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Form 4 Liquidia Corp For: Apr 10 Filed by: Kaseta Michael

April 14, 2026 5:07 PM
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
Kaseta Michael

(Last) (First) (Middle)
419 DAVIS DRIVE, SUITE 100

(Street)
MORRISVILLE NC 27560

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Liquidia Corp [ LQDA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
CFO and COO
3. Date of Earliest Transaction (Month/Day/Year)
04/10/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 04/10/2026 M 23,821 A $ 2.79 435,676 (1) D
Common Stock 04/10/2026 S (2) 23,821 D $ 40.1431 (3) 411,855 (1) D
Common Stock 04/10/2026 M 5,828 (5) A (4) 417,683 (1) D
Common Stock 04/10/2026 M 7,050 (6) A (4) 424,733 (1) D
Common Stock 04/13/2026 S (7) 18,958 (8) D $ 38.37 405,775 (1) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Incentive Stock Option (right to buy) $ 2.79 04/10/2026 M 23,821 11/30/2024 (9) 11/30/2030 Common Stock 23,821 $ 0 100,505 D
Performance Stock Units (4) 04/10/2026 M 5,828 (4) (4) Common Stock 5,828 $ 0 40,797 D
Performance Stock Units (4) 04/10/2026 M 7,050 (4) (4) Common Stock 7,050 $ 0 77,547 D
Explanation of Responses:
1. Includes (i) 23,375 unvested restricted stock units ("RSUs") of the 124,667 RSUs granted to the Reporting Person on January 11, 2023, (ii) 40,797 unvested RSUs and 21,875 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) 77,547 unvested RSUs of the 112,797 RSUs granted to the Reporting Person on January 11, 2025, (iv) 59,320 RSUs granted to the Reporting Person on January 16, 2026, none of which have vested as of the date of this Form 4 and (v) 11,694 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.
2. Represents the subsequent sale of the underlying shares from the exercise of stock options reported on this Form 4. Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 5, 2025.
3. Price is the volume weighted average price of all transactions made by the Reporting Person on the transaction date for prices ranging from $40.00 to $40.62. 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.
4. Performance stock units ("PSUs") convert into common stock on a one-for-one basis
5. On January 11, 2024, the Reporting Person was granted 93,250 PSUs with 25% of the RSUs vesting on January 11, 2025 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 52,453 have vested as of the date of this Form 4.
6. On January 11, 2025, the Reporting Person was granted 112,797 PSUs with 25% of the RSUs vesting on January 11, 2026 and the remaining RSUs vesting ratably on a quarterly basis over three years thereafter. Of those RSUs, a total of 35,250 have vested as of the date of this Form 4.
7. Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.
8. 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, January 11, 2024, January 15, 2024 and January 11, 2025.
9. The option vested over a four-year period with 25% vesting on November 30, 2021 and the remaining 75% vesting ratably on a monthly basis over three years thereafter and became fully vested on November 30, 2024.
/s/ Michael Kaseta 04/14/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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