FSAC / Foresite Life Sciences Corp - Class A - Documents déposés auprès de la SEC, rapport annuel, procuration

Federal Street Acquisition Corp

SC 13G/A 1 fsac20201231.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 Federal Street Acquisition Corp (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

FSAC / Federal Street Acquisition Corp. / Governors Lane LP - AMENDMENT NO. 2 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

FSAC / Federal Street Acquisition Corp. / OXFORD ASSET MANAGEMENT - OXFORD ASSET MANAGEMENT LLP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* FEDERAL STREET ACQUISITION CORP (Name of Issuer) Class A common stock, par value $0.0001 (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2019 (Date of Event which Requires Filing of this Statement) Check the appropriate box to design

FSAC / Federal Street Acquisition Corp. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Federal Street Acqui (Name of Issuer) Common Stock (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S

FSAC / Federal Street Acquisition Corp. / GLAZER CAPITAL, LLC Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 Federal Street Acquisition Corp (Name of Issuer) Class A Common Stock, $0.0001 par value (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

FSAC / Federal Street Acquisition Corp. / OXFORD ASSET MANAGEMENT - OXFORD ASSET MANAGEMENT LLP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 FEDERAL STREET ACQUISITION CORP (Name of Issuer) Class A common stock, par value $0.0001 (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2018 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursua

FSAC / Federal Street Acquisition Corp. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Federal Street Acqui (Name of Issuer) Common Stock (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

FSAC / Federal Street Acquisition Corp. / DAVIDSON KEMPNER PARTNERS - FEDERAL STREET ACQUISITION CORP. Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Federal Street Acquisition Corp. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

FSAC / Federal Street Acquisition Corp. 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-38153 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as spec

January 10, 2019

Exhibit 16.1 January 10, 2019 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by Federal Street Acquisition Corp. under Item 4.01 of its Form 8-K dated January 4, 2019. We agree with the statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements of Federal Street Acq

AGILITI, INC. 2018 OMNIBUS INCENTIVE PLAN ARTICLE I PURPOSE

Exhibit 10.1 AGILITI, INC. 2018 OMNIBUS INCENTIVE PLAN ARTICLE I PURPOSE The purpose of this Agiliti, Inc. 2018 Omnibus Incentive Plan is to enhance the profitability and value of the Company for the benefit of its stockholders by enabling the Company to offer Eligible Individuals cash and stock-based incentives in order to attract, retain and reward such individuals and strengthen the mutuality o

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION OF AGILITI, INC.

Exhibit 99.1 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION OF AGILITI, INC. Capitalized terms used herein and not otherwise defined have the meanings assigned to such terms in Agiliti, Inc.’s Definitive Proxy Statement/Prospectus (the “Proxy Statement/Prospectus”) filed with the SEC on October 10, 2018 or the Supplement to the Definitive Proxy Statement/Prospectus (the “Proxy Statem

FEDERAL STREET ACQUISITION CORP., THOMAS H. LEE PARTNERS, L.P. AND AGILITI HEALTH, INC. COMPLETE BUSINESS COMBINATION

Exhibit 99.3 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP., THOMAS H. LEE PARTNERS, L.P. AND AGILITI HEALTH, INC. COMPLETE BUSINESS COMBINATION BOSTON and MINNEAPOLIS—January 4, 2019—Federal Street Acquisition Corp. (NASDAQ: FSACU, FSAC, FSACW) (“FSAC”), a special-purpose acquisition company sponsored by an affiliate of Thomas H. Lee Partners, L.P. (“THL”), and Agiliti Holdco, Inc., the h

SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF FEDERAL STREET ACQUISITION CORP. January 4, 2019

Exhibit 3.1 SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF FEDERAL STREET ACQUISITION CORP. January 4, 2019 Federal Street Acquisition Corp., 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 “Federal Street Acquisition Corp.” The original certificate of incorporation of t

AMENDED AND RESTATED BYLAWS OF FEDERAL STREET ACQUISITION CORP. A Delaware Corporation (Adopted as of January 4, 2019) ARTICLE I.

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF FEDERAL STREET ACQUISITION CORP. A Delaware Corporation (Adopted as of January 4, 2019) ARTICLE I. OFFICES Section 1. Registered Office. The registered office of the corporation within the State of Delaware shall be located at either (a) the principal place of business of the corporation in the State of Delaware or (b) the office of the corporation or ind

FORM OF INDEMNITY AGREEMENT

Exhibit 10.2 Execution Version FORM OF INDEMNITY AGREEMENT THIS INDEMNITY AGREEMENT (this “Agreement”) is made as of [·], 2018, by and between AGILITI, INC., a Delaware corporation (the “Company”), and [·] (“Indemnitee”). RECITALS WHEREAS, highly competent persons have become more reluctant to serve publicly-held corporations as directors, officers or in other capacities unless they are provided w

Regulation FD Disclosure, Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Change in Shell Company Status, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 4, 2019 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorporation) (C

ADVISORY SERVICES AGREEMENT

Exhibit 10.13 Execution Version ADVISORY SERVICES AGREEMENT This ADVISORY SERVICES AGREEMENT (this “Agreement”) is entered into as of January 4, 2019 by and among (i) Agiliti, Inc., a Delaware corporation (“TopCo”), (ii) Agiliti Holdco, Inc. (f/k/a UHS Holdco, Inc.), a Delaware corporation (“Holdco”), (iii) Agiliti Health, Inc. (f/k/a Universal Hospital Services, Inc.), a Delaware corporation (“Op

ASSIGNMENT AND ASSUMPTION AGREEMENT

Exhibit 4.3 Execution Version ASSIGNMENT AND ASSUMPTION AGREEMENT THIS ASSIGNMENT AND ASSUMPTION AGREEMENT (the “Agreement”) is entered into and effective as of January 4, 2019, by and among Federal Street Acquisition Corp., a Delaware corporation (“FSAC”), Agiliti, Inc., a Delaware corporation (“Agiliti”), and Continental Stock Transfer & Trust Company, a New York corporation (“Continental”). WHE

Amendment to Investment Management Trust Agreement

Exhibit 10.12 EXECUTION VERSION Amendment to Investment Management Trust Agreement This Amendment to Investment Management Trust Agreement (this “Amendment”), dated as of January 3, 2019, is by and between Federal Street Acquisition Corp., a Delaware corporation (“FSAC”) and Continental Stock Transfer & Trust Company (“Continental”). Capitalized terms used but not defined herein shall have the mea

EXECUTIVE COMPENSATION DISCUSSION AND ANALYSIS OF AGILITI, INC.

Exhibit 99.2 EXECUTIVE COMPENSATION DISCUSSION AND ANALYSIS OF AGILITI, INC. Agiliti, Inc. (“Agiliti”) was formed in August 2018 in connection with the entry into the Agreement and Plan of Merger, dated as of August 13, 2018, which was amended and restated by the A&R Merger Agreement (as defined in the Current Report on Form 8-K to which this exhibit is attached). For the year 2018 and prior to th

AGREEMENT

Exhibit 99.3 AGREEMENT Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that only one statement containing the information required by Schedule 13D need be filed with respect to the ownership by each of the undersigned of shares of Federal Street Acquisition Corp. This agreement may be executed in any number of counterparts, each of w

FSAC / Federal Street Acquisition Corp. / Fs Sponsor Llc - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 FEDERAL STREET ACQUISITION CORP. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) CUSIP No. 31421V206 (CUSIP Number) Shari H. Wolkon Thomas H. Lee Partners, L.P. 100 Federal Street, 35th Floor Boston, Massachusetts 02110 (61

Regulation FD Disclosure, Termination of a Material Definitive Agreement, 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): December 28, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorporation)

Amended and Restated Subscription Agreement, dated December 19, 2018, by and between THL Agiliti LLC and Federal Street Acquisition Corp. (incorporated by reference to Exhibit 10.1 to FSAC’s Current Report on Form 8-K filed December 19, 2018)

QuickLinks - Click here to rapidly navigate through this document Exhibit 10.1 APPENDIX B AMENDED AND RESTATED SUBSCRIPTION AGREEMENT Federal Street Acquisition Corp. 100 Federal Street, 35th Floor Boston, MA 02110 Ladies and Gentlemen: WHEREAS, Federal Street Acquisition Corp., a Delaware corporation (the "Company"), Agiliti, Inc., a Delaware corporation (the "Issuer") and the undersigned (the "S

FEDERAL STREET ACQUISITION CORP. AMENDS TERMS OF MERGER AGREEMENT WITH AGILITI HEALTH AND ENTERS INTO SUBSCRIPTION AGREEMENT WITH AFFILIATE OF THOMAS H. LEE PARTNERS, L.P.

QuickLinks - Click here to rapidly navigate through this document Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. AMENDS TERMS OF MERGER AGREEMENT WITH AGILITI HEALTH AND ENTERS INTO SUBSCRIPTION AGREEMENT WITH AFFILIATE OF THOMAS H. LEE PARTNERS, L.P. BOSTON and MINNEAPOLIS—December 20, 2018—Federal Street Acquisition Corp. (NASDAQ: FSACU, FSAC, FSACW) ("FSAC"), a special-purp

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

QuickLinks - Click here to rapidly navigate through this document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

Transaction summary ($ in millions, except per share value) Sources UHS Illustrative Share Price $10.00 102.3 New Debt Raised Revolver Draw at Close Existing Capital Leases Rollover Management Rollover THL LLC PIPE FSAC Public5 $660 34 19 22 750 [TBD

Exhibit 99.2 Transaction summary ($ in millions, except per share value) Sources UHS Illustrative Share Price $10.00 102.3 New Debt Raised Revolver Draw at Close Existing Capital Leases Rollover Management Rollover THL LLC PIPE FSAC Public5 $660 34 19 22 750 [TBD] 1 (x) Pro Forma Shares Outstanding Fully Distributed Equity Value Plus: Pro Forma Net Debt $1,023 713 Fully Distributed Enterprise Valu

Amended and Restated Merger Agreement, by and among Federal Street Acquisition Corp., Agiliti, Inc., Umpire SPAC Merger Sub, Inc., Umpire Equity Merger Sub, Inc., Umpire Cash Merger Sub, Inc., Agiliti Holdco, Inc., solely in their capacities as Majority Stockholders, IPC/UHS, L.P. and IPC/UHS Co Investment Partners, L.P., and solely in its capacity as the Stockholders’ Representative, IPC/UHS, L.P., and, solely for the purposes stated therein, Umpire Equity Merger Sub, Inc. (incorporated by reference to Exhibit 2.2(a) to FSAC’s Current Report on Form 8-K filed December 19, 2018)

Use these links to rapidly review the document TABLE OF CONTENTS Exhibit 2.2(a) APPENDIX A AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER BY AND AMONG FEDERAL STREET ACQUISITION CORP., AGILITI, INC., UMPIRE SPAC MERGER SUB, INC., UMPIRE CASH MERGER SUB, INC., AGILITI HOLDCO, INC., IPC/UHS CO-INVESTMENT PARTNERS, L.P. (solely in its capacity as a Majority Stockholder), IPC/UHS, L.P. (solely in i

FEDERAL STREET ACQUISITION CORP. AMENDS TERMS OF MERGER AGREEMENT WITH AGILITI HEALTH AND ENTERS INTO SUBSCRIPTION AGREEMENT WITH AFFILIATE OF THOMAS H. LEE PARTNERS, L.P.

QuickLinks - Click here to rapidly navigate through this document Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. AMENDS TERMS OF MERGER AGREEMENT WITH AGILITI HEALTH AND ENTERS INTO SUBSCRIPTION AGREEMENT WITH AFFILIATE OF THOMAS H. LEE PARTNERS, L.P. BOSTON and MINNEAPOLIS—December 20, 2018—Federal Street Acquisition Corp. (NASDAQ: FSACU, FSAC, FSACW) ("FSAC"), a special-purp

FSAC / Federal Street Acquisition Corp. 8-K (Prospectus)

425 1 a2237398z8-k.htm 8-K QuickLinks - Click here to rapidly navigate through this document 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 19, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified

Transaction summary ($ in millions, except per share value) Sources UHS Illustrative Share Price $10.00 102.3 New Debt Raised Revolver Draw at Close Existing Capital Leases Rollover Management Rollover THL LLC PIPE FSAC Public5 $660 34 19 22 750 [TBD

Exhibit 99.2 Transaction summary ($ in millions, except per share value) Sources UHS Illustrative Share Price $10.00 102.3 New Debt Raised Revolver Draw at Close Existing Capital Leases Rollover Management Rollover THL LLC PIPE FSAC Public5 $660 34 19 22 750 [TBD] 1 (x) Pro Forma Shares Outstanding Fully Distributed Equity Value Plus: Pro Forma Net Debt $1,023 713 Fully Distributed Enterprise Valu

Amended and Restated Merger Agreement, by and among Federal Street Acquisition Corp., Agiliti, Inc., Umpire SPAC Merger Sub, Inc., Umpire Equity Merger Sub, Inc., Umpire Cash Merger Sub, Inc., Agiliti Holdco, Inc., (formerly known as UHS Holdco, Inc.), solely in their capacities as Majority Stockholders, IPC/UHS, L.P. ("IPC") and IPC/UHS Co Investment Partners, L.P., each a Delaware limited partnership (collectively, the "Majority Stockholders"), and solely in its capacity as the Stockholders' Representative, IPC, and, solely for purposes of Sections 1.6 and 9.12 of the A&R Merger Agreement, Umpire Equity Merger Sub, Inc.

Use these links to rapidly review the document TABLE OF CONTENTS Exhibit 2.2(a) APPENDIX A AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER BY AND AMONG FEDERAL STREET ACQUISITION CORP., AGILITI, INC., UMPIRE SPAC MERGER SUB, INC., UMPIRE CASH MERGER SUB, INC., AGILITI HOLDCO, INC., IPC/UHS CO-INVESTMENT PARTNERS, L.P. (solely in its capacity as a Majority Stockholder), IPC/UHS, L.P. (solely in i

Subscription Agreement, dated December 19, 2018, by and between THL Agiliti LLC and Federal Street Acquisition Corp.

QuickLinks - Click here to rapidly navigate through this document Exhibit 10.1 APPENDIX B AMENDED AND RESTATED SUBSCRIPTION AGREEMENT Federal Street Acquisition Corp. 100 Federal Street, 35th Floor Boston, MA 02110 Ladies and Gentlemen: WHEREAS, Federal Street Acquisition Corp., a Delaware corporation (the "Company"), Agiliti, Inc., a Delaware corporation (the "Issuer") and the undersigned (the "S

FSAC / Federal Street Acquisition Corp. DEFA14A

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

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-6 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT

Regulation FD Disclosure, 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): December 17, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorporation)

FEDERAL STREET ACQUISITION CORP. TO ADJOURN SPECIAL MEETING OF STOCKHOLDERS UNTIL JANUARY 3, 2019

Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. TO ADJOURN SPECIAL MEETING OF STOCKHOLDERS UNTIL JANUARY 3, 2019 BOSTON and MINNEAPOLIS — December 17, 2018 — Federal Street Acquisition Corp. (NASDAQ: FSACU, FSAC, FSACW) (“FSAC”), a special-purpose acquisition company sponsored by an affiliate of Thomas H. Lee Partners, L.P., and the holding company of Agiliti Health, Inc. (f/k/

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-6 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 The following press release was issued by Universal Hospital Services, Inc., a subsidiary of UH

FSAC / Federal Street Acquisition Corp. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPOR

Regulation FD Disclosure, 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): November 9, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorporation) (

FEDERAL STREET ACQUISITION CORP. TO ADJOURN SPECIAL MEETING OF STOCKHOLDERS UNTIL DECEMBER 17, 2018

Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. TO ADJOURN SPECIAL MEETING OF STOCKHOLDERS UNTIL DECEMBER 17, 2018 BOSTON and MINNEAPOLIS — November 9, 2018 — Federal Street Acquisition Corp. (NASDAQ: FSACU, FSAC, FSACW) (“FSAC”), a special-purpose acquisition company sponsored by an affiliate of Thomas H. Lee Partners, L.P., and the holding company of Universal Hospital Servic

FSAC / Federal Street Acquisition Corp. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-

FSAC / Federal Street Acquisition Corp. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPOR

Regulation FD Disclosure, 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): October 30, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorporation) (

FEDERAL STREET ACQUISITION CORP. ADJOURNS SPECIAL MEETING OF STOCKHOLDERS UNTIL NOVEMBER 14, 2018

Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. ADJOURNS SPECIAL MEETING OF STOCKHOLDERS UNTIL NOVEMBER 14, 2018 BOSTON and MINNEAPOLIS — October 30, 2018 — Federal Street Acquisition Corp. (NASDAQ: FSACU, FSAC, FSACW) (“FSAC”), a special-purpose acquisition company sponsored by an affiliate of Thomas H. Lee Partners, L.P., and the holding company of Universal Hospital Services

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 The following is an addendum to the updated investor presentation filed with the Securities an

FSAC / Federal Street Acquisition Corp. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 The following is an updated investor presentation that will be used by Federal Street Acquisit

FSAC / Federal Street Acquisition Corp. DEFM14A

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

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 The following is an updated investor presentation that will be used by Federal Street Acquisit

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPOR

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 30, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorporation) (C

UNIVERSAL HOSPITAL SERVICES TO PARTICIPATE IN UPCOMING INVESTOR CONFERENCES Management to present an overview of the company following recent merger agreement

Exhibit 99.1 FOR IMMEDIATE RELEASE UNIVERSAL HOSPITAL SERVICES TO PARTICIPATE IN UPCOMING INVESTOR CONFERENCES Management to present an overview of the company following recent merger agreement Minneapolis, MN, August 30, 2018 — Universal Hospital Services, Inc. (“UHS”), a leading, nationwide provider of healthcare technology management and service solutions to the U.S. healthcare industry, and Fe

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Commission File No. for the Related Registration Statement: 333-226975 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPOR

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 22, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorpora

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. (SEC File No. 132-02824) Date: August 15, 2018 The following is an updated investor presentation that will be used by Federal Street Acquisition Corp. and UHS Holdco, Inc. in connection with

Voting Agreement, dated as of August 13, 2018, by and between FS Sponsor LLC and UHS Holdco (incorporated by reference to Exhibit 10.1 to FSAC's Current Report on Form 8-K/A filed August 14, 2018).

EXHIBIT 10.1 VOTING AGREEMENT This VOTING AGREEMENT (this “Agreement”) is made and entered into as of August 13, 2018, by and among UHS Holdco, Inc., a Delaware corporation (“UHS HoldCo”), and FS Sponsor LLC, a Delaware limited liability company (the “Stockholder”). RECITALS A. Concurrently with the execution and delivery of this Agreement, Federal Street Acquisition Corp., a Delaware corporation

Form of Registration Rights Agreement, by and among Agiliti, IPC/UHS, L.P. and IPC/UHS Co-Investment Partners, L.P., THL Stockholder, Thomas J. Leonard and the other holders named therein or thereafter become a party thereto (incorporated by reference to Exhibit D of Exhibit 2.1 to FSAC's Current Report on Form 8-K/A filed August 14, 2018).

EXHIBIT 2.1

Form of Voting, Support and Restrictive Covenant Agreements, dated as of August 13, 2018, by and among FSAC and members of management of UHS Holdco (incorporated by reference to Exhibit 10.3 to FSAC's Current Report on Form 8-K/A filed August 14, 2018).

EXHIBIT 10.3 FORM OF VOTING, SUPPORT, CONTRIBUTION AND RESTRICTIVE COVENANT AGREEMENT This VOTING, SUPPORT, CONTRIBUTION AND RESTRICTIVE COVENANT AGREEMENT (this “Agreement”) is made and entered into as of August 13, 2018, by and among (i) Federal Street Acquisition Corp., a Delaware corporation (“Parent”), and Agiliti, Inc., a Delaware corporation (“PubCo”, and together with Parent, the “Parent P

Form of Subscription Agreement by and between FSAC and each of the investors party to such agreement (incorporated by reference to Exhibit 10.4 to FSAC's Current Report on Form 8-K/A filed August 14, 2018).

EXHIBIT 10.4 FORM OF SUBSCRIPTION AGREEMENT

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO. 1 TO FORM 8-K 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 13, 2018 FEDERAL STREET ACQUISITION CORP. (Exact Name of Registrant as Specified in Charter) Delaware 001-38153 82-0908890 (State or Other Jurisdiction of I

Subscription Agreement, dated as of August 13, 2018, by and between FSAC and THL Stockholder (incorporated by reference to Exhibit 10.5 to FSAC's Current Report on Form 8-K/A filed August 14, 2018).

EXHIBIT 10.5 EXECUTION VERSION

Voting, Restrictive Covenant and Support Agreement, by and among IPC/UHS, L.P., IPC/UHS Co-Investment Partners, L.P., FSAC and Agiliti (incorporated by reference to Exhibit 10.2 to FSAC's Current Report on Form 8-K/A filed August 14, 2018).

EXHIBIT 10.2 VOTING, SUPPORT AND RESTRICTIVE COVENANT AGREEMENT This VOTING, SUPPORT AND RESTRICTIVE COVENANT AGREEMENT (this “Agreement”) is made and entered into as of August 13, 2018, by and among (i) Federal Street Acquisition Corp., a Delaware corporation (“Parent”), and Agiliti, Inc., a Delaware corporation (“PubCo”, and together with Parent, the “Parent Parties”), on the one hand and (ii) I

VOTING AGREEMENT

EXHIBIT 10.1 VOTING AGREEMENT This VOTING AGREEMENT (this “Agreement”) is made and entered into as of August 13, 2018, by and among UHS Holdco, Inc., a Delaware corporation (“UHS HoldCo”), and FS Sponsor LLC, a Delaware limited liability company (the “Stockholder”). RECITALS A. Concurrently with the execution and delivery of this Agreement, Federal Street Acquisition Corp., a Delaware corporation

FORM OF VOTING, SUPPORT, CONTRIBUTION AND RESTRICTIVE COVENANT AGREEMENT

EXHIBIT 10.3 FORM OF VOTING, SUPPORT, CONTRIBUTION AND RESTRICTIVE COVENANT AGREEMENT This VOTING, SUPPORT, CONTRIBUTION AND RESTRICTIVE COVENANT AGREEMENT (this “Agreement”) is made and entered into as of August 13, 2018, by and among (i) Federal Street Acquisition Corp., a Delaware corporation (“Parent”), and Agiliti, Inc., a Delaware corporation (“PubCo”, and together with Parent, the “Parent P

FORM OF SUBSCRIPTION AGREEMENT

EX-10.4 6 a18-186814ex10d4.htm EX-10.4 EXHIBIT 10.4 FORM OF SUBSCRIPTION AGREEMENT Federal Street Acquisition Corp. 100 Federal Street, 35th Floor Boston, MA 02110 Ladies and Gentlemen: In connection with the proposed business combination (the “Transaction”) between Federal Street Acquisition Corp., a Delaware corporation (the “Company”), Agiliti, Inc., a Delaware corporation (the “Issuer”), and U

AGREEMENT AND PLAN OF MERGER* BY AND AMONG FEDERAL STREET ACQUISITION CORP., AGILITI, INC., UMPIRE SPAC MERGER SUB, INC., UMPIRE EQUITY MERGER SUB, INC., UMPIRE CASH MERGER SUB, INC., UHS HOLDCO, INC., IPC/UHS CO-INVESTMENT PARTNERS, L.P. (solely in

EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER* BY AND AMONG FEDERAL STREET ACQUISITION CORP., AGILITI, INC., UMPIRE SPAC MERGER SUB, INC., UMPIRE EQUITY MERGER SUB, INC., UMPIRE CASH MERGER SUB, INC., UHS HOLDCO, INC., IPC/UHS CO-INVESTMENT PARTNERS, L.P. (solely in its capacity as a Majority Stockholder), and IPC/UHS, L.P. (solely in its capacity as a Majority Stockholder and as the Stockholders’ Repr

FSAC / Federal Street Acquisition Corp. 8-K/A (Prospectus)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO. 1 TO FORM 8-K 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 13, 2018 FEDERAL STREET ACQUISITION CORP. (Exact Name of Registrant as Specified in Charter) Delaware 001-38153 82-0908890 (State or Other Jurisdiction of I

VOTING, SUPPORT AND RESTRICTIVE COVENANT AGREEMENT

EXHIBIT 10.2 VOTING, SUPPORT AND RESTRICTIVE COVENANT AGREEMENT This VOTING, SUPPORT AND RESTRICTIVE COVENANT AGREEMENT (this “Agreement”) is made and entered into as of August 13, 2018, by and among (i) Federal Street Acquisition Corp., a Delaware corporation (“Parent”), and Agiliti, Inc., a Delaware corporation (“PubCo”, and together with Parent, the “Parent Parties”), on the one hand and (ii) I

SUBSCRIPTION AGREEMENT

EXHIBIT 10.5 EXECUTION VERSION SUBSCRIPTION AGREEMENT Federal Street Acquisition Corp. 100 Federal Street, 35th Floor Boston, MA 02110 Ladies and Gentlemen: In connection with the proposed business combination (the “Transaction”) between Federal Street Acquisition Corp., a Delaware corporation (the “Company”), Agiliti, Inc., a Delaware corporation (the “Issuer”), and UHS Holdco, Inc., a Delaware c

FSAC / Federal Street Acquisition Corp. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-38153

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

Filed by Federal Street Acquisition Corp. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Agiliti, Inc. Date: August 13, 2018 On August 13, 2018, Federal Street Acquisition Corp. and UHS Holdco, Inc., the holding company of Universal Hospital Services, Inc., hosted a conference call to discuss

FSAC / Federal Street Acquisition Corp. 425 (Prospectus)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 13, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorpora

Federal Street Acquisition Corp. and Agiliti

Exhibit 99.2 Federal Street Acquisition Corp. and Agiliti Importantinformation The information in this presentation relates to a proposed business combination among Federal Street Acquisition Corp. (“FSAC”) and Universal Hospital Services, Inc. (“UHS”). The proposed business combination involves a series of mergers by which FSAC and UHS will become subsidiaries of a new holding company called Agil

FEDERAL STREET ACQUISITION CORP. TO COMBINE WITH UNIVERSAL HOSPITAL SERVICES Combined Company to be Named “Agiliti, Inc.” and Listed on Nasdaq Stock Market Combined Company Positioned to Execute on Compelling Growth Opportunities in Healthcare Servic

Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. TO COMBINE WITH UNIVERSAL HOSPITAL SERVICES Combined Company to be Named “Agiliti, Inc.” and Listed on Nasdaq Stock Market Combined Company Positioned to Execute on Compelling Growth Opportunities in Healthcare Services Market Under Leadership of Current Management Team MINNEAPOLIS and BOSTON — (BUSINESS WIRE) — August 13, 2018 —

Message to all UHS employees (EMAIL)

Exhibit 99.3 Message to all UHS employees (EMAIL) To our remarkable UHS team members, Today, I am pleased and proud to share some momentous news. Moments ago, we announced that UHS has entered into an agreement that would enable us to form a new public company with a new name—Agiliti. Upon the closing of the transaction later this year, we expect that the common stock of Agiliti will trade on the

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, 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 Section 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 13, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorpora

FSAC / Federal Street Acquisition Corp. 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 13, 2018 FEDERAL STREET ACQUISITION CORP. (Exact name of registrant as specified in its charter) Delaware 001-38153 82-0908890 (State or other jurisdiction of incorpora

Federal Street Acquisition Corp. and Agiliti

Exhibit 99.2 Federal Street Acquisition Corp. and Agiliti Importantinformation The information in this presentation relates to a proposed business combination among Federal Street Acquisition Corp. (“FSAC”) and Universal Hospital Services, Inc. (“UHS”). The proposed business combination involves a series of mergers by which FSAC and UHS will become subsidiaries of a new holding company called Agil

Message to all UHS employees (EMAIL)

Exhibit 99.3 Message to all UHS employees (EMAIL) To our remarkable UHS team members, Today, I am pleased and proud to share some momentous news. Moments ago, we announced that UHS has entered into an agreement that would enable us to form a new public company with a new name—Agiliti. Upon the closing of the transaction later this year, we expect that the common stock of Agiliti will trade on the

FEDERAL STREET ACQUISITION CORP. TO COMBINE WITH UNIVERSAL HOSPITAL SERVICES Combined Company to be Named “Agiliti, Inc.” and Listed on Nasdaq Stock Market Combined Company Positioned to Execute on Compelling Growth Opportunities in Healthcare Servic

Exhibit 99.1 FOR IMMEDIATE RELEASE FEDERAL STREET ACQUISITION CORP. TO COMBINE WITH UNIVERSAL HOSPITAL SERVICES Combined Company to be Named “Agiliti, Inc.” and Listed on Nasdaq Stock Market Combined Company Positioned to Execute on Compelling Growth Opportunities in Healthcare Services Market Under Leadership of Current Management Team MINNEAPOLIS and BOSTON — (BUSINESS WIRE) — August 13, 2018 —

FSAC / Federal Street Acquisition Corp. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-3815

FSAC / Federal Street Acquisition Corp. 10-K (Annual Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2017 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-38

FSAC / Federal Street Acquisition Corp. / GLAZER CAPITAL, LLC Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Federal Street Acquisition Corp. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

FSAC / Federal Street Acquisition Corp. / Fs Sponsor Llc - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* FEDERAL STREET ACQUISITION CORP. (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 31421V107 (CUSIP Number) DECEMBER 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

FSAC / Federal Street Acquisition Corp. / DAVIDSON KEMPNER PARTNERS - FEDERAL STREET ACQUISITION CORP. Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Federal Street Acquisition Corp. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 31421V107 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

FSAC / Federal Street Acquisition Corp. / Governors Lane LP - AMENDMENT NO. 1 Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

FSAC / Federal Street Acquisition Corp. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2017 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-

Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K filed with the SEC on August 29, 2017).

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF FEDERAL STREET ACQUISITION CORP. July 18, 2017 Federal Street Acquisition Corp., 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 “Federal Street Acquisition Corp.”. The original certificate of incorporation of the Corpo

FSAC / Federal Street Acquisition Corp. 10-Q (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2017 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-38153

FSAC / Federal Street Acquisition Corp. / Governors Lane LP - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Federal Street Acquisition Corp.

FSAC / Federal Street Acquisition Corp. / DAVIDSON KEMPNER PARTNERS - FEDERAL STREET ACQUISITION CORP. Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Federal Street Acquisition Corp. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 31421V206 (CUSIP Number) July 19, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the