X0609 4 2026-06-01 0 0001819576 Liquidia Corp LQDA 0001290976 KIRSCH ARTHUR S false 419 DAVIS DRIVE, SUITE 100 MORRISVILLE NC 27560 1 0 0 0 0 Common Stock 40755 D Common Stock 2026-06-01 4 S 0 15000 60.22 D 15000 I Through Revocable Trust of Arthur S. Kirsch Common Stock 2026-06-02 4 S 0 5000 56.00 D 10000 I Through Revocable Trust of Arthur S. Kirsch Common Stock 2026-06-03 4 S 0 10000 54.80 D 0 I Through Revocable Trust of Arthur S. Kirsch Price is the volume weighted average price of all transactions made by the Reporting Person on the transaction date for prices ranging from $59.90 to $60.75. 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. /s/ Arthur S. Kirsch 2026-06-03