LQDA

SEC source: 0001104659-25-072194 · tm2522031-2_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 193,180

F1 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F2 · shares: These shares were sold to cover taxes associated with the settlement of restricted stock units ("RSUs") that were initially granted to the Reporting Person on July 6, 2023.

F3 · balance_after: Includes (i) 12,500 unvested restricted stock units ("RSUs") of the 25,000 RSUs granted to the Reporting Person on July 6, 2023, (ii) 24,742 unvested RSUs of the 39,588 RSUs granted to the Reporting Person on January 11, 2024, (iii) 61,895 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,746 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-070027 · tm2521410-1_4seq1.xml · nonDerivative · entry 1

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 268,887

F1 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F2 · shares: These shares were sold to cover taxes associated with the settlement of restricted stock units ("RSUs") that were initially granted to the Reporting Person on July 18, 2022.

F3 · balance_after: Includes (i) 31,249 unvested RSUs of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (ii) 35,307 unvested RSUs of the 56,492 RSUs granted to the Reporting Person on January 11, 2024, (iii) 71,780 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4, and (iv) 6,291 shares of common stock acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068124 · tm2520991-8_4seq1.xml · nonDerivative · entry 2

Schundler Russell · CIK 0001854414 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 577,977

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: 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 and January 11, 2024.

F3 · balance_after: Includes (i) 39,062 unvested restricted stock units ("RSUs") of the 104,167 RSUs granted to the Reporting Person on January 11, 2023, (ii) 68,834 unvested RSUs of the 110,135 RSUs granted to the Reporting Person on January 11, 2024, (iii) 102,543 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,029 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068121 · tm2520991-5_4seq1.xml · nonDerivative · entry 1

Krepp Sarah · CIK 0002074990 · Chief Human Resource Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 142,499

F1 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F2 · shares: These shares were sold to cover taxes associated with the settlement of restricted stock units ("RSUs").

F3 · balance_after: Includes (i) 37,165 unvested RSUs of the 61,465 RSUs granted to the Reporting Person on January 11, 2024, (ii) 9,344 unvested RSUs of the 12,459 RSUs granted to the Reporting Person on July 1, 2024, (iii) 50,861 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of July 14, 2025, (iv) 25,000 RSUs granted to the Reporting Person on July 1, 2025, none of which have vested as of the date of this Form 4 and (v) 4,472 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068113 · tm2520991-2_4seq1.xml · nonDerivative · entry 1

Boyle Dana · CIK 0002074453 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,168

F1 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F2 · shares: These shares were sold to cover taxes associated with the settlement of restricted stock units ("RSUs").

F3 · balance_after: Includes (i) 2,826 unvested RSUs of the 15,075 RSUs granted to the Reporting Person on January 16, 2022, (ii) 21,875 unvested RSUs of the 50,000 RSUs granted to the Reporting Person on January 25, 2023, (iii) 35,678 unvested RSUs of the 57,085 RSUs granted to the Reporting Person on January 11, 2024, (iv) 50,861 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 (v) 25,000 RSUs granted to the Reporting Person on July 1, 2025, none of which have vested as of the date of this Form 4 and (vi) 11,029 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068123 · tm2520991-7_4seq1.xml · nonDerivative · entry 2

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 271,413

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares 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 and January 11, 2024.

F3 · balance_after: Includes (i) 5,865 unvested restricted stock units ("RSUs") of the 93,834 RSUs granted to the Reporting Person on July 18, 2022, (ii) 31,249 unvested RSUs of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (iii) 35,307 unvested RSUs of the 56,492 RSUs granted to the Reporting Person on January 11, 2024, (iv) 71,780 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4, and (v) 6,291 shares of common stock acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068118 · tm2520991-3_4seq1.xml · nonDerivative · entry 2

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,038,560

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares 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 and January 11, 2024.

F3 · balance_after: Includes (i) 108,562 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 138,336 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 229,327 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 9,856 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068117 · tm2520991-3_4seq1.xml · nonDerivative · entry 2

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,038,560

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares 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 and January 11, 2024.

F3 · balance_after: Includes (i) 108,562 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 138,336 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 229,327 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 9,856 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068120 · tm2520991-4_4seq1.xml · nonDerivative · entry 2

Kaseta Michael · CIK 0001724346 · CFO and COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 406,412

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: 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 and January 11, 2024.

F3 · balance_after: Includes (i) 46,750 unvested restricted stock units ("RSUs") of the 124,667 RSUs granted to the Reporting Person on January 11, 2023, (ii) 58,281 unvested RSUs and 31,250 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) 112,797 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,417 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068111 · tm2520991d1_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 193,634

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares 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 and January 11, 2024.

F3 · balance_after: Includes (i) 14,062 unvested restricted stock units ("RSUs") of the 25,000 RSUs granted to the Reporting Person on July 6, 2023, (ii) 24,742 unvested RSUs of the 39,588 RSUs granted to the Reporting Person on January 11, 2024, (iii) 61,895 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,746 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068122 · tm2520991-6_4seq1.xml · nonDerivative · entry 2

Moomaw Scott · CIK 0001832592 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 223,231

F5 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F4 · shares: These shares 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 and January 11, 2024.

F3 · balance_after: Includes (i) 31,249 unvested restricted stock units ("RSUs") of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (ii) 31,077 unvested RSUs of the 49,723 RSUs granted to the Reporting Person on January 11, 2024, (iii) 69,729 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,002 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068124 · tm2520991-8_4seq1.xml · derivative · entry 4

Schundler Russell · CIK 0001854414 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,584

Underlying: Common Stock · 3,759 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068124 · tm2520991-8_4seq1.xml · nonDerivative · entry 1

Schundler Russell · CIK 0001854414 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 585,813

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 60,135 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs shall vest ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 22,551 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 39,062 unvested restricted stock units ("RSUs") of the 104,167 RSUs granted to the Reporting Person on January 11, 2023, (ii) 68,834 unvested RSUs of the 110,135 RSUs granted to the Reporting Person on January 11, 2024, (iii) 102,543 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,029 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068123 · tm2520991-7_4seq1.xml · derivative · entry 3

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,307

Underlying: Common Stock · 3,531 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068123 · tm2520991-7_4seq1.xml · nonDerivative · entry 1

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 276,740

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 56,492 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 21,185 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 5,865 unvested restricted stock units ("RSUs") of the 93,834 RSUs granted to the Reporting Person on July 18, 2022, (ii) 31,249 unvested RSUs of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (iii) 35,307 unvested RSUs of the 56,492 RSUs granted to the Reporting Person on January 11, 2024, (iv) 71,780 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4, and (v) 6,291 shares of common stock acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068118 · tm2520991-3_4seq1.xml · derivative · entry 5

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 138,336

Underlying: Common Stock · 13,833 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068118 · tm2520991-3_4seq1.xml · nonDerivative · entry 1

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,058,812

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 221,338 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 83,002 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 108,562 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 138,336 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 229,327 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 9,856 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068117 · tm2520991-3_4seq1.xml · derivative · entry 5

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 138,336

Underlying: Common Stock · 13,833 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068117 · tm2520991-3_4seq1.xml · nonDerivative · entry 1

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,058,812

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 221,338 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 83,002 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 108,562 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 138,336 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 229,327 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 9,856 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068120 · tm2520991-4_4seq1.xml · derivative · entry 3

Kaseta Michael · CIK 0001724346 · CFO and COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,281

Underlying: Common Stock · 5,828 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068120 · tm2520991-4_4seq1.xml · nonDerivative · entry 1

Kaseta Michael · CIK 0001724346 · CFO and COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 417,992

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 93,250 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs shall vest ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 34,969 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 46,750 unvested restricted stock units ("RSUs") of the 124,667 RSUs granted to the Reporting Person on January 11, 2023, (ii) 58,281 unvested RSUs and 31,250 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) 112,797 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,417 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068111 · tm2520991d1_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,742

Underlying: Common Stock · 2,475 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068111 · tm2520991d1_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 196,210

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 39,588 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 14,846 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 14,062 unvested restricted stock units ("RSUs") of the 25,000 RSUs granted to the Reporting Person on July 6, 2023, (ii) 24,742 unvested RSUs of the 39,588 RSUs granted to the Reporting Person on January 11, 2024, (iii) 61,895 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,746 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-068122 · tm2520991-6_4seq1.xml · derivative · entry 3

Moomaw Scott · CIK 0001832592 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,077

Underlying: Common Stock · 3,107 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-068122 · tm2520991-6_4seq1.xml · nonDerivative · entry 1

Moomaw Scott · CIK 0001832592 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 228,028

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 49,723 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs shall vest ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 18,646 have vested as of the date of this Form 4.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 31,249 unvested restricted stock units ("RSUs") of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (ii) 31,077 unvested RSUs of the 49,723 RSUs granted to the Reporting Person on January 11, 2024, (iii) 69,729 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,002 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-086437 · tm2525033-2_4seq1.xml · derivative · entry 5

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,438

Underlying: Common Stock · 3,906 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: On January 11, 2023, the Reporting Person was granted 62,500 restricted stock units ("RSUs") with 25% of the RSUs vesting on January 11, 2024 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 39,063 have vested as of the date of this Form 4.

F1 · derivative.exercise_date: On January 11, 2023, the Reporting Person was granted 62,500 restricted stock units ("RSUs") with 25% of the RSUs vesting on January 11, 2024 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 39,063 have vested as of the date of this Form 4.

F1 · derivative.expiration_date: On January 11, 2023, the Reporting Person was granted 62,500 restricted stock units ("RSUs") with 25% of the RSUs vesting on January 11, 2024 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 39,063 have vested as of the date of this Form 4.

SEC source: 0001104659-25-086437 · tm2525033-2_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 197,086

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: On January 11, 2023, the Reporting Person was granted 62,500 restricted stock units ("RSUs") with 25% of the RSUs vesting on January 11, 2024 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 39,063 have vested as of the date of this Form 4.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 14,062 unvested restricted stock units ("RSUs") of the 25,000 RSUs granted to the Reporting Person on July 6, 2023, (ii) 24,742 unvested RSUs of the 39,588 RSUs granted to the Reporting Person on January 11, 2024, (iii) 61,895 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,746 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan. Prior to this filing, the Reporting Person had (i) 200,116 and 197,540 securities beneficially owned, not the previously erroneously disclosed number of 196,210 and 193,634, respectively, as disclosed in the Reporting Person's Form 4 filed on July 15,2025 in Table I, Column 5 and (ii) 197,086 securities beneficially owned, not the previously erroneously disclosed number of 193,180 as disclosed in the Reporting Person's Form 4 filed on July 30,2025 in Table I, Column 5.

SEC source: 0001104659-25-065705 · tm2519766-4_4seq1.xml · nonDerivative · entry 1

Krepp Sarah · CIK 0002074990 · Chief Human Resource Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,172

F1 · kind: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

F2 · shares: 25% of the RSUs shall vest on July 11, 2026 and the remaining RSUs shall vest ratably on a quarterly basis over three years thereafter.

F3 · balance_after: Includes (i) 40,381 unvested RSUs of the 61,465 RSUs granted to the Reporting Person on January 11, 2024, (ii) 12,459 RSUs granted to the Reporting Person on July 1, 2024, none of which have vested as of July 1, 2025, (iii) 50,861 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of July 1, 2025 and (iv) 4,472 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-065704 · tm2519766d3_4seq1.xml · nonDerivative · entry 1

Boyle Dana · CIK 0002074453 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 188,361

F1 · kind: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

F2 · shares: 25% of the RSUs shall vest on July 11, 2026 and the remaining RSUs shall vest ratably on a quarterly basis over three years thereafter.

F3 · balance_after: Includes (i) 2,826 unvested RSUs of the 15,075 RSUs granted to the Reporting Person on January 16, 2022, (ii) 21,875 unvested RSUs of the 50,000 RSUs granted to the Reporting Person on January 25, 2023, (iii) 39,245 unvested RSUs of the 57,085 RSUs granted to the Reporting Person on January 11, 2024, (iv) 50,861 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of July 1, 2025 and (v) 11,029 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-061194 · tm2518541-7_4seq1.xml · nonDerivative · entry 1

SINGH RAMAN · CIK 0001747589 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,755

F1 · kind: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0001104659-25-061191 · tm2518541-5_4seq1.xml · nonDerivative · entry 6

Manning Paul B · CIK 0001494695 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,755

F6 · balance_after: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis. The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0001104659-25-061190 · tm2518541-4_4seq1.xml · nonDerivative · entry 1

Kirsch Arthur S · CIK 0001290976 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,755

F1 · kind: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0001104659-25-061183 · tm2518541-1_4seq1.xml · nonDerivative · entry 1

Bloch Stephen M · CIK 0001400308 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,755

F1 · kind: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0001104659-25-061188 · tm2518541-3_4seq1.xml · nonDerivative · entry 1

Horobin Joanna · CIK 0001560959 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,755

F1 · kind: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0000902664-25-002766 · ownership.xml · nonDerivative · entry 1

JOHNSON DAVID EDWARD · CIK 0001785557 · Director · 10% owner · See Remarks

Caligan Partners LP · CIK 0001727492 · Director · 10% owner · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,755

F1 · kind: Restricted stock units ("RSUs") convert into Common Stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

F3 · ownership.direct: David Johnson ("Mr. Johnson") is deemed to hold the securities reported herein for the benefit of certain funds (the "Caligan Funds") and managed accounts (the "Caligan Accounts", and together with the Caligan Funds, the "Caligan Funds and Accounts") to which Caligan Partners LP ("Caligan") serves as investment manager, and may, after vesting, if applicable, transfer the securities directly to such Caligan Funds and Accounts.

SEC source: 0001104659-25-061193 · tm2518541-6_4seq1.xml · nonDerivative · entry 1

Rielly-Gauvin Katherine · CIK 0001791718 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,755

F1 · kind: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0001104659-25-061186 · tm2518541-2_4seq1.xml · nonDerivative · entry 1

deGoa Damian · CIK 0001836165 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,471

F1 · kind: Restricted stock units ("RSUs") convert into common stock on a one-for-one basis.

F2 · shares: The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

SEC source: 0001104659-25-056856 · tm2517227-6_4seq1.xml · nonDerivative · entry 2

Schundler Russell · CIK 0001854414 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 582,054

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares of common stock were sold to cover taxes associated with the settlement of PSUs that were initially granted to the Reporting Person on January 11, 2024.

F3 · balance_after: Includes (i) 45,573 unvested restricted stock units ("RSUs") of the 104,167 RSUs granted to the Reporting Person on January 11, 2023, (ii) 75,718 unvested RSUs of the 110,135 RSUs granted to the Reporting Person on January 11, 2024, (iii) 102,543 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,029 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056855 · tm2517227-5_4seq1.xml · nonDerivative · entry 2

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 273,209

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares were sold to cover taxes associated with the settlement of PSUs that were initially granted to the Reporting Person on January 11, 2024.

F3 · balance_after: Includes (i) 5,865 unvested restricted stock units ("RSUs") of the 93,834 RSUs granted to the Reporting Person on July 18, 2022, (ii) 36,458 unvested RSUs of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (iii) 38,838 unvested RSUs of the 56,492 RSUs granted to the Reporting Person on January 11, 2024, (iv) 71,780 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested, and (v) 6,291 shares of common stock acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056845 · tm2517227-2_4seq1.xml · nonDerivative · entry 2

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,044,979

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares were sold to cover taxes associated with the settlement of PSUs that were initially granted to the Reporting Person on January 11, 2024.

F3 · balance_after: Includes (i) 126,656 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 152,169 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 229,327 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 9,856 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056848 · tm2517227-3_4seq1.xml · nonDerivative · entry 2

Kaseta Michael · CIK 0001724346 · CFO and COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 412,164

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares of common stock were sold to cover taxes associated with the settlement of PSUs that were initially granted to the Reporting Person on January 11, 2024.

F3 · balance_after: Includes (i) 54,542 unvested restricted stock units ("RSUs") of the 124,667 RSUs granted to the Reporting Person on January 11, 2023, (ii) 64,109 unvested RSUs and 34,375 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) 112,797 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,417 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056837 · tm2517227-1_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 193,735

F4 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F5 · shares: These shares were sold to cover taxes associated with the settlement of PSUs that were initially granted to the Reporting Person on January 11, 2024.

F3 · balance_after: Includes (i) 14,062 unvested restricted stock units ("RSUs") of the 25,000 RSUs granted to the Reporting Person on July 6, 2023, (ii) 27,217 unvested RSUs of the 39,588 RSUs granted to the Reporting Person on January 11, 2024, (iii) 61,895 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 10,746 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056851 · tm2517227-4_4seq1.xml · nonDerivative · entry 2

Moomaw Scott · CIK 0001832592 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 224,921

F5 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F4 · shares: These shares were sold to cover taxes associated with the settlement of PSUs that were initially granted to the Reporting Person on January 11, 2024.

F3 · balance_after: Includes (i) 36,458 unvested restricted stock units ("RSUs") of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (ii) 34,184 unvested RSUs of the 49,723 RSUs granted to the Reporting Person on January 11, 2024, (iii) 69,729 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,002 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056856 · tm2517227-6_4seq1.xml · derivative · entry 4

Schundler Russell · CIK 0001854414 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,343

Underlying: Common Stock · 18,792 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-056856 · tm2517227-6_4seq1.xml · nonDerivative · entry 1

Schundler Russell · CIK 0001854414 · General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 590,514

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 60,135 PSUs which vest upon the later of (A) the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs shall vest ratably on a quarterly basis over three years thereafter and (B) the first commercial sale of YUTREPIA by the Issuer. Of those PSUs, a total of 18,792 have vested through June 3, 2025.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 45,573 unvested restricted stock units ("RSUs") of the 104,167 RSUs granted to the Reporting Person on January 11, 2023, (ii) 75,718 unvested RSUs of the 110,135 RSUs granted to the Reporting Person on January 11, 2024, (iii) 102,543 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 11,029 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056855 · tm2517227-5_4seq1.xml · derivative · entry 3

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,838

Underlying: Common Stock · 17,654 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-056855 · tm2517227-5_4seq1.xml · nonDerivative · entry 1

Saggar Rajeev · CIK 0001935638 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 280,806

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 56,492 PSUs which vest upon the later of (A) the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter and (B) the first commercial sale of YUTREPIA by the Issuer. Of those PSUs, a total of 17,654 have vested through June 3, 2025.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 5,865 unvested restricted stock units ("RSUs") of the 93,834 RSUs granted to the Reporting Person on July 18, 2022, (ii) 36,458 unvested RSUs of the 83,333 RSUs granted to the Reporting Person on January 11, 2023, (iii) 38,838 unvested RSUs of the 56,492 RSUs granted to the Reporting Person on January 11, 2024, (iv) 71,780 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested, and (v) 6,291 shares of common stock acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056845 · tm2517227-2_4seq1.xml · derivative · entry 5

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 152,169

Underlying: Common Stock · 69,169 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

SEC source: 0001104659-25-056845 · tm2517227-2_4seq1.xml · nonDerivative · entry 1

JEFFS ROGER · CIK 0001231615 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,075,589

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: On January 11, 2024, the Reporting Person was granted 221,338 PSUs which vest upon the later of (A) the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter and (B) the first commercial sale of YUTREPIA by the Issuer. Of those PSUs, a total of 69,169 have vested through June 3, 2025.

F1 · price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (i) 126,656 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 152,169 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 229,327 RSUs granted to the Reporting Person on January 11, 2025, none of which have vested as of the date of this Form 4 and (iv) 9,856 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-25-056848 · tm2517227-3_4seq1.xml · derivative · entry 3

Kaseta Michael · CIK 0001724346 · CFO and COO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,109

Underlying: Common Stock · 29,141 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.exercise_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.

F1 · derivative.expiration_date: Performance stock units ("PSUs") convert into common stock on a one-for-one basis.