0001839970 2026-07-30 2026-07-30 0001839970 1 2026-07-30 2026-07-30 0001839970 2 2026-07-30 2026-07-30 iso4217:USD pure shares S-1 S-1/A EX-FILING FEES 333-297512 0001839970 BlossomHill Therapeutics, Inc. N/A N/A S-1 BlossomHill Therapeutics, Inc. false Equity Common Stock, $0.0001 par value per share true 3102023 17.00 52734391.00 0.0001381 7282.62 true Equity Common Stock, $0.0001 par value per share true 5882352 17.00 99999984.00 13810.00 152734375.00 21092.62 13810.00 0.00 7282.62 (a) Maximum Aggregate Offering Price estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act of 1933, as amended (Securities Act). (b) Includes the aggregate offering price of additional shares that the underwriters have the option to purchase or additional shares that may be issued if the number of shares included in this offering is increased. (a) The Registrant previously paid a registration fee of $13,810.00 in connection with initial filing of the Registration Statement on Form S-1 on July 17, 2026. The fee was estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(o) under the Securities Act. This Maximum Aggregate Offering Price was originally estimated pursuant to Rule 457(o) under the Securities Act and is now converted to Rule 457(a) under the Securities Act. (b) See note 1(b) above.