Syndax Pharmaceuticals Inc (SNDX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

12,635,667Shares held by institutions

$283,923,437Value of institutional holdings

118.16%Institutional ownership %

-3.63%Shares Changed QoQ

216No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Syndax Pharmaceuticals Inc (NASDAQ:SNDX) showed up in the 13F filings of 223 institutional investors as of December 2025.

They owned 112.9% of outstanding stock in December 2025, down from 121.9% the prior quarter.
They increased total shares held in Syndax Pharmaceuticals by 0.13% from last quarter, and the number of investors in SNDX increased 4.21% annually.
Activity in SNDX broke down as 109 buyers, 82 sellers, and 32 unchanged among 223 total holders.
Combined, these investors held 97.83Mn shares in SNDX for December 2025, up by 123.3K shares quarter on quarter, and down 5.63Mn shares year over year.
As of December 31, 2025, the biggest holder of Syndax Pharmaceuticals is BlackRock, Inc. at 8.24Mn shares, representing 9.51% of shares outstanding.
Top purchasers of SNDX stock for the quarter ending December 2025 included Hood River Capital Management LLC (2.32Mn), Elmind Capital, LP (1.86Mn), VANGUARD GROUP INC (1.09Mn), State Street Corp (743.0K), Point72 Asset Management, L.P. (627.01K).
Leading sellers of Syndax Pharmaceuticals shares for the quarter ending December 2025 were Bank Of America Corp /De/ (2.68Mn), Assenagon Asset Management S.A. (1.74Mn), MILLENNIUM MANAGEMENT LLC (994.52K), UBS Group AG (958.29K), Qube Research & Technologies Ltd (956.71K).
Syndax Pharmaceuticals's 10 largest shareholders as of December 2025 include BlackRock, Inc. (8.24Mn), Kynam Capital Management, LP (8.05Mn), VANGUARD GROUP INC (6.23Mn), Goldman Sachs Group Inc (5.7Mn), Point72 Asset Management, L.P. (4.88Mn), Bank Of America Corp /De/ (4.71Mn), State Street Corp (4.6Mn), Eversept Partners, LP (3.31Mn), Franklin Resources Inc (2.42Mn), KINGDON CAPITAL MANAGEMENT, L.L.C. (2.35Mn) per Business Quant data.

223 Institutional Holders

12,635,667 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-386,242	-4.48%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	1,091,717	21.25%	$0.00
Kynam Capital Management, LP	31 Dec, 2025	-469,041	-5.51%	$0.00
Barclays Plc	31 Dec, 2025	-221,018	-41.26%	$0.00
Goldman Sachs Group Inc	31 Dec, 2025	208,941	3.81%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	627,006	14.74%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	-11,062	-19.57%	$0.00
Bank Of America Corp /De/	31 Dec, 2025	-2,684,760	-36.30%	$0.00
Eversept Partners, LP	31 Dec, 2025	-152,906	-4.41%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	944	0.00%	$0.00
State Street Corp	31 Dec, 2025	743,003	19.28%	$0.00
Soleus Capital Management, L.P.	31 Dec, 2025	235,000	11.68%	$0.00
Franklin Resources Inc	31 Dec, 2025	31,105	1.30%	$0.00
Elmind Capital, LP	31 Dec, 2025	1,855,000	0.00%	$0.00
KINGDON CAPITAL MANAGEMENT, L.L.C.	31 Dec, 2025	-150,000	-6.00%	$0.00
Nuveen, LLC	31 Dec, 2025	7,204	0.49%	$0.00
Hood River Capital Management LLC	31 Dec, 2025	2,316,553	0.00%	$0.00
STEMPOINT CAPITAL LP	31 Dec, 2025	-26,826	-1.96%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	-399	-0.02%	$0.00
MPM BioImpact LLC	31 Dec, 2025	-37,972	-2.76%	$0.00

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