Sec Form 4 Filing - Arnerich Anthony L. @ VAPOTHERM INC - 2024-09-20

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 Arnerich Anthony L. 2. Issuer Name and Ticker or Trading Symbol VAPOTHERM INC [ VAPO] 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) 100 DOMAIN DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 09/20/2024 (Street) EXETER, NH03833 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 09/20/2024 D 9,179 D 0 D Common Stock 09/20/2024 D 2,625 D $ 2.18 ( 2 ) 0 D Common Stock 09/20/2024 D 65,876 D 0 I By Anthony L. Arnerich Trust Common Stock 09/20/2024 D 6,112 D $ 2.18 ( 3 ) 0 I By Christine A. Arnerich Trust Common Stock 09/20/2024 D 149,201 ( 4 ) D $ 2.18 ( 5 ) 0 I By 3x5 Partners, LLC ( 6 )

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 Stock Option (right to buy) $ 112 09/20/2024 D 1,781 ( 7 ) 11/16/2028 Common Stock 1,781 $ 0 0 D Stock Option (right to buy) $ 150 09/20/2024 D 1,187 ( 8 ) 07/24/2029 Common Stock 1,187 $ 0 0 D Stock Option (right to buy) $ 18.48 09/20/2024 D 1,089 ( 9 ) 07/27/2032 Common Stock 1,089 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Arnerich Anthony L. 100 DOMAIN DRIVE EXETER, NH03833 X Signatures /s/ James A. Lightman, as Attorney In Fact 09/24/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Disposed of pursuant to an Agreement and Plan of Merger (Merger Agreement), dated as of June 17, 2024, among Veronica Holdings, LLC (Topco), Veronica Intermediate Holdings, LLC, Veronica Merger Sub, Inc. and Vapotherm, Inc. (Company) and a Rollover Agreement, dated as of June 17, 2024, among Topco, the Company and the reporting person in exchange for an aggregate number of Topco common units at a price per unit of $2.18. ( 2 )The restricted stock unit awards, which these shares were subject to, were canceled in the merger in exchange for a cash payment of $2.18 per underlying share. Pursuant to a Subscription Agreement, dated as of June 17, 2024, between Topco and the reporting person, the reporting person agreed to use such proceeds to subscribe for Topco common units. ( 3 )Disposed of pursuant to the Merger Agreement and a Rollover Agreement, dated as of September 20, 2024, among Topco, the Company and the reporting person's spouse in exchange for an aggregate number of Topco common units at a price per unit of $2.18. ( 4 )Consists of (i) 985 shares held by Arnerich 3x5 Special Opportunity Managers, L.P., of which 3x5 Partners, LLC is the general manager, (ii) 98,844 shares directly held by Vapotherm Investors, LLC, and (iii) 49,372 shares directly held by 3x5 Special Opportunity Fund, L.P. ( 5 )Disposed of pursuant to the Merger Agreement in exchange for a cash payment of $2.18 per share. ( 6 )The reporting person is a managing member of 3x5 Partners, LLC. 3x5 Partners, LLC is the managing member of Vapotherm Investors, LLC and a member of 3x5 Special Opportunity Partners, LLC, which is the general partner of 3x5 Special Opportunity Fund, L.P., and by virtue of these relationships 3x5 Partners, LLC may be deemed to indirectly beneficially own the shares directly held by Vapotherm Investors, LLC and 3x5 Special Opportunity Fund, L.P. As a managing member of 3x5 Partners, LLC the reporting person shares voting and dispositive power over such securities. The reporting person disclaims beneficial ownership, within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise, of such securities except to the extent of his pecuniary interest therein. ( 7 )This option, which provided for vesting as to one-third of the underlying shares on November 16, 2019 and the remaining two-thirds of the underlying shares in two equal installments thereafter, was canceled in the merger in exchange for a cash payment equal to: (a) the number of shares of Company common stock underlying the option, multiplied by (b) the excess, if any, of $2.18 over the per share exercise price of such option, which cash payment was $0.00 since this option had an exercise price that exceeded $2.18. ( 8 )This option, which provided for vesting in full on the earlier of the first anniversary of the date of grant or the Company's 2020 annual meeting of stockholders, was canceled in the merger in exchange for a cash payment equal to: (a) the number of shares of Company common stock underlying the option, multiplied by (b) the excess, if any, of $2.18 over the per share exercise price of such option, which cash payment was $0.00 since this option had an exercise price that exceeded $2.18. ( 9 )This option, which provided for vesting in full on the earlier of the first anniversary of the date of grant or the Company's 2023 annual meeting of stockholders, was canceled in the merger in exchange for a cash payment equal to: (a) the number of shares of Company common stock underlying the option, multiplied by (b) the excess, if any, of $2.18 over the per share exercise price of such option, which cash payment was $0.00 since this option had an exercise price that exceeded $2.18.

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