X0508 4 2026-01-21 0001701541 Black Diamond Therapeutics, Inc. BDTX 0001895913 Jones Erika C/O BLACK DIAMOND THERAPEUTICS, INC. 245 FIRST STREET, 18TH FLOOR CAMBRIDGE MA 02142 false true false false SEE REMARKS 0 Stock Option (Right to Buy) 2.57 2026-01-21 4 A 0 200000 0 A 2036-01-20 Common Stock 200000 200000 D 25% of the shares subject to this option shall vest and become exercisable on January 21, 2027, with the remainder vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date. Officer Title: Senior Vice President, Finance and Corporate Controller /s/ Brent Hatzis-Schoch, Attorney-in-Fact 2026-01-23