X0508 4 2023-08-11 0 0001253176 VAPOTHERM INC VAPO 0001435005 Army Joseph 100 DOMAIN DRIVE EXETER NH 03833 1 1 0 0 President and CEO 0 Common Stock 2023-08-11 4 P 0 216879 0.3892 A 1853648 D Common Stock 2023-08-14 4 P 0 21939 0.3995 A 1875587 D Common Stock 2023-08-15 4 P 0 61182 0.4199 A 1936769 D Common Stock 325000 I Kimberly D. Army Revocable Trust Common Stock 500 I By spouse The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.37 to $0.40, inclusive. The reporting person undertakes to provide to Vapotherm, Inc., any security holder of Vapotherm, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4. Includes 9,233 shares that will be issued over time upon vesting pursuant to restricted stock units granted under the Vapotherm, Inc. 2018 Equity Incentive Plan, as amended from time to time. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.3965 to $0.40, inclusive. The reporting person undertakes to provide to Vapotherm, Inc., any security holder of Vapotherm, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.4049 to $0.43, inclusive. The reporting person undertakes to provide to Vapotherm, Inc., any security holder of Vapotherm, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote (4) to this Form 4. /s/ Adrain Bryant, as attorney-in-fact 2023-08-15