X0609 4 2026-09-01 0 0001819576 Liquidia Corp LQDA 0002074990 Krepp Sarah false 419 DAVIS DRIVE, SUITE 100 MORRISVILLE NC 27560 0 1 0 0 Chief Human Resource Officer 1 Common Stock 2026-09-01 4 S 0 274 67.7603 D 117308 D 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 Restricted Stock Units ("RSUs"). Price is the volume weighted average price of all transactions made by the Reporting Person on the transaction date for prices ranging from $67.76 to $68.24. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Includes (i) 21,174 unvested restricted stock units ("RSUs") of the 61,465 RSUs granted to the Reporting Person on January 11, 2024, (ii) 6,229 unvested RSUs of the 12,459 RSUs granted to the Reporting Person on July 1, 2024, (iii) 31,787 unvested RSUs of the 50,861 RSUs granted to the Reporting Person on January 11, 2025, (iv) 18,750 unvested RSUs of the 25,000 RSUs granted to the Reporting Person on July 1, 2025, (v) 23,728 RSUs granted to the Reporting Person on January 16, 2026, none of which have vested as of the date of this Form 4, and (vi) 404 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan. /s/ Sarah Krepp 2026-09-03