X0407 4 2023-03-20 0 0001720671 HashiCorp, Inc. HCP 0001894717 Dadgar Armon C/O HASHICORP, INC. 101 SECOND STREET, SUITE 700 SAN FRANCISCO CA 94105 1 1 0 0 Chief Technology Officer 1 Class A Common Stock 2023-03-20 4 M 0 2941 A 25610 D Class A Common Stock 2023-03-21 4 C 0 14611 A 40221 D Class A Common Stock 2023-03-21 4 S 0 4206 29.8778 D 36015 D Class A Common Stock 2023-03-22 4 S 0 6375 28.8011 D 29640 D Class A Common Stock 2023-03-22 4 S 0 6971 29.4121 D 22669 D Class A Common Stock 2023-03-22 4 S 0 17573 28.7903 D 1730427 I See footnote Class A Common Stock 2023-03-22 4 S 0 20427 29.4033 D 1710000 I See footnote Class A Common Stock 281994 I See footnote Class A Common Stock 70000 I See footnote Restricted Stock Units 2023-03-20 4 M 0 2941 0.00 D Class A Common Stock 2941 35283 D Restricted Stock Units 2023-03-20 4 M 0 6487 0.00 D Class B Common Stock 6487 45413 D Restricted Stock Units 2023-03-20 4 M 0 8124 0.00 D Class B Common Stock 8124 24376 D Class B Common Stock 2023-03-20 4 M 0 14611 0.00 A Class A Common Stock 14611 495527 D Class B Common Stock 2023-03-20 4 C 0 14611 0.00 D Class A Common Stock 14611 480916 D Class B Common Stock Class A Common Stock 13262000 13262000 I See footnote Class B Common Stock Class A Common Stock 2057036 2057036 I See footnote Class B Common Stock Class A Common Stock 633448 633448 I See footnote Each restricted stock unit, or RSU, represents a contingent right to receive one share of Class A Common Stock. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date. The reported shares were sold to satisfy the reporting person's tax obligations in connection with the vesting of RSUs. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.54 to $30.14, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4), (6), (7) and (10) to this Form 4. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on January 21, 2022. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.16 to $29.15, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.20 to $29.89, inclusive.. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 6, 2022. The shares are held of record by the Armon Dadgar 2020 Charitable Trust. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.16 to $29.98, inclusive The shares are held of record by the Armon Memaran-Dadgar Living Trust for which the reporting person serves as trustee. The shares are held of record by Black Swan III, LLC which the reporting person controls. The remaining RSUs vest in twelve equal quarterly installments beginning on June 20, 2023. The remaining RSUs vest in seven equal quarterly installments beginning on June 20, 2023. The remaining RSUs vest in three quarterly installments beginning on June 20, 2023. /s/ Paul Warenski, by power of attorney 2023-03-22