Third Harmonic Bio, Inc. (THRD)
Data as of , from SEC Form 4 filings.
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About Third Harmonic Bio, Inc. (THRD)
Third Harmonic Bio, Inc. files with the SEC under CIK 0001923840 and is classified as pharmaceutical preparations. We track it alongside the rest of the Health Care sector.
THRD Form 4 activity by transaction type, last 90 days
No Form 4 activity for THRD in the last 90 days.
THRD insider transactions (Form 4)
2211 Form 4 filings on record, the earliest from Oct 30, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Christopher M. Murphy - Officer | Other | Restricted Stock Unit | 47,500 | $0.00 | - | |
| Hans Martin Seidel | Other | Common Stock | 85,753 | - | - | |
| Hans Martin Seidel | Other | Stock Option | 53,090 | $0.00 | - | |
| Michael Gladstone | Other | Stock Option | 43,584 | $0.00 | - | |
| Natalie C. Holles - Officer | Other | Common Stock | 1,218,836 | - | - | |
| Natalie C. Holles - Officer | Other | Stock Option | 998,854 | $0.00 | - | |
| Natalie C. Holles - Officer | Other | Restricted Stock Unit | 50,000 | $0.00 | - | |
| David P. Bonita | Other | Common Stock | 5,779,071 | - | - | |
| David P. Bonita | Other | Stock Option | 43,584 | $0.00 | - | |
| Thomas P. Soloway | Other | Stock Option | 120,166 | $0.00 | - | |
| Mark T. Iwicki | Other | Common Stock | 128,631 | - | - | |
| Mark T. Iwicki | Other | Stock Option | 83,296 | $0.00 | - | |
| Edward R. Conner - Officer | Option exercise | Common Stock | 2,117 | $4.20 | $9K | |
| Edward R. Conner - Officer | Open-market sale | Common Stock | 2,117 | $15.00 | $32K | |
| Edward R. Conner - Officer | Option exercise | Employee Option Grant (right to buy) | 2,117 | $0.00 | - | |
| Atlas Venture Fund XI, L.P. | Other | Common Stock | 515,688 | $0.00 | - | |
| BVF PARTNERS L P | Open-market sale | Common Stock | 538,420 | $14.30 | $7.70M | |
| BVF PARTNERS L P | Open-market sale | Common Stock | 396,963 | $14.30 | $5.68M | |
| BVF PARTNERS L P | Open-market sale | Common Stock | 64,617 | $14.30 | $924K | |
| Edward R. Conner - Officer | Option exercise | Common Stock | 2,673 | $4.20 | $11K | |
| Edward R. Conner - Officer | Open-market sale | Common Stock | 2,673 | $15.00 | $40K | |
| Edward R. Conner - Officer | Option exercise | Employee Option Grant (right to buy) | 2,673 | $0.00 | - |
THRD insider trading FAQ
What is the latest insider trade for THRD?
Third Harmonic Bio, Inc. (THRD) has filed no insider reports in the last 90 days. The most recent on record is dated 2025-08-11. The full record for THRD runs to 11 Form 4 filings, the earliest from 2024-10-30. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying THRD stock?
No insider purchases of THRD were filed in the last 90 days.
How many insiders are selling THRD stock?
No insider sales of THRD were filed in the last 90 days. 5 sales are on record for this company.
Where can I see THRD SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects THRD Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Christopher M. Murphy view on EDGAR
- - Hans Martin Seidel view on EDGAR
- - Michael Gladstone view on EDGAR
- - Natalie C. Holles view on EDGAR
- - David P. Bonita view on EDGAR
- - Thomas P. Soloway view on EDGAR
- - Mark T. Iwicki view on EDGAR
- - Edward R. Conner view on EDGAR
- - Atlas Venture Fund XI, L.P. view on EDGAR
- - BVF PARTNERS L P
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Health Care
- Where THRD's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
Follow THRD with a 7-day demo
- THRD on your watchlist
- Every THRD Form 4 filing on record
- Up to 3 months of THRD price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive
