Key facts
- This page summarizes Iwicki Mark T.'s Form 4 filing for Third Harmonic Bio, Inc. (THRD).
- 2 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 14 Aug 2025, 16:06.
Iwicki Mark T. - 11 Aug 2025 Form 4 Insider Report for Third Harmonic Bio, Inc. (THRD)
- Reporting relationship
- Director
- Issuer ticker
- THRD
- Reported as of
- 11 Aug 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 14 Aug 2025, 16:06:58 UTC
- Prior SEC filing
- 26 Jun 2025
- Next SEC filing
- 27 Oct 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Natalie Holles, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Iwicki Mark T. filed Form 4 for Third Harmonic Bio, Inc. (THRD) on 14 Aug 2025.
Change
- Previous filing in this sequence was filed on 26 Jun 2025.
- 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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001415537
Primary reporting owner
Iwicki Mark T
- Relationship
- Director
- Address
- C/O THIRD HARMONIC BIO, INC., 1700 MONTGOMERY STREET, SUITE 210, SAN FRANCISCO
- Signature
- /s/ Natalie Holles, Attorney-in-Fact
- Signature date
- 14 Aug 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
THRD
transaction
Common Stock
Other
- Transaction value
- Shares
- -128,631
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 11 Aug 2025
- Ownership
- Direct
- Footnotes
- F1, F2
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
THRD
transaction
Derivative
Stock Option
Other
- Transaction value
- $0
- Shares
- -83,296
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 11 Aug 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 83,296
- Exercise price
- Footnotes
- F1, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
Transaction reported is a cancellation of shares of common stock in connection with the dissolution of the Issuer.
Footnote F2
The reporting person received a liquidation distribution of $5.35 per share of Common Stock from Issuer.
Footnote F3
Represents payment of the liquidation distribution of $5.35 per share less the exercise price of such options.