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Syndax Pharmaceuticals, Inc. (SNDX) Institutional Ownership & Insider Trading

242 institutions reported holding Syndax Pharmaceuticals, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 9 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

SNDXSyndax Pharmaceuticals, Inc.Follow SNDX — free
Biotechnology · Healthcare
—
Price chart with a free account
Market cap
1.2B
P/E TTM
—
Dividend yield
—
52-week
—
Next earnings
29 Oct, in 5 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

242 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +7.5%.

Increased+95New+31Decreased-73Closed-34

Largest moves, shares (millions)

Millennium Management+1.9MState Street+1.2MLoomis Sayles & Co L P+0.9MStempoint Capital-2.4MPoint72 Asset Management-2.0MWalleye Capital-0.4M

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters
-0.2Sep 24+8.8Dec 24+4.1Mar 25+0.6Jun 25-0.6Sep 25-3.3Dec 25-2.5Mar 26+7.5Jun 26
QuarterHoldersShares held, MChangeIncreasedNewDecreasedClosed
Jun 26242108+7.5%95317334
Mar 26245101-2.7%89346522
Dec 25227100-3.3%80277625
Sep 25223101-0.6%72386926
Jun 25217102+0.6%81286625
Mar 25216101+4.3%82275522
Dec 2421598+9.9%84245528
Sep 2420989-0.3%75345320

Syndax Pharmaceuticals, Inc. — questions

Who owns Syndax Pharmaceuticals, Inc. stock?
242 institutions reported Syndax Pharmaceuticals, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (10.1%), Kynam Capital Management, LP (9.0%), GOLDMAN SACHS GROUP INC (6.6%).
Are Syndax Pharmaceuticals, Inc. insiders buying or selling?
9 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Syndax Pharmaceuticals, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.