X0609 4 2026-05-21 0 0001819576 Liquidia Corp LQDA 0001747589 SINGH RAMAN false 419 DAVIS DRIVE, SUITE 100 MORRISVILLE NC 27560 1 0 0 0 0 Common Stock 2026-05-21 4 M 0 19444 8.63 A 58199 D Common Stock 2026-05-21 4 M 0 10050 11.00 A 68249 D Common Stock 2026-05-21 4 S 0 29494 60.1287 D 38755 D Non-Qualified Stock Option (right to buy) 8.63 2026-05-21 4 M 0 19444 0 D 2026-05-19 2033-06-19 Common Stock 19444 556 D Non-Qualified Stock Option (right to buy) 11.00 2026-05-21 4 M 0 10050 0 D 2021-07-30 2028-07-30 Common Stock 10000 0 D Includes 18,396 restricted stock units granted to the Reporting Person on June 17, 2025, none of which have vested as of the date of this Form 4. Represents the subsequent sale of the underlying shares from the exercise of stock options reported on this Form 4. Price is the volume weighted average price of all transactions made by the Reporting Person on the transaction date for prices ranging from $59.95 to $60.38. 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. Represents the date exercisable applicable to the exercise of stock options reported on this Form 4. The option vests in 36 equal monthly installments and will become fully vested on June 19, 2026. The option vested in 36 equal monthly installments and became fully vested on July 30, 2021. /s/ Raman Singh 2026-05-26