Syndax Pharmaceuticals Inc

SNDXNASDAQ

$17.83+0.23 (+1.31% today)

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Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Syndax Pharmaceuticals Inc price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+8.7%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	10.12%	$197M	0.00%	Not reported
Kynam Capital Management, LP	9.03%	$176M	9.73%	Not reported
Goldman Sachs Group Inc	6.57%	$128M	0.01%	Not reported
State Street Corp	6.35%	$124M	0.00%	Not reported
Bank of America Corp	4.54%	$88.4M	0.01%	Not reported
Vanguard Capital Management LLC	4.41%	$85.9M	0.00%	Not reported
Deerfield Management Company, L.P.	4.24%	$82.6M	0.86%	Not reported
Eversept Partners, LP	3.14%	$61.2M	3.17%	Reduce 3.03%
Geode Capital Management, LLC	2.90%	$56.5M	0.00%	Not reported
Hood River Capital Management LLC	2.88%	$56.1M	0.41%	Add 8.92%
Kingdon Capital Management, L.L.C.	2.80%	$54.7M	5.60%	Not reported
Millennium Management LLC	2.30%	$44.9M	0.02%	Not reported
Vanguard Portfolio Management LLC	2.16%	$42M	0.00%	Not reported
UBS Group AG	2.12%	$41.4M	0.01%	Not reported
Elmind Capital, LP	2.08%	$40.6M	10.19%	Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	2.01%	$39.1M	0.04%	Add 3.33%
Soleus Capital Management, L.P.	1.83%	$35.6M	1.23%	Not reported
Two Sigma Investments, LP	1.77%	$34.5M	0.03%	Not reported
Orbimed Advisors LLC	1.73%	$33.7M	0.62%	Not reported
Nuveen, LLC	1.53%	$29.8M	0.01%	Not reported
MPM Bioimpact LLC	1.50%	$29.2M	1.78%	Reduce 0.54%
Aisling Capital Management LP	1.48%	$28.8M	6.10%	Not reported
Woodline Partners LP	1.40%	$27.3M	0.08%	Not reported
D. E. Shaw & Co., Inc.	1.39%	$27.1M	0.01%	Not reported
Catalio Capital Management, LP	1.36%	$26.6M	4.99%	Add 16.48%
Silverarc Capital Management, LLC	1.36%	$26.5M	2.76%	Add 36.60%
Prosight Management, LP	1.35%	$26.2M	4.52%	Add 55.84%
Trails Edge Capital Partners, LP	1.25%	$24.3M	3.85%	Add 58.16%
Algert Global LLC	1.18%	$23M	0.27%	Not reported
Bank of New York Mellon Corp	1.17%	$22.7M	0.00%	Not reported
Sphera Funds Management Ltd.	1.14%	$22.2M	2.89%	Add 40.03%
Loomis Sayles & Co L P	1.04%	$20.2M	0.03%	New Not reported
Parkman Healthcare Partners LLC	0.98%	$19.2M	1.96%	Reduce 2.69%
Ensign Peak Advisors, Inc	0.97%	$19M	0.03%	Reduce 12.43%
Palo Alto Investors LP	0.97%	$18.9M	2.61%	Not reported
AQR Capital Management LLC	0.96%	$18.7M	0.01%	Not reported
Northern Trust Corp	0.95%	$18.5M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.91%	$17.8M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.71%	$13.8M	0.00%	Not reported
Morgan Stanley	0.66%	$12.9M	0.00%	Not reported
Rhenman & Partners Asset Management AB	0.63%	$12.2M	1.16%	Add 47.73%
Apis Capital Advisors, LLC	0.62%	$12.2M	1.18%	Add 1.09%
Panagora Asset Management Inc	0.61%	$11.9M	0.04%	Not reported
Qube Research & Technologies Ltd	0.54%	$10.4M	0.01%	Not reported
First Trust Advisors LP	0.51%	$9.98M	0.01%	Not reported
Susquehanna International Group, LLP	0.51%	$9.93M	0.00%	Not reported
Granahan Investment Management, LLC	0.50%	$9.77M	0.35%	Not reported
Knott David M Jr	0.49%	$9.56M	5.05%	Add 3.61%
Jump Financial, LLC	0.45%	$8.81M	0.07%	Not reported
Aberdeen Group plc	0.42%	$8.15M	0.01%	Add 29.90%

50 of 227 holders

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