X0508 4 2025-10-27 0 0001819576 Liquidia Corp LQDA 0002074453 Boyle Dana 419 DAVIS DRIVE, SUITE 100 MORRISVILLE NC 27560 0 1 0 0 Chief Accounting Officer 1 Common Stock 2025-10-27 4 S 0 1073 22.93 D 184338 D Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023. These shares were sold to cover taxes associated with the settlement of restricted stock units ("RSUs") that were initially granted to the Reporting Person on January 25, 2023. Includes (i) 1,884 unvested RSUs of the 15,075 RSUs granted to the Reporting Person on January 16, 2022, (ii) 15,625 unvested RSUs of the 50,000 RSUs granted to the Reporting Person on January 25, 2023, (iii) 32,110 unvested RSUs of the 57,085 RSUs granted to the Reporting Person on January 11, 2024, (iv) 50,861 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 (v) 25,000 RSUs granted to the Reporting Person on July 1, 2025, none of which have vested as of the date of this Form 4 and (vi) 11,869 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan. /s/ Dana Boyle 2025-10-29