X0206 3 2023-10-19 1 0001827506 Tourmaline Bio, Inc. TRML 0001998199 Chester Cariad C/O TOURMALINE BIO, INC. 27 WEST 24TH STREET, SUITE 702 NEW YORK NY 10010 1 0 0 0 No Table I or Table II securities beneficially owned Exhibit List - Exhibit 24 - Power of Attorney /s/ Brad Middlekauff, Attorney-in-Fact 2023-10-23