X0508 4 2023-09-20 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 0 Class A Common Stock 2023-09-20 4 M 0 11897 A 38994 D Class A Common Stock 2023-09-21 4 C 0 14611 A 53605 D Class A Common Stock 2023-09-21 4 S 0 14023 23.0711 D 39582 D Class A Common Stock 1748000 I See footnote Class A Common Stock 281994 I See footnote Class A Common Stock 90440 I See footnote Restricted Stock Units 2023-09-20 4 M 0 2940 0.00 D Class A Common Stock 2940 29403 D Restricted Stock Units 2023-09-20 4 M 0 8957 0.00 D Class A Common Stock 8957 125404 D Restricted Stock Units 2023-09-20 4 M 0 6487 0.00 D Class B Common Stock 6487 32438 D Restricted Stock Units 2023-09-20 4 M 0 8124 0.00 D Class B Common Stock 8124 8126 D Class B Common Stock 2023-09-20 4 M 0 14611 0.00 A Class A Common Stock 14611 495527 D Class B Common Stock 2023-09-21 4 C 0 14611 0.00 D Class A Common Stock 14611 480916 D Class B Common Stock Class A Common Stock 13262000 12844000 I See footnote Class B Common Stock Class A Common Stock 2057036 2057036 I See footnote Class B Common Stock Class A Common Stock 621768 601328 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 $22.91 to $23.255, 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. The shares are held of record by the Armon Dadgar 2020 Charitable Trust. 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 ten equal quarterly installments beginning on December 20, 2023. The remaining RSUs vest in fourteen equal quarterly installments beginning on December 20, 2023. Each RSU represents a contingent right to receive one share of Issuer Class B Common Stock. The remaining RSUs vest in five equal quarterly installments beginning on December 20, 2023. The remaining RSUs vest on December 20, 2023. /s/ Paul Warenski, by power of attorney 2023-09-22