STOCK TITAN

Liquidia Russell Schundler sells 13,692 shares

The reported sale covered taxes on settled restricted and performance stock units and was made under a plan adopted on December 15, 2023.

(Moderate)

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Form Type
4

Rhea-AI Filing Summary

Liquidia Corp General Counsel Russell Schundler reported selling 13,692 common shares at $28.48 per share on October 12, 2026, to cover taxes associated with the settlement of restricted stock units and performance stock units. The sale was made pursuant to a Rule 10b5-1 plan adopted on December 15, 2023.

On October 9, 2026, 3,758 and 6,409 performance stock units converted into matching amounts of common stock on a one-for-one basis. A separate holding entry lists 14,500 common shares held by his spouse; Schundler disclaims beneficial ownership except to the extent of his pecuniary interest.

Insider Schundler Russell
Role General Counsel
Sold 13,692 shs ($390K)
Approx. gross sale proceeds $390K
Type Security Shares Price Value
Sale Common Stock F5, F6, F3 13,692 $28.48 $390K
Exercise Performance Stock Units F1 3,758 $0.00 $0.00
Exercise Performance Stock Units F1 6,409 $0.00 $0.00
Exercise Common Stock F2, F1, F3 3,758 -- --
Exercise Common Stock F4, F1, F3 6,409 -- --
holding Common Stock F7 -- -- --
Holdings After Transaction: Performance Stock Units — 76,472 contracts (Direct); Common Stock — 602,841 shares (Direct); Common Stock — 14,500 shares (Indirect, By Spouse)
Footnotes (7)
  1. F1. Performance stock units ("PSUs") convert into common stock on a one-for-one basis.
  2. F2. 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 41,343 have vested as of the date of this Form 4.
  3. F3. Includes (i) 6,510 unvested restricted stock units ("RSUs") of the 104,167 RSUs granted to the Reporting Person on January 11, 2023, (ii) 34,417 unvested RSUs of the 110,135 RSUs granted to the Reporting Person on January 11, 2024, (iii) 57,680 unvested RSUS of the 102,543 RSUs granted to the Reporting Person on January 11, 2025, (iv) 32,955 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) 12,710 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.
  4. F4. On January 11, 2025, the Reporting Person was granted 102,543 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2026 and the remaining PSUs shall vest ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 44,863 have vested as of the date of this Form 4.
  5. F5. Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.
  6. F6. 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 and January 11, 2025.
  7. F7. The reporting person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.
Common shares sold 13,692 shares October 12, 2026; sale to cover taxes associated with settlement of restricted stock units and performance stock units
Sale price $28.48 per share Common shares sold on October 12, 2026
Performance stock units converted 3,758 units Converted into common stock on October 9, 2026
Performance stock units converted 6,409 units Converted into common stock on October 9, 2026
Conversion basis 1 common share per performance stock unit Performance stock units convert into common stock on a one-for-one basis
Common shares held by spouse 14,500 shares Indirect holding entry reported October 9, 2026
Rule 10b5-1 plan regulatory
"Transaction effected pursuant to a Rule 10b5-1 plan"
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
Performance stock units financial
"Performance stock units ("PSUs") convert into common stock"
Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.
restricted stock units financial
"unvested restricted stock units ("RSUs")"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many LQDA shares did Russell Schundler sell, and at what price?

Russell Schundler reported selling 13,692 common shares at $28.48 per share on October 12, 2026. The shares were sold to cover taxes associated with the settlement of restricted stock units and performance stock units, pursuant to a Rule 10b5-1 plan adopted on December 15, 2023.

How many performance stock units converted into LQDA common stock?

On October 9, 2026, 3,758 and 6,409 performance stock units converted into matching amounts of common stock. The units convert into common stock on a one-for-one basis.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED 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
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Schundler Russell

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

(Street)
MORRISVILLE NORTH CAROLINA 27560

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Liquidia Corp [ LQDA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
General Counsel
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
10/09/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock10/09/2026M3,758(2)A(1)610,124(3)D
Common Stock10/09/2026M6,409(4)A(1)616,533(3)D
Common Stock10/12/2026S(5)13,692(6)D$28.48602,841(3)D
Common Stock14,500(7)IBy Spouse
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance Stock Units(1)10/09/2026M3,758 (1) (1)Common Stock3,758$018,792D
Performance Stock Units(1)10/09/2026M6,409 (1) (1)Common Stock6,409$057,680D
Explanation of Responses:
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 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 41,343 have vested as of the date of this Form 4.
3. Includes (i) 6,510 unvested restricted stock units ("RSUs") of the 104,167 RSUs granted to the Reporting Person on January 11, 2023, (ii) 34,417 unvested RSUs of the 110,135 RSUs granted to the Reporting Person on January 11, 2024, (iii) 57,680 unvested RSUS of the 102,543 RSUs granted to the Reporting Person on January 11, 2025, (iv) 32,955 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) 12,710 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan.
4. On January 11, 2025, the Reporting Person was granted 102,543 PSUs which vest upon the following time-based vesting schedule: 25% of the PSUs shall vest on January 11, 2026 and the remaining PSUs shall vest ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 44,863 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 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 and January 11, 2025.
7. The reporting person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.
/s/ Russell Schundler10/13/2026
** Signature of Reporting PersonDate
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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