATE SECOND QUARTER 2021 HIGHLIGHTS ? Net Earnings of $180.5 Million or $1.52 Per Diluted Share ? Core Deposits Up $1.5 Billion or 22.9% annualized in 2Q21; Represents 91% of Total De

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .. Commission File No. 001-36408 A. FULL TITLE OF THE PLAN AND THE ADDRESS OF THE PLAN,

As filed with the Securities and Exchange Commission on May 12, 2021

As filed with the Securities and Exchange Commission on May 12, 2021 Registration No.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

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) May 11, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identi

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in

Regulation FD Disclosure

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) April 23, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

Pacific Western Bank Fixed Income Investor Presentation April 23, 2021

Exhibit 99.1 Pacific Western Bank Fixed Income Investor Presentation April 23, 2021 Fixed Income Investor Presentation | Pacific Western Bank | p. 2 Disclaimer Forward Looking Statements This presentation contains certain forward - looking information about PacWest Bancorp (the ?Company?) and Pacific Western Bank (t he ?Bank?) that is intended to be covered by the safe harbor for forward - looking

Other Events

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) April 22, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

Earnings Release Presentation

Exhibit 99.2 2021FirstQuarter Results Earnings Release Presentation April 20, 2021 Forward-Looking Statements This communication contains certain forward-looking information about PacWest Bancorp that is intended to be covered by the safe harbor for ?forward-looking statements? provided by the Private Securities Litigation Reform Act of 1995. Statements that are not historical or current facts, in

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Exhibit 99.1 April 20, 2021 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER OF 2021 FOR IMMEDIATE RELEASE FIRST QUARTER 2021 RESULTS FIRST QUARTER 2021 HIGHLIGHTS ? Net Earnings of $150.4 Million or $1.27 Per Diluted Share ? Core Deposits Up $3.3 Billion or 15% in 1Q21; Represents 91% of Total Deposits ? Provision for Credit Losses Benefit of $48.0 Million in 1Q21 Compared to Provision of

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) April 20, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

Acquisition of Homeowners’ Association (HOA) Business Investor Presentation April 1, 2021

Exhibit 99.2 Acquisition of Homeowners? Association (HOA) Business Investor Presentation April 1, 2021 FORWARD LOOKING STATEMENTS This communication contains certain forward - looking information that is intended to be covered by the safe harbor for forward - looking statements provided by the Private Securities Litigation Reform Act of 1995 about PacWest Bancorp, including its whol ly - owned sub

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Exhibit 99.1 April 1, 2021 PACIFIC WESTERN BANK ANNOUNCES AGREEMENT TO ACQUIRE HOMEOWNERS ASSOCIATION Services Division FROM MUFG UNION BANK, N.A. FOR IMMEDIATE RELEASE LOS ANGELES, CALIFORNIA PacWest Bancorp (Nasdaq: PACW) (?PacWest?) announced today that its wholly-owned banking subsidiary, Pacific Western Bank (the ?Bank?), has entered into a definitive agreement to acquire MUFG Union Bank, N.A

Regulation FD Disclosure, Entry into a Material Definitive Agreement, 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) March 31, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

Purchase and Assumption Agreement, dated March 31, 2021, between Pacific Western Bank and MUFG Union Bank, N.A. (Exhibit 2.1 to Form 8-K filed on April 1, 2021 and incorporated herein by this reference).*

Exhibit 2.1 PURCHASE AND ASSUMPTION AGREEMENT between MUFG Union Bank, N.A., as Seller, and PACIFIC WESTERN BANK, as Purchaser March 31, 2021 TABLE OF CONTENTS Article I DEFINITIONS; CONSTRUCTION 1 Section 1.1 Definitions 1 Section 1.2 Interpretation 14 Article II TRANSFER OF THE BUSINESS 14 Section 2.1 Purchase and Sale of Purchased Assets 14 Section 2.2 Assumption of Liabilities 15 Section 2.3 S

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

Amended and Restated PacWest Bancorp 2017 Stock Incentive Plan (Appendix A to the Company's Definitive Proxy Statement filed on March 26, 2021 and incorporated herein by this reference).

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 ? ? Confidential, for Use of the Commission Only (as permitte

Form of Subordinated Debt Indenture.

Exhibit 4.5 PACWEST BANCORP To [?] Trustee INDENTURE Dated as of [?], SUBORDINATED DEBT SECURITIES Certain Sections of this Indenture relating to Sections 3.10 through 3.18, inclusive, of the Trust Indenture Act of 1939: Trust Indenture Act Section Indenture Section Section 3.10 (a)(1) 6.09 (a)(2) 6.09 (a)(3) Not Applicable (a)(4) Not Applicable (b) 6.08 6.10 Section 3.11 (a) 6.13 (b) 6.13 Section

Form S-3ASR (File No. 333-253712)

TABLE OF CONTENTS ? ? UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Form of Senior Debt Indenture.

Exhibit 4.4 PACWEST BANCORP To [?] Trustee INDENTURE Dated as of [?], SENIOR DEBT SECURITIES Certain Sections of this Indenture relating to Sections 3.10 through 3.18, inclusive, of the Trust Indenture Act of 1939: Trust Indenture Act Section Indenture Section Section 3.10 (a)(1) 6.09 (a)(2) 6.09 (a)(3) Not Applicable (a)(4) Not Applicable (b) 6.08 6.10 Section 3.11 (a) 6.13 (b) 6.13 Section 3.12

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its c

Subsidiaries of the Registrant (Filed herewith)

Exhibit 21.1 Page 1 of 3 PACWEST BANCORP LIST OF SUBSIDIARIES December 31, 2020 Subsidiaries of PacWest Bancorp: State: Pacific Western Bank California 10700 West Jefferson Avenue SBL LLC Delaware 1080 Roewill Drive CRE LLC Delaware 12148 Sky Lane SBL LLC Delaware 1238 Green Lane CRE LLC Delaware 1320 West 97th Street CRE LLC Delaware 1323 Burnet Avenue SBL LLC Delaware 1335 Darby Street SBL LLC D

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: PacWest Bancorp Title of Class of Securities: Common Stock CUSIP Number: 695263103 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 is filed: ☒ Rul

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - FORM 8-K

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) January 29, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

2020 Fourth Quarter Results Earnings Release Presentation January 20, 2021

Exhibit 99.2 2020 Fourth Quarter Results Earnings Release Presentation January 20, 2021 Fourth Quarter 2020 | PACW | p. 2 This communication contains certain forward - looking information about PacWest Bancorp that is intended to be covered by the safe harbor for “forward - looking statements” provided by the Private Securities Litigation Reform Act of 1995. Statements that are not historical or c

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

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) January 20, 2021 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2020

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Bart R. Olson President and CEO Executive Vice President and CFO Phone: 303-802-8900 714-989-4149 Contact: William J. Black Executive Vice President Strategy and Corporate Development Phone: 919-597-7466 FOR IMMEDIATE RELEASE January 20, 2021 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified

2020 Third Quarter Results Earnings Release Presentation October 14, 2020

Exhibit 99.2 2020 Third Quarter Results Earnings Release Presentation October 14, 2020 Third Quarter 2020 | PACW | p. 2 This communication contains certain forward - looking information about PacWest Bancorp that is intended to be covered by the safe harbor for “forward - looking statements” provided by the Private Securities Litigation Reform Act of 1995. Statements that are not historical or cur

PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER 2020

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 303-802-8900 714-989-4705 Contact: William J. Black Executive Vice President Strategy and Corporate Development Phone: 919-597-7466 FOR IMMEDIATE RELEASE October 14, 2020 PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER 2020 Signifi

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

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) October 14, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in i

PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER 2020

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 303-802-8900 714-989-4705 Contact: William Black Executive Vice President Strategy and Corporate Development Phone: 919-597-7466 FOR IMMEDIATE RELEASE July 16, 2020 PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER 2020 Significant

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

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) July 16, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

2020 Second Quarter Results Earnings Release Presentation July 16, 2020

Exhibit 99.2 2020 Second Quarter Results Earnings Release Presentation July 16, 2020 Second Quarter 2020 | PACW | p. 2 This communication contains certain forward - looking information about PacWest Bancorp that is intended to be covered by the safe harbor for “forward - looking statements” provided by the Private Securities Litigation Reform Act of 1995. Statements that are not historical or curr

- FORM 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .. Commission File No. 001-36408 A. FULL TITLE OF THE PLAN AND THE ADDRESS OF THE PLAN,

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, 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) June 22, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

Submission of Matters to a Vote of Security Holders

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) May 12, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identi

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

2020 First Quarter Results Earnings Release Presentation April 21, 2020

Exhibit 99.2 2020 First Quarter Results Earnings Release Presentation April 21, 2020 First Quarter 2020 | PACW | p. 2 This communication contains certain forward - looking information about PacWest Bancorp that is intended to be covered by the safe harbor for “forward - looking statements” provided by the Private Securities Litigation Reform Act of 1995. Statements that are not historical or curre

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

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) April 21, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER 2020

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 310-887-8520 714-989-4705 FOR IMMEDIATE RELEASE April 21, 2020 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER 2020 Significant Items • Net Loss of $1.43 Billion, or a Loss of $12.23 Per Diluted Share • Recorded Goodwill Impairment

PACW / PacWest Bancorp DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

PACW / PacWest Bancorp DEF 14A - - DEF 14A

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

Regulation FD Disclosure, 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) March 16, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

PacWest Bancorp Investor Presentation Update March 16, 2020

Exhibit 99.1 PacWest Bancorp Investor Presentation Update March 16, 2020 March 2020 | PACW | p. 2 In light of the recent classification by the World Health Organization (WHO) of the Coronavirus Disease (COVID - 19) as a pandemic and the recent decline in oil prices, we are providing additional information about our credit portfolio in addition to our regular investor presentation previously issued

Indemnification Agreement applicable to the directors and executive officers of the Company (Exhibit 10.10 to Form 10-K filed on February 28, 2020 and incorporated herein by this reference).

Exhibit 10.10 INDEMNIFICATION AGREEMENT This INDEMNIFICATION AGREEMENT is made this day of , 20[●] (the “Agreement”), by and between PacWest Bancorp (the “Company”) and (“Indemnitee”). WHEREAS, Indemnitee is a director or officer of the Company serving at the request of the Company as a director or officer of the Company or in another Position (as defined below) at an Affiliated Entity (as defined

Subsidiaries of the Registrant (Filed herewith).

Exhibit 21.1 Page 1 of 3 PACWEST BANCORP LIST OF SUBSIDIARIES December 31, 2019 Subsidiaries of PacWest Bancorp: State: Pacific Western Bank California 10700 West Jefferson Avenue SBL LLC Delaware 10790 Civic Center Drive CRE LLC Delaware 1127 East Gore Boulevard LLC Delaware 12148 Sky Lane SBL LLC Delaware 1238 Green Lane CRE LLC Delaware 1246 East Turin Avenue CRE LLC Delaware 1602 East Central

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its c

Description of Registered Securities (Exhibit 4.2 to Form 10-K filed on February 28, 2020 and incorporated herein by this reference).

Exhibit 4.2 DESCRIPTION OF REGISTERED SECURITIES As of December 31, 2019, PacWest Bancorp (“PacWest”) had only one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended: its common stock, par value $0.01 per share. The following summary description of the common stock of PacWest does not purport to be complete and is qualified in its entirety by referen

PacWest Bancorp Change in Control Severance Plan, dated February 12, 2020 (Exhibit 10.1 to Form 8-K filed on February 14, 2020 and incorporated herein by this reference).

Exhibit 10.1 PACWEST BANCORP CHANGE IN CONTROL Severance PLAN Article 1 NAME, PURPOSE, ELIGIBILITY AND EFFECTIVE DATE 1.1 Name and Purpose of Plan. The purpose of this PacWest Bancorp Change in Control Severance Plan (this “Plan”) is to secure the continued services of certain senior executives and key employees of the Company and to ensure their continued dedication to their duties in the event o

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

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) February 12, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

PACW / PacWest Bancorp / 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.: 8)* Name of issuer: PacWest Bancorp Title of Class of Securities: Common Stock CUSIP Number: 695263103 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 filed: ☒ Rul

2019 Fourth Quarter Results Investor Presentation

Exhibit 99.1 2019 Fourth Quarter Results Investor Presentation Fourth Quarter 2019 | PACW | p. 2 This communication contains certain forward - looking information about PacWest, including the expected impact to the Company’s allowance for credit losses upon the adoption of the new current expected credit loss (CECL) accounting standard and the expected impact to the Company’s multi - family lendin

Regulation FD Disclosure, 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) January 29, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

2019 Fourth Quarter Results Earnings Release Presentation January 21, 2020

Exhibit 99.2 2019 Fourth Quarter Results Earnings Release Presentation January 21, 2020 Fourth Quarter 2019 | PACW | p. 2 This communication contains certain forward - looking information about PacWest that is intended to be covered by the safe harbor for “forward - looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and op

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) January 21, 2020 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2019

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 310-887-8520 714-989-4705 FOR IMMEDIATE RELEASE January 21, 2020 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2019 Fourth Quarter 2019 Highlights • Net Earnings of $117.9 Million, or $0.98 Per Diluted Share • Loan

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its charter) Delaware 33-0885320 (State of Incorporation) (I.R.S. Employer Identification No

2019 Third Quarter Results Investor Presentation

Exhibit 99.1 2019 Third Quarter Results Investor Presentation Third Quarter 2019 | PACW | p. 2 This communication contains certain forward - looking information about PacWest, including the expected impact to the Company’s allowance for credit losses upon the adoption of the new current expected credit loss (CECL) accounting standard and the expected impact to the Company’s multi - family lending

Regulation FD Disclosure, 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) November 6, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

Second Amended and Restated Bylaws of PacWest Bancorp, a Delaware Corporation, dated October 25, 2019 (Exhibit 3.5 to Form 8-K filed on October 29, 2019 and incorporated herein by this reference).

Exhibit 3.5 SECOND AMENDED AND RESTATED BYLAWS OF PACWEST BANCORP November 5, 2014 October 25, 2019 ARTICLE I Stockholders Section 1.1. Annual Meetings. An annual meeting of stockholders shall be held for the election of directors at such date, time and place either within or without the State of Delaware as may be designated by the Board of Directors from time to time. Any other proper business m

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

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) October 25, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) October 16, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

2019 Third Quarter Results Earnings Release Presentation October 16, 2019

Exhibit 99.2 2019 Third Quarter Results Earnings Release Presentation October 16, 2019 Third Quarter 2019 | PACW | p. 2 This communication contains certain forward - looking information about PacWest that is intended to be covered by the safe harbor for “forward - looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and oper

PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER 2019

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 310-887-8520 714-989-4705 FOR IMMEDIATE RELEASE October 16, 2019 PACWEST BANCORP ANNOUNCES RESULTS FOR THE THIRD QUARTER 2019 Highlights · Net Earnings of $110.0 Million, or $0.92 Per Diluted Share · Loan and Lease Production of $1.2 Billi

PACW / PacWest Bancorp / 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: PacWest Bancorp Title of Class of Securities: Common Stock CUSIP Number: 695263103 Date of Event Which Requires Filing of this Statement: August 30, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its charter) Delaware 33-0885320 (State of Incorporation) (I.R.S. Employer Identification No.) 97

Form of Stock Unit Award Agreement and Grant Notice pursuant to the Company's 2017 Stock Incentive Plan, as amended (Exhibit 10.7 to Form 10-Q filed on August 8, 2019 and incorporated herein by this reference).

PACWEST BANCORP STOCK INCENTIVE PLAN STOCK UNIT AWARD AGREEMENT [insert date] 1. Definitions. Unless otherwise defined herein, the terms defined in the PacWest Bancorp 2017 Stock Incentive Plan, as amended (the “Plan”) shall have the same defined meanings in this Stock Unit Award Agreement (“Agreement”) and the Notice of Stock Unit Award Grant attached hereto as Appendix A. 2. Grant of Stock Unit

Form of Stock Award Agreement and Grant Notice pursuant to the Company's 2017 Stock Incentive Plan, as amended (Exhibit 10.8 for Form 10-Q filed on August 8, 2019 and incorporated herein by this reference).

PACWEST BANCORP STOCK INCENTIVE PLAN STOCK AWARD AGREEMENT [insert date] 1. Definitions. Unless otherwise defined herein, the terms defined in the PacWest Bancorp 2017 Stock Incentive Plan, as amended (the “Plan”) shall have the same defined meanings in this Stock Award Agreement (“Agreement”) and the Notice of Stock Award Grant attached hereto as Appendix A. 2. Grant of Stock Award. Pursuant to t

2019 Second Quarter Results Investor Presentation

Exhibit 99.1 2019 Second Quarter Results Investor Presentation This communication contains certain forward-looking information about PacWest that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions and other statements

Regulation FD Disclosure, 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) August 6, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

2019 Second Quarter Results Earnings Release Presentation July 16, 2019

Exhibit 99.2 2019 Second Quarter Results Earnings Release Presentation July 16, 2019 This communication contains certain forward-looking information about PacWest that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions

PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER 2019

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 310-887-8520 714-989-4705 FOR IMMEDIATE RELEASE July 16, 2019 PACWEST BANCORP ANNOUNCES RESULTS FOR THE SECOND QUARTER 2019 Highlights · Net Earnings of $128.1 Million, or $1.07 Per Diluted Share; Up 16% from Prior Quarter · Tax Equivalent

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) July 16, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Ident

PACW / PacWest Bancorp 11-K - - 11-K

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File No. 001-36408 A. FULL TITLE OF THE PLAN AND THE ADDR

Submission of Matters to a Vote of Security Holders

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) May 13, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Identi

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its charter) Delaware 33-0885320 (State of Incorporation) (I.R.S. Employer Identification No.) 9

Regulation FD Disclosure, 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) April 29, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

2019 First Quarter Results Investor Presentation

Exhibit 99.1 2019 First Quarter Results Investor Presentation This communication contains certain forward-looking information about PacWest that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions and other statements t

PACW / PacWest Bancorp DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A 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 of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

PACWEST BANCORP ANNOUNCES APPOINTMENT OF MARK T. YUNG AS EXECUTIVE VICE PRESIDENT & CHIEF OPERATING OFFICER

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner President and CEO Phone: 310-887-8520 FOR IMMEDIATE RELEASE April 24, 2019 PACWEST BANCORP ANNOUNCES APPOINTMENT OF MARK T. YUNG AS EXECUTIVE VICE PRESIDENT & CHIEF OPERATING OFFICER Los Angeles, California . . . PacWest Bancorp (Nasdaq: PACW) today announced that on April 12, 2019, Mark T. Yung was appointed as E

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) April 24, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) April 16, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Iden

2019 First Quarter Results Earnings Release Presentation April 16, 2019

Exhibit 99.2 2019 First Quarter Results Earnings Release Presentation April 16, 2019 This communication contains certain forward-looking information about PacWest that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions

PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER 2019

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 310-887-8520 714-989-4705 FOR IMMEDIATE RELEASE April 16, 2019 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FIRST QUARTER 2019 Highlights · Net Earnings of $112.6 Million, or $0.92 Per Diluted Share · Tax Equivalent Net Interest Margin of 4.6

PACW / PacWest Bancorp DEF 14A

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

Subsidiaries of the Registrant (Filed herewith).

Exhibit 21.1 Page 1 of 3 PACWEST BANCORP LIST OF SUBSIDIARIES December 31, 2018 Subsidiaries of PacWest Bancorp: State: Pacific Western Bank California 10700 West Jefferson Avenue SBL LLC Delaware 10790 Civic Center Drive CRE LLC Delaware 1127 East Gore Boulevard LLC Delaware 12148 Sky Lane SBL LLC Delaware 1238 Green Lane CRE LLC Delaware 1246 East Turin Avenue CRE LLC Delaware 1602 East Central

PACW / PacWest Bancorp 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 Commission File No. 001-36408 PACWEST BANCORP (Exact name of registrant as specified in its charter) Delaware 33-0885320 (State of Incorporation) (I.R.S. Employer Identification No.) 9701 W

Other Events

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) February 24, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) I

PACW / PacWest Bancorp / VANGUARD GROUP INC Passive Investment

pacwestbancorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6 )* Name of issuer: PacWest Bancorp Title of Class of Securities: Common Stock CUSIP Number: 695263103 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to de

Regulation FD Disclosure, 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) January 30, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

2018 Fourth Quarter Results Investor Presentation

Exhibit 99.1 2018 Fourth Quarter Results Investor Presentation This communication contains certain forward-looking information about PacWest that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions and other statements

PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2018

Exhibit 99.1 PRESS RELEASE PacWest Bancorp (Nasdaq: PACW) Contact: Matthew P. Wagner Patrick J. Rusnak President and CEO Executive Vice President and CFO Phone: 310-887-8520 714-989-4705 FOR IMMEDIATE RELEASE January 17, 2019 PACWEST BANCORP ANNOUNCES RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2018 Fourth Quarter 2018 Highlights · Net Earnings of $115.0 Million, or $0.93 Per Diluted Share · Tax

2018 Fourth Quarter Results Earnings Release Presentation January 17, 2019

Exhibit 99.2 2018 Fourth Quarter Results Earnings Release Presentation January 17, 2019 This communication contains certain forward-looking information about PacWest that is intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intenti

Financial Statements and Exhibits, Results of Operations and Financial Condition

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) January 17, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of (Commission File Number) (IRS Employer Incorporation) Id

PACWEST BANCORP ANNOUNCES TERMINATION OF PENDING ACQUISITION AGREEMENT WITH EL DORADO SAVINGS BANK

Exhibit 99.1 PRESS RELEASE PacWest Bancorp 9701 Wilshire Boulevard, Suite 700 Beverly Hills, CA 90212 El Dorado Savings Bank 4040 El Dorado Road Placerville, CA 95667 Contacts: Matthew P. Wagner President and Chief Executive Officer (310) 887-8520 Contacts: George Cook, Jr. Chief Executive Officer (530) 622-1492, ext. 1256 Patrick J. Rusnak Executive Vice President and CFO (714) 989-4705 Thomas Me

Financial Statements and Exhibits, Other Events

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) January 9, 2019 PacWest Bancorp (Exact name of registrant as specified in its charter) Delaware 001-36408 33-0885320 (State of Incorporation) (Commission File Number) (IRS Employer Ide

Sincerely, Thomas C. Meuser Chairman

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No.

PACW / PacWest Bancorp S-4/A

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on November 20, 2018 Registration No.