David Edward Johnson - 16 Jun 2026 Form 4 Insider Report for Liquidia Corp (LQDA)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: LQDA
Reported as of: 16 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Jun 2026, 17:30:28 UTC
Prior SEC filing: 29 May 2026
Source filing: View source filing
Reporting owner signature: Caligan Partners LP, By: /s/ David Johnson, Managing Partner

Key filing fact

David Edward Johnson filed Form 4 for Liquidia Corp (LQDA) on 18 Jun 2026.

Key facts

This page summarizes David Edward Johnson's Form 4 filing for Liquidia Corp (LQDA).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 18 Jun 2026, 17:30.

Change

Previous filing in this sequence was filed on 29 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (2)

CIK 0001785557 Primary reporting owner

JOHNSON DAVID EDWARD

Relationship: Director, 10%+ Owner
Address: 780 THIRD AVENUE, 30TH FLOOR, NEW YORK
Signature: Caligan Partners LP, By: /s/ David Johnson, Managing Partner
Signature date: 18 Jun 2026

CIK 0001727492

Caligan Partners LP

Relationship: Director, Other*, 10%+ Owner
Address: 780 THIRD AVENUE, 30TH FLOOR, NEW YORK
Signature: /s/ David Edward Johnson
Signature date: 18 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LQDA transaction

Common Stock, $0.001 par value per share ("Common Stock")

Award

Transaction value
Shares: +5,882
Change %
Price: $0.000000^*
Shares after: 5,882
Date: 16 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F3

LQDA transaction

Common Stock, $0.001 par value per share ("Common Stock")

Award

Transaction value
Shares: +5,882
Change %
Price: $0.000000^*
Shares after: 5,882
Date: 16 Jun 2026
Ownership: Direct
Footnotes: F1, F2, F3

LQDA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 8,157,347
Date: 16 Jun 2026
Ownership: See footnote
Footnotes: F4

LQDA holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 8,157,347
Date: 16 Jun 2026
Ownership: See footnote
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Restricted stock units ("RSUs") convert into Common Stock on a one-for-one basis.

Footnote F2

The RSUs shall vest upon the earlier of (i) the one-year anniversary of the date of grant or (ii) the day prior to the Issuer's next annual shareholder meeting following the date of grant.

Footnote F3

David Johnson ("Mr. Johnson") is deemed to hold the securities reported herein for the benefit of certain funds (the "Caligan Funds") and managed accounts (the "Caligan Accounts", and together with the Caligan Funds, the "Caligan Funds and Accounts") to which Caligan Partners LP ("Caligan") serves as investment manager, and may, after vesting, if applicable, transfer the securities directly to such Caligan Funds and Accounts.

Footnote F4

Securities held by the Caligan Funds and Accounts to which Caligan serves as investment manager and related entities. Mr. Johnson (together with Caligan, the "Reporting Persons") is the Managing Partner of Caligan and a Managing Member of Caligan Partners GP LLC, the general partner of Caligan.

SEC remarks

Each Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Caligan may be deemed to be a director by deputization of the Issuer by virtue of the fact that Mr. Johnson currently serves on the Issuer's board of directors.