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SNDX SYNDAX PHARMACEUTICALS INC

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COM (common), issuer CIK 1395937

224 managers (227 13F filers) reported a position in SNDX shares at 2025-09-30, 101,112,746 shares in all. 40 filers opened a position and 28 filers sold out during the quarter.

Managers
224
13F filers
227
New
40
Added
82
Reduced
72
Sold out
28
Shares held by filers
101,112,746

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
C M BIDWELL & ASSOCIATES LTD308$4.74K<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP275$4.31K<0.01%013F-HRTimelineGroup
Steward Partners Investment Advisory, L…231$3.55K<0.01%013F-HRTimeline
Sunbelt Securities, Inc.230$3.54K<0.01%new13F-HRTimeline
True Wealth Design, LLC209$3.22K<0.01%+18413F-HRTimeline
Washington Trust Advisors, Inc.209$3.21K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.202$3.11K<0.01%-113F-HRTimeline
CROWLEY WEALTH MANAGEMENT, INC.200$3.08K<0.01%013F-HRTimeline
GAMMA Investing LLC185$2.85K<0.01%+14213F-HRTimeline
Global Retirement Partners, LLC158$2.42K<0.01%-15713F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO128$1.97K<0.01%013F-HRTimelineGroup
Smartleaf Asset Management LLC95$1.48K<0.01%+4413F-HRTimeline
ROTHSCHILD INVESTMENT LLC95$1.46K<0.01%+4013F-HRTimeline
Clearstead Advisors, LLC88$1.35K<0.01%new13F-HRTimeline
BELLEVUE ASSET MANAGEMENT, LLC79$1.22K<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB71$1.09K<0.01%013F-HRTimeline
Avion Wealth100$1K<0.01%013F-HRTimeline
IFP Advisors, Inc51$785<0.01%+5113F-HR/ATimeline
Caitong International Asset Management …47$723<0.01%-1,23013F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC40$615<0.01%new13F-HRTimelineGroup
Farther Finance Advisors, LLC37$569<0.01%+1413F-HRTimeline
Parkside Financial Bank & Trust35$539<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC3$47<0.01%new13F-HRTimeline
Covestor Ltd8$00%-2913F-HRTimelineValue filed as zero, left out of ratios.