Natalie C. Holles - 11 Aug 2025 Form 4 Insider Report for Third Harmonic Bio, Inc. (THRD)

Reporting relationship: CEO, Director
Issuer ticker: THRD
Reported as of: 11 Aug 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 14 Aug 2025, 16:09:05 UTC
Prior SEC filing: 04 Jun 2025
Next SEC filing: 07 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Natalie Holles

Key filing fact

Natalie C. Holles filed Form 4 for Third Harmonic Bio, Inc. (THRD) on 14 Aug 2025.

Key facts

This page summarizes Natalie C. Holles's Form 4 filing for Third Harmonic Bio, Inc. (THRD).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 14 Aug 2025, 16:09.

Change

Previous filing in this sequence was filed on 04 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

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001580111 Primary reporting owner

Holles Natalie C.

Relationship: CEO, Director
Address: C/O THIRD HARMONIC BIO, INC., 1700 MONTGOMERY STREET, SUITE 210, SAN FRANCISCO
Signature: /s/ Natalie Holles
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: -1,218,836
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: -998,854
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 11 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 998,854
Exercise price
Footnotes: F1, F3

THRD transaction Derivative

Restricted Stock Unit

Other

Transaction value: $0
Shares: -50,000
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 11 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 50,000
Exercise price
Footnotes: F1, 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

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.

Footnote F4

The restricted stock units were deemed vested aod settled on the date of the liquidation distribution, and such settled shares received a liquidation distribution of $5.35 per share.