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VSTM · Verastem, Inc. · Shareholders & Ownership

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$9.21 -0.13 (-1.39%) At close · Oct 21
Market Cap
$871.22M
Shares
90.56M
Volume · Oct 21 3.06M Avg daily vol (3M) 3.08M

Every disclosed holder of VSTM in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns VSTM

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 95,260,485 105.19%
Insiders (Forms 3, 4, 5) 1,429,647 1.58%
13D/G-only blocks 22,678,141 25.04%
Remaining 28,804,832 -31.81%
Registered funds (N-PORT, not summed) 20,160,978 22.26%

Shares outstanding: 90,563,441, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of VSTM

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
9,192,447
1.1
BlackRock, Inc.
13G CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
6,187,012
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,066,204
1.3
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
750,135
1.4
BlackRock Advantage Small Cap Core Fund
Fund S000039982 · Registered fund · May 29, 2026
BlackRock Funds, not summed
701,337
1.5
iShares Micro-Cap ETF
Fund S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
268,301
2
ARMISTICE CAPITAL, LLC
13F CIK 1601086 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
7,024,000
2.1
ARMISTICE CAPITAL, LLC
13G CIK 1601086 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
7,024,000
3
RTW INVESTMENTS, LP
13F CIK 1493215 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
6,635,793
4
Deep Track Capital, LP
13F CIK 1856083 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,740,850
5
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
5,133,859
5.1
STATE STREET CORP
13G CIK 93751 · Bank · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
5,133,859
5.2
State Street(R) SPDR(R) S&P(R) Biotech ETF
Fund S000010018 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
3,389,113
5.3
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
25,900
5.4
State Street Total Return V.I.S. Fund
Fund S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
2,216
5.5
State Street Balanced Index Fund
Fund S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
454
6
Rosalind Advisors, Inc.
13F CIK 1622627 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
3,986,509
7
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,851,508
7.1
VANGUARD CAPITAL MANAGEMENT LLC
13G CIK 2100119 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
4,423,544
8
Polar Capital Holdings Plc
13G CIK 1837309 · Registered investment adviser · Mar 31, 2026
Rule 13d-1(b), qualified institution
3,700,000
9
Nantahala Capital Management, LLC
13F CIK 1472322 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,584,820
10
Soleus Capital Master Fund, L.P.
13G CIK 1812275 · Unknown · Dec 31, 2024
Rule 13d-1(c), passive investor
3,350,692
11
Stonepine Capital Management, LLC
13F CIK 1440771 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,349,627
12
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,266,870
13
Logos Global Management LP
13G CIK 1792126 · Registered investment adviser · Sep 30, 2025
Rule 13d-1(b), qualified institution
3,175,000
14
Foresite Capital Fund VI, L.P.
13G CIK 1932516 · Unknown · Mar 31, 2026
Rule 13d-1(c), passive investor
3,146,631
15
Foresite Capital Management VI LLC
13F CIK 2013341 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
3,146,631
16
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,811,948
17
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
2,721,178
17.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
29,304
17.2
Goldman Sachs Small Cap Growth Insights Fund
Fund S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
18,933
17.3
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
15,983
17.4
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
9,234
18
BIOTECHNOLOGY VALUE FUND L P
13G CIK 918923 · Unknown · Aug 11, 2025
Rule 13d-1(c), passive investor
2,500,000
19
BAKER BROS. ADVISORS LP
13F CIK 1263508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,499,338
20
Alyeska Investment Group, L.P.
13F CIK 1453072 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,289,625
21
MILLENNIUM MANAGEMENT LLC
13F CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,078,003
22
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,074,145
23
Orin Hirschman
13G CIK 1131362 · Investment adviser · Jun 30, 2025
Rule 13d-1(b), qualified institution
2,003,179
24
AIGH Capital Management LLC
13F CIK 1835943 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,927,000
25
Opaleye Management Inc.
13F CIK 1595855 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,800,000
26
Balyasny Asset Management L.P.
13F CIK 1218710 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,686,575
27
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,628,488
28
Vivo Opportunity Fund Holdings, L.P.
13G CIK 1728970 · Unknown · Dec 31, 2023
Rule 13d-1(c), passive investor
1,538,461
29
ACORN CAPITAL ADVISORS, LLC
13F CIK 2054410 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,469,153
30
VANGUARD EXPLORER FUND
Fund S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
1,397,172
31
ORBIMED ADVISORS LLC
13G CIK 1055951 · Registered investment adviser · Jun 30, 2025
Rule 13d-1(c), passive investor
1,333,333
32
NEXTBio Capital Management LP
13F CIK 2038158 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,306,800
33
FRANKLIN RESOURCES INC
13F CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,105,021
33.1
Franklin Biotechnology Discovery Fund
Fund S000006882 · Registered fund · Jul 31, 2026
Franklin Strategic Series, not summed
401,744
34
Pinnacle Financial Partners, Inc.
13F CIK 2082866 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,086,440
35
Point72 Asset Management, L.P.
13G CIK 1603466 · Registered investment adviser · Dec 31, 2025
Rule 13d-1(c), passive investor
995,026
36
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
960,598
37
Soleus Capital Management, L.P.
13G CIK 1955982 · Unknown · Mar 31, 2025
Rule 13d-1(c), passive investor
935,819
38
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
934,565
38.1
AQR Small Cap Momentum Style Fund
Fund S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
10,704
39
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
889,975
40
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
715,822
41
Hennion & Walsh Asset Management, Inc.
13F CIK 1861642 · Unknown · Sep 30, 2026
699,828
42
PANAGORA ASSET MANAGEMENT INC
13F CIK 883677 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
666,874
43
Paterson Dan
Insider CIK 1563202 · Oct 1, 2026
Director, President and CEO, issuer-wide
652,712
44
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
651,495
44.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
41,412
45
J. Goldman & Co LP
13F CIK 1412741 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
650,074
46
SPHERA FUNDS MANAGEMENT LTD.
13F CIK 1496201 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
632,632
47
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
626,298
47.1
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
872,784
47.2
Fidelity Enhanced Small Cap Core ETF
Fund S000081807 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
575,899
47.3
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
378,589
47.4
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
133,691
47.5
Fidelity Series Total Market Index Fund
Fund S000065248 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
109,968
48
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
616,862
49
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
604,480
50
XTX Topco Ltd
13F CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
561,791

21 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 239 holders

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Key facts CIK 1526119 CUSIP 92337C203 13F (30d) 13 filings 13 filers Visit website Investor relations