Sec Form 4 Filing - Flynn James E @ Acutus Medical, Inc. - 2025-01-27

FORM 4 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 Flynn James E 2. Issuer Name and Ticker or Trading Symbol Acutus Medical, Inc. [ AFIB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) X __ Other (specify below) Director by deputization (Last) (First) (Middle) 345 PARK AVENUE SOUTH, 12TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 01/27/2025 (Street) NEW YORK, NY10010 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 20,822 ( 1 ) I Through Deerfield Management Company, L.P. ( 2 ) ( 3 ) Common Stock 1,026,243 I Through Deerfield Partners, L.P. ( 3 ) ( 4 ) Common Stock 1,622,143 I Through Deerfield Private Design Fund III, L.P. ( 3 ) ( 4 )

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 Warrant to Purchase Common Stock $ 1.1114 01/27/2025 D 1,889,509 ( 7 ) 06/30/2030 Class A Common Stock 1,889,509 ( 5 ) 0 I Through Deerfield Partners, L.P. ( 3 ) ( 4 ) Warrant to Purchase Common Stock $ 1.1114 01/27/2025 D 1,889,509 ( 7 ) 06/30/2030 Class A Common Stock 1,889,509 ( 5 ) 0 I Through Deerfield Private Design Fund III, L.P. ( 3 ) ( 4 ) Warrant to Purchase Common Stock $ 16.67 01/27/2025 D 209,996 ( 7 ) 05/20/2029 Class A Common Stock 209,996 ( 5 ) 0 I Through Deerfield Private Design Fund III, L.P. ( 3 ) ( 4 ) Warrant to Purchase Common Stock $ 0.097 01/27/2025 D 193,002 ( 7 ) 06/07/2028 Class A Common Stock 193,002 ( 5 ) 0 I Through Deerfield Private Design Fund III, L.P. ( 3 ) ( 4 ) Warrant to Purchase Common Stock $ 0.097 01/27/2025 D 31,116 ( 7 ) 06/07/2028 Class A Common Stock 31,116 ( 5 ) 0 I Through Deerfield Partners, L.P. ( 3 ) ( 4 ) Series A Common Stock Equivalent Convertible Preferred Stock ( 6 ) ( 6 ) ( 6 ) Class A Common Stock 948,395 948,395 I Through Deerfield Partners, L.P. ( 3 ) ( 4 ) Series A Common Stock Equivalent Convertible Preferred Stock ( 6 ) ( 6 ) ( 6 ) Class A Common Stock 1,816,446 1,816,446 I Through Deerfield Private Design Fund III, L.P. ( 3 ) ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Flynn James E 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK, NY10010 X Director by deputization DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 345 PARK AVENUE SOUTH, 12TH FLOOR NEW YORK, NY10010 X Director by deputization Signatures /s/ Jonathan Isler, Attorney-in-Fact 01/28/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents shares of the Issuer's Class A Common Stock previously issued upon settlement of certain restricted stock units ("RSUs") held by Andrew ElBardissi. ( 2 )Andrew ElBardissi, a partner in Deerfield Management Company, L.P. ("Deerfield Management"), serves as a director of the Issuer. The Class A Common Stock held by Mr. ElBardissi and reported herein are held for the benefit, and at the direction, of Deerfield Management. ( 3 )This Form 4 is being filed by the undersigned as well as the entity listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). James E. Flynn is the sole member of the general partner of Deerfield Management. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise. ( 4 )Deerfield Management is the investment manager of Deerfield Partners, L.P. and Deerfield Private Design Fund III, L.P. ( 5 )Each warrant was terminated by mutual agreement of the Reporting Persons and the Issuer. The Reporting Persons received in the aggregate $250,000 as consideration for such termination. ( 6 )Each share of Series A Common Equivalent Preferred Stock is convertible at any time into 1,000 shares of Common Stock, subject to a beneficial ownership limitation. The ability of a holder to convert Series A Common Equivalent Preferred Stock into Class A Common Stock is prohibited to the extent that, upon such conversion, such holder, its affiliates and other persons whose ownership of Class A Common Stock would be aggregated with that of such holder for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding. ( 7 )Prior to cancellation, each warrant was fully exercisable.

Remarks: Andrew ElBardissi, a partner in Deerfield Management, serves as a director of the Issuer. Jonathan Isler, Attorney-in-Fact: Power of Attorney, which is hereby incorporated by reference to Exhibit 24 to a Form 4 with regard to DA32 Life Science Tech Acquisition Corp. filed with the Securities and Exchange Commission on August 3, 2021 by Deerfield Partners, L.P., Deerfield Mgmt, L.P., Deerfield Management Company, L.P. and James E. Flynn.

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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