144 0001805735 XXXXXXXX LIVE 0001611052 PROCORE TECHNOLOGIES, INC. 001-40396 6309 CARPINTERIA AVE. CARPINTERIA CA 93013 866-477-6267 Craig F. Jr. Courtemanche Director CHAIRMAN OF THE BOARD Common Stock Citigroup Global Markets Inc.

390 Greenwich Street New York NY 10013

1700000 82569000 150890216 06/08/2026 NYSE Common Stock 08/20/2014 Private Placement Procore Technologies, Inc. N 1700000 08/20/2014 Cash N Craig F. Courtemanche, Jr.

c/o Procore Technologies, inc. 6309 Carpinteria Ave. Carpinteria CA 93013

Common Stock 03/10/2026 56121 3211945.13 Craig F. Courtemanche, Jr.

c/o Procore Technologies, Inc. 6309 Carpinteria Ave. Carpinteria CA 93013

Common Stock 04/10/2026 56122 2673680.14 Craig F. Courtemanche, Jr.

c/o Procore Technologies, Inc. 6309 Carpinteria Ave. Carpinteria CA 93013

Common Stock 05/11/2026 56122 2865392.89 In accordance with the procedures described in the SEC staff interpretive letters to Goldman Sachs & Co. (12/20/99) and Bank of America Merrill Lynch (12/1/11), the Craig F. Courtemanche and Hillary Courtemanche Family Trust dated as of November 1, 2012 (up to 1,190,000 shares) and the Courtemanche 2021 Irrevocable Trust UA DTD 6/10/2021 (up to 510,000 shares) (collectively, "Holders") entered into share collar transaction contracts and pledge arrangements with an affiliate of the broker named in Part 3(b) above relating to up to 1,700,000 shares. This Form 144 relates to such broker's initial hedging activity. Shares being transacted are for the account of the Holders. 06/08/2026 /s/ Craig F. Courtemanche, Jr.