Public ownership evidence

Verastem, Inc. (VSTM) Ownership Disclosures

Read VSTM insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-02T21:16:49.000Z

Recent Form 4 activity

2026-10-022026-10-01Paterson DanS44,121Not reported
2026-10-022026-10-01Calkins DanielS2,566Not reported
2026-09-242026-09-21Calkins DanielS55Not reported
2026-08-062026-08-03Paterson DanS1,302Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25939$3,587None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-253,587$939,000None
Palo Alto Investors LP2026-06-302026-08-20309,685$1,182,997None
Nantahala Capital Management, LLC2026-06-302026-08-203,584,820$13,694,012None
CANTOR FITZGERALD, L. P.2026-06-302026-08-20140,000$534,800None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2042,803$163,507None
Palo Alto Investors LP2026-06-302026-08-19309,685$1,182,997None
Palo Alto Investors LP2026-06-302026-08-18309,685$1,182,997None
Stonepine Capital Management, LLC2026-06-302026-08-183,349,627$12,795,575None
Jefferies Financial Group Inc.2026-06-302026-08-18496,529$1,896,741None
TORONTO DOMINION BANK2026-06-302026-08-15460,413$1,758,778None
Graham Capital Management, L.P.2026-06-302026-08-1540,131$153,300None
SEI INVESTMENTS CO2026-06-302026-08-1526,622$101,696None
JPL Wealth Management, LLC2026-06-302026-08-1560$230None
Rafferty Asset Management, LLC2026-06-302026-08-1594,204$359,859None
ADAR1 Capital Management, LLC2026-06-302026-08-1575,800$289,556None
Deep Track Capital, LP2026-06-302026-08-155,740,850$21,930,047None
XTX Topco Ltd2026-06-302026-08-15561,791$2,146,042None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15243,950$931,889None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15243,950$931,889None
ExodusPoint Capital Management, LP2026-06-302026-08-1599,236$379,082None
Qube Research & Technologies Ltd2026-06-302026-08-151,628,488$6,220,824None
Diametric Capital, LP2026-06-302026-08-15265,539$1,014,358None
Caption Management, LLC2026-06-302026-08-1538,300$146,306Call
OSAIC HOLDINGS, INC.2026-06-302026-08-152,000$7,640None
OSAIC HOLDINGS, INC.2026-06-302026-08-152,154$8,228None
Man Group plc2026-06-302026-08-1567,597$258,221None
ACORN CAPITAL ADVISORS, LLC2026-06-302026-08-151,469,153$5,612,164None
MetLife Investment Management, LLC2026-06-302026-08-1559,249$226,331None
Rosalind Advisors, Inc.2026-06-302026-08-153,986,509$15,228,464None
JANE STREET GROUP, LLC2026-06-302026-08-1524,900$95,118Put
JANE STREET GROUP, LLC2026-06-302026-08-1514,100$53,862Call
Regal Investment Advisors LLC2026-06-302026-08-1514,071$53,751None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-1568,541$261,827None
SPHERA FUNDS MANAGEMENT LTD.2026-06-302026-08-15632,632$2,416,654None
Legal & General Group Plc2026-06-302026-08-157,739$29,563None
RTW INVESTMENTS, LP2026-06-302026-08-156,635,793$25,348,729None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1528,500$108,870Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15415,000$1,585,300Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15238,429$910,799None
Stonepine Capital Management, LLC2026-06-302026-08-153,349,627$12,795,575None
Ikarian Capital, LLC2026-06-302026-08-15213,865$816,965None
Opaleye Management Inc.2026-06-302026-08-151,800,000$6,876,000None
Exome Asset Management LLC2026-06-302026-08-15429,041$1,638,937None
Verdad Advisers, LP2026-06-302026-08-1524,237$92,585None
J. Goldman & Co LP2026-06-302026-08-15650,074$2,483,283None
ARMISTICE CAPITAL, LLC2026-06-302026-08-157,024,000$26,831,680None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-152,078,003$7,937,971None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-1585,400$326,228Call
LAZARD ASSET MANAGEMENT LLC2026-06-302026-08-1518,466$70,540None

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.