Sec Form 3 Filing - Pamplona Capital Partners V, L.P. @ Latham Group, Inc. - 2021-04-22

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Pamplona Capital Partners V, L.P. 2. Issuer Name and Ticker or Trading Symbol Latham Group, Inc. [ SWIM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) X __ Other (specify below) See Remarks (Last) (First) (Middle) C/O PAMPLONA CAPITAL MANAGEMENT LLC, 667 MADISON AVENUE, 22ND FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 04/22/2021 (Street) NEW YORK, NY10065 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value $0.0001 per share 70,561,013 ( 3 ) I See footnotes ( 1 ) ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Pamplona Capital Partners V, L.P. C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Pamplona Equity Advisors V, Ltd C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Pamplona PE Investments Malta Ltd C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Pamplona Capital Management, LLP C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Pamplona Capital Management, LLC C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Pamplona Capital Management (PE) SL C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Pamplona Capital Management (Monaco) SAM C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Halsted John C. C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Knaster Alexander M C/O PAMPLONA CAPITAL MANAGEMENT LLC 667 MADISON AVENUE, 22ND FLOOR NEW YORK, NY10065 X X See Remarks Signatures /s/ See signatures attached as Exhibit 99.1 04/22/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of shares directly held by Pamplona Capital Partners V, L.P. Pamplona Capital Partners V, L.P., is controlled by Pamplona Equity Advisors V Ltd, its general partner. John C. Halsted owns 100% of the shares of Pamplona Equity Advisors V, Ltd. Pamplona PE Investments Malta Limited, serves as an investment manager to Pamplona Capital Partners V, L.P. Pamplona Capital Management LLP, Pamplona Capital Management LLC, Pamplona Capital Management (PE) SL and Pamplona Capital Management (Monaco) SAM (together, the "Pamplona Manager Entities") serve as investment advisors to Pamplona PE Investments Malta Limited. Mr. John C. Halsted and Mr. Alexander Knaster are the principals of Pamplona Manager Entities. (Con't in FN2) ( 2 )(Con't from FN1) Each of Pamplona Equity Advisors V, Ltd, the Pamplona Manager Entities, John C. Halsted and Alexander Knaster may be deemed to have voting and dispositive power with respect to the common stock directly owned by Pamplona Capital Partners V, L. P. and therefore be deemed to be the beneficial owner of the common stock held by Pamplona Capital Partners V, L. P., but each disclaims beneficial ownership of such common stock except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that any such entity or person is the beneficial owner of or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. ( 3 )Represents 70,561,013 shares of common stock issued to Pamplona Capital Partners V, L.P. pursuant to the merger of Latham Investment Holdings, LP with and into the Issuer.

Remarks: The reporting persons are members of a 10% group with Wynnchurch Capital Partners, IV, L.P., WC Partners Executive IV, L.P., Wynnchurch Partners IV, L.P., Wynnchurch Management, Ltd., Wynnchurch Capital, L.P., John Hatherly, Frank Hayes and Christopher O'Brien (collectively, the "Wynnchurch Entities"). None of the shares of common stock held by Wynnchurch Entities are reflected in this report.Andrew Singer and William Pruellage currently serve as the reporting persons' representatives on the Latham Group, Inc.'s board of directors, and therefore each reporting person may be deemed to be a "director by deputization" of Latham Group, Inc.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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