144 0001914883 XXXXXXXX LIVE 0001880438 AN2 Therapeutics, Inc. 001-41331 1300 EL CAMINO REAL, SUITE 100 MENLO PARK CA 94025 (650) 331-9090 Readnour Robin Shane Director Common Stock Stifel Nicolaus & Company Inc

501 N Broadway St. Louis MO 63102

1012000 6080268.00 37736237 08/17/2026 Nasdaq Common Stock 11/19/2019 Owned Shares Issuer N 577700 11/19/2019 Owned Shares Common Stock 10/05/2020 Owned Shares Issuer N 185497 10/05/2020 Owned Shares Common Stock 03/05/2021 Owned Shares Issuer N 133230 03/05/2021 Owned Shares Common Stock 03/25/2022 Owned Shares Issuer N 153334 03/25/2022 Owned Shares Y Shares sold under MGC Venture Partners 2018, LP and MGC Venture Partners QP 2018, LP pursuant to their respective 10b5-1 plan 08/17/2026 04/23/2026 /s/ Azad Daswani, as a duly authorized representative of STIFEL, as attorney-in-fact for Robin Readnor