X0306 4 2022-12-20 0 0001720671 HashiCorp, Inc. HCP 0001894766 Sweeney Brandon C/O HASHICORP, INC 101 SECOND STREET, SUITE 700 SAN FRANCISCO CA 94105 0 1 0 0 Chief Revenue Officer Class A Common Stock 2022-12-20 4 M 0 3360 A 64576 D Class A Common Stock 2022-12-21 4 C 0 54325 A 118901 D Class A Common Stock 2022-12-21 4 S 0 22953 26.8473 D 95948 D Class A Common Stock 2022-12-21 4 S 0 5486 27.5657 D 90462 D Restricted Stock Units 2022-12-20 4 M 0 3360 0.00 D Class A Common Stock 3360 43684 D Restricted Stock Units 2022-12-20 4 M 0 4325 0.00 D Class B Common Stock 4325 34600 D Restricted Stock Units 2022-12-20 4 M 0 50000 0.00 D Class B Common Stock 50000 200000 D Class B Common Stock 2022-12-20 4 M 0 54325 0.00 A Class A Common Stock 54325 82441 D Class B Common Stock 2022-12-21 4 C 0 54325 0.00 D Class A Common Stock 54325 28116 D Each restricted stock unit, or RSU, represents a contingent right to receive one share of Issuer Class A Common Stock. Includes 351 shares acquired under the Issuer's Employee Stock Purchase Plan on December 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 $26.37 to $27.35, 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) and (5) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.37 to $27.83, inclusive. The remaining RSUs vest in thirteen equal quarterly installments beginning on March 30, 2023. Each RSU represents a contingent right to receive one share of Issuer Class B Common Stock. The remaining RSUs vest in eight equal quarterly installments beginning on March 30, 2023. The remaining RSUs vest in four equal quarterly installments beginning on March 30, 2023. /s/ Paul Warenski, by power of attorney 2022-12-22