ATIP / ATI Physical Therapy, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

ATI Physical Therapy, Inc.
US ˙ OTCPK ˙ US00216W1099
HINDI NA ACTIVE ANG SIMBONG ITO

Mga Batayang Estadistika
CIK 1815849
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 ATI Physical Therapy, Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
March 18, 2025 EX-19.1

ATI Physical Therapy, Inc. Insider Trading and Regulation FD Policy

Exhibit 19.1 ATI Physical Therapy, Inc. Insider Trading and Regulation FD Policy I.INTRODUCTION A.Purpose The purpose of this Insider Trading and Regulation FD Policy (this “Policy”) is to help ATI Physical Therapy, Inc. and its subsidiaries (the “Company”) comply with U.S. federal and state securities laws, as well as similar laws in other countries where the Company does business, and to preserv

March 18, 2025 EX-10.27

FIRST AMENDMENT TO LONG-TERM CASH INCENTIVE AWARD

Exhibit 10.27 FIRST AMENDMENT TO LONG-TERM CASH INCENTIVE AWARD This First Amendment (the “Amendment”) to that certain Long-Term Cash Incentive Award Agreement dated April 1, 2024 (the “Original Agreement”), a copy of which is included as Exhibit A to this Agreement, by ATI Physical Therapy, Inc. (the “Company”), and Christopher Cox, is made as of February 18, 2025 (the “Amendment Date”). The term

March 18, 2025 EX-10.26

[Signature page follows]

Exhibit 10.26 04/01/2024 CHRISTOPHER COX Via electronic mail Re: Long-Term Cash Incentive Award Dear CHRISTOPHER COX : On behalf of ATI Physical Therapy (“ATI” or the “Company”), this letter (this “Agreement”) outlines the terms and conditions of your Long-Term Cash Incentive Award. This award is being granted in lieu of the specified restricted stock and options grant contemplated for 2024 by Sec

March 18, 2025 EX-4.1

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED As of the date of the Annual Report on Form 10-K of which this Exhibit is a part, ATI Physical Therapy, Inc. (the “Company” or “ATI”) had two classes of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Excha

March 18, 2025 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 December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Therap

March 18, 2025 EX-10.25

[Signature page follows]

Exhibit 10.25 April 1, 2024 SHARON A VITTI Via electronic mail Re: Long-Term Cash Incentive Award Dear SHARON A VITTI : On behalf of ATI Physical Therapy (“ATI” or the “Company”), this letter (this “Agreement”) outlines the terms and conditions of your Long-Term Cash Incentive Award. This award is being granted in lieu of the specified restricted stock and options grant contemplated for 2024 by Se

March 17, 2025 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

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. 001-39439 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in i

March 11, 2025 POS AM

As filed with the Securities and Exchange Commission on March 10, 2025

As filed with the Securities and Exchange Commission on March 10, 2025 Registration No.

March 11, 2025 S-8 POS

As filed with the Securities and Exchange Commission on March 10, 2025

As filed with the Securities and Exchange Commission on March 10, 2025 Registration No.

March 11, 2025 POS AM

As filed with the Securities and Exchange Commission on March 10, 2025

As filed with the Securities and Exchange Commission on March 10, 2025 Registration No.

March 11, 2025 S-8 POS

As filed with the Securities and Exchange Commission on March 10, 2025

As filed with the Securities and Exchange Commission on March 10, 2025 Registration No.

March 11, 2025 POS AM

As filed with the Securities and Exchange Commission on March 10, 2025

As filed with the Securities and Exchange Commission on March 10, 2025 Registration No.

March 4, 2025 EX-10.1

FOURTH AMENDMENT TO NOTE PURCHASE AGREEMENT

Exhibit 10.1 FOURTH AMENDMENT TO NOTE PURCHASE AGREEMENT FOURTH AMENDMENT TO NOTE PURCHASE AGREEMENT, dated as of March 3, 2025 (this “Amendment”), by and among ATI Physical Therapy, Inc., a Delaware corporation (the “Issuer”), Wilco Holdco, Inc., a Delaware corporation (“Intermediate Parent”), Wilco Intermediate Holdings, Inc., a Delaware corporation (“Holdings”), ATI Holdings Acquisition, Inc.,

March 4, 2025 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 3, 2025 ATI Physical Therap

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 3, 2025 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

March 4, 2025 EX-99.1

ATI Physical Therapy Closes $26 Million 8% Second Lien PIK Convertible Note Financing

Exhibit 99.1 FOR IMMEDIATE RELEASE ATI Physical Therapy Closes $26 Million 8% Second Lien PIK Convertible Note Financing Downers Grove, Ill. – March 4, 2025 – ATI Physical Therapy, Inc. (OTCMKTS: ATIP) (“ATI” or the “Company”), a nationally recognized outpatient physical therapy provider in the United States, announced today that on March 3, 2025, it closed a $26 million 8% second lien PIK convert

January 16, 2025 EX-99.(A)(5)(D)

ATI Physical Therapy Announces the Termination of its Tender Offer to Purchase Up to 1,650,000 Shares of its Class A Common Stock at a Purchase Price of $2.85 per Share

Exhibit (a)(5)(D) FOR IMMEDIATE RELEASE ATI Physical Therapy Announces the Termination of its Tender Offer to Purchase Up to 1,650,000 Shares of its Class A Common Stock at a Purchase Price of $2.

January 16, 2025 SC TO-I/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 Schedule TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 to Schedule TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (Issuer) and Filing Person (Offeror)) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 00216W208 (CUSIP Number of Cl

January 14, 2025 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): January 13, 2025 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (C

January 8, 2025 8-K

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 8, 2025 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (Co

January 8, 2025 SC TO-I/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 Schedule TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 to Schedule TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (Issuer) and Filing Person (Offeror)) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 00216W208 (CUSIP Number of Cl

January 3, 2025 EX-99.(A)(5)(C)

IMPORTANT INFORMATION ABOUT THE OFFER TO PURCHASE FOR CASH CLASS A COMMON STOCK OF ATI PHYSICAL THERAPY, INC. $2.85 per share pursuant to the offer to purchase dated December 17, 2024 Tendering is Easy!

Exhibit (a)(5)(C) IMPORTANT INFORMATION ABOUT THE OFFER TO PURCHASE FOR CASH CLASS A COMMON STOCK OF ATI PHYSICAL THERAPY, INC.

January 3, 2025 SC TO-I/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 Schedule TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 to Schedule TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (Issuer) and Filing Person (Offeror)) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 00216W208 (CUSIP Number of Cl

December 23, 2024 8-K

Current Report

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 18, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (

December 17, 2024 EX-99.(A)(1)(D)

Offer to Purchase for Cash by ATI PHYSICAL THERAPY, INC. of Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share Pursuant to the Offer to Purchase dated December 17, 2024

 Exhibit (a)(1)(D) Offer to Purchase for Cash by ATI PHYSICAL THERAPY, INC. of Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share Pursuant to the Offer to Purchase dated December 17, 2024 THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, EASTERN TIME, AT THE END OF JANUARY 15, 2025, UNLESS THE OFFER IS EXTENDED OR WITHDRAWN (SUCH

December 17, 2024 EX-FILING FEES

Calculation of Filing Fee Table SC TO (Form Type) ATI Physical Therapy, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Transaction Valuation

Exhibit 107 Calculation of Filing Fee Table SC TO (Form Type) ATI Physical Therapy, Inc.

December 17, 2024 EX-99.(A)(1)(B)

LETTER OF TRANSMITTAL For Tender of Shares of Class A Common Stock of ATI PHYSICAL THERAPY, INC. Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 per Share Pursuant to the Offer to Purchase, Dated December 17, 2024

 Exhibit (a)(1)(B) LETTER OF TRANSMITTAL For Tender of Shares of Class A Common Stock of ATI PHYSICAL THERAPY, INC.

December 17, 2024 EX-99.(A)(5)(A)

ATI Physical Therapy Announces Commencement of Tender Offer to Purchase Up to 1,650,000 Shares of its Class A Common Stock at a Purchase Price of $2.85 per Share

 Exhibit (a)(5)(A) FOR IMMEDIATE RELEASE ATI Physical Therapy Announces Commencement of Tender Offer to Purchase Up to 1,650,000 Shares of its Class A Common Stock at a Purchase Price of $2.

December 17, 2024 EX-10.4

AMENDMENT NO. 3 TO CREDIT AGREEMENT AMENDMENT NO. 1 TO PARENT LOAN GUARANTY

Exhibit 10.4 AMENDMENT NO. 3 TO CREDIT AGREEMENT AND AMENDMENT NO. 1 TO PARENT LOAN GUARANTY AMENDMENT NO. 3 TO CREDIT AGREEMENT AND AMENDMENT NO. 1 TO PARENT LOAN GUARANTY, dated as of December 12, 2024 (this “Agreement”), by and among ATI Holdings Acquisition, Inc., a Delaware corporation (the “Borrower”), Wilco Intermediate Holdings, Inc., a Delaware corporation (“Holdings”), each Parent Loan G

December 17, 2024 EX-99.1

Joint Filing Agreement

EX-99.1 2 d920068dex991.htm EX-99.1 Exhibit 1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to shares of Class A Common Stock, $0.0001 par value per share, of ATI Physical Therapy,

December 17, 2024 EX-10.1

THIRD AMENDMENT TO NOTE PURCHASE AGREEMENT

Exhibit 10.1 THIRD AMENDMENT TO NOTE PURCHASE AGREEMENT THIRD AMENDMENT TO NOTE PURCHASE AGREEMENT, dated as of December 12, 2024 (this “Amendment”), by and among ATI Physical Therapy, Inc., a Delaware corporation (the “Issuer”), Wilco Holdco, Inc., a Delaware corporation (“Intermediate Parent”), Wilco Intermediate Holdings, Inc., a Delaware corporation (“Holdings”), ATI Holdings Acquisition, Inc.

December 17, 2024 EX-3.1

FIRST CERTIFICATE OF AMENDMENT FIRST AMENDED AND RESTATED CERTIFICATE OF DESIGNATION SERIES A SENIOR PREFERRED STOCK ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON DECEMBER 17, 2024

Exhibit 3.1 FIRST CERTIFICATE OF AMENDMENT TO FIRST AMENDED AND RESTATED CERTIFICATE OF DESIGNATION OF SERIES A SENIOR PREFERRED STOCK OF ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON DECEMBER 17, 2024 Pursuant to Section 151 of the General Corporation Law of the State of Delaware Pursuant to Section 151 of the General Corporation law of the State of Delaw

December 17, 2024 EX-10.3

ESCROW AGREEMENT

Exhibit 10.3 STRICTLY CONFIDENTIAL Execution Version ESCROW AGREEMENT This Escrow Agreement, dated this 12th day of December, 2024 (the “Escrow Agreement”), is entered into by and among ATI Physical Therapy, Inc., a Delaware Corporation (“ATI”), Caspian Capital Solutions Fund L.P. (“Caspian”), Onex Capital Solutions Holdings, LP (“Onex,” and together with Caspian, the “Purchaser Parties,” and each

December 17, 2024 EX-99.(D)

NON-TENDER AGREEMENT

 Exhibit (d) NON-TENDER AGREEMENT This NON-TENDER AGREEMENT (as the same may be amended from time to time in accordance with its terms, this “Agreement”), dated as of December 14, 2024, is entered into by and among the persons listed on Schedule A hereto (each a “Stockholder” and collectively, the “Stockholders”), in each such person’s capacity as a stockholder of ATI Physical Therapy, Inc.

December 17, 2024 EX-99.(A)(1)(A)

ATI PHYSICAL THERAPY, INC. Offer to Purchase for Cash up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share

TABLE OF CONTENTS  Exhibit (a)(1)(A) ATI PHYSICAL THERAPY, INC. Offer to Purchase for Cash up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, EASTERN TIME, AT THE END OF JANUARY 15, 2025, UNLESS THE OFFER IS EXTENDED OR WITHDRAWN (SUCH DATE, AS IT MAY BE EXTENDED, THE “EXPIRATION D

December 17, 2024 EX-99.(A)(1)(C)

NOTICE OF GUARANTEED DELIVERY (Not to be Used for Signature Guarantee) To Tender Shares of Class A Common Stock by ATI Physical Therapy, Inc. of Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share Pursuant to the O

 Exhibit (a)(1)(C) NOTICE OF GUARANTEED DELIVERY (Not to be Used for Signature Guarantee) To Tender Shares of Class A Common Stock by ATI Physical Therapy, Inc.

December 17, 2024 EX-99.(A)(1)(F)

Notice of Offer to Purchase for Cash by ATI PHYSICAL THERAPY, INC. of Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share

 Exhibit (a)(1)(F) This announcement is neither an offer to purchase nor a solicitation of an offer to sell Shares (as defined below).

December 17, 2024 EX-99.(A)(1)(E)

Offer to Purchase for Cash by ATI PHYSICAL THERAPY, INC. of Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share Pursuant to the Offer to Purchase dated December 17, 2024

 Exhibit (a)(1)(E) Offer to Purchase for Cash by ATI PHYSICAL THERAPY, INC. of Up to 1,650,000 Shares of its Class A Common Stock at an Offer Price of $2.85 Per Share Pursuant to the Offer to Purchase dated December 17, 2024 THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, EASTERN TIME, AT THE END OF JANUARY 15, 2025, UNLESS THE OFFER IS EXTENDED OR WITHDRAWN (SUCH

December 17, 2024 SC TO-I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (Issuer) and Fili

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 ATI PHYSICAL THERAPY, INC. (Name of Subject Company (Issuer) and Filing Person (Offeror)) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 00216W208 (CUSIP Number of Class of Securities)

December 17, 2024 EX-99.(A)(5)(B)

2

 Exhibit (a)(5)(B) ATIP Tender Offer Employee Letter From: Sharon Vitti To: All Employees Subject: Strengthening ATI’s Financial Foundation Team, As we continue executing our strategic plan and positioning ATI for long-term growth, a key objective is to strengthen our financial foundation and simplify our capital structure.

December 17, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, 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, 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 12, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

December 17, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / ADVENT INTERNATIONAL CORP/MA - SC 13D/A Activist Investment

SC 13D/A 1 d920068dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* ATI PHYSICAL THERAPY, INC. (Name of Issuer) Class A Common Stock, $0.0001 par value per share (Title of Class of Securities) 00216W109 (CUSIP Number) Amanda McGrady Morrison General Counsel and Chief Legal Officer A

December 4, 2024 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange ("NYSE" or the "Exchange") hereby notifies the Securities and Exchange Commission (the "Commission") of its intention to remove the entire class of Class A common stock (the "Common Stock), of ATI Physical Therapy, Inc.

December 3, 2024 8-K

Regulation FD Disclosure, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, 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): December 3, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (C

December 3, 2024 EX-99.1

ATI Physical Therapy Receives Delisting Notice From the New York Stock Exchange

Exhibit 99.1 FOR IMMEDIATE RELEASE ATI Physical Therapy Receives Delisting Notice From the New York Stock Exchange BOLINGBROOK, Ill – December 3, 2024 – ATI Physical Therapy, Inc. (NYSE: ATIP) (“ATI” or the “Company”), a nationally recognized outpatient physical therapy provider in the United States, today announced that it received notification from the New York Stock Exchange (“NYSE”) indicating

December 2, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / FIG Buyer GP, LLC - SCHEDULE 13D, AMENDMENT NO. 5 Activist Investment

SC 13D/A 1 sc13da5.htm SCHEDULE 13D, AMENDMENT NO. 5 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) David N. Brooks Fortress Investment Group LLC 1345 Avenue of the

November 25, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / FIG Buyer GP, LLC - SCHEDULE 13D, AMENDMENT NO. 4 Activist Investment

SC 13D/A 1 sc13da4.htm SCHEDULE 13D, AMENDMENT NO. 4 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) David N. Brooks Fortress Investment Group LLC 1345 Avenue of the

November 18, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / FIG Buyer GP, LLC - SCHEDULE 13D, AMENDMENT NO. 3 Activist Investment

SC 13D/A 1 sc13da3.htm SCHEDULE 13D, AMENDMENT NO. 3 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) David N. Brooks Fortress Investment Group LLC 1345 Avenue of the

November 8, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / FIG Buyer GP, LLC - SCHEDULE 13D - AMENDMENT NO. 2 Activist Investment

SC 13D/A 1 sc13da2.htm SCHEDULE 13D - AMENDMENT NO. 2 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) David N. Brooks Fortress Investment Group LLC 1345 Avenue of the

November 8, 2024 EX-99.6

JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K)

EX-99.6 2 ex99-6.htm EXHIBIT 99.6 - JOINT FILING AGREEMENT Exhibit 99.6 JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned with respect to the Class A Common Stock, par value $0.0001 per share, of ATI Physical Therapy, Inc., and that all subsequent amendments to this state

November 4, 2024 EX-99.1

ATI Physical Therapy Reports Third Quarter 2024 Results

ATI Physical Therapy Reports Third Quarter 2024 Results BOLINGBROOK, IL – November 4, 2024 – ATI Physical Therapy, Inc.

November 4, 2024 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physic

November 4, 2024 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 4, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (C

October 2, 2024 EX-10.1

SECOND AMENDMENT TO NOTE PURCHASE AGREEMENT

Exhibit 10.1 EXECUTION VERSION SECOND AMENDMENT TO NOTE PURCHASE AGREEMENT SECOND AMENDMENT TO NOTE PURCHASE AGREEMENT, dated as of October 2, 2024 (this “Amendment”), by and among ATI Physical Therapy, Inc., a Delaware corporation (the “Issuer”), Wilco Holdco, Inc., a Delaware corporation (“Intermediate Parent”), Wilco Intermediate Holdings, Inc., a Delaware corporation (“Holdings”), ATI Holdings

October 2, 2024 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, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 2, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commiss

August 5, 2024 EX-99.1

ATI Physical Therapy Reports Second Quarter 2024 Results Drove Continued Growth in Visits, Rate per Visit, Revenue and Adjusted EBITDA Advanced Company's Capacity to Expand Patient Access to High-Quality Care

ATI Physical Therapy Reports Second Quarter 2024 Results Drove Continued Growth in Visits, Rate per Visit, Revenue and Adjusted EBITDA Advanced Company's Capacity to Expand Patient Access to High-Quality Care BOLINGBROOK, IL – August 5, 2024 – ATI Physical Therapy, Inc.

August 5, 2024 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 5, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (Com

August 5, 2024 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Th

June 20, 2024 EX-99.1

UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF ILLINOIS

Exhibit 99.1 UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF ILLINOIS In re ATI Physical Therapy, Inc. Shareholder Derivative Litigation Case No. 1:21-cv-06415 This Document Relates To: DEMAND FOR JURY TRIAL ALL ACTIONS [Caption continued on the next page] IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE PHILLIP GOLDSTEIN, Plaintiff, v. FORTRESS ACQUISITION SPONSOR II, LLC, LABEED DIAB, JOSEPH

June 20, 2024 EX-99.3

ATI Physical Therapy Provides Settlement Notice

Exhibit 99.3 ATI Physical Therapy Provides Settlement Notice BOLINGBROOK, IL – June 20, 2024 – ATI Physical Therapy, Inc. (NYSE: ATIP), a nationally recognized outpatient physical therapy provider in the United States, today provided a settlement notice, which is attached to this press release and has been posted to the investor relations section of ATI’s website at Derivative Settlement. About AT

June 20, 2024 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): June 20, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

June 20, 2024 EX-99.2

UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF ILLINOIS

Exhibit 99.2 UNITED STATES DISTRICT COURT NORTHERN DISTRICT OF ILLINOIS In re ATI Physical Therapy, Inc. Shareholder Derivative Litigation Case No. 1:21-cv-06415 This Document Relates To: ALL ACTIONS DEMAND FOR JURY TRIAL [Caption continued on the next page] IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE PHILLIP GOLDSTEIN, Plaintiff, v. FORTRESS ACQUISITION SPONSOR II, LLC, LABEED DIAB, JOSEPH

June 12, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): June 12, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (Comm

June 12, 2024 EX-10.4

Amendment No. 3 to the ATI Physical Therapy, Inc. 2021 EQUITY INCENTIVE PLAN As adopted by resolution of the Board of Directors on April 25, 2024

Exhibit 10.4 Amendment No. 3 to the ATI Physical Therapy, Inc. 2021 EQUITY INCENTIVE PLAN As adopted by resolution of the Board of Directors on April 25, 2024 The ATI Physical Therapy Inc. 2021 Equity Incentive Plan (“Plan”) is hereby amended by replacing Section 4.1 with the following: 4.1 Number of Shares Reserved. Subject to adjustment as provided in Section 4.2 and Section 4.4 hereof, the tota

June 12, 2024 EX-99.1

JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K)

EX-99.1 2 dp212780ex9901.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) The undersigned acknowledge and agree that the foregoing Statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this Statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint

June 12, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Marathon Asset Management GP, L.L.C. - FORM SC 13D/A Activist Investment

SC 13D/A 1 dp212780sc13da-2.htm FORM SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 2) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) c/o Marathon Asset Management, L.P. 1 Bryant Park, 38th F

May 21, 2024 SC 13D

ATIPW / ATI Physical Therapy, Inc. - Equity Warrant / FIG Buyer GP, LLC - SCHEDULE 13D Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) David N. Brooks Fortress Investment Group LLC 1345 Avenue of the Americas, 46th Floor New York, NY 10105 (212) 798-6100

May 21, 2024 EX-99

JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K)

EX-99 2 ex991.htm EXHIBIT 99.1 JOINT FILING AGREEMENT Exhibit 99.1 JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned with respect to the Class A Common Stock, par value $0.0001 per share, of ATI Physical Therapy, Inc., and that all subsequent amendments to this statement

May 14, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): May 13, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (Commi

May 10, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Knighthead Capital Management, LLC - FORM SC 13D/A Activist Investment

SC 13D/A 1 dp211100sc13da-6.htm FORM SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 6) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280

May 10, 2024 EX-99.1

Joint Filing Agreement among the Reporting Persons, dated as of May 10, 2024.

EX-99.1 2 dp211100ex9901.htm EXHIBIT 99.1 Exhibit 99.1 SCHEDULE 13D JOINT FILING AGREEMENT In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13D to which this joint filing agreement is attached, and any subsequent amendments ther

May 6, 2024 EX-99.1

ATI Physical Therapy Reports First Quarter 2024 Results Disciplined Execution of Clinic Operations Drove Continued Growth People Strategies and Culture Refresh Efforts Result in Exceptional Therapist Retention

ATI Physical Therapy Reports First Quarter 2024 Results Disciplined Execution of Clinic Operations Drove Continued Growth People Strategies and Culture Refresh Efforts Result in Exceptional Therapist Retention BOLINGBROOK, IL – May 6, 2024 – ATI Physical Therapy, Inc.

May 6, 2024 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical T

May 6, 2024 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 6, 2024 ATI Physical Therapy,

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 6, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (Commis

April 26, 2024 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

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 Filed by the Registrant x Filed by a Party other than the Registrant  o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive Proxy Stat

April 26, 2024 DEFA14A

DEFA14A

Your Vote Counts! *Please check the meeting materials for any special requirements for meeting attendance.

April 26, 2024 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

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 Filed by the Registrant x Filed by a Party other than the Registrant  o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Stat

March 15, 2024 8-K

Current Report

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 12, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (Com

February 27, 2024 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 December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Therap

February 27, 2024 EX-97.1

ATI PHYSICAL THERAPY, INC. CLAWBACK POLICY

Exhibit 97.1 ATI PHYSICAL THERAPY, INC. CLAWBACK POLICY Introduction The Board of Directors (the “Board”) of ATI Physical Therapy, Inc.’(the “Company”) believes that it is in the best interests of the Company and its stockholders to maintain a culture that emphasizes integrity and accountability and that reinforces the Company's pay-for-performance compensation philosophy. The Board has, therefore

February 27, 2024 EX-19.1

ATI Physical Therapy, Inc. Insider Trading and Regulation FD Policy

Exhibit 19.1 ATI Physical Therapy, Inc. Insider Trading and Regulation FD Policy I.INTRODUCTION A.Purpose The purpose of this Insider Trading and Regulation FD Policy (this “Policy”) is to help ATI Physical Therapy, Inc. and its subsidiaries (the “Company”) comply with U.S. federal and state securities laws, as well as similar laws in other countries where the Company does business, and to preserv

February 27, 2024 EX-4.1

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED As of the date of the Annual Report on Form 10-K of which this Exhibit is a part, ATI Physical Therapy, Inc. (the “Company” or “ATI”) had two classes of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Excha

February 27, 2024 EX-21.1

Subsidiary Name

Exhibit 21.1 Subsidiary Name Jurisdiction of Organization / Incorporation Adient Alaska, LLC Delaware Advanced Physical Therapy, LLC Indiana Apple Physical Therapy, LLC Washington Athletic & Therapeutic Institute of Bourbonnais, LLC Illinois Athletic & Therapeutic Institute of Milwaukee, LLC Illinois Athletic & Therapeutic Institute of Naperville, LLC Illinois ATI Holdings Acquisition, Inc. Delawa

February 26, 2024 EX-99.1

ATI Physical Therapy Reports Fourth Quarter and Full Year 2023 Results Refreshed Corporate Leadership and Dedicated Field Team Expand Patient Access, Drove Sequential Growth every Quarter in Topline Revenue and Visits per Day Accelerated Execution of

ATI Physical Therapy Reports Fourth Quarter and Full Year 2023 Results Refreshed Corporate Leadership and Dedicated Field Team Expand Patient Access, Drove Sequential Growth every Quarter in Topline Revenue and Visits per Day Accelerated Execution of Clinic Operations and Geographic Footprint Strategies, Drove Sequential Improvement every Quarter in Revenue per Clinic and Visits per Day per Clinic Beat 2023 Revenue and Adjusted EBITDA1 Guidance BOLINGBROOK, IL – February 26, 2024 – ATI Physical Therapy, Inc.

February 26, 2024 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): February 26, 2024 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (

February 8, 2024 EX-99.1

Joint Filing Agreement among the Reporting Persons, dated as of February 8, 2024.

EX-99.1 2 dp206493ex9901.htm EXHIBIT 99.1 Exhibit 99.1 SCHEDULE 13D JOINT FILING AGREEMENT In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13D to which this joint filing agreement is attached, and any subsequent amendments ther

February 8, 2024 EX-99.1

Joint Filing Agreement among the Reporting Persons, dated as of February 8, 2024.

EX-99.1 2 dp206494ex9901.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) The undersigned acknowledge and agree that the foregoing Statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this Statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint

February 8, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Marathon Asset Management GP, L.L.C. - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 1) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) c/o Marathon Asset Management, L.P. 1 Bryant Park, 38th Floor New York, NY 10036 (212) 500-3000 (Name,

February 8, 2024 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Knighthead Capital Management, LLC - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 5) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280 Park Avenue, 22nd Floor New York, NY 10017 (21

December 20, 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): December 20, 2023 ATI Physical Th

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, 2023 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (

November 6, 2023 EX-99.1

ATI Physical Therapy Reports Third Quarter 2023 Results Drove Continued Growth in Visits, Rate per Visit, Revenue and Adjusted EBITDA Reflecting Continuing Execution of Transformation Initiatives and Strong Demand for Physical Therapy Robust Therapis

ATI Physical Therapy Reports Third Quarter 2023 Results Drove Continued Growth in Visits, Rate per Visit, Revenue and Adjusted EBITDA Reflecting Continuing Execution of Transformation Initiatives and Strong Demand for Physical Therapy Robust Therapist Hiring and Retention Results in Growing Clinician Base Advancing Company’s Capacity to Expand Patient Access to High-Quality Care BOLINGBROOK, IL – November 6, 2023 – ATI Physical Therapy, Inc.

November 6, 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): November 6, 2023 ATI Physical The

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): November 6, 2023 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 001-39439 (C

November 6, 2023 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physic

August 18, 2023 CORRESP

ATI Physical Therapy, Inc. 790 Remington Boulevard Bolingbrook, Illinois 60440 August 18, 2023

ATI Physical Therapy, Inc. 790 Remington Boulevard Bolingbrook, Illinois 60440 August 18, 2023 VIA EDGAR AND EMAIL Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE Washington, D.C. 20549-3561 Attn: Conlon Danberg Re: ATI Physical Therapy, Inc. Registration Statement on Form S-3 (File No. 333-273843) Ladies and Gentlemen: We refer to the above referenced registratio

August 9, 2023 EX-FILING FEES

Calculation of Filing Fee Tables FORM S-3 (Form Type) ATI Physical Therapy, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107 Calculation of Filing Fee Tables FORM S-3 (Form Type) ATI Physical Therapy, Inc.

August 9, 2023 S-3

As filed with the Securities and Exchange Commission on August 9, 2023

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 9, 2023 Registration No.

August 8, 2023 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Th

August 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): August 7, 2023 ATI PHYSICAL THERA

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 7, 2023 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

August 7, 2023 EX-99.1

ATI Physical Therapy Reports Second Quarter 2023 Results Drove Growth in Visits per Day, Rate per Visit, Revenue and Adjusted EBITDA Reflecting Continued Execution of Transformation Initiatives and Strong Demand for Physical Therapy Improved Provider

Exhibit 99.1 ATI Physical Therapy Reports Second Quarter 2023 Results Drove Growth in Visits per Day, Rate per Visit, Revenue and Adjusted EBITDA Reflecting Continued Execution of Transformation Initiatives and Strong Demand for Physical Therapy Improved Provider Productivity and Retention Provides 2023 Revenue and Adjusted EBITDA1 Guidance BOLINGBROOK, IL – August 7, 2023 – ATI Physical Therapy,

July 3, 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): June 28, 2023 ATI PHYSICAL THERAP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act Of 1934 Date of Report (Date of earliest event reported): June 28, 2023 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

July 3, 2023 EX-99.1

ATI Physical Therapy Receives NYSE Non-Compliance Letter Regarding Market Capitalization Requirements

Exhibit 99.1 ATI Physical Therapy Receives NYSE Non-Compliance Letter Regarding Market Capitalization Requirements BOLINGBROOK, IL – JULY 3, 2023 – ATI Physical Therapy, Inc. (“ATI” or the “Company”) (NYSE: ATIP), a nationally recognized outpatient physical therapy provider in the United States, today announced that on June 28, 2023, the Company received a written notice (the “Notice”) from the Ne

June 27, 2023 SC 13D

ATIP / ATI Physical Therapy Inc - Class A / CASPIAN CAPITAL LP - SC 13D Activist Investment

SC 13D SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Amendment No. )* Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) Dominick Cromartie c/o Caspian Capital, LP 10 East 53rd Street, 35th Floor, New York, New York 10022 (212) 826-6

June 27, 2023 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 EXHIBIT 99.1 JOINT FILING AGREEMENT THIS JOINT FILING AGREEMENT is entered into as of June 26, 2023, by and among the parties hereto. The undersigned hereby agree that the Statement on Schedule 13D with respect to the Class A Common Stock, par value $0.0001 per share, of ATI Physical Therapy, Inc., a Delaware corporation, and any amendment thereafter signed by each of the undersigned shall

June 26, 2023 SC 13D

ATIP / ATI Physical Therapy Inc - Class A / Marathon Asset Management GP, L.L.C. - FORM SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) c/o Marathon Asset Management, L.P. 1 Bryant Park, 38th Floor New York, NY 10036 (212) 500-3000 (Name, Address and Telephon

June 26, 2023 EX-99.1

JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K)

JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) The undersigned acknowledge and agree that the foregoing Statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this Statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.

June 26, 2023 SC 13D

ATIP / ATI Physical Therapy Inc - Class A / ONEX CORP - FORM SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) Andrea E. Daly, Esq. c/o Onex Corporation 161 Bay Street P.O. Box 700 Toronto, ON, Canada, M5J 2S1 +1 (416) 362-7711 (Name,

June 26, 2023 EX-99.1

JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K)

Exhibit 99.1 JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) The undersigned acknowledge and agree that the foregoing Statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this Statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknow

June 22, 2023 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange ("NYSE" or the "Exchange") hereby notifies the Securities and Exchange Commission (the "Commission") of its intention to remove the entire class of Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.

June 20, 2023 EX-99.1

SCHEDULE 13D JOINT FILING AGREEMENT

EX-99.1 2 dp195476ex9901.htm EXHIBIT 99.1 Exhibit 99.1 SCHEDULE 13D JOINT FILING AGREEMENT In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13D to which this joint filing agreement is attached, and any subsequent amendments ther

June 20, 2023 SC 13D/A

ATIP / ATI Physical Therapy Inc - Class A / Knighthead Capital Management, LLC - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 4) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W208 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280 Park Avenue, 22nd Floor New York, NY 10017 (21

June 15, 2023 EX-99.1

ATI Physical Therapy Completes Transaction Support Agreement to Increase Liquidity and Financial Flexibility

Exhibit 99.1 ATI Physical Therapy Completes Transaction Support Agreement to Increase Liquidity and Financial Flexibility BOLINGBROOK, IL – JUNE 15, 2023 – ATI Physical Therapy, Inc. (“ATI” or the “Company”) (NYSE: ATIP), a nationally recognized outpatient physical therapy provider in the United States, today announced that it has completed its previously disclosed Transaction Support Agreement (t

June 15, 2023 EX-3.2

CERTIFICATE OF DESIGNATION SERIES B PREFERRED STOCK ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON JUNE 15, 2023 Pursuant to Section 151 of the General Corporation Law of the State of Delaware

Exhibit 3.2 CERTIFICATE OF DESIGNATION OF SERIES B PREFERRED STOCK OF ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON JUNE 15, 2023 Pursuant to Section 151 of the General Corporation Law of the State of Delaware Pursuant to Section 151 of the General Corporation Law of the State of Delaware (the “DGCL”), ATI Physical Therapy, Inc., a corporation duly organiz

June 15, 2023 EX-10.7

First Amendment to Note Purchase Agreement (filed as Exhibit 10.7 to the Issuer’s Current Report on Form 8-K filed on June 15, 2023 and incorporated herein by reference).

EX-10.7 7 brhc20054312ex10-7.htm EXHIBIT 10.7 Exhibit 10.7 Execution Version FIRST AMENDMENT TO NOTE PURCHASE AGREEMENT FIRST AMENDMENT TO NOTE PURCHASE AGREEMENT, dated as of June 15, 2023 (this “Amendment”), by and among ATI Physical Therapy, Inc., a Delaware corporation (the “Issuer”), Wilco Holdco, Inc., a Delaware corporation (“Intermediate Parent”), Wilco Intermediate Holdings, Inc., a Delaw

June 15, 2023 EX-10.3

CONSENT AGREEMENT TO AMENDMENT NO. 2 TO CREDIT AGREEMENT

EX-10.3 4 brhc20054312ex10-3.htm EXHIBIT 10.3 Exhibit 10.3 Execution Version CONSENT AGREEMENT TO AMENDMENT NO. 2 TO CREDIT AGREEMENT THIS CONSENT AGREEMENT, dated as of June 15, 2023 (this “Consent”), to Amendment No. 2 to Credit Agreement, dated as of April 17, 2023 (the “Second Amendment Agreement”), by and among ATI Holdings Acquisition, Inc., a Delaware corporation (the “Borrower”), Wilco Int

June 15, 2023 EX-3.1

FIRST AMENDED AND RESTATED CERTIFICATE OF DESIGNATION SERIES A SENIOR PREFERRED STOCK ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON JUNE 15, 2023 Pursuant to Section 151 of the General Corporation Law of the

Exhibit 3.1 FIRST AMENDED AND RESTATED CERTIFICATE OF DESIGNATION OF SERIES A SENIOR PREFERRED STOCK OF ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON JUNE 15, 2023 Pursuant to Section 151 of the General Corporation Law of the State of Delaware Pursuant to Section 151 of the General Corporation Law of the State of Delaware (the “DGCL”), ATI Physical Therapy

June 15, 2023 EX-10.6

ATI PHYSICAL THERAPY, INC. REGISTRATION RIGHTS AGREEMENT

EX-10.6 6 brhc20054312ex10-6.htm EXHIBIT 10.6 Exhibit 10.6 ATI PHYSICAL THERAPY, INC. REGISTRATION RIGHTS AGREEMENT PREAMBLE THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made as of June 15, 2023 (the “Effective Date”) by and among ATI Physical Therapy, Inc., a Delaware corporation (the “Company”), and the other parties signatory hereto and any additional parties identified on the signa

June 15, 2023 EX-10.5

FIRST AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT ATI PHYSICAL THERAPY, INC. THE HOLDERS PARTY HERETO FROM TIME TO TIME Dated as of June 15, 2023 FIRST AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT

EX-10.5 5 brhc20054312ex10-5.htm EXHIBIT 10.5 Exhibit 10.5 FIRST AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT AMONG ATI PHYSICAL THERAPY, INC. AND THE HOLDERS PARTY HERETO FROM TIME TO TIME Dated as of June 15, 2023 FIRST AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT This FIRST AMENDMENT TO INVESTORS’ RIGHTS AGREEMENT (this “Amendment”), dated as of June 15, 2023, is made by and among ATI Physical Therapy,

June 15, 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): June 15, 2023 ATI Physical Therap

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2023 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

June 14, 2023 EX-99.1

Exhibit 99.1

Exhibit 99.1 BOLINGBROOK, Ill., June 14, 2023 /PRNewswire/ - ATI Physical Therapy, Inc. (NYSE: ATIP) ("ATI" or the "Company"), a nationally recognized outpatient physical therapy provider in the United States, today announced that its Board of Directors has approved a one-for-fifty (1-for-50) reverse stock split (the “Reverse Stock Split”) of ATI’s Class A common stock, par value $0.0001 per share

June 14, 2023 EX-3.1

CERTIFICATE OF AMENDMENT to the THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION ATI PHYSICAL THERAPY, INC.

Exhibit 3.1 CERTIFICATE OF AMENDMENT to the THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION of ATI PHYSICAL THERAPY, INC. ATI PHYSICAL THERAPY, INC., a corporation organized and existing under the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify as follows: FIRST: The name of the Corporation is ATI Physical Therapy, Inc. SECOND: The Corporation’s Th

June 14, 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: June 14, 2023 (Date of earliest event reported) ATI PHYSICAL THERA

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: June 14, 2023 (Date of earliest event reported) ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) DE 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commission Fil

June 13, 2023 EX-10.1

ATI Physical Therapy 2021 EQUITY INCENTIVE PLAN

Exhibit 10.1 ATI Physical Therapy 2021 EQUITY INCENTIVE PLAN 1. Purpose. The purpose of the ATI Physical Therapy 2021 Equity Incentive Plan is to further align the interests of eligible participants with those of the Company’s stockholders by providing incentive compensation opportunities tied to the performance of the Company and its Common Stock. The Plan is intended to advance the interests of

June 13, 2023 EX-3.1

THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION ATI PHYSICAL THERAPY, INC. June 13, 2023

Exhibit 3.1 THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ATI PHYSICAL THERAPY, INC. June 13, 2023 ATI Physical Therapy, Inc., a corporation organized and existing under the laws of the State of Delaware (the “Corporation”), DOES HEREBY CERTIFY AS FOLLOWS: 1. The name of the Corporation is “ATI Physical Therapy, Inc.” The Corporation was incorporated under the name Fortress Value Acqu

June 13, 2023 EX-10.3

Amendment No. 2 to the ATI Physical Therapy, Inc. 2021 EQUITY INCENTIVE PLAN As adopted by resolution of the Board of Directors on March 21, 2023

Exhibit 10.3 Amendment No. 2 to the   ATI Physical Therapy, Inc.   2021 EQUITY INCENTIVE PLAN   As adopted by resolution of the Board of Directors on March 21, 2023 The ATI Physical Therapy Inc. 2021 Equity Incentive Plan (“Plan”) is hereby amended by replacing Section 4.1 with the following: 4.1 Number of Shares Reserved. Subject to adjustment as provided in Section 4.2 and Section 4.4 hereof, th

June 13, 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: June 13, 2023 (Date of earliest event reported) ATI PHYSICAL THERA

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: June 13, 2023 (Date of earliest event reported) ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) DE 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commission Fil

June 13, 2023 EX-10.2

Amendment No. 1 to the ATI Physical Therapy, Inc. 2021 EQUITY INCENTIVE PLAN As adopted by resolution of the Board of Directors on April 13, 2022

Exhibit 10.2 Amendment No. 1 to the   ATI Physical Therapy, Inc.   2021 EQUITY INCENTIVE PLAN   As adopted by resolution of the Board of Directors on April 13, 2022 The ATI Physical Therapy Inc. 2021 Equity Incentive Plan (“Plan”) is hereby amended by replacing Section 4.1 with the following: 4.1 Number of Shares Reserved. Subject to adjustment as provided in Section 4.2 and Section 4.4 hereof, th

June 9, 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): June 9, 2023 ATI Physical Therapy

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 9, 2023 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commission

June 5, 2023 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)) ☐ Defi

May 8, 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): May 8, 2023 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commission

May 8, 2023 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical T

May 8, 2023 EX-99.1

ATI Physical Therapy Reports First Quarter 2023 Results Continued Execution of Transformation Initiatives Drove Growth in Net Revenue, Net Patient Revenue, Visits Per Day and Provider Productivity Capital Transactions to Increase Liquidity and Financ

Exhibit 99.1 ATI Physical Therapy Reports First Quarter 2023 Results Continued Execution of Transformation Initiatives Drove Growth in Net Revenue, Net Patient Revenue, Visits Per Day and Provider Productivity Capital Transactions to Increase Liquidity and Financial Flexibility Expected to Close in June 2023 BOLINGBROOK, IL – May 8, 2023 – ATI Physical Therapy (NYSE: ATIP) (“ATI” or the “Company”)

May 1, 2023 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

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 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)) ☒ D

May 1, 2023 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

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 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Stat

April 21, 2023 SC 13D/A

ATIP / ATI Physical Therapy Inc - Class A / ADVENT INTERNATIONAL CORP/MA - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Amendment No. 4 Under the Securities Exchange Act of 1934 ATI PHYSICAL THERAPY, INC. (Name of Issuer) Class A Common Stock, $0.0001 par value per share (Title of Class of Securities) 00216W109 (CUSIP Number) Copy to: Amanda McGrady Morrison General Counsel and Chief Legal Officer Advent International Corp

April 21, 2023 EX-10.3

Second Lien Note Purchase Agreement (filed as Exhibit 10.3 to the Issuer’s Current Report on Form 8-K filed on April 21, 2023 and incorporated herein by reference).

EXECUTION VERSION Exhibit 10.3 NOTE PURCHASE AGREEMENT Dated as of April 17, 2023 among ATI PHYSICAL THERAPY, INC. as the Issuer, WILCO HOLDCO, INC. as the Intermediate Parent, WILCO INTERMEDIATE HOLDINGS, INC., as Holdings, ATI HOLDINGS ACQUISITION, INC. as Opco, THE PURCHASERS PARTY HERETO, and WILMINGTON SAVINGS FUND SOCIETY, FSB, as Purchaser Representative ARTICLE 1 DEFINITIONS 1 Section 1.01

April 21, 2023 SC 13D/A

ATIP / ATI Physical Therapy Inc - Class A / Knighthead Capital Management, LLC - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 3) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280 Park Avenue, 22nd Floor New York, NY 10017 (21

April 21, 2023 EX-10.2

Amendment No. 2 to the Credit Agreement (filed as Exhibit 10.2 to the Issuer’s Current Report on Form 8-K filed on April 21, 2023 and incorporated herein by reference).

Exhibit 10.2 Execution Version AMENDMENT NO. 2 TO CREDIT AGREEMENT AMENDMENT NO. 2 TO CREDIT AGREEMENT, dated as of April 17, 2023 (this “Agreement”), by and among ATI Holdings Acquisition, Inc., a Delaware corporation (the “Borrower”), Wilco Intermediate Holdings, Inc., a Delaware corporation (“Holdings”), each Subsidiary Guarantor (as defined in the Existing Credit Agreement referred to below) p

April 21, 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 17, 2023 ATI Physical Thera

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 17, 2023 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

April 21, 2023 EX-10.1

Amended and Restated Transaction Support Agreement (filed as Exhibit 10.1 to the Issuer’s Current Report on Form 8-K filed on April 21, 2023 and incorporated herein by reference).

Exhibit 10.1 Execution Version THIS AMENDED & RESTATED TRANSACTION SUPPORT AGREEMENT IS NOT AND SHALL NOT BE DEEMED AN OFFER OR ACCEPTANCE WITH RESPECT TO ANY SECURITIES. ANY SUCH OFFER OR SOLICITATION WILL COMPLY WITH ALL APPLICABLE SECURITIES LAWS. NOTHING CONTAINED IN THIS AMENDED & RESTATED TRANSACTION SUPPORT AGREEMENT SHALL BE AN ADMISSION OF FACT OR LIABILITY OR, UNTIL THE OCCURRENCE OF THE

April 18, 2023 PRE 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

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 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))  ☐ D

April 10, 2023 EX-16.1

April 10, 2023

EX-16.1 2 brhc10051214ex16-1.htm EXHIBIT 16.1 Exhibit 16.1 April 10, 2023 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by ATI Physical Therapy, Inc. (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to item 4.01 of Form 8-K of ATI Physical Therapy, Inc. dated April 4

April 10, 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 4, 2023 ATI PHYSICAL THERAP

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 4, 2023 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

March 22, 2023 EX-FILING FEES

Calculation of Filing Fee Table Form S-8 (Form Type) ATI Physical Therapy, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities CALCULATION OF REGISTRATION FEE

Exhibit 107 Calculation of Filing Fee Table Form S-8 (Form Type) ATI Physical Therapy, Inc.

March 22, 2023 S-8

As filed with the U.S. Securities and Exchange Commission on March 22, 2023

As filed with the U.S. Securities and Exchange Commission on March 22, 2023 Registration No. 333- SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 85-1408039 (State or other jurisdiction of incorporation or organization) (I.R.S. Employ

March 20, 2023 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): March 20, 2023 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) Commissio

March 17, 2023 SC 13D/A

ATIP / ATI Physical Therapy Inc - Class A / ADVENT INTERNATIONAL CORP/MA - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Amendment No. 3 Under the Securities Exchange Act of 1934 ATI PHYSICAL THERAPY, INC. (Name of Issuer) Class A Common Stock, $0.0001 par value per share (Title of Class of Securities) 00216W109 (CUSIP Number) Copy to: Amanda McGrady Morrison General Counsel and Chief Legal Officer Advent International Corp

March 16, 2023 EX-4.2

Exhibit 4.2

Exhibit 4.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED General The common stock and warrants to purchase common stock of ATI Physical Therapy, Inc. (the “Company”) are registered under Section 12(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The following descriptions summarize the mo

March 16, 2023 EX-99.1

ATI Physical Therapy Reports Fourth Quarter and Full Year 2022 Results Delivered on 2022 Revenue and Adjusted EBITDA1 Updated Guidance Completed Refreshment of Corporate Leadership Team with the Appointment of New Chief Operating Officer and Chief Gr

Exhibit 99.1 ATI Physical Therapy Reports Fourth Quarter and Full Year 2022 Results Delivered on 2022 Revenue and Adjusted EBITDA1 Updated Guidance Completed Refreshment of Corporate Leadership Team with the Appointment of New Chief Operating Officer and Chief Growth Officer in the Fourth Quarter Enters Into Transaction Support Agreement to Increase Liquidity and Financial Flexibility BOLINGBROOK,

March 16, 2023 EX-10.1

Transaction Support Agreement (filed as Exhibit 10.1 to the Issuer’s Annual Report on Form 10-K filed on March 16, 2023 and incorporated herein by reference).

exhibit101tsafullyexecu Execution Version WEIL:\99037057\16\18434.0011 THIS TRANSACTION SUPPORT AGREEMENT IS NOT AND SHALL NOT BE DEEMED AN OFFER OR ACCEPTANCE WITH RESPECT TO ANY SECURITIES. ANY SUCH OFFER OR SOLICITATION WILL COMPLY WITH ALL APPLICABLE SECURITIES LAWS. NOTHING CONTAINED IN THIS TRANSACTION SUPPORT AGREEMENT SHALL BE AN ADMISSION OF FACT OR LIABILITY OR, UNTIL THE OCCURRENCE OF T

March 16, 2023 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 December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Therap

March 16, 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 16, 2023 ATI PHYSICAL THERA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act Of 1934 Date of Report (Date of earliest event reported): March 16, 2023 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

March 3, 2023 EX-1

IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE

EX-1 2 brhc10049295ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 IN THE COURT OF CHANCERY OF THE STATE OF DELAWARE IN RE ATI PHYSICAL THERAPY, INC. ) ) C.A. No. 2023- VERIFIED PETITION FOR RELIEF PURSUANT TO 8 DEL. C. § 205 Petitioner ATI Physical Therapy, Inc. (“ATI” or the “Company”), by and through its undersigned counsel, brings this petition pursuant to 8 Del. C. § 205, seeking to have this Court vali

March 3, 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 3, 2023 (March 2, 2023) ATI

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 3, 2023 (March 2, 2023) ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorpora

December 22, 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): December 22, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

December 22, 2022 EX-10.1

EMPLOYMENT AGREEMENT

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of December 16, 2022 (the ?Signing Date?), between ATI Physical Therapy, Inc. (the ?Company?) and Scott Gregerson (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditions of Employee?s employment with the Company or its af

December 14, 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): December 14, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

December 14, 2022 EX-10.1

EMPLOYMENT AGREEMENT

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of November 28, 2022 (the ?Signing Date?), between ATI Physical Therapy, Inc. (the ?Company?) and Christopher Cox (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditions of Employee?s employment with the Company or its af

November 28, 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): November 28, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

November 25, 2022 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): November 25, 2022 ATI PHYSICAL TH

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 25, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

November 25, 2022 EX-99.1

ATI Physical Therapy Receives NYSE Continued Listing Standard Notice

Exhibit 99.1 ATI Physical Therapy Receives NYSE Continued Listing Standard Notice BOLINGBROOK, IL – November 25, 2022 – ATI Physical Therapy, Inc. (“ATI” or the “Company”) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, announced today that it received formal notice from the New York Stock Exchange (the “NYSE”) on November 18, 2022, of non-compli

November 8, 2022 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physic

November 7, 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, 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 7, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commis

November 7, 2022 EX-99.1

ATI Physical Therapy Reports Third Quarter 2022 Results

Exhibit 99.1 ATI Physical Therapy Reports Third Quarter 2022 Results BOLINGBROOK, IL ? November 7, 2022 ? ATI Physical Therapy, Inc. (?ATI? or the ?Company?) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today reported financial results for the third quarter ended September 30, 2022. ?Despite a continuing tight labor market and other secular he

November 7, 2022 EX-10.1

EMPLOYMENT AGREEMENT

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of November 2, 2022 (the ?Signing Date?), between ATI Physical Therapy, Inc. (the ?Company?) and Erik L. Kantz (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditions of Employee?s employment with the Company and to prote

October 20, 2022 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Knighthead Capital Management, LLC - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 2) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280 Park Avenue, 22nd Floor New York, New

September 28, 2022 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Knighthead Capital Management, LLC - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D/A (Amendment No. 1) Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280 Park Avenue, 22nd Floor New York, New York 100

September 23, 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): September 23, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Comm

August 22, 2022 424B3

ATI Physical Therapy, Inc. 157,588,289 shares of Common Stock 14,465,067 Warrants Up to 21,365,058 shares of Common Stock Issuable upon Exercise of the Warrants

424B3 1 ny20005103x1424b3.htm 424B3 TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus   ATI Physical Therapy, Inc. 157,588,289 shares of Common Stock 14,465,067 Warrants Up to 21,365,058 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus relates to: (1) the issuance by us of up to 6,899,991 shares of Class A common stock, par value

August 10, 2022 POS AM

As filed with the Securities and Exchange Commission on August 10, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 10, 2022 Registration No.

August 10, 2022 EX-FILING FEES

Calculation of Filing Fee Tables FORM S-3 (Form Type) ATI Physical Therapy, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Table 2: Fee Offset Claims and Sources Table 3: Combined Prospectuses

Exhibit 107 Calculation of Filing Fee Tables FORM S-3 (Form Type) ATI Physical Therapy, Inc.

August 9, 2022 EX-10.1

EMPLOYMENT AGREEMENT

EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of June 28, 2022 (the ?Signing Date?), between ATI Physical Therapy, Inc.

August 9, 2022 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Th

August 8, 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 8, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

August 8, 2022 EX-99.1

ATI Physical Therapy Reports Second Quarter 2022 Results Revises Guidance for Full Year 2022

Exhibit 99.1 ATI Physical Therapy Reports Second Quarter 2022 Results Revises Guidance for Full Year 2022 BOLINGBROOK, IL ? August 8, 2022 ? ATI Physical Therapy, Inc. (?ATI? or the ?Company?) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today reported financial results for the second quarter ended June 30, 2022. ?Patient demand remains strong

June 24, 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): June 24, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

June 24, 2022 EX-10.1

FIRST AMENDMENT TO EMPLOYMENT AGREEMENT

Exhibit 10.1 FIRST AMENDMENT TO EMPLOYMENT AGREEMENT This First Amendment (the ?Amendment?) to that certain Employment Agreement dated May 14, 2021 (the ?Original Agreement?), by ATI Physical Therapy, Inc. (f/k/a Fortress Value Acquisition Corp. II (the ?Company?), and Augustus Oakes (?Employee?), is made by the parties to be effective as of June 20, 2022 (the ?Amendment Date?). The term ?Agreemen

June 24, 2022 424B3

ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

424B3 1 brhc10039084424b3.htm 424B3 Filed Pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 3 (to Prospectus dated April 6, 2022) ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated April 6, 2022 (the “Prospec

June 24, 2022 424B3

ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants

Filed Pursuant to Rule 424(b)(3) Registration No. 333-264243 Prospectus Supplement No. 2 (to Prospectus dated April 26, 2022) ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated April 26, 2022 (the ?Prospectus?), which fo

June 24, 2022 424B3

ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants

Filed Pursuant to Rule 424(b)(3) Registration No. 333-264243 Prospectus Supplement No. 3 (to Prospectus dated April 26, 2022) ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated April 26, 2022 (the ?Prospectus?), which fo

June 24, 2022 424B3

ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed Pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 2 (to Prospectus dated April 6, 2022) ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated April 6, 2022 (the ?Prospectus?), which forms a part of our reg

June 24, 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): June 24, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

June 6, 2022 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act Of 1934 Date of Report (Date of earliest event reported): June 6, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commission

June 6, 2022 EX-10.2

Amendment No. 1 to the ATI Physical Therapy, Inc. 2021 EQUITY INCENTIVE PLAN As adopted by resolution of the Board of Directors on April 13, 2022

Exhibit 10.2 Amendment No. 1 to the ? ATI Physical Therapy, Inc. ? 2021 EQUITY INCENTIVE PLAN ? As adopted by resolution of the Board of Directors on April 13, 2022 The ATI Physical Therapy Inc. 2021 Equity Incentive Plan (?Plan?) is hereby amended by replacing Section 4.1 with the following: 4.1 ?Number of Shares Reserved. Subject to adjustment as provided in Section 4.2 and Section 4.4 hereof, t

June 6, 2022 EX-10.1

ATI Physical Therapy Inc. 2021 EQUITY INCENTIVE PLAN

Exhibit 10.1 ATI Physical Therapy Inc. 2021 EQUITY INCENTIVE PLAN 1. Purpose. The purpose of the ATI Physical Therapy 2021 Equity Incentive Plan is to further align the interests of eligible participants with those of the Company?s stockholders by providing incentive compensation opportunities tied to the performance of the Company and its Common Stock. The Plan is intended to advance the interest

May 13, 2022 424B3

ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Table of Contents Filed Pursuant Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 1 (to Prospectus dated April 6, 2022) ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated April 6, 2022 (the ?Prospectus?), which forms a

May 13, 2022 424B3

ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-264243 Prospectus Supplement No. 1 (to Prospectus dated April 26, 2022) ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated April 26, 2022 (the ?Pros

May 10, 2022 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical T

May 9, 2022 EX-99.1

ATI Physical Therapy Reports First Quarter 2022 Results Reaffirms Guidance for Full Year 2022

Exhibit 99.1 ATI Physical Therapy Reports First Quarter 2022 Results Reaffirms Guidance for Full Year 2022 BOLINGBROOK, IL ? May 9, 2022 ? ATI Physical Therapy, Inc. (?ATI? or the ?Company?) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today reported financial results for the first quarter ended March 31, 2022. ?As previously announced, Sharon

May 9, 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): May 9, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commission

April 29, 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): April 28, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

April 28, 2022 EX-10.1

EMPLOYMENT AGREEMENT

Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of March 30, 2022 (the ?Signing Date?), between ATI Physical Therapy, Inc. (the ?Company?) and Sharon A. Vitti (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditions of Employee?s employment with the Company or its affil

April 28, 2022 EX-99.1

ATI Physical Therapy Announces Appointment of Sharon Vitti as Chief Executive Officer

Exhibit 99.1 ATI Physical Therapy Announces Appointment of Sharon Vitti as Chief Executive Officer BOLINGBROOK, Ill., APRIL 28, 2022?ATI Physical Therapy ("ATI" or the "Company") (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today announced the appointment of Sharon Vitti as Chief Executive Officer. Vitti will lead ATI in executing its vision o

April 28, 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): April 28, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

April 27, 2022 424B3

ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-264243 Prospectus ATI Physical Therapy, Inc. 9,807,085 shares of Common Stock 11,498,401 Warrants Up to 11,498,401 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus relates to: (1) the issuance by us of up to 5,226,546 shares of Class A common stock, par value $0.0001 per share (?Common Stock?), of

April 25, 2022 CORRESP

ATI Physical Therapy, Inc. 790 Remington Boulevard Bolingbrook, Illinois 60440 April 25, 2022

ATI Physical Therapy, Inc. 790 Remington Boulevard Bolingbrook, Illinois 60440 April 25, 2022 VIA EDGAR AND EMAIL Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE Washington, D.C. 20549-3561 Attn: Jessica Ansart Re: ATI Physical Therapy, Inc. Registration Statement on Form S-1 (File No. 333-264243) Ladies and Gentlemen: We refer to the above referenced registration

April 21, 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

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 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 R

April 21, 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

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 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

April 12, 2022 EX-FILING FEES

Filing Fee Table.*

Exhibit 107 Calculation of Filing Fee Tables FORM S-1 (Form Type) ATI Physical Therapy Inc.

April 12, 2022 S-1

As filed with the Securities and Exchange Commission on April 11, 2022 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEME NT UNDER THE SECURITIES ACT OF 1933 ATI Physical Therap

Table of Contents As filed with the Securities and Exchange Commission on April 11, 2022 Registration No.

April 8, 2022 424B3

ATI Physical Therapy, Inc. 143,389,692 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed Pursuant Rule 424(b)(3) Registration No. 333-257801 The information in this prospectus is not complete and may be changed. The Selling Securityholders named in this prospectus may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting an offer to

April 1, 2022 POS AM

As filed with the Securities and Exchange Commission on April 1 , 2022 Registration No. 333-257801 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SEC

Table of Contents As filed with the Securities and Exchange Commission on April 1 , 2022 Registration No.

April 1, 2022 EX-10.24

Amendment No. 1 to Credit Agreement, dated as of March 30, 2022, by and among ATI Holdings Acquisition, Inc., Wilco Intermediate Holdings, Inc., HPS Investment Partners, LLC, as Lender Representative and Barclays Bank PLC, as Administrative Agent.*

Exhibit 10.24 EXECUTION VERSION AMENDMENT NO. 1 TO CREDIT AGREEMENT AMENDMENT NO. 1 TO CREDIT AGREEMENT, dated as of March 30, 2022 (this ?Amendment?), by and among ATI Holdings Acquisition, Inc., a Delaware corporation (the ?Borrower?), Wilco Intermediate Holdings, Inc., a Delaware corporation (?Holdings?), HPS Investment Partners, LLC, as Lender Representative (as defined in the Existing Credit

March 4, 2022 EX-99.1

Joint Filing Agreement among the Reporting Persons, dated as of March 4, 2022.

Exhibit 99.1 SCHEDULE 13D JOINT FILING AGREEMENT In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13D to which this joint filing agreement is attached, and any subsequent amendments thereto, and have duly executed this joint fil

March 4, 2022 SC 13D

ATIP / ATI Physical Therapy, Inc. / Knighthead Capital Management, LLC - SC 13D Activist Investment

SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D Under the Securities Exchange Act of 1934 ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) Laura Torrado c/o Knighthead Capital Management, LLC 280 Park Avenue, 22nd Floor New York, New York 10017 (212) 356-

March 1, 2022 EX-10.15

Employment Agreement, dated as of May 14, 2021, between Fortress Value Acquisition Corp. II and Joseph Zavalishin (filed as Exhibit 10.15 to the Annual Report on Form 10-K of the Company on March 1, 2022 and incorporated herein by reference).

WEIL:\97844204\2\18434.0003 FEC\41815\0004\8324229.v3-2/17/21 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of May 14, 2021 (the ?Signing Date?), between Fortress Value Acquisition Corp. II (the ?Company?) and Joseph Zavalishin (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditi

March 1, 2022 EX-10.16

Employment Agreement, dated as of May 14, 2021, between Fortress Value Acquisition Corp. II and Augustus Oakes (filed as Exhibit 10.16 to the Annual Report on Form 10-K of the Company on March 1, 2022 and incorporated herein by reference).

WEIL:\97844204\2\18434.0003 FEC\41815\0004\8324229.v3-2/17/21 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of May 14, 2021 (the ?Signing Date?), between Fortress Value Acquisition Corp. II (the ?Company?) and Augustus Oakes (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditions

March 1, 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 December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Therap

March 1, 2022 EX-4.5

DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

Exhibit 4.5 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED General The common stock and warrants to purchase common stock of ATI Physical Therapy, Inc. (the ?Company?) are registered under Section 12(b) of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?). The following descriptions summarize the mo

March 1, 2022 EX-10.14

Employment Agreement, dated as of May 14, 2021, between Fortress Value Acquisition Corp. II and Diana Chafey (filed as Exhibit 10.14 to the Annual Report on Form 10-K of the Company on March 1, 2022 and incorporated herein by reference).

WEIL:\97844204\2\18434.0003 FEC\41815\0004\8324229.v3-2/17/21 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this ?Agreement?) is made and entered into as of May 14, 2021 (the ?Signing Date?), between Fortress Value Acquisition Corp. II (the ?Company?) and Diana Chafey (?Employee?). 1.0 RECITALS. 1.1 Employee and the Company are entering into this Agreement to set forth the terms and conditions o

March 1, 2022 EX-21.1

Subsidiary Name

Exhibit 21.1 Subsidiary Name Jurisdiction of Organization / Incorporation Adient Alaska, LLC Delaware Advanced Physical Therapy, LLC Indiana Apple Physical Therapy, LLC Washington Athletic & Therapeutic Institute of Bolingbrook, LLC Illinois Athletic & Therapeutic Institute of Bourbonnais, LLC Illinois Athletic & Therapeutic Institute of Milwaukee, LLC Illinois Athletic & Therapeutic Institute of

February 25, 2022 EX-10.1

Credit Agreement, dated as of February 24, 2022, by and among ATI Holding Acquisition Inc., Wilco Intermediate Holdings, Inc., Barclays Bank PLC, as Administrative Agent and Issuing Bank and the other lenders party thereto (filed as Exhibit 10.1 to the Current Report on Form 8-K of the Company on February 25, 2022 and incorporated herein by reference).

Exhibit 10.1 EXECUTION VERSION CREDIT AGREEMENT dated as of February 24, 2022 among ATI HOLDINGS ACQUISITION, INC., as the Borrower, WILCO INTERMEDIATE HOLDINGS, INC., as Holdings, THE FINANCIAL INSTITUTIONS PARTY HERETO, as Lenders, and BARCLAYS BANK PLC, as Administrative Agent, BARCLAYS BANK PLC as an Issuing Bank HPS INVESTMENT PARTNERS, LLC as Arranger TABLE OF CONTENTS Page ARTICLE 1 DEFINIT

February 25, 2022 EX-4.1

Warrant Agreement, dated as of February 24, 2022, by and between ATI Physical Therapy, Inc. and Continental Stock Transfer & Trust Company, as Warrant Agent (filed as Exhibit 4.1 to the Current Report on Form 8-K of the Company on February 24, 2022 and incorporated herein by reference).

Exhibit 4.1 Execution Version WARRANT AGREEMENT BETWEEN ATI PHYSICAL THERAPY, INC. AND CONTINENTAL STOCK TRANSFER & TRUST COMPANY, AS WARRANT AGENT FEBRUARY 24, 2022 TABLE OF CONTENTS Page SECTION 1. Appointment of Warrant Agent 1 SECTION 2. Issuances; Exercise Price 1 SECTION 3. Form of Warrants 2 SECTION 4. Execution of Global Warrant Certificates 2 SECTION 5. Registration and Countersignature 3

February 25, 2022 EX-3.1

Certificate of Designation of Series A Senior Preferred Stock of ATI Physical Therapy, Inc., filed on February 24, 2022 (filed as Exhibit 3.1 to the Current Report on Form 8-K of the Company on February 25, 2022 and incorporated herein by reference).

Exhibit 3.1 CERTIFICATE OF DESIGNATION OF SERIES A SENIOR PREFERRED STOCK OF ATI PHYSICAL THERAPY, INC. FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE ON FEBRUARY 24, 2022 Pursuant to Section 151 of the General Corporation Law of the State of Delaware Pursuant to Section 151 of the General Corporation Law of the State of Delaware (the ?DGCL?), ATI Physical Therapy, Inc., a corporation d

February 25, 2022 EX-10.2

Series A Senior Preferred Stock Purchase Agreement, dated as of February 24, 2022, by and between ATI Physical Therapy, Inc. and the Purchasers signatory thereto (filed as Exhibit 10.2 to the Current Report on Form 8-K of the Company on February 25, 2022 and incorporated herein by reference).

Exhibit 10.2 Execution Version SERIES A SENIOR PREFERRED STOCK PURCHASE AGREEMENT BETWEEN ATI PHYSICAL THERAPY, INC. AND THE PURCHASERS SIGNATORY HERETO Dated as of February 24, 2022 TABLE OF CONTENTS Page ARTICLE I SUBSCRIPTION AND ISSUE OF SECURITIES 1 Section 1.1 Subscription and Issue of Securities 1 Section 1.2 Closing 2 Section 1.3 Closing Deliverables 2 Section 1.4 Purchase Price Allocation

February 25, 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): February 25, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

February 25, 2022 EX-10.3

Investors’ Rights Agreement, dated as of February 24, 2022, by and among ATI Physical Therapy, Inc. and the Holders party thereto from time to time (filed as Exhibit 10.3 to the Current Report on Form 8-K of the Company on February 25, 2022 and incorporated herein by reference).

Exhibit 10.3 Execution Version INVESTORS? RIGHTS AGREEMENT AMONG ATI PHYSICAL THERAPY, INC. AND THE HOLDERS PARTY HERETO FROM TIME TO TIME Dated as of February 24, 2022 TABLE OF CONTENTS Page ARTICLE I BOARD OF DIRECTORS; VOTING AGREEMENT 1 Section 1.1 Series A Preferred Director Designation 1 Section 1.2 Vacancies and Removal 1 ARTICLE II RESTRICTIONS ON TRANSFER OF SERIES A PREFERRED STOCK 2 Sec

February 25, 2022 EX-99.1

ATI Physical Therapy Reports Fourth Quarter and Full Year 2021 Results Company Provides 2022 Earnings Guidance

Exhibit 99.1 ATI Physical Therapy Reports Fourth Quarter and Full Year 2021 Results Company Provides 2022 Earnings Guidance BOLINGBROOK, IL ? February 25, 2022 ? ATI Physical Therapy ? (?ATI? or the ?Company?) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today reported financial results for the fourth quarter and full year ended December 31, 2

February 25, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, 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, 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 18, 2022 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

February 14, 2022 SC 13G/A

ATIP / ATI Physical Therapy, Inc. / GLENVIEW CAPITAL MANAGEMENT, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* ATI Physical Therapy Inc.** (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to

February 14, 2022 SC 13G/A

ATIP / ATI Physical Therapy, Inc. / GRANDVIEW LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (AMENDMENT NO. 2) ATI PHYSICAL THERAPY, INC. (formerly Fortress Value Acquisition Corp. II) (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 00216W109 (CUSIP Number) DECEMBER 31, 2021 (Date of event which requires filing of

January 31, 2022 SC 13G/A

ATIP / ATI Physical Therapy, Inc. / Linden Capital L.P. - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, $0.0001 par value (Title of Class of Securities) 00216W109 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate t

December 15, 2021 EX-99.1

Joint Filing Agreement

Exhibit 1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to shares of Class A Common Stock, $0.

December 15, 2021 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / ADVENT INTERNATIONAL CORP/MA - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Amendment No. 2 Under the Securities Exchange Act of 1934 ATI PHYSICAL THERAPY, INC. (Name of Issuer) Class A Common Stock, $0.0001 par value per share (Title of Class of Securities) 00216W109 (CUSIP Number) Copy to: James Westra General Counsel and Managing Partner Advent International Corporation Pruden

December 13, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 6 (to Prospectus dated July 30, 2021) ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated July 30, 2021 (the ?Prospectus?), which forms a part of our reg

December 7, 2021 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 1, 2021 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commis

November 29, 2021 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / ADVENT INTERNATIONAL CORP/MA - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Amendment No. 1 Under the Securities Exchange Act of 1934 ATI PHYSICAL THERAPY, INC. (Name of Issuer) Class A Common Stock, $0.0001 par value per share (Title of Class of Securities) 00216W109 (CUSIP Number) Copy to: James Westra General Counsel and Managing Partner Advent International Corporation Prudential Towe

November 29, 2021 EX-99.1

Joint Filing Agreement

Exhibit 1 Joint Filing Agreement In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to shares of Class A Common Stock, $0.

November 17, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 5 (to Prospectus dated July 30, 2021) ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated July 30, 2021 (the ?Prospectus?), which forms a part of our reg

November 17, 2021 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physic

November 17, 2021 EX-10.1

Mutual Release, dated as of July 25, 2021 by and between ATI Physical Therapy, Inc. and Cedric Coco (filed as Exhibit 10.1 to the Quarterly Report on Form 10-Q of the Company on November 17, 2021 and incorporated herein by reference).

MUTUAL RELEASE In exchange for good and valuable consideration set forth in that certain Employment Agreement (the ?Employment Agreement?) between the undersigned, Cedric Coco (?Employee?) and ATI Physical Therapy, Inc.

November 17, 2021 EX-10.2

Mutual Release, dated as of August 7, 2021, by and between ATI Physical Therapy, Inc. and Labeed Diab (filed as Exhibit 10.2 to the Quarterly Report on Form 10-Q of the Company on November 17, 2021 and incorporated herein by reference).

MUTUAL RELEASE In exchange for good and valuable consideration set forth in that certain Employment Agreement (the ?Employment Agreement?) between the undersigned, Labeed S.

November 16, 2021 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: September 30, 2021 ☐

OMB APPROVAL Number: 3235-0058 Expires: February 28, 2022 Estimated average burden hours per response 2.

November 9, 2021 EX-99.1

ATI Physical Therapy Reports Third Quarter 2021 Results

EX-99.1 2 d232302dex991.htm EX-99.1 Exhibit 99.1 ATI Physical Therapy Reports Third Quarter 2021 Results BOLINGBROOK, IL – November 9, 2021 – ATI Physical Therapy – (“ATI” or the “Company”) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today reported financial results for the third quarter ended September 30, 2021. “In October, we previewed sel

November 9, 2021 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 9, 2021 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commis

October 20, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 4 (to Prospectus dated July 30, 2021) ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated July 30, 2021 (the ?Prospectus?), which forms a part of our reg

October 19, 2021 EX-99.1

ATI Physical Therapy Announces Selected Preliminary Third Quarter 2021 Results And Revises 2021 Guidance

Exhibit 99.1 ATI Physical Therapy Announces Selected Preliminary Third Quarter 2021 Results And Revises 2021 Guidance BOLINGBROOK, IL – October 19, 2021 – ATI Physical Therapy—(“ATI” or the “Company”) (NYSE: ATIP), the largest single-branded outpatient physical therapy provider in the United States, today announced selected preliminary third quarter 2021 financial results ended September 30, 2021.

October 19, 2021 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): October 19, 2021 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commis

October 7, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 3 (to Prospectus dated July 30, 2021) ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated July 30, 2021 (the ?Prospectus?), which forms a part of our reg

September 3, 2021 S-8

As filed with the U.S. Securities and Exchange Commission on September 3, 2021

S-8 1 d210971ds8.htm FORM S-8 As filed with the U.S. Securities and Exchange Commission on September 3, 2021 Registration No. 333- SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ATI Physical Therapy, Inc. (Exact name of registrant as specified in its charter) Delaware 85-1408039 (State or other jurisdiction of incorporatio

September 3, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 3, 2021 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commi

August 17, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

424B3 1 d187207d424b3.htm 424B3 Table of Contents Filed pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 2 (to Prospectus dated July 30, 2021) ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated July 30, 2021

August 16, 2021 10-Q

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39439 ATI Physical Th

August 9, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-257801 Prospectus Supplement No. 1 (to Prospectus dated July 30, 2021) ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus supplement updates and supplements the prospectus dated July 30, 2021 (the ?Prospectus?), which forms a part of our reg

August 9, 2021 EX-99.1

ATI Physical Therapy Announces CEO Transition

EX-99.1 2 d25757dex991.htm EX-99.1 Exhibit 99.1 ATI Physical Therapy Announces CEO Transition BOLINGBROOK, IL – Aug. 9, 2021 – ATI Physical Therapy – (“ATI” or the “Company”) (NYSE: ATIP), the largest independent outpatient physical therapy provider in the United States, today announced that Labeed Diab has stepped down as CEO and member of the Board of Directors, effective immediately. John (Jack

August 9, 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, 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 7, 2021 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissi

August 6, 2021 SC 13D/A

ATIP / ATI Physical Therapy, Inc. / Fortress Investment Group LLC - SCHEDULE 13D, AMENDMENT NO. 1 Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* ATI Physical Therapy, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 00216W109 (CUSIP Number) David N. Brooks Fortress Investment Group LLC 1345 Avenue of the Americas, 46th Floor New York, NY 10105 (212) 798-610

July 30, 2021 424B3

ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants

Table of Contents Prospectus Filed Pursuant Rule 424(b)(3) Registration No. 333-257801 ATI Physical Therapy, Inc. 196,770,282 shares of Common Stock Up to 9,866,657 shares of Common Stock Issuable upon Exercise of the Warrants This prospectus relates to: (1) the issuance by us of up to 6,899,991 shares of common stock, par value $0.0001 per share (?Common Stock?), of ATI Physical Therapy, Inc., a

July 28, 2021 CORRESP

ATI Physical Therapy, Inc. 790 Remington Boulevard Bolingbrook, Illinois 60440 July 28, 2021

ATI Physical Therapy, Inc. 790 Remington Boulevard Bolingbrook, Illinois 60440 July 28, 2021 VIA EDGAR AND EMAIL Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE Washington, D.C. 20549-3561 Attn: Suzanne Hayes and Fredrick Philantrope Re: ATI Physical Therapy, Inc. Registration Statement on Form S-1 (CIK: 0001815849) Ladies and Gentlemen: We refer to the registrati

July 28, 2021 S-1/A

Power of Attorney (included on the signature page).**

Table of Contents As filed with the Securities and Exchange Commission on July 28, 2021 Registration No.

July 26, 2021 EX-99.1

ATI Physical Therapy Reports Second Quarter 2021 Results; Revises 2021 Forecast

Exhibit 99.1 ATI Physical Therapy Reports Second Quarter 2021 Results; Revises 2021 Forecast BOLINGBROOK, IL ? July 26, 2021 ? ATI Physical Therapy ? (?ATI? or the ?Company?) (NYSE: ATIP), the largest independent outpatient physical therapy provider in the United States, today reported financial results for the second quarter ended June 30, 2021. ?I would like to thank our nationwide team for thei

July 26, 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, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2021 ATI PHYSICAL THERAPY, INC. (Exact name of registrant as specified in its charter) Delaware 001-39439 85-1408039 (State or other jurisdiction of incorporation) (Commissio

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