SNDX Syndax Pharmaceuticals, Inc

NASDAQ
$18.20

Syndax Pharmaceuticals, Inc (SNDX) Institutional Ownership

What the institutions did with SNDX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
277
filed both this quarter and last
Managers holding
238
-6 on the quarter
Buyers
129
33 opened new
Sellers
116
39 sold out entirely
Buyer share
52.7%
of managers who traded it
Breadth
+5.3
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 9.0M 8.3%
Kynam Capital Management, LP 8.1M 7.4%
GOLDMAN SACHS GROUP INC 5.9M 5.4%
STATE STREET CORP 5.7M 5.2%
BANK OF AMERICA CORP /DE/ 4.0M 3.7%
VANGUARD CAPITAL MANAGEMENT LLC 3.9M 3.6%
DEERFIELD MANAGEMENT COMPANY, L.P. 3.8M 3.5%
Eversept Partners, LP 2.8M 2.6%
GEODE CAPITAL MANAGEMENT, LLC 2.6M 2.4%
Hood River Capital Management LLC 2.6M 2.4%
KINGDON CAPITAL MANAGEMENT, L.L.C. 2.5M 2.3%
FRANKLIN RESOURCES INC 2.3M 2.1%
MILLENNIUM MANAGEMENT LLC 2.1M 1.9%
VANGUARD PORTFOLIO MANAGEMENT LLC 1.9M 1.8%
UBS Group AG 1.9M 1.8%
Elmind Capital, LP 1.9M 1.7%
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 1.8M 1.7%
Candriam S.C.A. 1.7M 1.6%
Soleus Capital Management, L.P. 1.6M 1.5%
TWO SIGMA INVESTMENTS, LP 1.6M 1.5%
ORBIMED ADVISORS LLC 1.5M 1.4%
Nuveen, LLC 1.4M 1.3%
MPM BIOIMPACT LLC 1.3M 1.2%
Aisling Capital Management LP 1.3M 1.2%
Woodline Partners LP 1.3M 1.2%

Largest changes

Manager Action Previous Current Change
STEMPOINT CAPITAL LP Sold Out 2.4M 0 -2.4M
Point72 Asset Management, L.P. Sold Out 2.0M 0 -2.0M
MILLENNIUM MANAGEMENT LLC Increased 199.5K 2.1M +1.9M
STATE STREET CORP Increased 4.4M 5.7M +1.2M
LOOMIS SAYLES & CO L P New 0 923.6K +923.6K
GOLDMAN SACHS GROUP INC Increased 5.0M 5.9M +864.5K
Candriam S.C.A. Increased 925.3K 1.7M +770.7K
BlackRock, Inc. Increased 8.3M 9.0M +765.6K
UBS Group AG Increased 1.2M 1.9M +740.1K
ORBIMED ADVISORS LLC Increased 962.3K 1.5M +579.7K
FIRST TRUST ADVISORS LP New 0 456.7K +456.7K
Qube Research & Technologies Ltd Increased 36.0K 477.2K +441.1K
Prosight Management, LP Increased 770.0K 1.2M +430.0K
GEODE CAPITAL MANAGEMENT, LLC Increased 2.2M 2.6M +427.1K
Trails Edge Capital Partners, LP Increased 701.8K 1.1M +408.2K
Jump Financial, LLC New 0 402.8K +402.8K
Walleye Capital LLC Reduced 385.0K 5.6K -379.3K
CITADEL ADVISORS LLC Reduced 630.9K 258.3K -372.7K
JUPITER ASSET MANAGEMENT LTD New 0 366.6K +366.6K
D. E. Shaw & Co., Inc. Reduced 1.6M 1.2M -361.9K
Integral Health Asset Management, LLC Sold Out 350.0K 0 -350.0K
Jones Hill Capital LP New 0 340.0K +340.0K
JANE STREET GROUP, LLC Sold Out 335.5K 0 -335.5K
SILVERARC CAPITAL MANAGEMENT, LLC Increased 889.0K 1.2M +325.4K
Alyeska Investment Group, L.P. New 0 308.5K +308.5K
MORGAN STANLEY Reduced 893.9K 589.0K -305.0K
Verition Fund Management LLC New 0 304.9K +304.9K
PANAGORA ASSET MANAGEMENT INC Increased 249.4K 546.5K +297.1K
SPHERA FUNDS MANAGEMENT LTD. Increased 724.6K 1.0M +290.0K
ENVESTNET ASSET MANAGEMENT INC Increased 41.9K 327.6K +285.7K
MACKENZIE FINANCIAL CORP New 0 280.1K +280.1K
HRT FINANCIAL LP Increased 88.9K 363.1K +274.2K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Increased 196.6K 454.1K +257.5K
CANADA PENSION PLAN INVESTMENT BOARD Sold Out 229.6K 0 -229.6K
Y-Intercept (Hong Kong) Ltd New 0 212.7K +212.7K
Hood River Capital Management LLC Increased 2.4M 2.6M +210.0K
BANK OF AMERICA CORP /DE/ Reduced 4.2M 4.0M -204.7K
ESSEX INVESTMENT MANAGEMENT CO LLC Sold Out 199.0K 0 -199.0K
Pictet Asset Management Holding SA Increased 12.4K 207.9K +195.6K
Squarepoint Ops LLC Increased 181.6K 370.3K +188.8K
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 1.7M 1.9M +184.7K
ALLIANCEBERNSTEIN L.P. Reduced 288.6K 106.0K -182.5K
Rhenman & Partners Asset Management AB Increased 379.3K 560.3K +181.0K
RENAISSANCE TECHNOLOGIES LLC Reduced 498.2K 321.6K -176.6K
CITIGROUP INC Increased 20.3K 195.7K +175.4K
Catalio Capital Management, LP Increased 1.0M 1.2M +172.0K
FMR LLC Reduced 174.0K 5.6K -168.4K
Pale Fire Capital SE Reduced 284.5K 125.6K -158.9K
Granahan Investment Management, LLC Increased 306.3K 447.0K +140.7K
FRANKLIN RESOURCES INC Increased 2.2M 2.3M +136.4K
Nuveen, LLC Reduced 1.5M 1.4M -130.1K
Hennion & Walsh Asset Management, Inc. Increased 214.8K 342.9K +128.1K
AQR CAPITAL MANAGEMENT LLC Reduced 980.3K 853.3K -127.0K
PFM Health Sciences, LP Reduced 245.0K 118.4K -126.6K
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Reduced 331.7K 207.3K -124.4K
Ensign Peak Advisors, Inc Reduced 991.0K 867.8K -123.1K
ALGERT GLOBAL LLC Increased 928.6K 1.1M +122.9K
DAFNA Capital Management LLC Increased 217.4K 335.3K +117.9K
Cinctive Capital Management LP Sold Out 117.3K 0 -117.3K
SCHRODER INVESTMENT MANAGEMENT GROUP New 0 115.2K +115.2K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.