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Form 4 Liquidia Corp For: May 21 Filed by: SINGH RAMAN

May 26, 2026 6:18 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 *
SINGH RAMAN

(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)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026
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 05/21/2026 M 19,444 A $ 8.63 58,199 (1) D
Common Stock 05/21/2026 M 10,050 A $ 11 68,249 (1) D
Common Stock 05/21/2026 S (2) 29,494 D $ 60.1287 (3) 38,755 (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
Non-Qualified Stock Option (right to buy) $ 8.63 05/21/2026 M 19,444 05/19/2026 (4) 06/19/2033 Common Stock 19,444 $ 0 556 D
Non-Qualified Stock Option (right to buy) $ 11 05/21/2026 M 10,050 07/30/2021 (5) 07/30/2028 Common Stock 10,000 $ 0 0 D
Explanation of Responses:
1. Includes 18,396 restricted stock units granted to the Reporting Person on June 17, 2025, none of which have vested as of the date of this Form 4.
2. Represents the subsequent sale of the underlying shares from the exercise of stock options reported on this Form 4.
3. Price is the volume weighted average price of all transactions made by the Reporting Person on the transaction date for prices ranging from $59.95 to $60.38. 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. Represents the date exercisable applicable to the exercise of stock options reported on this Form 4. The option vests in 36 equal monthly installments and will become fully vested on June 19, 2026.
5. The option vested in 36 equal monthly installments and became fully vested on July 30, 2021.
/s/ Raman Singh 05/26/2026
** 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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