X0306 4 2022-06-20 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 Class A Common Stock 2022-06-20 4 M 0 2940 A 3440 D Class A Common Stock 2022-06-21 4 C 0 14614 A 18054 D Class A Common Stock 2022-06-21 4 S 0 6504 28.8951 D 11550 D Restricted Stock Units 2022-06-20 4 M 0 2940 0.00 D Class A Common Stock 2940 44104 D Restricted Stock Units 2022-06-20 4 M 0 6488 0.00 D Class B Common Stock 6488 64875 D Restricted Stock Units 2022-06-20 4 M 0 8126 0.00 D Class A Common Stock 8126 48750 D Class B Common Stock 2022-06-20 4 M 0 14614 0.00 A Class A Common Stock 14614 95294 D Class B Common Stock 2022-06-21 4 C 0 14614 0.00 D Class A Common Stock 14614 80680 D Class B Common Stock Class A Common Stock 15200000 15200000 I See footnote Class B Common Stock Class A Common Stock 2339030 2339030 I See footnote Class B Common Stock Class A Common Stock 709288 709288 I See footnote Each restricted stock unit, or RSU, represents a contingent right to receive one share of Issuer Class A Common Stock. Includes 500 shares acquired under the Issuer's employee stock purchase plan on June 15, 2022. 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 $28.51 to $29.28, 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 remaining RSUs vest in fifteen equal quarterly installments beginning on September 20, 2022. Each RSU represents a contingent right to receive one share of Issuer Class B Common Stock. The remaining RSUs vest in nine equal quarterly installments beginning on September 20, 2022. The remaining RSUs vest in six quarterly installments beginning on September 20, 2022. 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. /s/ Paul Warenski, by power of attorney 2022-06-22