Sec Form 4 Filing - PETERSON MICHAEL L @ Ocean Biomedical, Inc. - 2023-02-28

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 PETERSON MICHAEL L 2. Issuer Name and Ticker or Trading Symbol Ocean Biomedical, Inc. [ OCEA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 515 MADISON AVENUE, SUITE 8078 3. Date of Earliest Transaction (MM/DD/YY) 02/28/2023 (Street) NEW YORK, NY10022 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 ( 1 ) ( 2 ) ( 3 ) 02/28/2023 J( 4 ) 80,000 ( 4 ) A 80,000 D

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 Private Placement Warrant ( 5 ) $ 11.5 ( 6 ) 02/28/2023( 7 ) J( 7 ) 200,000 03/14/2023( 6 ) 02/14/2028( 8 ) Common Stock 200,000 ( 5 ) ( 7 ) 200,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other PETERSON MICHAEL L 515 MADISON AVENUE, SUITE 8078 NEW YORK, NY10022 X Signatures /s/ Katherine E. Spiser, as attorney-in-fact for Michael L. Peterson 03/02/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )In connection with the closing on February 14, 2023 (the "Closing") of the business combination (the "Business Combination") between Aesther Healthcare Acquisition Corp. ("AHAC") and Ocean Biomedical Holdings, Inc., formerly known as Ocean Biomedical, Inc. ("Legacy Ocean"), pursuant to that certain Agreement and Plan of Merger, dated August 31, 2022 and amended on December 5, 2022, between AHAC, Aesther Healthcare Sponsor, LLC (the "Sponsor"), AHAC Merger Sub, Inc. ("Merger Sub"), Legacy Ocean, and Dr. Chirinjeev Kathuria, AHAC changed its name to Ocean Biomedical, Inc. (such post-Business Combination entity, the "Issuer"). ( 2 )Pursuant to the Issuer's Third Amended and Restated Certificate of Incorporation filed in connection with the Closing of the Business Combination, the Issuer completed a reclassification exempt under Rule 16b-7 (the "Reclassification"). In accordance with the Reclassification, each share of the Issuer's Class A Common Stock, par value $0.0001 per share (the "Class A Common Stock"), was reclassified on a one-for-one basis into a share of the Issuer's common stock, par value $0.0001 (the "Common Stock"). ( 3 )These shares were originally among the 2,625,000 shares of AHAC's Class B Common Stock, par value $0.0001 per share (the "Class B Founder Shares"), that the Sponsor owned prior to the Business Combination. In connection with the Closing of the Business Combination, the Class B Founder Shares automatically converted into shares of the Issuer's Class A Common Stock on a one-for-one basis, and the Class A Common Stock was then reclassified on a one-for-one basis into Common Stock in accordance with the Reclassification. ( 4 )In accordance with an instruction letter to the Sponsor's transfer agent (the "Instruction Letter"), the Sponsor instructed the transfer agent to transfer 2,625,000 shares of Common Stock to certain of the Sponsor's members for no consideration (such transaction, the "Transfer"). As part of the Transfer, the Reporting Person acquired 80,000 shares of Common Stock from the Sponsor. ( 5 )Simultaneously with the closing of the AHAC's initial public offering on September 17, 2021, the Sponsor purchased 5,411,000 warrants (the "Private Placement Warrants") from AHAC in a private placement at a price of $1.00 per warrant, pursuant to the terms of the Private Placement Warrants Purchase Agreement between AHAC and the Sponsor dated September 14, 2021 (the "Private Placement Agreement"). Upon the Reclassification that was effected in connection with the Closing of the Business Combination, each share of Class A Common Stock underlying the Private Placement Warrants was reclassified into a share of the Issuer's Common Stock. ( 6 )According to the original terms of the Private Placement Agreement, each Private Placement Warrant was exercisable to purchase one share of the Issuer's Class A Common Stock at an exercise price of $11.50 per share. The terms of the Private Placement Warrant were set forth in the Warrant Agreement, dated September 14, 2021, between AHAC and Continental Stock Transfer & Trust Company, LLC (the "Warrant Agreement"). The Private Placement Warrants become exercisable 30 days after the Closing of the Business Combination. ( 7 )On February 28, 2023, in accordance with the Instruction Letter, the Sponsor instructed its transfer agent to distribute these Private Placement Warrants to the Reporting Person. ( 8 )The Private Placement Warrants expire on the earlier to occur of (i) February 14, 2028, the date that is five years after the Closing of the Business Combination, (ii) at 5:00 p.m., New York City time on the Redemption Date (as defined in the Warrant Agreement), and (iii) the liquidation of the Trust Account (as defined in the Warrant Agreement).

Remarks: Exhibit List - Exhibit 24.1: Power of Attorney (Michael L. Peterson)

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