X0609 4 2026-08-31 0001615219 Decoy Therapeutics Inc. DCOY 0002079859 Marschel Peter Klaus false 2450 HOLCOMBE BLVD STE X HOUSTON TX 77021 false true false false Chief Business Officer false Common Stock 2026-08-31 4 A false 3900 0 A 3900 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. /s/Mark Rosenblum, as Attorney -in-Fact 2026-09-02