X0609 4 2026-07-10 0 0001819576 Liquidia Corp LQDA 0001724346 Kaseta Michael false 419 DAVIS DRIVE, SUITE 100 MORRISVILLE NC 27560 0 1 0 0 CFO and COO 1 Common Stock 2026-07-10 4 M 0 5829 A 359185 D Common Stock 2026-07-10 4 M 0 7050 A 366235 D Common Stock 2026-07-13 4 S 0 1453 71.39 D 364782 D Common Stock 2026-07-13 4 S 0 18977 71.52 D 345805 D Performance Stock Units 2026-07-10 4 M 0 5829 0 D Common Stock 5829 34968 D Performance Stock Units 2026-07-10 4 M 0 7050 0 D Common Stock 7050 70497 D Performance stock units ("PSUs") convert into common stock on a one-for-one basis. On January 11, 2024, the Reporting Person was granted 93,250 PSUs with 25% of the PSUs vesting on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 58,282 have vested as of the date of this Form 4. Includes (i) 15,583 unvested restricted stock units ("RSUs") of the 124,667 RSUs granted to the Reporting Person on January 11, 2023, (ii) 34,968 unvested RSUs and 18,750 unvested RSUs of the 93,250 RSUs and 50,000 RSUs granted to the Reporting Person on January 11, 2024 and January 15, 2024, respectively, (iii) 70,497 unvested RSUs of the 112,797 RSUs granted to the Reporting Person on January 11, 2025, (iv) 59,320 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) 2,650 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan ("ESPP"). On January 11, 2025, the Reporting Person was granted 112,797 PSUs with 25% of the PSUs vesting on January 11, 2026 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 42,300 have vested as of the date of this Form 4. Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023. These shares of common stock were sold to cover taxes associated with the settlement of RSUs and PSUs that were initially granted to the Reporting Person on January 11, 2023, January 11, 2024, January 15, 2024 and January 11, 2025. /s/ Michael Kaseta 2026-07-14