X0508 4 2026-02-27 0 0001819576 Liquidia Corp LQDA 0001832592 Moomaw Scott 419 DAVIS DRIVE, SUITE 100 MORRISVILLE NC 27560 0 1 0 0 Chief Commercial Officer 1 Common Stock 2026-02-27 4 M 0 1875 A 189781 D Common Stock 2026-03-02 4 S 0 827 30.58 D 188954 D Restricted Stock Units 2026-02-27 4 M 0 1875 0 D Common Stock 1875 0 D Restricted stock units ("RSUs") convert into common stock on a one-for-one basis. On January 16, 2022, the Reporting Person was granted 30,000 RSUs with 25% of the RSUs vesting on February 28, 2023 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 30,000 have vested as of the date of this Form 4. Includes (i) 20,833 unvested RSUs of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (ii) 24,861 unvested RSUs of the 49,723 RSUs granted to the Reporting Person on January 11, 2024, (iii) 52,296 unvested RSUs of the 69,729 RSUs granted to the Reporting Person on January 11, 2025, (iv) 32,955 RSUs granted to the Reporting Person on January 16, 2026, none of which have vested as of the date of this Form 4 and (v) 3,964 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan. Transactions effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 13, 2022. These shares of common stock were sold to cover taxes associated with the settlement of RSUs that were initially granted to the Reporting Person on January 16, 2022. /s/ Scott Moomaw 2026-03-03