X0609 4 2026-08-31 0001615219 Decoy Therapeutics Inc. DCOY 0001229055 PIERCE FREDERICK II false 2450 HOLCOMBE BLVD STE X HOUSTON TX 77021 false true false false Chief Executive Officer false Common Stock 2026-08-31 4 A false 33455 0 A 34844 D Restricted stock granted under the Decoy Therapeutics Inc. 2026 Equity Incentive Plan. 25 percent of the restricted stock vested immediately, and the remainder will vest in approximately equal monthly increments over the next 36 months. Shares beneficially owned following the transaction have been adjusted to reflect the reverse stock split effective on March 6, 2026. /s/Mark Rosenblum, as Attorney -in-Fact 2026-09-02