List of insiders holdings for Verastem Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | BVF PARTNERS L P BIOTECHNOLOGY VALUE FUND L P BVF I GP LLC BIOTECHNOLOGY VALUE FUND II LP BVF II GP LLC Biotechnology Value Trading Fund OS LP BVF Partners OS Ltd. BVF GP HOLDINGS LLC BVF INC LAMPERT MARK N 10% Owner | 2025-08-13 17:03:56 | 2,500,000 0 | 2,500,000 | Form 13G |
| 2 | CLARKE JOHN K Director | 2013-06-13 16:24:20 | 0 2,329,121 | 2,329,121 | Form 4 |
| 3 | CHP III LP 10% Owner | 2013-06-13 17:00:39 | 2,329,121 0 | 2,329,121 | Form 4 |
| 4 | CHP III LP CHP III Management L.L.C. 10% Owner | 2012-02-10 18:11:21 | 2,234,126 0 | 2,234,126 | Form 13D |
| 5 | Westphal Christoph H Executive Chairman | 2015-07-01 09:15:22 | 665,224 1,500,063 | 2,165,287 | Form 4 |
| 6 | Longwood Fund L.P. 10% Owner | 2014-02-20 17:17:54 | 1,337,173 0 | 1,337,173 | Form 13D |
| 7 | Bessemer Venture Partners VII L.P. Bessemer Venture Partners VII Institutional L.P. BVP VII SPECIAL OPPORTUNITY FUND LP Deer VII & Co. L.P. Deer VII & Co. Ltd. Deer Management Co. LLC Director 10% Owner | 2014-02-25 06:08:53 | 1,194,058 0 | 1,194,058 | Form 13D |
| 8 | MPM BIOVENTURES V LLC MPM BIOVENTURES V GP LLC EVNIN LUKE Foley Todd KAILIAN VAUGHN M Scopa James Paul St Peter Steven Vander Vort John MPM BIOVENTURES V L.P. MPM ASSET MANAGEMENT INVESTORS BV5 LLC Former 10% stockholder | 2013-07-15 16:25:57 | 1,033,333 0 | 1,033,333 | Form 13D |
| 9 | Paterson Dan President and CEO | 2026-06-24 16:45:21 | 591,242 0 | 591,242 | Form 4 |
| 10 | Weinberg Robert A 10% Owner | 2012-01-26 20:01:53 | 363,442 0 | 363,442 | Form 3 |
| 11 | LANDER ERIC S 10% Owner | 2012-01-26 19:55:50 | 358,892 0 | 358,892 | Form 3 |
| 12 | Forrester Robert President and CEO | 2019-02-13 17:02:41 | 213,234 9,000 | 222,234 | Form 5 |
| 13 | Kauffman Michael President of Development | 2026-01-08 16:01:11 | 200,000 0 | 200,000 | Form 4 |
| 14 | Berk Gregory Chief Medical Officer | 2017-01-11 17:01:06 | 150,000 0 | 150,000 | Form 4 |
| 15 | Stuglik Brian M Director | 2026-05-26 18:22:29 | 137,147 0 | 137,147 | Form 4 |
| 16 | Lobacki Joseph M Executive VP & CCO | 2019-01-07 16:48:54 | 125,000 0 | 125,000 | Form 4 |
| 17 | Calkins Daniel Chief Financial Officer | 2026-06-24 16:44:42 | 117,238 0 | 117,238 | Form 4 |
| 18 | BAILEY MICHAEL P Director | 2026-05-27 17:45:40 | 108,000 0 | 108,000 | Form 4 |
| 19 | Horobin Joanna Chief Medical Officer | 2015-01-12 09:32:59 | 100,118 0 | 100,118 | Form 4 |
| 20 | Bloom Steven H. Chief Strategy Officer | 2019-01-07 16:55:45 | 80,000 0 | 80,000 | Form 4 |
| 21 | Le NgocDiep T. MD PhD Chief Medical Officer | 2018-10-02 18:51:59 | 75,000 0 | 75,000 | Form 4 |
| 22 | Solomon Lesley Kim Director | 2022-12-20 16:06:12 | 62,500 0 | 62,500 | Form 4/A |
| 23 | Pachter Jonathan VP, Head of Research | 2014-08-05 08:39:46 | 62,249 0 | 62,249 | Form 4 |
| 24 | Chiapponi Joseph Vice President of Finance | 2017-01-11 17:00:51 | 60,000 0 | 60,000 | Form 4 |
| 25 | JOHNSON JOHN Director | 2026-05-26 18:12:11 | 52,666 0 | 52,666 | Form 4 |
| 26 | Tollefson Karin Anna Director | 2026-05-26 18:23:36 | 52,666 0 | 52,666 | Form 4 |
| 27 | Kapur Anil Director | 2026-05-26 18:18:10 | 52,666 0 | 52,666 | Form 4 |
| 28 | ROBERTSON MICHELLE Director | 2026-05-26 18:19:38 | 52,666 0 | 52,666 | Form 4 |
| 29 | Rowinsky Eric K Director | 2026-05-26 18:21:09 | 52,666 0 | 52,666 | Form 4 |
| 30 | Ros Matthew Chief Operating Officer | 2025-04-03 16:30:36 | 50,000 0 | 50,000 | Form 4 |
| 31 | Bunn Paul A. Director | 2026-05-26 18:12:57 | 44,333 0 | 44,333 | Form 4 |
| 32 | Gagnon Robert E. Director | 2025-12-18 16:45:15 | 41,678 0 | 41,678 | Form 4 |
| 33 | Wendel Bruce Director | 2020-06-18 18:12:54 | 25,000 0 | 25,000 | Form 4 |
| 34 | Lawton Alison Frances Director | 2019-06-25 21:40:07 | 25,000 0 | 25,000 | Form 4 |
| 35 | Phanstiel S. Louise Former Director Director | 2019-02-13 17:07:51 | 25,000 0 | 25,000 | Form 5 |
| 36 | BARBERICH TIMOTHY J Director | 2021-06-30 13:57:38 | 25,000 0 | 25,000 | Form 4 |
| 37 | Consylman Gina Director | 2021-06-30 13:59:23 | 25,000 0 | 25,000 | Form 4 |
| 38 | ALDRICH RICHARD Director | 2014-06-11 09:05:21 | 25,000 0 | 25,000 | Form 4 |
| 39 | FRIEDMAN PAUL A Director | 2016-06-16 16:36:42 | 25,000 0 | 25,000 | Form 4 |
| 40 | GREEN JOHN B Chief Financial Officer | 2016-01-04 18:14:11 | 23,760 0 | 23,760 | Form 4 |
| 41 | SHERWIN STEPHEN A Director | 2015-06-16 18:31:40 | 17,969 0 | 17,969 | Form 4 |
| 42 | TERMEER HENRI A Director | 2015-06-16 18:32:55 | 17,969 0 | 17,969 | Form 4 |
| 43 | Kraus Stephen Director | 2012-03-08 16:13:01 | 12,500 0 | 12,500 | Form 4 |
| 44 | GADICKE ANSBERT Director | 2012-03-08 16:11:49 | 12,500 0 | 12,500 | Form 4 |
| 45 | Deer Management Co. LLC Director 10% Owner | 2012-03-08 17:36:02 | 0 12,500 | 12,500 | Form 4 |
| 46 | Feder Julie B Chief Financial Officer | 2018-06-04 17:55:25 | 5,000 0 | 5,000 | Form 4 |
| 47 | Singh Monica General Counsel | 2015-06-30 08:41:32 | 2,000 0 | 2,000 | Form 4 |
| 48 | Gupta Piyush 10% Owner | 2012-02-03 13:53:14 | 0 0 | 0 | Form 4 |
| 49 | Neumann Frank Chief Medical Officer | 2021-01-08 13:21:28 | 0 0 | 0 | Form 3 |
| 50 | RA CAPITAL MANAGEMENT L.P. RA Capital Healthcare Fund LP Kolchinsky Peter Shah Rajeev M. 10% Owner | 2021-02-16 16:39:44 | 0 0 | 0 | Form 13G |
| 51 | Ridgeback Capital Investments L.P. Ridgeback Capital Investments Ltd. Ridgeback Capital Management LP 10% Owner | 2021-02-16 16:23:13 | 0 0 | 0 | Form 13G |