X0609 4 2026-03-27 0 0001653482 Gitlab Inc. GTLB 0001181469 BOSTROM SUSAN L false C/O GITLAB INC. NOT APPLICABLE DE 1 0 0 0 0 Class A Common Stock 2026-03-27 4 S 0 10000 20.45 D 39819 D Class A Common Stock 2026-03-27 4 S 0 22500 20.32 D 17319 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.26 to $20.47, inclusive. The Reporting Person undertakes to provide to GitLab Inc., any security holder of GitLab Inc., or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote 1. Includes shares of Class A Common Stock has have not yet vested. /s/ Robin Schulman, Attorney-in-Fact for Susan L. Bostrom 2026-03-30