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Public ownership evidence

Syndax Pharmaceuticals, Inc. (SNDX) Ownership Disclosures

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

As of 2026-10-14T02:54:47.600Z

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Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

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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.

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VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2621,000$459,060None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2593,481$2,043,495None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,043,495$93,481,000None
Assenagon Asset Management S.A.2026-06-302026-08-2241,737$912,371None
Palo Alto Investors LP2026-06-302026-08-20864,986$18,908,594None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2018,490$404,191None
Palo Alto Investors LP2026-06-302026-08-19864,986$18,908,594None
Ensign Peak Advisors, Inc2026-03-312026-08-19990,969$23,149,036None
Ensign Peak Advisors, Inc2025-12-312026-08-191,598,544$33,585,409None
Ensign Peak Advisors, Inc2025-09-302026-08-19809,064$12,447,450None
Palo Alto Investors LP2026-06-302026-08-18864,986$18,908,594None
Seven Fleet Capital Management LP2026-06-302026-08-1877,930$1,645,046None
Trails Edge Capital Partners, LP2026-06-302026-08-151,110,000$24,264,600None
SummitTX Capital, L.P.2026-06-302026-08-15140,797$3,077,822None
Graham Capital Management, L.P.2026-06-302026-08-1519,615$428,784None
SEI INVESTMENTS CO2026-06-302026-08-15191,291$4,181,621None
SEI INVESTMENTS CO2026-06-302026-08-151,843$40,270None
Rafferty Asset Management, LLC2026-06-302026-08-1597,787$2,137,624None
Marex Group Ltd2026-06-302026-08-1525,260$552,184None
Quarry LP2026-06-302026-08-151$22None
Catalio Capital Management, LP2026-06-302026-08-151,215,698$26,575,158None
Kynam Capital Management, LP2026-06-302026-08-158,050,959$175,993,964None
Ameritas Advisory Services, LLC2026-06-302026-08-154$87None
Velan Capital Investment Management LP2026-06-302026-08-1510,000$218,600None
XTX Topco Ltd2026-06-302026-08-1559,164$1,293,325None
Aquatic Capital Management LLC2026-06-302026-08-1578,922$1,725,235None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15814,303$17,800,664None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15814,303$17,800,664None
Qube Research & Technologies Ltd2026-06-302026-08-15477,182$10,431,199None
Eversept Partners, LP2026-06-302026-08-152,798,210$61,168,871None
OSAIC HOLDINGS, INC.2026-06-302026-08-15225$4,919None
OSAIC HOLDINGS, INC.2026-06-302026-08-152,767$60,485None
Schonfeld Strategic Advisors LLC2026-06-302026-08-15236,717$5,174,631None
Squarepoint Ops LLC2026-06-302026-08-15370,317$8,095,130None
Man Group plc2026-06-302026-08-15213,703$4,671,548None
Trexquant Investment LP2026-06-302026-08-15255,949$5,595,045None
MetLife Investment Management, LLC2026-06-302026-08-1551,930$1,135,190None
Engineers Gate Manager LP2026-06-302026-08-1521,401$467,826None
JANE STREET GROUP, LLC2026-06-302026-08-1519,700$430,642Call
SPHERA FUNDS MANAGEMENT LTD.2026-06-302026-08-151,014,606$22,179,287None
Legal & General Group Plc2026-06-302026-08-1542,059$919,409None
Legal & General Group Plc2026-06-302026-08-1514,786$323,222None
Legal & General Group Plc2026-06-302026-08-158,638$188,827None
HRT FINANCIAL LP2026-06-302026-08-15363,147$7,938,000None
Ensign Peak Advisors, Inc2026-06-302026-08-15867,831$18,970,786None
Verition Fund Management LLC2026-06-302026-08-15304,939$6,665,967None
Verition Fund Management LLC2026-06-302026-08-15304,939$6,665,967None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15259,400$5,670,484Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1547,900$1,047,094Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15454,101$9,926,648None

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

VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Assenagon Asset Management S.A. ↗Palo Alto Investors LP ↗MERCER GLOBAL ADVISORS INC /ADV ↗Palo Alto Investors LP ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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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.