Adair Jason

SEC source: 0001104659-24-079926 · tm2419492-4_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,226

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 that were initially granted to the Reporting Person on January 11, 2023.

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-079926 · tm2419492-4_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,062

Underlying: Common Stock · 3,907 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-24-079926 · tm2419492-4_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 116,372

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, 2023, the Reporting Person was granted 62,500 RSUs with 25% of the RSUs vesting on the one-year anniversary of the date of grant and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 23,438 have vested through July 11, 2024.

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

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-068421 · tm2416451-3_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 112,465

F4 · shares: These shares were sold to cover taxes associated with the settlement of RSUs.

F5 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 13, 2022.

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-068421 · tm2416451-3_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,937

Underlying: Common Stock · 1,563 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-24-068421 · tm2416451-3_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 112,920

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 16, 2022, the Reporting Person was granted 25,000 RSUs with 25% of the RSUs vesting on February 28, 2023 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 14,063 have vested through May 31, 2024.

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

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-047412 · tm2411915-1_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 111,537

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 that were initially granted to the Reporting Person on January 11, 2023.

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-047412 · tm2411915-1_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,969

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

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

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

SEC source: 0001104659-24-047412 · tm2411915-1_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 112,546

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, 2023, the Reporting Person was granted 62,500 RSUs with 25% of the RSUs vesting on the one-year anniversary of the date of grant and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 19,531 have vested through April 11, 2024.

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

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-036353 · tm247887-8_4seq1.xml · derivative · entry 6

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 260 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-24-036353 · tm247887-8_4seq1.xml · nonDerivative · entry 4

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 108,640

F7 · kind: These shares were sold to cover taxes associated with the settlement of RSUs that were initially granted to the Reporting Person on March 18, 2020.

F8 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 4, 2020.

F4 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-036353 · tm247887-8_4seq1.xml · nonDerivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 108,716

F5 · kind: These shares were sold to cover taxes associated with the settlement of RSUs that were initially granted to the Reporting Person on January 11, 2023.

F6 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.

F4 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-036353 · tm247887-8_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 113,297

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, 2023, the Reporting Person was granted 62,500 RSUs with 25% of the RSUs vesting on the one-year anniversary of the date of grant and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 15,625 have vested through March 15, 2024.

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

F4 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-036353 · tm247887-8_4seq1.xml · derivative · entry 5

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 46,875

Underlying: Common Stock · 15,625 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-24-036353 · tm247887-8_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 113,037

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.

F3 · shares: On March 18, 2020, the Reporting Person was granted 4,167 RSUs and such RSUs have fully vested as of March 18, 2024.

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

F4 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (iii) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-030613 · tm247887-1_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,500

Underlying: Common Stock · 1,562 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-24-030613 · tm247887-1_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,412

F4 · shares: These shares were sold to cover taxes associated with the settlement of RSUs.

F5 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 13, 2022.

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4, (iii) 261 unvested RSUs of the 4,167 RSUs granted to the Reporting Person on March 18, 2021 and (iv) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-030613 · tm247887-1_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,867

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 16, 2022, the Reporting Person was granted 25,000 RSUs with 25% of the RSUs vesting on February 28, 2023 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 12,500 have vested through February 29, 2024.

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

F3 · balance_after: Includes (i) 39,588 RSUs granted to the Reporting Person on January 11, 2024, none of which have vested as of the date of this Form 4, (ii) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4, (iii) 261 unvested RSUs of the 4,167 RSUs granted to the Reporting Person on March 18, 2021 and (iv) 8,059 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-24-004150 · tm243427-2_4seq1.xml · derivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,588

Underlying: Common Stock · 39,588 shares

Expires not disclosed

F4 · derivative.exercise_price: Each performance stock unit ("PSU") converts into one share of the Issuer's common stock.

F5 · derivative.exercise_date: On January 11, 2024, the Reporting Person was granted 39,588 PSUs. The PSUs shall 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.

F5 · derivative.expiration_date: On January 11, 2024, the Reporting Person was granted 39,588 PSUs. The PSUs shall 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.

SEC source: 0001104659-24-004150 · tm243427-2_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,520

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 January 11, 2025 and the remaining RSUs shall vest ratably on a quarterly basis over three years thereafter.

F3 · balance_after: Includes (i) 261 unvested RSUs of the 4,167 RSUs granted to the Reporting Person on March 18, 2021 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-23-127785 · tm2332275-9_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 260

Underlying: Common Stock · 261 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-23-127785 · tm2332275-9_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 54,932

F4 · shares: These shares were sold to cover taxes associated with the settlement of RSUs.

F5 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 14, 2020.

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan. The amount of securities beneficially owned by the Reporting Person following the transactions reported herein has been corrected due to an administrative error in the Reporting Person's previous Form 4.

SEC source: 0001104659-23-127785 · tm2332275-9_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,009

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 March 18, 2020, the Reporting Person was granted 4,167 RSUs with 25% vesting on March 18, 2021, with the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 3,906 have vested through December 18, 2023.

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

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan. The amount of securities beneficially owned by the Reporting Person following the transactions reported herein has been corrected due to an administrative error in the Reporting Person's previous Form 4.

SEC source: 0001104659-23-123732 · tm2332275-1_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,062

Underlying: Common Stock · 1,563 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-23-123732 · tm2332275-1_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 54,478

F4 · shares: These shares were sold to cover taxes associated with the settlement of RSUs.

F5 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 13, 2022.

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-23-123732 · tm2332275-1_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,200

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 16, 2022, the Reporting Person was granted 25,000 RSUs with 25% vesting on February 28, 2023, with the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 10,938 have vested through November 30, 2023.

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

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-23-102445 · tm2325564-6_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,646

Underlying: Common Stock · 260 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-23-102445 · tm2325564-6_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,637

F4 · shares: These shares were sold to cover taxes associated with the settlement of RSUs.

F5 · shares: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 14, 2020.

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-23-102445 · tm2325564-6_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,712

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 March 18, 2020, the Reporting Person was granted 4,167 RSUs with 25% vesting on March 18, 2021 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 3,646 have vested through September 19, 2023.

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

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 6,274 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.

SEC source: 0001104659-23-098423 · tm2325564-1_4seq1.xml · derivative · entry 3

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,452

Underlying: Common Stock · 1,562 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

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

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

SEC source: 0001104659-23-098423 · tm2325564-1_4seq1.xml · nonDerivative · entry 2

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,452

F5 · kind: Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 13, 2022.

F4 · shares: These shares were sold to cover taxes associated with the settlement of RSUs.

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 1,819 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan on August 31, 2023. Prior to this filing, the Reporting Person had a total of 50,516 securities beneficially owned, not the previously erroneously disclosed number of 58,704 filed per the Reporting Person's Form 4 on July 7, 2023.

SEC source: 0001104659-23-098423 · tm2325564-1_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 53,897

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 16, 2022, the Reporting Person was granted 25,000 RSUs with 25% vesting on February 28, 2023, with the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 9,375 have vested through August 31, 2023.

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

F3 · balance_after: Includes (i) 25,000 RSUs granted to the Reporting Person on July 6, 2023, none of which have vested as of the date of this Form 4 and (ii) 1,819 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan on August 31, 2023. Prior to this filing, the Reporting Person had a total of 50,516 securities beneficially owned, not the previously erroneously disclosed number of 58,704 filed per the Reporting Person's Form 4 on July 7, 2023.

SEC source: 0001104659-23-079224 · tm2320868-1_4seq1.xml · nonDerivative · entry 1

Adair Jason · CIK 0001747055 · Chief Business Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,704

F1 · shares: On July 6, 2023, the Reporting Person was granted 25,000 restricted stock units ("RSUs"). 25% of the RSUs will vest on July 25, 2024, and the remaining RSUs will vest ratably on a quarterly basis over three years thereafter. Each RSU represents a contingent right to receive one share of the Issuer's common stock.

F2 · balance_after: Includes (i) 29,249 shares of the Issuer's commons stock which were acquired from previously vested RSUs and performance stock units ("PSUs") and (ii) 4,455 shares of the Issuer's common stock from purchases under the Issuer's employee stock purchase plan ("ESPP").

SEC source: 0001104659-21-095504 · tm2123135-1_4seq1.xml · derivative · entry 1

Adair Jason · CIK 0001747055 · V.P. Crp Dvlpmnt and Strtgy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2031-07-21

F1 · derivative.exercise_date: The option vests over a four-year period with 25% of the shares of common stock underlying the option vesting on the one-year anniversary of the grant date and the remaining 75% of the shares of common stock underlying the option vesting in equal monthly installments thereafter, becoming fully vested on July 21, 2025; provided, however, that notwithstanding the foregoing vesting schedule, 50% of the shares of common sock underlying the option will vest upon U.S. Food and Drug Administration (FDA) tentative approval of the Issuer's New Drug Application for LIQ861.