Verastem Inc. (VSTM) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem 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
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Time period
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-05-15
4:21 pm
Purchase
2026-03-3113GVERASTEM INC
VSTM
Foresite Capital Fund VI LP3,146,631
3.600%
11,511increase
(+0.37%)
Filing
History
2026-05-15
11:08 am
Purchase
2026-03-3113GVERASTEM INC
VSTM
Armistice Capital, LLC4,592,000
5.230%
1,056,000increase
(+29.86%)
Filing
History
2026-05-15
08:42 am
Purchase
2026-03-3113GVERASTEM INC
VSTM
RTW Investments, LP9,018,724
9.900%
1,182,378increase
(+15.09%)
Filing
History
2026-05-15
06:13 am
Sale
2026-03-3113GVERASTEM INC
VSTM
Balyasny Asset Management L.P.1,360,391
1.550%
-3,406,763decrease
(-71.46%)
Filing
History
2026-03-27
1:52 pm
Sale
2026-03-1313GVERASTEM INC
VSTM
VANGUARD GROUP INC0
0.000%
-3,423,617decrease
(Position Closed)
Filing
History
2026-02-17
9:43 pm
Purchase
2025-12-3113GVERASTEM INC
VSTM
Armistice Capital, LLC3,536,000
5.300%
3,536,000increase
(New Position)
Filing
History
2026-02-17
4:33 pm
Sale
2025-12-3113GVERASTEM INC
VSTM
Point72 Asset Management, L.P.995,026
1.300%
-2,343,393decrease
(-70.19%)
Filing
History
2026-02-17
08:54 am
Purchase
2025-12-3113GVERASTEM INC
VSTM
RTW Investments, LP7,836,346
9.900%
2,209,543increase
(+39.27%)
Filing
History
2026-02-17
06:49 am
Sale
2025-12-3113GVERASTEM INC
VSTM
Balyasny Asset Management L.P.4,767,154
6.180%
-951,036decrease
(-16.63%)
Filing
History
2026-02-13
5:09 pm
Sale
2025-12-3113GVERASTEM INC
VSTM
Nantahala Capital Management, LLC3,795,473
4.720%
-830,763decrease
(-17.96%)
Filing
History
2026-01-05
09:44 am
Purchase
2025-12-3113GVERASTEM INC
VSTM
Polar Capital Holdings Plc3,398,899
5.090%
3,398,899increase
(New Position)
Filing
History
2025-11-21
4:00 pm
Purchase
2025-11-1413GVERASTEM INC
VSTM
Deep Track Capital, LP7,719,390
9.990%
7,719,390increase
(New Position)
Filing
History
2025-11-14
4:39 pm
Sale
2025-09-3013GVERASTEM INC
VSTM
Nantahala Capital Management, LLC4,626,236
7.130%
-833,042decrease
(-15.26%)
Filing
History
2025-11-14
1:01 pm
Sale
2025-09-3013GVERASTEM INC
VSTM
Logos Global Management LP3,175,000
4.800%
-250,000decrease
(-7.30%)
Filing
History
2025-11-14
06:05 am
Sale
2025-09-3013GVERASTEM INC
VSTM
Balyasny Asset Management L.P.5,718,190
9.290%
-59,206decrease
(-1.02%)
Filing
History
2025-11-13
4:19 pm
Sale
2025-09-3013GVERASTEM INC
VSTM
Stonepine Capital Management, LLC2,670,032
4.300%
-163,301decrease
(-5.76%)
Filing
History
2025-10-23
7:09 pm
Purchase
2025-10-1613GVERASTEM INC
VSTM
Foresite Capital Fund VI LP3,135,120
5.100%
3,135,120increase
(New Position)
Filing
History
2025-10-17
6:24 pm
Purchase
2025-09-3013GVERASTEM INC
VSTM
BlackRock, Inc.
BLK
3,676,905
6.000%
1,158,263increase
(+45.99%)
Filing
History
2025-08-14
5:56 pm
Sale
2025-06-3013GVERASTEM INC
VSTM
ORBIMED ADVISORS LLC1,333,333
2.400%
-1,529,115decrease
(-53.42%)
Filing
History
2025-08-14
08:13 am
Purchase
2025-06-3013GVERASTEM INC
VSTM
RTW Investments, LP5,626,803
9.900%
1,381,327increase
(+32.54%)
Filing
History
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