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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 2026-11-10T07:40:50.020Z

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2026-11-062026-11-03Paterson DanS1,299Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-11-03 and its public availability date is 2026-11-06. Subtracting those calendar dates gives 3 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001104659-26-123510 ↗SEC 0001104659-26-113362 ↗SEC 0001104659-26-113361 ↗

Recent Form 4 activity

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2026-11-062026-11-03Paterson DanS1,299Not reported
2026-10-022026-10-01Paterson DanS44,121Not reported
2026-10-022026-10-01Calkins DanielS2,566Not reported
2026-09-242026-09-21Calkins DanielS55Not reported

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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.

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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.

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Palo Alto Investors LP ↗Nantahala Capital Management, LLC ↗CANTOR FITZGERALD, L. P. ↗MERCER GLOBAL ADVISORS INC /ADV ↗Palo Alto Investors LP ↗Palo Alto Investors LP ↗Stonepine Capital Management, LLC ↗Jefferies Financial Group Inc. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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.

Institutional source directory ↗Congressional source directory ↗

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.