X0508 4 2023-09-20 0 0001653482 Gitlab Inc. GTLB 0001783518 Jacobson Matthew C/O ICONIQ CAPITAL 50 BEALE ST., STE. 2300 SAN FRANCISCO CA 94105 1 0 1 0 0 Class A Common Stock 2023-09-20 4 S 0 33564 48.3662 D 657578 I By ICONIQ Strategic Partners IV, L.P. Class A Common Stock 2023-09-20 4 S 0 55613 48.3662 D 1089531 I By ICONIQ Strategic Partners IV-B, L.P. Class A Common Stock 1298646 I By ICONIQ Strategic Partners III, L.P. Class A Common Stock 1387619 I By ICONIQ Strategic Partners III-B, L.P. Class A Common Stock 146206 I By ICONIQ Strategic Partners V, L.P. Class A Common Stock 223388 I By ICONIQ Strategic Partners V-B, L.P. Class A Common Stock 429104 I By ICONIQ Strategic Partners VI, L.P. Class A Common Stock 535503 I By ICONIQ Strategic Partners VI-B, L.P. Class A Common Stock 334827 I By ICONIQ Investment Holdings, LP Class A Common Stock 312058 D The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.33 to $48.50. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request. The shares are held by ICONIQ Strategic Partners IV, L.P. ("ICONIQ IV"). ICONIQ Strategic Partners III GP, L.P. ("ICONIQ III GP") is the sole general partner of each of ICONIQ Strategic Partners III, L.P. ("ICONIQ III") and ICONIQ Strategic Partners III-B, L.P. ("ICONIQ III-B"). ICONIQ Strategic Partners III TT GP, Ltd. ("ICONIQ III Parent GP") is the sole general partner of ICONIQ III GP. ICONIQ Strategic Partners IV GP, L.P. ("ICONIQ IV GP") is the sole general partner of each of ICONIQ IV and ICONIQ Strategic Partners IV-B, L.P. ("ICONIQ IV-B"). ICONIQ Strategic Partners IV TT GP, Ltd. ("ICONIQ IV Parent GP") is the sole general partner of ICONIQ IV GP. ICONIQ Strategic Partners V GP, L.P. ("ICONIQ V GP") is the sole general partner of each of ICONIQ Strategic Partners V, L.P. ("ICONIQ V") and ICONIQ Strategic Partners V-B, L.P. ("ICONIQ V-B"). ICONIQ Strategic Partners V TT GP, Ltd. ("ICONIQ V Parent GP") is the sole general partner of ICONIQ V GP. (continued) ICONIQ Strategic Partners VI GP, L.P. ("ICONIQ VI GP") is the sole general partner of each of ICONIQ Strategic Partners VI, L.P. ("ICONIQ VI") and ICONIQ Strategic Partners VI-B, L.P. ("ICONIQ VI-B"). ICONIQ Strategic Partners VI TT GP, Ltd. ("ICONIQ VI Parent GP") is the sole general partner of ICONIQ VI GP. ICONIQ Capital Group GP, LLC ("ICONIQ Investment GP") is the general partner of ICONIQ Investment Holdings, LP ("ICONIQ Investment"). Divesh Makan ("Makan") is the sole member of ICONIQ Investment GP. Makan and William J.G. Griffith ("Griffith") are the sole equity holders of ICONIQ III Parent GP. Makan, Griffith and Matthew Jacobson ("Jacobson") are the sole equity holders of each of ICONIQ IV Parent GP, ICONIQ V Parent GP and ICONIQ VI Parent GP. Each of ICONIQ III GP, ICONIQ III Parent GP, ICONIQ IV GP, ICONIQ IV Parent GP, ICONIQ V GP, ICONIQ V Parent GP, ICONIQ VI GP, ICONIQ VI Parent GP, ICONIQ Investment GP, Makan, Griffith and Jacobson disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Exchange Act, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. The shares are held by ICONIQ IV-B. The shares are held by ICONIQ III. The shares are held by ICONIQ III-B. The shares are held by ICONIQ V. The shares are held by ICONIQ V-B. The shares are held by ICONIQ VI. The shares are held by ICONIQ VI-B. The shares are held by ICONIQ Investment. The shares are held by the Reporting Person through a trust of which he is a trustee. The Reporting Person disclaims beneficial ownership of the shares held by such trust for purposes of Section 16 of the Exchange Act, except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the Reporting Person is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose. /s/ Matthew Jacobson 2023-09-22