AQUA / Evoqua Water Technologies Corp - تصريحات هيئة الأوراق المالية والبورصات، التقرير السنوي، بيان الوكيل

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الإحصائيات الأساسية
LEI 529900YQAOMEZRGRRP43
CIK 1604643
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Evoqua Water Technologies Corp
SEC Filings (Chronological Order)
توفر هذه الصفحة قائمة كاملة ومرتبة ترتيبًا زمنيًا لتصريحات هيئة الأوراق المالية والبورصات، باستثناء تصريحات الملكية التي نقدمها في مكان آخر.
February 1, 2024 SC 13G/A

AQUA / Evoqua Water Technologies Corp / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* Evoqua Water Technologies Corp (Name of Issuer) Common Stock (Title of Class of Securities) 30057T105 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropr

June 5, 2023 15-12G

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

15-12G 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 No. 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as s

May 24, 2023 S-8 POS

As filed with the Securities and Exchange Commission on May 24, 2023

S-8 POS As filed with the Securities and Exchange Commission on May 24, 2023 Registration No.

May 24, 2023 EX-3.1

SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) ARTICLE I

EX-3.1 Exhibit 3.1 SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) ARTICLE I NAME The name of the corporation is Evoqua Water Technologies Corp. (the “Corporation”). ARTICLE II AGENT The address of the Corporation’s registered office in the State of Delaware is Corporation Trust Center, 1209 Orange Street, City of Wilmington, Cou

May 24, 2023 POS AM

As filed with the Securities and Exchange Commission on May 24, 2023

POS AM As filed with the Securities and Exchange Commission on May 24, 2023 Registration No.

May 24, 2023 S-8 POS

As filed with the Securities and Exchange Commission on May 24, 2023

S-8 POS As filed with the Securities and Exchange Commission on May 24, 2023 Registration No.

May 24, 2023 8-K

Changes in Control of Registrant, 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, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, 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): May 24, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Commi

May 24, 2023 EX-3.2

FOURTH AMENDED AND RESTATED BYLAWS EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) ARTICLE I CORPORATE OFFICES

EX-3.2 Exhibit 3.2 FOURTH AMENDED AND RESTATED BYLAWS OF EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) ARTICLE I CORPORATE OFFICES Section 1.1 Registered Office. The registered office of the Corporation shall be fixed in the Certificate of Incorporation of the Corporation. Section 1.2 Other Offices. The Corporation may also have an office or offices, and keep the books and records of th

May 24, 2023 S-8 POS

As filed with the Securities and Exchange Commission on May 24, 2023

S-8 POS As filed with the Securities and Exchange Commission on May 24, 2023 Registration No.

May 24, 2023 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on June 05, 2023, pursuant to the provisions of Rule 12d2-2 (a).

May 23, 2023 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): May 23, 2023 EVOQUA WATER TECHNOL

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 23, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Commi

May 22, 2023 EX-1.01

Evoqua Water Technologies Corp. Conflict Minerals Report For the Reporting Period from January 1, 2022 to December 31, 2022

Exhibit 1.01 Evoqua Water Technologies Corp. Conflict Minerals Report For the Reporting Period from January 1, 2022 to December 31, 2022 Introduction This Conflict Minerals Report of Evoqua Water Technologies Corp. (including its majority-owned subsidiaries and variable interest entities that are required to be consolidated, the “Company” or “EWT”) is filed as an exhibit to EWT’s Form SD pursuant

May 22, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jur

SD 1 a2022formsd.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 210 Sixth Avenue, Pitts

May 18, 2023 EX-10.1

FOURTH AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT

EX-10.1 Exhibit 10.1 EXECUTION VERSION FOURTH AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT This FOURTH AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT (this “Amendment”), dated as of May 15, 2023, is entered into by and among the following parties: (i) EVOQUA FINANCE LLC, as Borrower (the “Borrower”); (ii) EVOQUA WATER TECHNOLOGIES LLC, as initial Servicer (the “Servicer”); and (iii) PNC BANK

May 18, 2023 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): May 15, 2023 EVOQUA WATER TECHNOL

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 15, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Commi

May 11, 2023 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): May 11, 2023 EVOQUA WATER TECHNOL

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, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Commi

May 5, 2023 425

REFINITIV STREETEVENTS | www.refinitiv.com | Contact Us ©2023 Refinitiv. All rights reserved. Republication or redistribution of Refinitiv content, including by framing or similar means, is prohibited without the prior written consent of Refinitiv. ‘

425 REFINITIV STREETEVENTS | www.refinitiv.com | Contact Us ©2023 Refinitiv. All rights reserved. Republication or redistribution of Refinitiv content, including by framing or similar means, is prohibited without the prior written consent of Refinitiv. ‘Refinitiv’ and the Refinitiv logo are registered trademarks of Refinitiv and its affiliated companies. MAY 04, 2023 / 1:00PM, XYL.N - Q1 2023 Xyle

May 2, 2023 EX-99.1

Evoqua Water Technologies Reports Second Quarter 2023 Results

Evoqua Water Technologies Reports Second Quarter 2023 Results Second Quarter 2023 Financial Highlights: •Revenue of $477.

May 2, 2023 EX-10.3

Amended and Restated Employment Agreement, by and between Rodney Aulick and the Company, dated March 7, 2023

EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Rodney Aulick (the “Executive”) (each of the Executive and the Company, a “Party,” and collectively, the “Parties”) and, solely for purposes of Sections 2.

May 2, 2023 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): May 2, 2023 EVOQUA WATER TECHNOLO

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 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Commis

May 2, 2023 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): April 28, 2023 EVOQUA WATER TECHN

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 28, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Com

May 2, 2023 EX-10.2

Second Amended and Restated Employment Agreement, by and between Benedict J. Stas and the Company, dated March 7, 2023

EXECUTION VERSION SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Benedict J.

May 2, 2023 EX-10.5

Amended and Restated Employment Agreement, by and between Vincent Grieco and the Company, dated March 7, 2023

EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Vincent Grieco (the “Executive”) (each of the Executive and the Company, a “Party,” and collectively, the “Parties”) and, solely for the purposes of Sections 2.

May 2, 2023 EX-10.1

Second Amended and Restated Employment Agreement, by and between Ronald Keating and the Company, dated March 7, 2023

EXECUTION VERSION SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Ronald Keating (the “Executive”) (each of the Executive and the Company, a “Party,” and collectively, the “Parties”) and, solely for purposes of Sections 2.

May 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 Or ☐ Transition Repor

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 Or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA WA

May 2, 2023 EX-10.6

Amended and Restated Employment Agreement, by and between Snehal Desai and the Company, dated March 7, 2023

EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Snehal Desai (the “Executive”) (each of the Executive and the Company, a “Party,” and collectively, the “Parties”) and, solely for purposes of Sections 2.

May 2, 2023 EX-10.8

Amended and Restated Employment Agreement, by and between James M. Kohosek and the Company, dated March 7, 2023

EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and James M.

May 2, 2023 EX-10.7

Amended and Restated Employment Agreement, by and between Anthony Webster and the Company, dated March 7, 2023

EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Anthony Webster (the “Executive”) (each of the Executive and the Company, a “Party,” and collectively, the “Parties”) and, solely for purposes of Sections 2.

May 2, 2023 EX-10.4

Amended and Restated Employment Agreement, by and between Hervé Fages and the Company, dated March 7, 2023

EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT, dated as of March 7, 2023 (this “Employment Agreement”), by and between Evoqua Water Technologies LLC, a Delaware limited liability company (the “Company”), and Hervé Fages (the “Executive”) (each of the Executive and the Company, a “Party,” and collectively, the “Parties”) and, solely for purposes of Sections 2.

May 2, 2023 EX-10.1

Amendment No. 1 to Credit Agreement, among EWT Holdings III Corp., as the borrower, EWT Holdings II Corp., the other guarantors party thereto, and JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, dated April 28, 2023

Exhibit 10.1 AMENDMENT NO. 1 TO CREDIT AGREEMENT AMENDMENT NO. 1, dated as of April 28, 2023 (this “Amendment”), to the Credit Agreement, dated as of April 1, 2021, by and among EWT HOLDINGS III CORP., a Delaware corporation (the “Borrower”), EWT HOLDINGS II CORP., a Delaware corporation (“Holdings”), the other Guarantors party hereto (solely with respect to Section 5 hereof) and JPMORGAN CHASE BA

April 28, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amend

DEFA14A 1 d487165ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Pr

April 28, 2023 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): April 28, 2023 EVOQUA WATER TECHN

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 28, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Com

April 28, 2023 425

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 28, 2023 EVOQUA WATER TECHN

425 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 28, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation)

April 19, 2023 425

Filed by Xylem Inc.

425 1 d440066d425.htm 425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-6 under the Securities Exchange Act of 1934, as amended Form S-4 File No.: 333-270379 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Leadership Announcement What you need to know: • When Evoqua joins Xylem, Hervé Fag

April 11, 2023 DEFM14A

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.  )

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 Rul

April 4, 2023 425

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425 1 d475019d425.htm 425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 333-270379 Xylem/Evoqua FAQs April 4, 2023 1. When should the anti-trust authorities approve the acquisition? • All internatio

March 31, 2023 425

Xylem-Evoqua leadership Q&A for addition to the Q&A Doc

425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 March 30, 2023 STRICTLY CONFIDENTIAL – FOR INTERNAL USE ONLY Xylem-Evoqua leadership Q&A for addition to the Q&A Doc Given the announc

March 31, 2023 425

Translations to follow.

425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Translations to follow. What you need to know: When Evoqua joins Xylem: • Rodney Aulick will be appointed to continue to lead the Inte

March 27, 2023 425

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425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 333-270379 Xylem/Evoqua FAQs March 27, 2023 1. What kind of cost synergies will there be? Where will they come from? • We estimate annual run-rate c

March 20, 2023 425

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425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 333-270379 Xylem/Evoqua FAQs Week of March 20 Does Xylem have educational reimbursement? Yes. Employees are reimbursed for approved expenses up to $

March 8, 2023 425

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 7, 2023 EVOQUA WATER TECHNO

425 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 7, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (

March 7, 2023 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): March 7, 2023 EVOQUA WATER TECHNO

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 7, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Comm

March 6, 2023 425

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425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem Integration FAQs Week of March 6 What is Xylem’s safety culture? Employee safety and health is an operations core value at Xylem. Th

February 27, 2023 425

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425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem FAQs Week of Feb. 27 1. Do stock ownership guidelines apply to converted Evoqua equity? If so, for whom does this apply? Xylem’s cur

February 21, 2023 425

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425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem FAQs Week of Feb. 20 1. Are we able to continue to fill open roles? Evoqua has decided only to fill open roles critical to deliverin

February 10, 2023 8-K

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): February 7, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (C

February 9, 2023 SC 13G/A

AQUA / Evoqua Water Technologies Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: Evoqua Water Technologies Corp. Title of Class of Securities: Common Stock CUSIP Number: 30057T105 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

February 8, 2023 425

1

425 FEBRUARY 07, 2023 / 2:00PM, XYL.N - Q4 2022 Xylem Inc Earnings Call Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 CORPORATE PARTICIPANTS Andrea van der Berg Matthew Francis Pine Xy

February 7, 2023 425

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Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Frequently Asked Questions 1. How will Performance Based Adjustments (PBA) be handled for 2023? Evoqua’s PBA program remains in place until th

February 3, 2023 SC 13G/A

AQUA / Evoqua Water Technologies Corp / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Evoqua Water Technologies Corp (Name of Issuer) Common Stock (Title of Class of Securities) 30057T105 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropr

February 1, 2023 425

Evoqua Water Technologies (Q1 FY23 Earnings) January 31, 2023

Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Evoqua Water Technologies (Q1 FY23 Earnings) January 31, 2023 Corporate Speakers: • Daniel Brailer; Evoqua Water Technologies Corp.; VP of IR

January 31, 2023 425

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Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 On January 31, 2023, Evoqua Water Technologies Corp. (“Evoqua”) issued a press release announcing the financial results of the Company for the

January 31, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 31, 2022 Or ☐ Transition Re

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 31, 2022 Or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA

January 31, 2023 425

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Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem combination with Evoqua Master Q&A for Candidates 1. What has been announced? • Xylem Inc., a leading global water technology company, a

January 31, 2023 8-K

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 31, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (C

January 31, 2023 EX-99.1

Evoqua Water Technologies Reports First Quarter 2023 Results

Evoqua Water Technologies Reports First Quarter 2023 Results First Quarter 2023 Financial Highlights: •Revenue of $435.

January 31, 2023 425

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Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Candidate Talking Points re: Acquisition Announcement • Evoqua and Xylem announced they have entered into a definitive agreement under which X

January 27, 2023 425

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425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 On January 26, 2023, Evoqua Water Technologies Corp. distributed to employees the following summary of an employee town hall held on Janua

January 25, 2023 425

Solving the World’s Water Challenges Has Never Been More Urgent Advancing future of water by serving customers and communities’ critical water needs RESILIENCE Top global risk, fueling conflict Rising costs, inefficient practices Climate risk, econom

Solving the World’s Water Challenges Has Never Been More Urgent Advancing future of water by serving customers and communities’ critical water needs RESILIENCE Top global risk, fueling conflict Rising costs, inefficient practices Climate risk, economic exposure SCARCITY AFFORDABILITY 2/3 of businesses face substantial risk from water stresses3 40% gap between global water supply and demand by 20301 $750B required to maintain U.

January 25, 2023 425

This filing amends the Form 425 filed on January 24, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

This filing amends the Form 425 filed on January 24, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

January 25, 2023 425

PREPARED REMARKS Xylem Acquisition of Evoqua

This filing amends the Form 425 filed on January 23, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

January 25, 2023 425

This filing amends the Form 425 filed on January 24, 2023

This filing amends the Form 425 filed on January 24, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

January 25, 2023 425

Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.

Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem to Acquire Evoqua January 23, 2023 This filing amends the Form 425 filed on January 23, 2023, to include certain legends and disclai

January 25, 2023 425

2

This filing amends the Form 425 filed on January 23, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

January 25, 2023 425

Xylem (Special Situation Call) January 23, 2023

This filing amends the Form 425 filed on January 23, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

January 25, 2023 425

Translations to follow

This filing amends the Form 425 filed on January 24, 2023 to include certain legends and disclaimers, which were inadvertently omitted.

January 24, 2023 425

Solving the World’s Water Challenges Has Never Been More Urgent Advancing future of water by serving customers and communities’ critical water needs RESILIENCE Top global risk, fueling conflict Rising costs, inefficient practices Climate risk, econom

425 Solving the World’s Water Challenges Has Never Been More Urgent Advancing future of water by serving customers and communities’ critical water needs RESILIENCE Top global risk, fueling conflict Rising costs, inefficient practices Climate risk, economic exposure SCARCITY AFFORDABILITY 2/3 of businesses face substantial risk from water stresses3 40% gap between global water supply and demand by 20301 $750B required to maintain U.

January 24, 2023 425

********************

425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Town Hall January 23, 2023 Transcript Ron Keating Thanks for joining us today. I know, hang on. Many of you have. Sorry, we’ve got some te

January 24, 2023 425

Translations to follow

425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Translations to follow Dear colleagues, Today begins an exciting new chapter in Xylem’s story. We just announced our agreement to acqu

January 24, 2023 425

Filed by Xylem Inc.

425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 CEO Video Script – Xylem Employees Hello everyone. Our agreement to acquire Evoqua is an exciting moment for Xylem, and for the custom

January 24, 2023 425

Filed by Xylem Inc.

425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Global live event discussing Evoqua – January 23, 2022 Hi everyone. Welcome to our event today and thank you so much for joining here.

January 23, 2023 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 22, 2023 EVOQUA WATER TEC

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 22, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (C

January 23, 2023 425

2

Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem combination with Evoqua Master Q&A Transaction and Deal Rationale 1. What has been announced? • Xylem Inc., a leading global water t

January 23, 2023 425

PREPARED REMARKS Xylem Acquisition of Evoqua

425 1 d427062d425.htm 425 Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 PREPARED REMARKS Xylem Acquisition of Evoqua Slide # 1 is already up - Andrea • Thank you, Marissa. Good morning

January 23, 2023 425

Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.

Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem to Acquire Evoqua January 23, 2023 Forward-Looking Statements This presentation contains forward-looking statements within the meani

January 23, 2023 425

********************

Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Customer Talking Points re: Acquisition Announcement • Evoqua and Xylem today announced they have entered into a definitive agreement under wh

January 23, 2023 425

********************

425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Leaders Call Talking Points • As you have likely heard, today we announced that Evoqua and Xylem entered into a definitive agreement for X

January 23, 2023 425

********************

Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Organizational Message Release Date: Monday, January 23, 2023 Banner: From the Desk of Ron Keating To: All Employees Globally Subject: A Messa

January 23, 2023 425

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 22, 2023 EVOQUA WATER TEC

425 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 22, 2023 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation

January 23, 2023 425

Xylem (Special Situation Call) January 23, 2023

Filed by Xylem Inc. pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Xylem (Special Situation Call) January 23, 2023 Corporate Speakers: • Andrea van der Berg; Xylem; VP of IR • Patrick Decker; Xylem; CEO •

January 23, 2023 425

********************

Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Supplier/Partner Talking Points re: Acquisition Announcement • Evoqua and Xylem today announced they have entered into a definitive agreement

January 23, 2023 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2023 XYLEM INC. (Exact

425 1 d441004d425.htm 425 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2023 XYLEM INC. (Exact name of registrant as specified in its charter) Indiana 001-35229 45-2080495 (State or other jurisdiction

January 23, 2023 EX-2.1

Agreement and Plan of Merger, dated as of January 22, 2023, by and among Evoqua Water Technologies Corp., Xylem Inc., and Fore Merger Sub, Inc.

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER among XYLEM INC., FORE MERGER SUB, INC. and EVOQUA WATER TECHNOLOGIES CORP. Dated as of January 22, 2023 TABLE OF CONTENTS Page ARTICLE I THE MERGER 2 Section 1.1 The Merger 2 Section 1.2 Closing 2 Section 1.3 Effective Time 2 Section 1.4 Effects of the Merger 2 Section 1.5 Certificate of Incorporation; Bylaws 3 Section 1.6 Directors 3 Section 1.7 Officers

January 23, 2023 425

********************

Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Talking Points: Employees What: • Evoqua and Xylem announced that we have entered into a definitive agreement under which Xylem will acquire E

January 23, 2023 425

********************

425 1 d413104d425.htm 425 Filed by Evoqua Water Technologies Corp. Pursuant to Rule 425 Under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Evoqua Water Technologies Corp. Commission File No.: 001-38272 Talking Points: Leaders Business Meeting (Evening) • For a few who could not be with us this morning, let’s recap… •

January 23, 2023 EX-99.1

Xylem To Acquire Evoqua in $7.5 Billion All-Stock Transaction

Exhibit 99.1 Xylem Inc. 301 Water Street SE, Suite 200 Washington, DC 20003 Tel +1.202.869.9150 NEWS RELEASE Contacts: Media Houston Spencer +1 (914) 323-5723 [email protected] Investors Andrea van der Berg +1 (914) 260-8612 [email protected] Xylem To Acquire Evoqua in $7.5 Billion All-Stock Transaction • Creates Transformative Platform to Address World’s Most Critical Water Chal

December 23, 2022 DEF 14A

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. )

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 14

December 23, 2022 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. )

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 14a-6(e)(2)) ? Defin

December 15, 2022 8-K

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): December 8, 2022 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (C

November 16, 2022 EX-10.28

Evoqua Water Technologies Corp. Amended and Restated Non-Employee Director Compensation Policy.

Exhibit 10.28 EVOQUA WATER TECHNOLOGIES CORP. AMENDED AND RESTATED NON-EMPLOYEE DIRECTOR COMPENSATION POLICY Adopted: November 30, 2021 Effective as of January 1, 2022 Each member of the Board of Directors (the ?Board?) of Evoqua Water Technologies Corp. (the ?Company?) who is a member as of the Effective Date or thereafter and who is not also serving as an employee of the Company or any of its su

November 16, 2022 EX-10.38

Evoqua Water Technologies Corp. Deferred Compensation Plan for Non-Employee Directors.

Exhibit 10.38 EVOQUA WATER TECHNOLOGIES CORP. DEFERRED COMPENSATION PLAN FOR NON-EMPLOYEE DIRECTORS (ADOPTED FEBRUARY 26, 2018) ARTICLE 1 PURPOSE The purpose of this Plan is to provide members of the Board of Directors of Evoqua Water Technologies Corp. who are not employees of the Company or any of its subsidiaries with the opportunity to defer receipt of certain compensation to which they will b

November 16, 2022 10-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended September 30, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 001-38272 EVOQUA WATER

November 16, 2022 EX-21.1

List of subsidiaries of Evoqua Water Technologies Corp.

Exhibit 21.1 Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Ownership if Less Than 100% ATG Environmental Holdco Limited United Kingdom ATG Environmental Limited United Kingdom ATG R&D Limited United Kingdom ATG UV Technology Limited United Kingdom Evoqua Finance LLC Delaware Evoqua Pension Trustees Limited United Kingdom Evoqua Water Technologies (Shanghai) Co., Ltd.

November 16, 2022 EX-10.39

Evoqua Water Technologies LLC Deferred Compensation Plan (Amended and Restated effective January 1, 2021).

Exhibit 10.39 EVOQUA WATER TECHNOLOGIES LLC DEFERRED COMPENSATION PLAN (Amended and Restated Effective as of January 1, 2021) TABLE OF CONTENTS PAGE INTRODUCTION 1 ARTICLE I DEFINITIONS 1 ARTICLE II ELIGIBILITY 4 ARTICLE III MEMBERSHIP 4 ARTICLE IV COMPENSATION DEPOSITS 5 ARTICLE V EMPLOYER CREDITS 6 ARTICLE VI ELECTION OF FORM OF DISTRIBUTIONS 6 ARTICLE VII EARNINGS EQUIVALENT OPTIONS 8 ARTICLE V

November 15, 2022 EX-99.1

Evoqua Water Technologies Reports Fourth Quarter and Full Year 2022 Results

Evoqua Water Technologies Reports Fourth Quarter and Full Year 2022 Results Fourth Quarter 2022 Financial Highlights: ?Revenue of $504.

November 15, 2022 8-K

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): November 15, 2022 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (

August 2, 2022 EX-99.1

Evoqua Water Technologies Reports Third Quarter 2022 Results

Evoqua Water Technologies Reports Third Quarter 2022 Results Third Quarter 2022 Financial Highlights: ?Revenue of $439.

August 2, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 Or ☐ Transition Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 Or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA WAT

August 2, 2022 8-K

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): August 2, 2022 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Com

May 27, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 210 Sixth Avenue, Pittsburgh, Pennsylvania 1522

May 27, 2022 EX-1.01

Conflict Minerals Report

Exhibit 1.01 Evoqua Water Technologies Corp. Conflict Minerals Report For the Reporting Period from January 1, 2021 to December 31, 2021 Introduction This Conflict Minerals Report of Evoqua Water Technologies Corp. (referred to herein as the “Company” or “EWT”) is filed as an exhibit to EWT’s Form SD pursuant to Rule 13p-1 under the Securities Exchange Act of 1934 relating to conflict minerals (th

May 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 3, 2022 EVOQUA WATER TECHNOLOGIES CORP.

May 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2022 Or ☐ Transition Repor

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2022 Or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA WA

May 3, 2022 EX-99.1

Evoqua Water Technologies Reports Second Quarter 2022 Results

Evoqua Water Technologies Reports Second Quarter 2022 Results Second Quarter 2022 Financial Highlights: ?Revenue of $426.

March 30, 2022 CORRESP

March 30, 2022

March 30, 2022 Correspondence Filing via EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

March 1, 2022 8-K

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): March 1, 2022 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Comm

March 1, 2022 EX-99.1

Evoqua Water Technologies Appoints Julia Sloat to its Board of Directors

Exhibit 99.1 Evoqua Water Technologies Appoints Julia Sloat to its Board of Directors PITTSBURGH- Evoqua Water Technologies (NYSE: AQUA), an industry leader in mission-critical water treatment solutions, today announced the appointment of Julia (Julie) Sloat to its Board of Directors. Ms. Sloat will serve as an independent director and a member of the company?s Audit Committee. ?We are pleased to

February 17, 2022 8-K

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): February 16, 2022 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (

February 10, 2022 SC 13G/A

AQUA / Evoqua Water Technologies Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: Evoqua Water Technologies Corp. Title of Class of Securities: Common Stock CUSIP Number: 30057T105 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

February 9, 2022 SC 13G/A

AQUA / Evoqua Water Technologies Corp / Invesco Ltd. - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Evoqua Water Technologies Corp (Name of Issuer) Common Stock (Title of Class of Securities) 30057T105 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to wh

February 1, 2022 EX-99.1

Evoqua Water Technologies Reports First Quarter 2022 Results

Evoqua Water Technologies Reports First Quarter 2022 Results First Quarter 2022 Financial Highlights: ?Revenue of $366.

February 1, 2022 EX-10.2

Form of Restricted Stock Unit Award-Notice of Grant under the Amended and Restated Evoqua Water Technologies Corp. 2017 Equity Incentive Plan (for awards made after fiscal 2021) (incorporated by reference to Exhibit 10.2 to the Registrant’s Form 10-Q filed on February 1, 2022 (File No. 001-38272)).

Exhibit 10.2 AMENDED AND RESTATED EVOQUA WATER TECHNOLOGIES CORP. 2017 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT ? NOTICE OF GRANT Evoqua Water Technologies Corp. (the ?Company?), a Delaware corporation, hereby grants to the Grantee set forth below (the ?Grantee?) Restricted Stock Units (the ?Restricted Stock Units?), pursuant to the terms and conditions of this Notice of Grant (the ?Notice?), t

February 1, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 31, 2021 or ☐ Transition Re

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 31, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA

February 1, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2022 EVOQUA WATER TECHNOLOGIES CORP.

February 1, 2022 EX-10.3

Form of Performance Share Unit Award-Notice of Grant under the Amended and Restated Evoqua Water Technologies Corp. 2017 Equity Incentive Plan (for awards made after fiscal 2021) (incorporated by reference to Exhibit 10.3 to the Registrant’s Form 10-Q filed on February 1, 2022 (File No. 001-38272)).

Exhibit 10.3 AMENDED AND RESTATED EVOQUA WATER TECHNOLOGIES CORP. 2017 EQUITY INCENTIVE PLAN PERFORMANCE SHARE UNIT ? NOTICE OF GRANT Evoqua Water Technologies Corp. (the ?Company?), a Delaware corporation, hereby grants to the Grantee set forth below (the ?Grantee?) Performance Share Units (the ?Performance Share Units? or ?PSUs?), pursuant to the terms and conditions of this Notice of Grant (the

February 1, 2022 EX-10.1

ada) Inc., Medivators Inc., Mar Cor Purification, Inc., Evoqua Water Technologies LLC, Evoqua Water Technologies Ltd., and, solely for pur

Exhibit 10.1 EXECUTION VERSION ASSET PURCHASE AGREEMENT by and among CANTEL MEDICAL LLC, CANTEL (CANADA) INC., MEDIVATORS INC., MAR COR PURIFICATION, INC., EVOQUA WATER TECHNOLOGIES LLC, EVOQUA WATER TECHNOLOGIES LTD. and, solely for purposes of Section 10.16, EVOQUA WATER TECHNOLOGIES CORP. Dated as of December 20, 2021 TABLE OF CONTENTS Page Article I DEFINITIONS 1 Article II PURCHASE AND SALE O

January 5, 2022 DEF 14A

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. )

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 14

January 5, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amend

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

January 4, 2022 8-K

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): December 30, 2021 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (

January 3, 2022 EX-99.1

Evoqua Water Technologies Closes Acquisition of Renal Business from STERIS

Exhibit 99.1 Evoqua Water Technologies Closes Acquisition of Renal Business from STERIS Pittsburgh, PA - Evoqua Water Technologies (NYSE: AQUA), an industry leader in mission-critical water treatment solutions, today announced the closing of the previously announced acquisition of the renal business historically operated by Mar Cor Purification and Cantel Medical, subsidiaries of STERIS Plc (NYSE:

January 3, 2022 8-K

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 3, 2022 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (Co

December 20, 2021 EX-99.1

Evoqua Water Technologies Signs Definitive Agreement to Acquire Renal Business from STERIS The acquisition will strengthen Evoqua's offerings in medical water purification systems and aftermarket services.

Exhibit 99.1 Evoqua Water Technologies Signs Definitive Agreement to Acquire Renal Business from STERIS The acquisition will strengthen Evoqua's offerings in medical water purification systems and aftermarket services. Pittsburgh, PA - Evoqua Water Technologies (NYSE: AQUA), an industry leader in mission-critical water treatment solutions, today announced that it has entered into a definitive agre

December 20, 2021 8-K

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): December 20, 2021 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation) (

December 6, 2021 8-K/A

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A (Amendment No.

November 17, 2021 EX-10.28

Evoqua Water Technologies Corp. Amended and Restated Non-Employee Director Compensation Policy (adopted August 16, 2021).

Exhibit 10.28 EVOQUA WATER TECHNOLOGIES CORP. AMENDED AND RESTATED NON-EMPLOYEE DIRECTOR COMPENSATION POLICY Adopted: August 16, 2021 (the ?Effective Date?) Each member of the Board of Directors (the ?Board?) of Evoqua Water Technologies Corp. (the ?Company?) who is a member as of the Effective Date or thereafter and who is not also serving as an employee of the Company or any of its subsidiaries

November 17, 2021 EX-10.3

First Amendment to the Receivables Financing Agreement among Evoqua Finance LLC, as borrower, Evoqua Water Technologies LLC, as initial servicer, and PNC Bank, National Association, as lender and administrative agent.

Exhibit 10.3 FIRST AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT This FIRST AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT (this ?Amendment?), dated as of April 15, 2021, is entered into by and among the following parties: (i)EVOQUA FINANCE LLC, as Borrower (the ?Borrower?); (ii)EVOQUA WATER TECHNOLOGIES LLC, as initial Servicer (the ?Servicer?); and (iii)PNC BANK, NATIONAL ASSOCIATION (?PNC?

November 17, 2021 EX-10.33

Form of Non-Employee Director Restricted Stock Unit Award Agreement under the Evoqua Water Technologies Corp. 2017 Equity Incentive Plan.

Exhibit 10.33 EVOQUA WATER TECHNOLOGIES CORP. 2017 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT - NOTICE OF GRANT Evoqua Water Technologies Corp. (the ?Company?), a Delaware corporation, hereby grants to the Grantee set forth below (the ?Grantee?) Restricted Stock Units (the ?Restricted Stock Units?), pursuant to the terms and conditions of this Notice of Grant (the ?Notice?), the Restricted Stock

November 17, 2021 10-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended September 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission file number: 001-38272 EVOQUA WATER

November 17, 2021 EX-21.1

List of subsidiaries of Evoqua Water Technologies Corp.

Exhibit 21.1 Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Ownership if Less Than 100% ATG Environmental Holdco Limited United Kingdom ATG Environmental Limited United Kingdom ATG R&D Limited United Kingdom ATG UV Technology Limited United Kingdom Evoqua Finance LLC Delaware Evoqua Pension Trustees Limited United Kingdom Evoqua Treated Water Outsourcing LLC Delaware E

November 17, 2021 EX-10.4

Second Amendment to the Receivables Financing Agreement among Evoqua Finance LLC, as borrower, Evoqua Water Technologies LLC, as initial servicer, and PNC Bank, National Association, as lender and administrative agent.

Exhibit 10.4 SECOND AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT This SECOND AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT (this ?Amendment?), dated as of July 30, 2021, is entered into by and among the following parties: (i)EVOQUA FINANCE LLC, as Borrower (the ?Borrower?); (ii)EVOQUA WATER TECHNOLOGIES LLC, as initial Servicer (the ?Servicer?); and (iii)PNC BANK, NATIONAL ASSOCIATION (?PNC

November 16, 2021 EX-99.1

Evoqua Water Technologies Reports Fourth Quarter and Full Year 2021 Results

Evoqua Water Technologies Reports Fourth Quarter and Full Year 2021 Results Fourth Quarter 2021 Financial Highlights: ?Revenue of $426.

November 16, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 16, 2021 EVOQUA WATER TECHNOLOGIES CORP.

September 28, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 28, 2021 EVOQUA WATER TECHNOLOGIES CORP.

September 28, 2021 EX-99.1

Deep Dive into Outsourced Water & Digital Enablement Transformation September 2021 © 2021 EVOQUA WATER TECHNOLOGIES | 2 This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.

Deep Dive into Outsourced Water & Digital Enablement Transformation September 2021 ? 2021 EVOQUA WATER TECHNOLOGIES | 2 This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.

August 26, 2021 EX-99.1

NOTICE OF PROPOSED SETTLEMENT OF DERIVATIVE ACTION, SETTLEMENT HEARING, AND RIGHT TO APPEAR The U.S. District Court for the Western District of Pennsylvania authorized this Notice. This is not a solicitation from a lawyer.

Exhibit 99.1 UNITED STATES DISTRICT COURT WESTERN DISTRICT OF PENNSYLVANIA Case No. 2:19-cv-00410-MPK IN RE EVOQUA WATER TECHNOLOGIES CORP. DERIVATIVE LITIGATION NOTICE OF PROPOSED SETTLEMENT OF DERIVATIVE ACTION, SETTLEMENT HEARING, AND RIGHT TO APPEAR The U.S. District Court for the Western District of Pennsylvania authorized this Notice. This is not a solicitation from a lawyer. TO: ALL RECORD

August 26, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 23, 2021 EVOQUA WATER TECHNOLOGIES CORP.

August 26, 2021 EX-99.2

EVOQUA WATER TECHNOLOGIES ANNOUNCES PROPOSED SETTLEMENT OF STOCKHOLDER DERIVATIVE ACTION

Exhibit 99.2 EVOQUA WATER TECHNOLOGIES ANNOUNCES PROPOSED SETTLEMENT OF STOCKHOLDER DERIVATIVE ACTION Pittsburgh, PA - Evoqua Water Technologies Corp. (NYSE: AQUA), a leader in mission-critical water treatment solutions, today announced that on August 23, 2021, the United States District Court for the Western District of Pennsylvania entered an order preliminarily approving a settlement of the pre

August 18, 2021 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 16, 2021 EVOQUA WATER TECHNOLOGIES CORP.

August 18, 2021 EX-99.1

Evoqua Water Technologies Appoints Sherrese Clarke Soares to Its Board of Directors

Evoqua Water Technologies Appoints Sherrese Clarke Soares to Its Board of Directors PITTSBURGH, PA-Evoqua Water Technologies (NYSE: AQUA), a leader in mission-critical water treatment solutions, today announced the appointment of Sherrese Clarke Soares to its Board of Directors.

August 11, 2021 EX-10.1

Third Amendment to the Receivables Financing Agreement among Evoqua Finance LLC, as borrower, Evoqua Water Technologies LLC, as initial servicer, and PNC Bank, National Association, as lender and administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on August 11, 2021 (File No. 001-38272)).

EX-10.1 2 thirdamendmenttorfaex101.htm EX-10.1 Exhibit 10.1 THIRD AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT This THIRD AMENDMENT TO THE RECEIVABLES FINANCING AGREEMENT (this “Amendment”), dated as of August 5, 2021, is entered into by and among the following parties: (i)EVOQUA FINANCE LLC, as Borrower (the “Borrower”); (ii)EVOQUA WATER TECHNOLOGIES LLC, as initial Servicer (the “Servicer”);

August 11, 2021 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2021 EVOQUA WATER TECHNOLOGIES CORP.

August 11, 2021 EX-10.2

First Amendment to the Sale and Contribution Agreement among Evoqua Finance LLC, as buyer, Evoqua Water Technologies LLC, as initial servicer and an originator, and Neptune Benson, Inc., as an originator (incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on August 11, 2021 (File No. 001-38272)).

Exhibit 10.2 FIRST AMENDMENT TO THE SALE AND CONTRIBUTION AGREEMENT This FIRST AMENDMENT TO THE SALE AND CONTRIBUTION AGREEMENT (this ?Amendment?), dated as of August 5, 2021, is entered into by and among the following parties: (i)EVOQUA FINANCE LLC, as Buyer (the ?Buyer?); (ii)EVOQUA WATER TECHNOLOGIES LLC, as initial Servicer (the ?Servicer?) and an Originator (in such capacity, an ?Originator?)

August 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2021 or ☐ Transition Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA WAT

August 3, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 EVOQUA WATER TECHNOLOGIES CORP.

August 3, 2021 EX-99.1

Evoqua Water Technologies Reports Third Quarter 2021 Results

Evoqua Water Technologies Reports Third Quarter 2021 Results Third Quarter 2021 Financial Highlights: ?Revenue of $369.

May 27, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 210 Sixth Avenue, Pittsburgh, Pennsylvania 1522

May 27, 2021 EX-1.01

Conflict Minerals Report

Exhibit 1.01 Evoqua Water Technologies Corp. Conflict Minerals Report For the Reporting Period from January 1, 2020 to December 31, 2020 Introduction This Conflict Minerals Report of Evoqua Water Technologies Corp. (referred to herein as the ?Company? or ?EWT?) is filed as an exhibit to EWT?s Form SD pursuant to Rule 13p-1 under the Securities Exchange Act of 1934 relating to conflict minerals (th

May 19, 2021 EX-10.2

Form of Special Performance Share Unit Award Agreement (incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on May 19, 2021 (File No. 001-38272)).

EX-10.2 3 specialpsuformmay2021.htm EX-10.2 EVOQUA WATER TECHNOLOGIES CORP. 2017 EQUITY INCENTIVE PLAN SPECIAL PERFORMANCE SHARE UNIT – NOTICE OF GRANT Evoqua Water Technologies Corp. (the “Company”), a Delaware corporation, hereby grants to the Grantee set forth below (the “Grantee”) Performance Share Units (the “Performance Share Units” or “PSUs”), pursuant to the terms and conditions of this No

May 19, 2021 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 18, 2021 EVOQUA WATER TECHNOLOGIES CORP.

May 19, 2021 EX-10.1

Form of Special Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on May 19, 2021 (File No. 001-38272)).

EVOQUA WATER TECHNOLOGIES CORP. 2017 EQUITY INCENTIVE PLAN SPECIAL RESTRICTED STOCK UNIT ? NOTICE OF GRANT Evoqua Water Technologies Corp. (the ?Company?), a Delaware corporation, hereby grants to the Grantee set forth below (the ?Grantee?) Restricted Stock Units (the ?Restricted Stock Units?), pursuant to the terms and conditions of this Notice of Grant (the ?Notice?), the Restricted Stock Unit A

May 5, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2021 EVOQUA WATER TECHNOLOGIES CORP.

May 5, 2021 EX-99.1

Evoqua Water Technologies Reports Second Quarter 2021 Results

Evoqua Water Technologies Reports Second Quarter 2021 Results Second Quarter 2021 Financial Highlights: ?Revenue of $346.

May 5, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA WA

April 1, 2021 EX-10.2

Receivables Financing Agreement among Evoqua Finance LLC, as the borrower, the lenders from time to time party thereto, PNC Bank, National Association, as administrative agent, Evoqua Water Technologies LLC, as initial servicer, and PNC Capital Markets LLC, as structuring agent, dated April 1, 2021 (incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed on April 1, 2021 (File No. 001-38272)).

Exhibit 10.2 EXECUTION COPY RECEIVABLES FINANCING AGREEMENT Dated as of April 1, 2021 by and among EVOQUA FINANCE LLC, as Borrower, THE PERSONS FROM TIME TO TIME PARTY HERETO, as Lenders, PNC BANK, NATIONAL ASSOCIATION, as Administrative Agent, EVOQUA WATER TECHNOLOGIES LLC, as initial Servicer, and PNC CAPITAL MARKETS LLC, as Structuring Agent Table of Contents Page ARTICLE I DEFINITIONS 1 SECTIO

April 1, 2021 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2021 EVOQUA WATER TECHNOLOGIES CORP.

April 1, 2021 EX-10.1

Credit Agreement among EWT Holdings III Corp., as the borrower, EWT Holdings II Corp., as parent guarantor, the lenders from time to time party thereto, JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, and ING Capital, LLC, as sustainability coordinator, dated April 1, 2021 (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on April 1, 2021 (File No. 001-38272)).

Exhibit 10.1 EXECUTION VERSION CREDIT AGREEMENT Dated as of April 1, 2021 among EWT HOLDINGS III CORP. as the Borrower, EWT HOLDINGS II CORP. as Holdings, JPMorgan Chase Bank, N.A. as Administrative Agent and Collateral Agent JPMorgan Chase Bank, N.A., PNC Bank, National Association, CITIZENS BANK, N.A. and BANK OF THE WEST as L/C Issuers The Other Lenders Party Hereto, JPMorgan Chase Bank, N.A.,

April 1, 2021 EX-10.3

Sale and Contribution Agreement among Evoqua Finance LLC, as the purchaser, Evoqua Water Technologies LLC, as initial servicer and as an originator, and Neptune Benson, Inc., as an originator, dated April 1, 2021 (incorporated by reference to Exhibit 10.3 to the Registrant’s Form 8-K filed on April 1, 2021 (File No. 001-38272)).

Exhibit 10.3 Execution Version SALE AND CONTRIBUTION AGREEMENT Dated as of April 1, 2021 among VARIOUS ENTITIES LISTED ON SCHEDULE I HERETO, as Originators, EVOQUA WATER TECHNOLOGIES LLC, as Servicer, and EVOQUA FINANCE LLC, as Buyer Contents Clause Subject Matter Page ARTICLE I AGREEMENT TO PURCHASE AND SELL SECTION 1.1 Agreement To Purchase and Sell 1 SECTION 1.2 Timing of Purchases. 3 SECTION 1

March 11, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 Under the

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 Under the Securities Exchange Act of 1934 (Amendment No. 2)* Evoqua Water Technologies Corp. (Name of Issuer) Common Stock, par value $0.01 per share (

March 2, 2021 EX-99.1

J.P. Morgan Global High Yield & Leveraged Finance Conference March 2, 2021 Ben Stas Chief Financial Officer © 2021 EVOQUA WATER TECHNOLOGIES | 2 This presentation contains forward-looking statements within the meaning of the Private Securities Litiga

J.P. Morgan Global High Yield & Leveraged Finance Conference March 2, 2021 Ben Stas Chief Financial Officer ? 2021 EVOQUA WATER TECHNOLOGIES | 2 This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All of these forward-looking statements are based on our current expectations, assumptions, estimates and projections. While

March 2, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 2, 2021 EVOQUA WATER TECHNOLOGIES CORP.

February 17, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2021 EVOQUA WATER TECHNOLOGIES CORP.

February 16, 2021 EX-99

JOINT FILING AGREEMENT

EX-99 2 Rule13DJointFilingAgreement.htm JOINT FILING AGREEMENT JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) (l) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing of the attached Schedule 13G, and any and all amendments thereto, and expressly authorize Invesco Ltd., as the ultimate parent company of each of its undersigned subsidiarie

February 16, 2021 SC 13G

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Evoqua Water Technologies Corp (Name of Issuer) Common Stock (Title of Class of Securities) 30057T105 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whic

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 4)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 4)* Evoqua Water Technologies Corp. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 30057T105 (CUSIP Number) February 11, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 12, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3)*

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* Evoqua Water Technologies Corp. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 30057T105 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 11, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* EVOQUA WATER TECHNOLOGIES CORP. (Name of Issuer) (Title of Class of Securities) (CUSIP Number) (Date of E

SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* EVOQUA WATER TECHNOLOGIES CORP. (Name of Issuer) SHARES (Title of Class of Securities) 30057T105 (CUSIP Number) 12/31/2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

February 11, 2021 EX-1.1

Underwriting Agreement, dated February 8, 2021, by and among Evoqua Water Technologies Corp., the selling stockholders named in Schedule A thereto and Credit Suisse Securities (USA) LLC.

Exhibit 1.1 EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) 16,382,793 Shares of Common Stock UNDERWRITING AGREEMENT Dated: February 8, 2021 EVOQUA WATER TECHNOLOGIES CORP. 16,382,793 Shares of Common Stock UNDERWRITING AGREEMENT February 8, 2021 Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, NY 10010 Dear Sirs: 1. Introductory. The stockholders of Evoqua Water Technol

February 11, 2021 8-K

Financial Statements and Exhibits, Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 8, 2021 EVOQUA WATER TECHNOLOGIES CORP.

February 10, 2021 424B3

CALCULATION OF REGISTRATION FEE

TABLE OF CONTENTS Filed pursuant to Rule 424(b)(3) Registration Statement No.333-236884 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Per Share Proposed Maximum Aggregate Offering Price Amount of Registration Fee Common Stock, par value $0.01 per share 16,382,793 $ 25.87 $ 423,822,854.91 $ 46,239.07(2) (1)

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: Evoqua Water Technologies Corp. Title of Class of Securities: Common Stock CUSIP Number: 30057T105 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

February 9, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 9, 2021 EVOQUA WATER TECHNOLOGIES CORP.

February 9, 2021 EX-99.1

EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering Pittsburgh, February 9, 2021. Evoqua Water Technologies Corp. (NYSE: AQUA) announced the pricing of a secondary public offering of 16,382,793 shares of its common stock by certain institutional shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholders”)

February 8, 2021 424B3

SUBJECT TO COMPLETION, DATED FEBRUARY 8, 2021 PRELIMINARY PROSPECTUS SUPPLEMENT 16,382,793 Shares Evoqua Water Technologies Corp. Common Stock

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

February 8, 2021 EX-99.1

EVOQUA WATER TECHNOLOGIES ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING Pittsburgh, February 8, 2021. Evoqua Water Technologies Corp. (NYSE: AQUA) today announced the launch of a secondary public offering of 16,382,793 shares of its common stock by certain institutional shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholde

February 8, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 8, 2021 EVOQUA WATER TECHNOLOGIES CORP.

February 2, 2021 EX-99.1

Evoqua Water Technologies Reports First Quarter 2021 Results

Evoqua Water Technologies Reports First Quarter 2021 Results First Quarter 2021 Financial Highlights: •Revenue of $322.

February 2, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 31, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File Number: 001-38272 EVOQUA

February 2, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 2, 2021 EVOQUA WATER TECHNOLOGIES CORP.

January 5, 2021 DEFA14A

- 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 ☒ 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))

January 5, 2021 DEF 14A

those portions of our Definitive Proxy Statement on Schedule 14A, filed with the SEC on January 5, 2021, which are incorporated by reference in 2020 Form 10-K.

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

December 4, 2020 EX-1.1

Underwriting Agreement, dated December 1, 2020, by and among Evoqua Water Technologies Corp., the selling stockholders named in Schedule A thereto and Citigroup Global Markets Inc.

Exhibit 1.1 EXECUTION VERSION EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) 12,000,000 Shares of Common Stock UNDERWRITING AGREEMENT Dated: December 1, 2020 EVOQUA WATER TECHNOLOGIES CORP. 12,000,000 Shares of Common Stock UNDERWRITING AGREEMENT December 1, 2020 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 Dear Sirs: 1. Introductory. The stockholders of Ev

December 4, 2020 8-K

Financial Statements and Exhibits, Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2020 EVOQUA WATER TECHNOLOGIES CORP.

December 3, 2020 424B3

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Per Share Proposed Maximum Aggregate Offering Price Amount of Registration Fee Common Stock, par value $0.01 pe

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.

December 2, 2020 EX-99.1

EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering Pittsburgh, December 2, 2020. Evoqua Water Technologies Corp. (NYSE: AQUA) announced the pricing of a secondary public offering of 12 million shares of its common stock by certain institutional shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholders”)

December 2, 2020 8-K

Financial Statements and Exhibits, Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 2, 2020 EVOQUA WATER TECHNOLOGIES CORP.

December 1, 2020 EX-99.1

EVOQUA WATER TECHNOLOGIES ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING Pittsburgh, December 1, 2020. Evoqua Water Technologies Corp. (NYSE: AQUA) today announced the launch of a secondary public offering of 12 million shares of its common stock by certain institutional shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholde

December 1, 2020 8-K

Financial Statements and Exhibits, Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2020 EVOQUA WATER TECHNOLOGIES CORP.

December 1, 2020 424B3

SUBJECT TO COMPLETION, DATED DECEMBER 1, 2020 PRELIMINARY PROSPECTUS SUPPLEMENT 12,000,000 Shares Evoqua Water Technologies Corp. Common Stock

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.

November 25, 2020 EX-10.1

Amendment No. 2 to the Second Amended and Restated Registration Rights Agreement, among Evoqua Water Technologies Corp., AEA Investors Fund V LP, AEA Investors Fund V-A LP, AEA Investors Fund V-B LP, AEA Investors Participant Fund V LP, AEA Investors QP Participant Fund V LP and the 2020 Amending Investors, dated November 25, 2020.

Exhibit 10.1 EXECUTION VERSION THIS AMENDMENT NO. 2 TO THE SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Amendment”) is entered into as of November 25, 2020, by and among (i) Evoqua Water Technologies Corp. (f/k/a EWT Holdings I Corp.), a Delaware corporation (the “Company”), (ii) the AEA Investors and (iii) the 2020 Amending Investors (as defined herein), to amend the Second Am

November 25, 2020 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 25, 2020 EVOQUA WATER TECHNOLOGIES CORP.

November 20, 2020 EX-4.2

Exhibit 4.2

Exhibit 4.2 Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 As of November 20, 2020, Evoqua Water Technologies Corp., a Delaware corporation, had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): Common Stock, par value $0.01 per share (the “Common Stock”). The following su

November 20, 2020 EX-21.1

List of subsidiaries of Evoqua Water Technologies Corp.

Exhibit 21.1 Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Ownership if Less Than 100% ATG Environmental Holdco Limited United Kingdom ATG Environmental Limited United Kingdom ATG R&D Limited United Kingdom ATG UV Technology Limited United Kingdom Evoqua Pension Trustees Limited United Kingdom Evoqua Treated Water Outsourcing LLC Delaware Evoqua Water Technologies (Sh

November 20, 2020 10-K

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 For the Fiscal Year Ended September 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant

November 17, 2020 EX-99.1

Evoqua Water Technologies Reports Fourth Quarter and Full Year 2020 Results

Evoqua Water Technologies Reports Fourth Quarter and Full Year 2020 Results Fourth Quarter 2020 Financial Highlights: •Consolidated revenue of $383.

November 17, 2020 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 17, 2020 EVOQUA WATER TECHNOLOGIES CORP.

August 10, 2020 424B3

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Per Share Proposed Maximum Aggregate Offering Price Amount of Registration Fee Common Stock, par value $0.01 pe

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

August 10, 2020 EX-1.1

Underwriting Agreement, dated August 6, 2020, by and among Evoqua Water Technologies Corp., the selling stockholders named in Schedule A thereto and Goldman Sachs & Co. LLC.

Exhibit 1.1 Execution Version EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) 8,000,000 Shares of Common Stock UNDERWRITING AGREEMENT Dated: August 6, 2020 EVOQUA WATER TECHNOLOGIES CORP. 8,000,000 Shares of Common Stock UNDERWRITING AGREEMENT August 6, 2020 Goldman Sachs & Co. LLC 200 West Street New York, NY 10282 Dear Sirs: 1. Introductory. The stockholders of Evoqua Water Technologies

August 10, 2020 8-K

Financial Statements and Exhibits, Other Events - FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2020 EVOQUA WATER TECHNOLOGIES CORP.

August 7, 2020 EX-99.1

EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering Pittsburgh, August 7, 2020. Evoqua Water Technologies Corp. (NYSE: AQUA) announced the pricing of a secondary public offering of 8 million shares of its common stock by certain institutional shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholders”), a

August 7, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2020 EVOQUA WATER TECHNOLOGIES CORP.

August 6, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2020 EVOQUA WATER TECHNOLOGIES CORP.

August 6, 2020 EX-99.1

EVOQUA WATER TECHNOLOGIES ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES ANNOUNCES LAUNCH OF SECONDARY PUBLIC OFFERING Pittsburgh, August 6, 2020. Evoqua Water Technologies Corp. (NYSE: AQUA) today announced the launch of a secondary public offering of 8 million shares of its common stock by certain institutional shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholders”

August 6, 2020 424B3

SUBJECT TO COMPLETION. DATED AUGUST 6, 2020 PRELIMINARY PROSPECTUS SUPPLEMENT 8,000,000 Shares Evoqua Water Technologies Corp. Common Stock

424B3 1 a2242194z424b3.htm 424B3 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. 333-236884 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securitie

August 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2020 EVOQUA WATER TECHNOLOGIES CORP.

August 4, 2020 EX-99.1

Evoqua Water Technologies Reports Third Quarter 2020 Results

Evoqua Water Technologies Reports Third Quarter 2020 Results Third Quarter 2020 Financial Highlights: •Consolidated revenues of $347.

August 4, 2020 10-Q

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, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registra

May 29, 2020 EX-1.01

Conflict Minerals Report

Exhibit 1.01 Evoqua Water Technologies Corp. Conflict Minerals Report For the Reporting Period from January 1 to December 31, 2019 Introduction This Conflict Minerals Report of Evoqua Water Technologies Corp. (referred to herein as the “Company” or “EWT”) is filed as an exhibit to EWT’s Form SD pursuant to Rule 13p-1 promulgated under the Securities Exchange Act of 1934, as amended, relating to co

May 29, 2020 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT EVOQUA WATER TECHNOLOGIES CORP. (Exact name of the registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdiction (Commission File Number) (IRS Employer Identification No.) of incorporation or organization) 210 Sixth Avenue, Pittsburgh, Pennsylvania 1522

May 7, 2020 S-8

- S-8

As filed with the Securities and Exchange Commission on May 7, 2020 Registration No.

May 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2020 EVOQUA WATER TECHNOLOGIES CORP.

May 6, 2020 EX-10.1

Amended and Restated Evoqua Water Technologies Corp. 2017 Equity Incentive Plan (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 10-Q filed on May 6, 2020 (File No. 001-38272)).

Exhibit 10.1 AMENDED AND RESTATED EVOQUA WATER TECHNOLOGIES CORP. 2017 EQUITY INCENTIVE PLAN (Adopted as of February 18, 2020) 1. Purpose. The purpose of the Plan is to assist the Company with attracting, retaining, incentivizing and motivating officers and employees of, consultants to, and non-employee directors providing services to, the Company and its Subsidiaries and to promote the success of

May 6, 2020 EX-99.1

Evoqua Water Technologies Reports Second Quarter 2020 Results

Evoqua Water Technologies Reports Second Quarter 2020 Results Second Quarter 2020 Financial Highlights: • Consolidated revenues of $351.

May 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2020 or o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registr

April 14, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 14, 2020 EVOQUA WATER TECHNOLOGIES CORP.

April 14, 2020 EX-99.1

Evoqua Provides COVID-19 Business Update and Announces Second Quarter 2020 Earnings Call and Webcast Date

Evoqua Provides COVID-19 Business Update and Announces Second Quarter 2020 Earnings Call and Webcast Date PITTSBURGH, April 14, 2020 - Evoqua Water Technologies Corp.

March 10, 2020 EX-1.1

Underwriting Agreement, dated March 5, 2020, by and among Evoqua Water Technologies Corp., the selling stockholders named in Schedule A thereto and Credit Suisse Securities (USA) LLC and RBC Capital Markets, LLC, as representatives of the several underwriters named in Schedule B thereto.

Exhibit 1.1 Execution Version EVOQUA WATER TECHNOLOGIES CORP. (a Delaware corporation) 13,000,000 Shares of Common Stock UNDERWRITING AGREEMENT Dated: March 5, 2020 EVOQUA WATER TECHNOLOGIES CORP. 13,000,000 Shares of Common Stock UNDERWRITING AGREEMENT March 5, 2020 CREDIT SUISSE SECURITIES (USA) LLC RBC CAPITAL MARKETS, LLC As Representatives of the Several Underwriters named in Schedule B c/o C

March 10, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2020 EVOQUA WATER TECHNOLOGIES CORP.

March 9, 2020 424B3

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Proposed Maximum Offering Price Per Share Proposed Maximum Aggregate Offering Price Amount of Registration Fee Common Stock, par value $0.01 pe

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.

March 6, 2020 EX-99.1

EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering

Exhibit 99.1 EVOQUA WATER TECHNOLOGIES Announces PRICING of SECONDARY Public Offering Pittsburgh, March 5, 2020. Evoqua Water Technologies Corp. (NYSE: AQUA) today announced the pricing of a secondary public offering of 13 million shares of its common stock by certain shareholders of the company, including certain affiliates of AEA Investors LP (collectively, the “Selling Shareholders”) at a publi

March 6, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 5, 2020 EVOQUA WATER TECHNOLOGIES CORP.

March 4, 2020 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 4, 2020 EVOQUA WATER TECHNOLOGIES CORP.

March 4, 2020 EX-99.1

EVOQUA WATER TECHNOLOGIES Announces LAUNCH of SECONDARY Public Offering

EX-99.1 2 tm209646d2ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 EVOQUA WATER TECHNOLOGIES Announces LAUNCH of SECONDARY Public Offering Pittsburgh, March 4, 2020. Evoqua Water Technologies Corp. (NYSE: AQUA) today announced the launch of a secondary public offering of 13 million shares of its common stock by certain shareholders of the company, including certain affiliates of AEA Investors LP (collective

March 4, 2020 S-3ASR

Form S-3 (File No. 333-236884), effective upon filing with the Securities and Exchange Commission on March 4, 2020

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on March 4, 2020 Registration No.

March 4, 2020 424B3

SUBJECT TO COMPLETION. DATED MARCH 4, 2020

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 Statement No.

February 24, 2020 8-K

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2020 EVOQUA WATER TECHNOLOGIES CORP.

February 24, 2020 EX-10.1

Amendment No. 7, among EWT Holdings III Corp., as borrower, EWT Holdings II Corp., as parent guarantor, the subsidiary guarantors party thereto, the financial institutions party thereto, as lenders, and Credit Suisse AG, as administrative agent and collateral agent, dated February 18, 2020 (incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on February 24, 2020 (File No. 001-38272)).

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 7 AMENDMENT NO. 7 (this “Amendment”), dated as of February 18, 2020, among EWT HOLDINGS III CORP. (f/k/a WTG HOLDINGS III CORP.), a Delaware corporation (the “Borrower”), EWT HOLDINGS II CORP. (f/k/a WTG HOLDINGS II CORP.), a Delaware corporation (“Holdings”), the other Loan Parties identified on the signature pages hereto, each financial institution id

February 21, 2020 8-K

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, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2020 EVOQUA WATER TECHNOLOGIES CORP.

February 19, 2020 CORRESP

AQUA / Evoqua Water Technologies Corp. CORRESP - -

February 19, 2020 Brittany Ebbertt or Christine Dietz Division of Corporation Finance United States Securities and Exchange Commission 100 F Street, N.

February 14, 2020 SC 13G/A

AQUA / Evoqua Water Technologies Corp. / AEA INVESTORS FUND V LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Evoqua Water Technologies Corp. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 30057T105 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 14, 2020 EX-99.1

Joint Filing Agreement

EXHIBIT 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of an amended statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock, $0.01 par value, of Evoqua Water Technologies Corp. and further agree to the

February 14, 2020 EX-99.3

Power of Attorney of Brian R. Hoesterey

EXHIBIT 99.3 POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints Barbara Burns, with full power of substitution, the undersigned’s true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned, in the undersigned’s capacity as executive officer, director and/or beneficial owner of equity securities of Evoqua Water Technologies

February 12, 2020 SC 13G/A

AQUA / Evoqua Water Technologies Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Evoqua Water Technologies Corp Title of Class of Securities: Common Stock CUSIP Number: 30057T105 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

February 11, 2020 SC 13G

AQUA / Evoqua Water Technologies Corp. / BANQUE PICTET & CIE SA - SC 13G Passive Investment

SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* EVOQUA WATER TECHNOLOGIES CORP. (Name of Issuer) SHARES (Title of Class of Securities) 30057T105 (CUSIP Number) 12/31/2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

February 4, 2020 10-Q

our Quarterly Report on Form 10-Q for the quarterly period ended December 31, 2019, filed with the SEC on February 4, 2020;

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended December 31, 2019 or o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of regi

February 4, 2020 EX-99.1

Evoqua Water Technologies Reports First Quarter 2020 Results

Evoqua Water Technologies Reports First Quarter 2020 Results First Quarter 2020 Financial Highlights: • Consolidated revenues of $346.

February 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 4, 2020 EVOQUA WATER TECHNOLOGIES CORP.

January 7, 2020 EX-99.2

UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS

Exhibit 99.2 UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS On December 31, 2019, Evoqua Water Technologies Corp. (the “Company”), through its wholly-owned subsidiaries, completed the previously-announced sale (the “Transaction”) of the Company’s Memcor® low pressure membrane product line (including the product line’s global workforce, its manufacturing site in Windsor, Australia, associated op

January 7, 2020 EX-99.1

EVOQUA COMPLETES DIVESTITURE OF MEMCOR® PRODUCT LINE

Exhibit 99.1 EVOQUA COMPLETES DIVESTITURE OF MEMCOR® PRODUCT LINE January 2, 2020 - PITTSBURGH - Evoqua Water Technologies (NYSE: AQUA) announced that the company has completed the divestiture of the Memcor® product line to Dupont Safety & Construction. Gross proceeds from the sale were approximately $110 million. “The successful closing of the Memcor divestiture is an important milestone in our p

January 7, 2020 8-K

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

8-K 1 a8-kmemcor.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2019 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant as specified in its charter) Delaware 001-38272 46-4132761 (State or other jurisdict

January 6, 2020 DEFA14A

AQUA / Evoqua Water Technologies Corp. DEFA14A - - 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 ☒ 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))

January 6, 2020 DEF 14A

Definitive Proxy Statement on Schedule 14A, filed with the SEC on January 6, 2020

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

December 20, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 18, 2019 EVOQUA WATER TECHNOLOGIES CORP.

December 20, 2019 EX-2.1

Amendment to Purchase and Sale Agreement, by and among Evoqua Water Technologies LLC, WTG Holdings Cooperatief U.A., Evoqua Water Technologies Limited, Evoqua Water Technologies Pte. Ltd., Evoqua Water Technologies Ltd., Evoqua Water Technologies (Shanghai) Co. Ltd., WTG Holdco Australia (Memcor) Pty. Ltd., Evoqua Water Technologies Membrane Systems Pty. Ltd. and DuPont de Nemours, Inc., dated December 18, 2019 (incorporated by reference to Exhibit 2.1 to the Registrant’s Form 8-K filed on December 20, 2019 (File No. 001-38272)).

EXECUTION VERSION AMENDMENT TO PURCHASE AND SALE AGREEMENT This AMENDMENT TO PURCHASE AND SALE AGREEMENT, dated as of December 18, 2019 (this “Amendment”), is entered into by and among EVOQUA WATER TECHNOLOGIES LLC, a Delaware limited liability company (“Evoqua LLC”), WTG HOLDINGS COOPERATIEF U.

December 4, 2019 10-K/A

Annual Report on Form 10-K/A filed on December 4, 2019 for the year ended September 30, 2019

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ý Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Fiscal Year Ended September 30, 2019 or o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact n

December 4, 2019 EX-99.1

Credit Suisse Industrials Conference December 5, 2019 TRANSFORMING WATER. ENRICHING LIFE.TM ©2019 Evoqua Water Technologies Forward-Looking Statement Safe Harbor This presentation contains forward-looking statements within the meaning of the Private

csindustrialsconferencep Credit Suisse Industrials Conference December 5, 2019 TRANSFORMING WATER.

December 4, 2019 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2019 EVOQUA WATER TECHNOLOGIES CORP.

November 27, 2019 S-8

AQUA / Evoqua Water Technologies Corp. S-8 - - S-8

As filed with the Securities and Exchange Commission on November 26, 2019 Registration No.

November 25, 2019 10-K

our Annual Report on Form 10-K for the fiscal year ended September 30, 2019 filed with the Securities and Exchange Commission on November 25, 2019

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ý Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Fiscal Year Ended September 30, 2019 or o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-38272 EVOQUA WATER TECHNOLOGIES CORP. (Exact name of registrant

November 25, 2019 EX-21.1

List of subsidiaries of Evoqua Water Technologies Corp.

Exhibit 21.1 Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Ownership if Less Than 100% ATG Environmental Holdco Limited United Kingdom ATG Environmental Limited United Kingdom ATG R&D Limited United Kingdom ATG UV Technology Limited United Kingdom CarbonAir Environmental Systems, Inc. Minnesota Evoqua Pension Trustees Limited United Kingdom Evoqua Treated Water Outsou

November 25, 2019 EX-4.2

Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934.

Exhibit 4.2 Description of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 As of November 25, 2019, Evoqua Water Technologies Corp., a Delaware corporation, had one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): Common Stock, par value $.01 per share (the “Common Stock”). The following sum

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