There have been 50 recent insider transactions recorded for Third Harmonic Bio, Inc. (THRD), including 27 buys and 19 sells. Total insider buying was valued at $28.37M and total insider selling at $2.72M.
Notable insiders with recent activity include Murphy Christopher M., Holles Natalie C., Conner Edward R.. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — THRD
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2025-03-01 |
Murphy Christopher M. |
Chief Financial & Bus. Officer |
RSU Award |
30,000 |
- |
- |
30,000 |
| 2025-01-15 |
Holles Natalie C. |
CEO |
RSU Award |
50,000 |
- |
- |
50,000 |
| 2025-01-15 |
Conner Edward R. |
Chief Medical Officer |
RSU Award |
16,500 |
- |
- |
16,500 |
| 2025-01-15 |
Dinsmore Christopher |
Chief Scientific Officer |
RSU Award |
14,500 |
- |
- |
14,500 |
| 2025-01-15 |
Person Julie |
Chief Administrative Officer |
RSU Award |
12,500 |
- |
- |
12,500 |
| 2025-01-15 |
Murphy Christopher M. |
Chief Financial & Bus. Officer |
RSU Award |
17,500 |
- |
- |
17,500 |
| 2025-01-15 |
Dittman Jennifer |
Chief Operating Officer |
RSU Award |
11,500 |
- |
- |
11,500 |
| 2025-01-15 |
Dean Dennis |
Chief Nonclinical Dev. Officer |
RSU Award |
11,500 |
- |
- |
11,500 |
| 2024-11-08 |
Conner Edward R. |
Chief Medical Officer |
Informative Sell |
2,117 |
$15.00 |
$31.76K |
- |
| 2024-11-01 |
Atlas Venture Fund Xi, L.p. |
10 Percent Owner |
Other (Sell) |
515,688 |
- |
- |
9,798,075 |
| 2024-10-29 |
Bvf Partners L P/il |
Other: See Explanation of Responses |
Informative Sell |
64,617 |
$14.30 |
$924.02K |
176,692 |
| 2024-10-28 |
Conner Edward R. |
Chief Medical Officer |
Informative Sell |
2,673 |
$15.00 |
$40.1K |
- |
| 2024-09-19 |
Conner Edward R. |
Chief Medical Officer |
Informative Sell |
4,790 |
$15.00 |
$71.85K |
- |
| 2024-09-19 |
Person Julie |
Chief Administrative Officer |
Informative Sell |
9,497 |
$14.29 |
$135.68K |
- |
| 2024-09-18 |
Person Julie |
Chief Administrative Officer |
Informative Sell |
503 |
$14.00 |
$7.04K |
- |
| 2024-06-26 |
Person Julie |
Chief Administrative Officer |
Informative Sell |
10,000 |
$12.46 |
$124.57K |
- |
| 2024-06-07 |
Dittman Jennifer |
Chief Development Oper Officer |
Informative Sell |
494 |
$14.17 |
$7K |
- |
| 2024-06-06 |
Iwicki Mark T |
Director |
RSU Award |
20,000 |
$13.85 |
$277K |
20,000 |
| 2024-06-06 |
Soloway Thomas P |
Director |
RSU Award |
20,000 |
$13.85 |
$277K |
20,000 |
| 2024-06-06 |
Bonita David P |
Director |
RSU Award |
20,000 |
$13.85 |
$277K |
20,000 |
| 2024-06-06 |
Gladstone Michael |
10 Percent Owner |
RSU Award |
20,000 |
$13.85 |
$277K |
20,000 |
| 2024-06-06 |
Seidel Hans Martin |
Director |
RSU Award |
20,000 |
$13.85 |
$277K |
20,000 |
| 2024-05-20 |
Dittman Jennifer |
Chief Development Oper Officer |
Informative Sell |
1,042 |
$14.00 |
$14.59K |
- |
| 2024-05-16 |
Dinsmore Christopher |
Officer |
Unknown |
- |
- |
- |
- |
| 2024-05-16 |
Dinsmore Christopher |
Chief Scientific Officer |
RSU Award |
210,000 |
$14.23 |
$2.99M |
210,000 |
| 2024-05-16 |
Dittman Jennifer |
Chief Development Oper Officer |
Disposition |
50,000 |
$4.30 |
$215K |
- |
| 2024-05-16 |
Dittman Jennifer |
Chief Development Oper Officer |
Informative Sell |
23,578 |
$14.04 |
$331.07K |
- |
| 2024-05-16 |
Dean Dennis |
Officer |
Unknown |
- |
- |
- |
- |
| 2024-05-16 |
Dean Dennis |
Chief Nonclinical Dev. Officer |
RSU Award |
210,000 |
$14.23 |
$2.99M |
210,000 |
| 2024-05-16 |
Dinsmore Christopher |
Chief Scientific Officer |
RSU Award |
297,000 |
$14.23 |
$4.23M |
297,000 |
| 2024-05-09 |
Holles Natalie C. |
CEO |
Option Exercise (Sell) |
20,222 |
$4.20 |
$84.93K |
433,854 |
| 2024-04-11 |
Holles Natalie C. |
CEO |
Option Exercise (Sell) |
13,558 |
$4.20 |
$56.94K |
454,076 |
| 2024-04-04 |
Person Julie |
Chief Administrative Officer |
Informative Sell |
1,107 |
$10.00 |
$11.07K |
- |
| 2024-03-27 |
Mcdonough Geoff |
Officer |
Unknown |
- |
- |
- |
- |
| 2024-03-27 |
Mcdonough Geoff |
Director |
RSU Award |
60,000 |
$9.47 |
$568.2K |
60,000 |
| 2024-01-05 |
Holles Natalie C. |
CEO |
RSU Award |
396,000 |
$10.89 |
$4.31M |
396,000 |
| 2024-01-05 |
Holles Natalie C. |
CEO |
RSU Award |
396,000 |
$10.89 |
$4.31M |
396,000 |
| 2024-01-05 |
Conner Edward R. |
Chief Medical Officer |
RSU Award |
133,000 |
$10.89 |
$1.45M |
133,000 |
| 2024-01-05 |
Person Julie |
Chief Administrative Officer |
RSU Award |
116,000 |
$10.89 |
$1.26M |
116,000 |
| 2024-01-05 |
Murphy Christopher M. |
Chief Financial & Bus. Officer |
RSU Award |
410,000 |
$10.89 |
$4.46M |
410,000 |
| 2024-01-04 |
Murphy Christopher M. |
Officer |
Unknown |
- |
- |
- |
- |
| 2023-12-05 |
Conner Edward R. |
Chief Medical Officer |
Informative Sell |
4,790 |
$10.03 |
$48.06K |
- |
| 2023-12-05 |
Person Julie |
Chief Administrative Officer |
Informative Sell |
12,863 |
$10.30 |
$132.48K |
- |
| 2023-06-06 |
Iwicki Mark T |
Director |
RSU Award |
16,250 |
$5.03 |
$81.74K |
16,250 |
| 2023-06-06 |
Soloway Thomas P |
Director |
RSU Award |
16,250 |
$5.03 |
$81.74K |
16,250 |
| 2023-06-06 |
Bonita David P |
10 Percent Owner |
RSU Award |
16,250 |
$5.03 |
$81.74K |
16,250 |
| 2023-06-06 |
Gladstone Michael |
Director |
RSU Award |
16,250 |
$5.03 |
$81.74K |
16,250 |
| 2023-06-06 |
Seidel Hans Martin |
Director |
RSU Award |
16,250 |
$5.03 |
$81.74K |
16,250 |
| 2023-03-06 |
Perez Robert J |
Director |
Return of Shares |
13,667 |
$17.83 |
$243.68K |
- |
| 2023-03-06 |
Iwicki Mark T |
Director |
Return of Shares |
13,667 |
$17.83 |
$243.68K |
- |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
