X0407 4 2023-03-20 0 0001720671 HashiCorp, Inc. HCP 0001894706 Welihinda Navam C/O HASHICORP, INC. 101 SECOND STREET, SUITE 700 SAN FRANCISCO CA 94105 0 1 0 0 Chief Financial Officer 1 Class A Common Stock 2023-03-20 4 M 0 3361 A 11212 D Class A Common Stock 2023-03-21 4 C 0 7568 A 18780 D Class A Common Stock 2023-03-21 4 S 0 5332 29.8712 D 13448 D Class A Common Stock 2023-03-22 4 S 0 2797 28.8047 D 10651 D Class A Common Stock 2023-03-22 4 S 0 2800 29.4086 D 7851 D Restricted Stock Units 2023-03-20 4 M 0 3361 0.00 D Class A Common Stock 3361 40323 D Restricted Stock Units 2023-03-20 4 M 0 7568 0.00 D Class B Common Stock 7568 52982 D Class B Common Stock 2023-03-20 4 M 0 7568 0.00 A Class A Common Stock 7568 187596 D Class B Common Stock 2023-03-21 4 C 0 7568 0.00 D Class A Common Stock 7568 180028 D 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 $29.48 to $30.13, 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) and (7) 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 $28.17 to $29.10, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.19 to $29.86, inclusive. The remaining RSUs vest in twelve equal quarterly installments beginning on June 20,2023. Each RSU represents a contingent right to receive one share of Class B Common Stock. The remaining RSUs vest in seven equal quarterly installments beginning on June 20, 2023. Due to a scrivenor's error in a prior Form 4, the number of derivative securities following the reported transaction has been increased by 100 RSUs. /s/ Paul Warenski, by power of attorney 2023-03-22