Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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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1. Name and Address of Reporting Person * JEFFS ROGER 2. Issuer Name and Ticker or Trading Symbol Liquidia Corp [LQDA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 419 DAVIS DRIVE, SUITE 100 3. Date of Earliest Transaction (Month/Day/Year) 04/10/2026 (Street) MORRISVILLE, NC 27560 4. If Amendment, Date 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 (City) (State) (Zip) 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 13,834(2) A (1) 1,156,010(3) D Common Stock 04/10/2026 M 14,333(4) A (1) 1,170,343(3) D Common Stock 04/13/2026 S(5) 32,744(6) D $38.37 1,137,599(3) D Common Stock 46,595 I See footnote(7) Common Stock 04/10/2026 S(8) 21,433 D $40.1193(9) 1,495,234 I See footnote(10)

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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 Underlying Securities (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 of Derivative Security: 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

Performance Stock Units

(1)

04/10/2026

M

13,834

(1)

(1)

Common Stock

13,834

$ 0

96,835

D

Performance Stock Units

(1)

04/10/2026

M

14,333

(1)

(1)

Common Stock

14,333

$ 0

157,662

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JEFFS ROGER 419 DAVIS DRIVE, SUITE 100 MORRISVILLE, NC 27560	X		Chief Executive Officer

Signatures

/s/ Roger Jeffs		04/14/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Performance stock units ("PSUs") convert into common stock on a one-for-one basis.
(2)	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 124,503 have vested as of the date of this Form 4.
(3)	Includes (i) 54,281 unvested restricted stock units ("RSUs") of the 289,500 RSUs granted to the Reporting Person on January 11, 2023, (ii) 96,835 unvested RSUs of the 221,338 RSUs granted to the Reporting Person on January 11, 2024, (iii) 157,662 unvested RSUs of the 229,327 RSUs granted to the Reporting Person on January 11, 2025 and (iv) 115,344 RSUs granted to the Reporting Person on January 16, 2026, none of which have vested as of the date of this Form 4.
(4)	On January 11, 2025, the Reporting Person was granted 229,327 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2026 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 71,665 have vested as of the date of this Form 4.
(5)	Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.
(6)	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, January 11, 2024 and January 11, 2025.
(7)	The securities are held by Roger A. Jeffs Living Trust UAD 2/29/2000 (the "Trust"). The Reporting Person is the trustee of the Trust.
(8)	Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on November 5, 2025.
(9)	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 $40.55. 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.
(10)	The securities are held by Serendipity BioPharma LLC ("Serendipity"). The Reporting Person is a manager of Serendipity and has sole voting and dispositive power over the Issuer common stock held by Serendipity.

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