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Verastem, Inc.

VSTM
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001526119

In the last 90 days, Verastem, Inc. insiders filed 0 open-market purchases and 4 sales; 156 institutions reported holding it in 13F filings for Q2 2026, worth $363.5M in total; no superinvestor holds it.

Holders of 5% or more of VSTM

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Verastem, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of VSTM
HolderLatest formStakeChangeFirst filedLatest filingFiling
Deep Track Capital, LP13G9.99%7.72M sharesNewNov 21, 20251 filingNov 21, 2025SEC
RTW Investments, LP13G/A9.90%9.02M shares0.00 ppfrom 9.90%May 15, 20254 filingsMay 15, 2026SEC
Armistice Capital, LLC13G/A7.76%7.02M shares+2.53 ppfrom 5.23%Feb 17, 20263 filingsAug 14, 2026SEC
Soleus Capital Master Fund, L.P.13G/A7.30%3.35M shares–Jul 27, 20233 filingsFeb 11, 2025SEC
BlackRock, Inc.13G/A7.00%6.19M shares+1.00 ppfrom 6.00%Oct 24, 20245 filingsJul 30, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

97 Schedule 13D and 13G filings on Verastem, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on VSTM
Filed (ET)FilerFormStakeChangeEvent dateFiling
Nov 10, 20269:34 AM ETState Street Corp13G4.40%4.02M shares−1.40 ppfrom 5.80%Below 5%Sep 30, 2026SEC
Oct 30, 202612:40 PM ETVanguard Capital Management LLC13G/A4.83%4.38M shares−0.20 ppfrom 5.03%Below 5%Sep 30, 2026SEC
Aug 14, 202610:29 AM ETArmistice Capital, LLCand 1 other13G/A7.76%7.02M shares+2.53 ppfrom 5.23%Jun 30, 2026SEC
Aug 7, 202611:09 AM ETState Street Corp13G5.80%5.13M sharesNewJun 30, 2026SEC
Jul 31, 202610:45 AM ETVanguard Capital Management LLC13G5.03%4.42M sharesNewJun 30, 2026SEC
Jul 30, 202611:18 AM ETBlackRock, Inc.13G/A7.00%6.19M shares+1.00 ppfrom 6.00%Jun 30, 2026SEC
Jul 8, 20269:49 AM ETPolar Capital Holdings Plcand 2 others13G/A4.80%3.70M shares−0.29 ppfrom 5.09%Below 5%Mar 31, 2026SEC
May 15, 20264:21 PM ETForesite Capital Fund VI LPand 2 others13G/A3.60%3.15M shares−1.50 ppfrom 5.10%Below 5%Mar 31, 2026SEC
May 15, 202611:08 AM ETArmistice Capital, LLCand 1 other13G/A5.23%4.59M shares−0.07 ppfrom 5.30%Mar 31, 2026SEC
May 15, 20268:42 AM ETRTW Investments, LPand 1 other13G/A9.90%9.02M shares0.00 ppfrom 9.90%Mar 31, 2026SEC
May 15, 20266:13 AM ETBalyasny Asset Management LLCand 4 others13G/A1.55%1.36M shares−4.63 ppfrom 6.18%Below 5%Mar 31, 2026SEC
Mar 27, 20261:52 PM ETVanguard Group Inc13G/A0.00%0 shares−6.23 ppfrom 6.23%Below 5%Mar 13, 2026SEC
Feb 17, 20269:43 PM ETArmistice Capital, LLCand 1 other13G5.30%3.54M sharesNewDec 31, 2025SEC
Feb 17, 20264:33 PM ETPoint72 Asset Management, L.P.and 2 others13G/A1.30%995.0K shares−4.80 ppfrom 6.10%Below 5%Dec 31, 2025SEC
Feb 17, 20268:54 AM ETRTW Investments, LPand 1 other13G/A9.90%7.84M shares0.00 ppfrom 9.90%Dec 31, 2025SEC
Feb 17, 20266:49 AM ETBalyasny Asset Management LLCand 4 others13G/A6.18%4.77M shares−3.11 ppfrom 9.29%Dec 31, 2025SEC
Feb 13, 20265:09 PM ETNantahala Capital Management, LLCand 2 others13G/A4.72%3.80M shares−2.41 ppfrom 7.13%Below 5%Dec 31, 2025SEC
Jan 5, 20269:44 AM ETPolar Capital Holdings Plcand 2 others13G5.09%3.40M sharesNewDec 31, 2025SEC
Nov 21, 20254:00 PM ETDeep Track Capital, LPand 2 others13G9.99%7.72M sharesNewNov 14, 2025SEC
Nov 14, 20254:39 PM ETNantahala Capital Management, LLCand 2 others13G/A7.13%4.63M shares−2.86 ppfrom 9.99%Sep 30, 2025SEC
Nov 14, 20251:01 PM ETLogos Global Management LPand 4 others13G/A4.80%3.17M shares−1.40 ppfrom 6.20%Below 5%Sep 30, 2025SEC
Nov 14, 20256:05 AM ETBalyasny Asset Management LLCand 4 others13G/A9.29%5.72M shares−0.70 ppfrom 9.99%Sep 30, 2025SEC
Nov 13, 20254:19 PM ETStonepine Capital Management, LLCand 3 others13G/A4.30%2.67M shares−0.70 ppfrom 5.00%Below 5%Sep 30, 2025SEC
Oct 23, 20257:09 PM ETForesite Capital Fund VI LPand 2 others13G5.10%3.14M sharesNewOct 16, 2025SEC
Oct 17, 20256:24 PM ETBlackRock, Inc.13G6.00%3.68M shares+1.10 ppfrom 4.90%Sep 30, 2025SEC
Aug 14, 20255:56 PM ETOrbiMed Advisors LLC13G/A2.40%1.33M shares−3.20 ppfrom 5.60%Below 5%Jun 30, 2025SEC
Aug 14, 20258:13 AM ETRTW Investments, LPand 1 other13G/A9.90%5.63M shares+1.60 ppfrom 8.30%Jun 30, 2025SEC
Aug 14, 20256:18 AM ETBalyasny Asset Management LLCand 4 others13G/A9.99%5.78M shares+0.69 ppfrom 9.30%Jun 30, 2025SEC
Aug 13, 20255:03 PM ETBiotechnology Value Fund L Pand 9 others13G/A3.90%2.50M shares−6.09 ppfrom 9.99%Below 5%Aug 11, 2025SEC
Aug 13, 20255:00 PM ETBiotechnology Value Fund L Pand 9 others13G/A9.99%5.72M shares0.00 ppfrom 9.99%Jun 30, 2025SEC
Aug 12, 20254:57 PM ETBarclays PLC13G/A–0 shares–Jun 30, 2025SEC
Aug 6, 20251:10 PM ETStonepine Capital Management, LLCand 3 others13G5.00%2.83M shares+0.20 ppfrom 4.80%Jul 22, 2025SEC
Jul 29, 20254:05 PM ETHirschman Orinand 1 other13G/A3.60%2.00M shares−2.50 ppfrom 6.10%Below 5%Jun 30, 2025SEC
Jul 29, 20252:50 PM ETVanguard Group Inc13G6.23%3.42M shares+1.52 ppfrom 4.71%Jun 30, 2025SEC
Jul 28, 20257:39 PM ETLogos Global Management LPand 4 others13G6.20%3.42M sharesNewJul 21, 2025SEC
Jul 28, 20254:27 PM ETPoint72 Asset Management, L.P.and 2 others13G6.10%3.34M shares–Jul 25, 2025SEC
May 15, 20256:41 PM ETOrbiMed Advisors LLC13G/A5.60%2.86M shares–Mar 31, 2025SEC
May 15, 20254:39 PM ETNantahala Capital Management, LLCand 2 others13G/A9.99%5.46M shares0.00 ppfrom 9.99%Mar 31, 2025SEC
May 15, 20258:07 AM ETRTW Investments, LPand 1 other13G8.30%4.25M sharesNewMar 31, 2025SEC
May 15, 20256:05 AM ETBalyasny Asset Management LLCand 4 others13G/A9.30%4.79M shares+0.43 ppfrom 8.87%Mar 31, 2025SEC
May 2, 20255:00 PM ETSoleus Private Equity Fund III, L.P.and 8 others13G/A1.80%935.8K shares–Below 5%Mar 31, 2025SEC
Apr 30, 202511:13 AM ETVanguard Group Inc13G/A4.71%2.43M shares−0.48 ppfrom 5.19%Below 5%Mar 31, 2025SEC
Apr 24, 202511:26 AM ETBlackRock, Inc.13G/A4.90%2.52M shares–Below 5%Mar 31, 2025SEC
Mar 21, 20255:05 PM ETBarclays PLC13G/A8.87%3.95M shares0.00 ppfrom 8.87%Dec 31, 2024SEC
Feb 14, 20254:32 PM ETNantahala Capital Management, LLCand 2 others13G/A9.99%4.52M shares0.00 ppfrom 9.99%Dec 31, 2024SEC
Feb 14, 20254:26 PM ETBiotechnology Value Fund L Pand 9 others13G/A9.99%4.71M shares–Dec 31, 2024SEC
Feb 14, 20254:22 PM ETAlyeska Investment Group, L.P.and 2 others13G/A2.10%1.00M shares–Below 5%Dec 31, 2024SEC
Feb 14, 20252:26 PM ETBarclays PLC13G8.87%3.95M sharesNewDec 31, 2024SEC
Feb 14, 20257:27 AM ETBalyasny Asset Management LLCand 4 others13G8.87%3.95M sharesNewDec 31, 2024SEC
Feb 13, 202512:32 PM ETStonepine Capital Management, LLCand 3 others13G/A4.80%2.20M shares–Below 5%Dec 31, 2024SEC

Form 144: proposed insider sales

18 notices from officers, directors and other affiliates planning to sell Verastem, Inc. shares, newest first.

Form 144 notices for VSTM
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Oct 1, 20266:55 PM ETDan PatersonOfficer, Director44.1K$353.0KOct 1, 202610b5-1Shareworks by Morgan StanleySEC
Jul 23, 20264:32 PM ETGagnon Robert E.Director31.9K$188.0KJul 23, 2026Jefferies LLCSEC
Jun 25, 20264:01 PM ETGagnon Robert E.Director21.5K$90.5KJun 25, 2026Jefferies LLCSEC
Jun 22, 20267:50 PM ETDan PatersonOfficer, Director20.9K$87.2KJun 22, 202610b5-1Shareworks by Morgan StanleySEC
May 27, 20264:47 PM ETGagnon Robert E.Director20.1K$87.6KMay 27, 2026Jefferies LLCSEC
Jan 14, 20265:15 PM ETDan PatersonOfficer5.04K$36.1KJan 12, 202610b5-1Shareworks by Morgan StanleySEC
Jan 14, 20265:13 PM ETDan PatersonOfficer, Director10.3K$73.9KJan 12, 202610b5-1Shareworks by Morgan StanleySEC
Dec 10, 20254:02 PM ETAmendedPaterson DanOfficer11.8K$117.9KDec 5, 202510b5-1Raymond James & AssociatesSEC
Nov 21, 20254:20 PM ETKauffman MichaelBoard Member8.55K$83.9KNov 21, 202510b5-1Jefferies LLCSEC
Nov 21, 20254:10 PM ETBunn Paul A.Board Member6.25K$61.3KNov 21, 202510b5-1Jefferies LLCSEC
Oct 9, 20254:05 PM ETBunn Paul A.Board Member8.33K$74.5KOct 9, 202510b5-1Jefferies LLCSEC
Sep 4, 202512:39 PM ETPaterson DanOfficer · Director31.8K$310.4KSep 17, 202510b5-1Raymond James & AssociatesSEC
Jun 20, 20255:35 PM ETDan PatersonOfficer · Director17.8K$91.3KJun 20, 202510b5-1Shareworks by Morgan StanleySEC
May 20, 20257:49 PM ETDaniel CalkinsOfficer11.1K$90.3KMay 20, 202510b5-1Shareworks by Morgan StanleySEC
May 20, 20257:48 PM ETDan PatersonOfficer, Director58.7K$477.0KMay 20, 202510b5-1Shareworks by Morgan StanleySEC
Jan 13, 20255:03 PM ETDan PatersonOfficer, Director8.57K$44.9KJan 13, 202510b5-1Shareworks by Morgan StanleySEC
Feb 6, 20244:40 PM ETGagnon Robert E.Director9.20K$113.2KFeb 6, 202410b5-1Jefferies LLCSEC
Jan 12, 20244:42 PM ETGagnon Robert E.Director9.20K$97.9KJan 12, 202410b5-1Jefferies LLCSEC