SNDX Insider Trading

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Insider Ownership Percentage: 4.10%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $3,602,021.07

Syndax Pharmaceuticals Insider Trading History Chart

Syndax Pharmaceuticals Share Price & Price History

^$19.74

▲ +0.03 (0.15%)

As of 12/4/2025 05:00 PM ET

Days: 30 | 90 | 365

Syndax Pharmaceuticals Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/8/2025	Michael A. Metzger	CEO	Sell	157,307	$16.41	$2,581,407.87	298,661
8/18/2025	Dennis Podlesak	Director	Sell	19,200	$15.84	$304,128.00	191,763
8/15/2025	Dennis Podlesak	Director	Sell	19,200	$15.54	$298,368.00	191,763
7/16/2025	Keith A. Goldan	CFO	Sell	1,296	$9.29	$12,039.84	92,450
7/16/2025	Michael A. Metzger	CEO	Sell	7,534	$9.29	$69,990.86	298,661
2/10/2025	Keith A. Goldan	CFO	Sell	3,777	$15.50	$58,543.50	90,746
2/10/2025	Michael A. Metzger	CEO	Sell	13,288	$15.50	$205,964.00	300,121
2/10/2025	Neil Gallagher	Insider	Sell	4,618	$15.50	$71,579.00	85,095
6/14/2024	Keith A. Goldan	CFO	Buy	1,250	$20.03	$25,037.50	52,623
8/9/2023	Briggs Morrison	Director	Sell	52,855	$18.27	$965,660.85	17,836
8/2/2023	William Meury	Director	Sell	83,000	$20.46	$1,698,180.00	48,000
7/10/2023	Briggs Morrison	Director	Sell	52,855	$20.40	$1,078,242.00	17,836
6/13/2023	Keith A. Goldan	CFO	Sell	577	$22.31	$12,872.87	2,628
6/9/2023	Briggs Morrison	Director	Sell	52,855	$21.18	$1,119,468.90	17,836
5/9/2023	Briggs Morrison	Director	Sell	52,855	$21.41	$1,131,625.55	17,836
4/10/2023	Briggs Morrison	Director	Sell	52,855	$19.53	$1,032,258.15	17,836
3/13/2023	Briggs Morrison	Insider	Sell	52,854	$22.53	$1,190,800.62	17,836
2/15/2023	Peter Ordentlich	insider	Sell	25,000	$25.84	$646,000.00
2/6/2023	Briggs Morrison	Insider	Sell	52,854	$26.83	$1,418,072.82	17,836
2/6/2023	Michael A. Metzger	CEO	Sell	5,959	$27.64	$164,706.76	17,659
1/12/2023	Pierre Legault	Director	Sell	24,000	$26.74	$641,760.00	32,000

SEC Filings (Institutional Ownership Changes) for Syndax Pharmaceuticals (NASDAQ:SNDX)

Institutional Buying and Selling by Quarter

Syndax Pharmaceuticals Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/17/2025	Woodline Partners LP	1,550,520	$23.86M	0.1%	-18.1%	1.784%
11/17/2025	Zimmer Partners LP	383,100	$5.89M	0.1%	-36.8%	0.441%
11/17/2025	Velan Capital Investment Management LP	130,000	$2M	1.9%	N/A	0.150%
11/17/2025	Verition Fund Management LLC	17,179	$0.26M	0.0%	-86.3%	0.020%
11/17/2025	Scientech Research LLC	30,875	$0.48M	0.2%	N/A	0.036%
11/17/2025	Quarry LP	35,365	$0.54M	0.1%	-40.1%	0.041%
11/17/2025	Qube Research & Technologies Ltd	1,644,844	$25.31M	0.0%	-1.3%	1.892%
11/17/2025	Prelude Capital Management LLC	32,739	$0.50M	0.0%	-63.6%	0.038%
11/17/2025	Palo Alto Investors LP	654,930	$10.08M	1.9%	+47.4%	0.754%
11/17/2025	Parkman Healthcare Partners LLC	846,899	$13.03M	1.4%	-2.4%	0.974%
11/17/2025	Mariner LLC	23,440	$0.36M	0.0%	N/A	0.027%
11/17/2025	Millennium Management LLC	1,046,456	$16.10M	0.0%	-34.5%	1.204%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	46,841	$0.72M	0.0%	-11.4%	0.054%
11/17/2025	Larson Financial Group LLC	2,922	$45K	0.0%	+192.2%	0.003%
11/17/2025	Kingdon Capital Management L.L.C.	2,500,000	$38.46M	4.8%	+19.0%	2.876%
11/17/2025	Gotham Asset Management LLC	48,246	$0.74M	0.0%	N/A	0.056%
11/17/2025	Granahan Investment Management LLC	396,336	$6.10M	0.2%	-60.0%	0.456%
11/17/2025	Brevan Howard Capital Management LP	124,575	$1.92M	0.0%	+341.3%	0.143%
11/17/2025	Cinctive Capital Management LP	30,440	$0.47M	0.0%	N/A	0.035%
11/17/2025	Bank of America Corp DE	3,697,753	$56.89M	0.0%	-3.7%	4.254%
11/17/2025	Boothbay Fund Management LLC	261,933	$4.03M	0.1%	+103.3%	0.301%
11/17/2025	Algert Global LLC	930,766	$14.32M	0.2%	-8.9%	1.071%
11/17/2025	Alliancebernstein L.P.	126,649	$1.95M	0.0%	+7.6%	0.146%
11/17/2025	Ameriprise Financial Inc.	95,443	$1.47M	0.0%	-1.3%	0.110%
11/17/2025	Apis Capital Advisors LLC	638,000	$9.82M	2.2%	N/A	0.734%
11/14/2025	Creative Planning	17,970	$0.28M	0.0%	+16.4%	0.021%
11/14/2025	Schonfeld Strategic Advisors LLC	132,123	$2.03M	0.0%	-50.1%	0.152%
11/14/2025	SummitTX Capital L.P.	100,586	$1.55M	0.1%	-52.4%	0.116%
11/14/2025	Man Group plc	174,951	$2.69M	0.0%	-23.3%	0.201%
11/14/2025	California State Teachers Retirement System	78,287	$1.20M	0.0%	+8.7%	0.090%
11/14/2025	UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC	134,261	$2.07M	0.0%	-47.6%	0.154%
11/14/2025	Two Sigma Investments LP	712,659	$10.96M	0.0%	+28.0%	0.820%
11/14/2025	Concentric Capital Strategies LP	21,944	$0.34M	0.0%	N/A	0.025%
11/14/2025	Squarepoint Ops LLC	35,519	$0.55M	0.0%	-4.7%	0.041%
11/14/2025	Prosight Management LP	1,003,400	$15.44M	3.6%	-7.1%	1.154%
11/13/2025	Jump Financial LLC	132,701	$2.04M	0.0%	-65.2%	0.153%
11/13/2025	Sei Investments Co.	43,448	$0.67M	0.0%	+220.6%	0.050%
11/13/2025	Capital Fund Management S.A.	341,194	$5.25M	0.0%	+91.4%	0.393%
11/13/2025	BNP Paribas Financial Markets	599,871	$9.23M	0.0%	+20.0%	0.690%
11/13/2025	Franklin Resources Inc.	2,390,561	$36.78M	0.0%	+1.3%	2.750%
11/13/2025	Swiss National Bank	158,500	$2.44M	0.0%	-3.5%	0.182%
11/13/2025	WINTON GROUP Ltd	22,521	$0.35M	0.0%	N/A	0.026%
11/13/2025	Russell Investments Group Ltd.	79,538	$1.22M	0.0%	-37.0%	0.092%
11/13/2025	Schroder Investment Management Group	123,404	$1.92M	0.0%	+1.0%	0.142%
11/13/2025	Knott David M Jr	428,000	$6.59M	2.7%	+21.3%	0.492%
11/12/2025	Barclays PLC	348,061	$5.36M	0.0%	-9.1%	0.400%
11/12/2025	Dimensional Fund Advisors LP	121,467	$1.87M	0.0%	-75.1%	0.140%
11/12/2025	Rafferty Asset Management LLC	141,822	$2.18M	0.0%	+12.5%	0.163%
11/12/2025	Quantbot Technologies LP	3,471	$53K	0.0%	N/A	0.004%
11/12/2025	DNB Asset Management AS	23,294	$0.36M	0.0%	-20.7%	0.027%
11/12/2025	Intech Investment Management LLC	33,875	$0.52M	0.0%	-26.0%	0.039%
11/12/2025	Fox Run Management L.L.C.	35,656	$0.55M	0.1%	+94.2%	0.041%
11/10/2025	Ameritas Investment Partners Inc.	7,119	$0.11M	0.0%	-9.4%	0.008%
11/10/2025	China Universal Asset Management Co. Ltd.	15,099	$0.23M	0.0%	-12.6%	0.017%
11/7/2025	NEOS Investment Management LLC	110,066	$1.69M	0.0%	+27.5%	0.128%
11/7/2025	Vanguard Group Inc.	5,138,617	$79.06M	0.0%	+2.1%	5.965%
11/7/2025	JPMorgan Chase & Co.	253,850	$3.91M	0.0%	-7.0%	0.295%
11/7/2025	Aberdeen Group plc	372,792	$5.74M	0.0%	+22.9%	0.433%
11/6/2025	Rhumbline Advisers	131,669	$2.03M	0.0%	+2.3%	0.153%
11/6/2025	Profund Advisors LLC	30,817	$0.47M	0.0%	+15.7%	0.036%
11/6/2025	ProShare Advisors LLC	17,639	$0.27M	0.0%	-14.7%	0.020%
11/6/2025	Candriam S.C.A.	925,332	$14.24M	0.1%	+37.1%	1.074%
11/5/2025	Savant Capital LLC	20,878	$0.32M	0.0%	+50.4%	0.024%
11/5/2025	Post Resch Tallon Group Inc.	25,800	$0.40M	0.4%	N/A	0.030%
11/4/2025	Allianz Asset Management GmbH	15,200	$0.23M	0.0%	N/A	0.018%
11/4/2025	Keybank National Association OH	150,000	$2.31M	0.0%	N/A	0.174%
11/3/2025	AlphaQuest LLC	59,341	$0.91M	0.1%	+183.3%	0.069%
11/3/2025	Arizona State Retirement System	24,158	$0.37M	0.0%	-3.7%	0.028%
11/3/2025	Phoenix Financial Ltd.	31,740	$0.49M	0.0%	-57.7%	0.037%
10/31/2025	Sector Gamma AS	210,814	$3.24M	0.8%	N/A	0.245%
10/31/2025	Y Intercept Hong Kong Ltd	100,851	$1.55M	0.0%	-63.6%	0.117%
10/29/2025	Wealth Enhancement Advisory Services LLC	12,885	$0.21M	0.0%	N/A	0.015%
10/24/2025	Tema Etfs LLC	110,066	$1.69M	0.1%	+27.5%	0.128%
10/23/2025	SG Americas Securities LLC	45,426	$0.70M	0.0%	N/A	0.053%
10/22/2025	Hennion & Walsh Asset Management Inc.	54,698	$0.84M	0.0%	+69.9%	0.063%
10/20/2025	Allspring Global Investments Holdings LLC	16,107	$0.25M	0.0%	N/A	0.019%
10/20/2025	Simplify Asset Management Inc.	28,505	$0.44M	0.0%	+13.8%	0.033%
10/15/2025	CWM LLC	21,175	$0.33M	0.0%	+141.7%	0.025%
10/15/2025	Inspire Investing LLC	28,833	$0.44M	0.0%	-32.8%	0.033%
10/9/2025	Voya Investment Management LLC	83,207	$1.28M	0.0%	-8.4%	0.097%
10/7/2025	Assenagon Asset Management S.A.	1,784,139	$27.45M	0.0%	-12.5%	2.071%
8/18/2025	Hudson Bay Capital Management LP	443,300	$4.15M	0.0%	+77.3%	0.515%
8/15/2025	CANADA LIFE ASSURANCE Co	7,182	$67K	0.0%	-65.2%	0.008%
8/15/2025	Tower Research Capital LLC TRC	8,480	$79K	0.0%	+103.3%	0.010%
8/15/2025	Exome Asset Management LLC	308,298	$2.89M	1.5%	-8.6%	0.358%
8/15/2025	E Fund Management Co. Ltd.	14,033	$0.13M	0.0%	-12.5%	0.016%
8/15/2025	Soleus Capital Management L.P.	1,092,110	$10.23M	0.7%	+33.7%	1.268%
8/15/2025	Sofinnova Investments Inc.	1,524,440	$14.28M	0.9%	-33.0%	1.770%
8/15/2025	Rafferty Asset Management LLC	126,045	$1.18M	0.0%	-26.5%	0.146%
8/15/2025	Man Group plc	228,167	$2.14M	0.0%	+70.1%	0.265%
8/15/2025	Lazard Asset Management LLC	7,142	$66K	0.0%	N/A	0.008%
8/15/2025	Hudson Bay Capital Management LP	443,300	$4.15M	0.0%	+77.3%	0.515%
8/15/2025	Eventide Asset Management LLC	1,414,081	$13.24M	0.2%	+20.0%	1.642%
8/15/2025	Engineers Gate Manager LP	179,276	$1.68M	0.0%	+41.7%	0.208%
8/15/2025	BNP Paribas Financial Markets	499,903	$4.68M	0.0%	+130.4%	0.580%
8/15/2025	Boothbay Fund Management LLC	128,845	$1.21M	0.0%	N/A	0.150%
8/15/2025	Brevan Howard Capital Management LP	28,227	$0.26M	0.0%	-53.2%	0.033%
8/15/2025	Balyasny Asset Management L.P.	126,145	$1.18M	0.0%	-93.1%	0.146%
8/15/2025	Bank of America Corp DE	3,838,872	$35.95M	0.0%	+33.7%	4.457%
8/15/2025	Adage Capital Partners GP L.L.C.	1,432,440	$13.42M	0.0%	+126.8%	1.663%

Data available starting January 2016

Syndax Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops therapies for the treatment of cancer. Its lead product candidates are revumenib, a potent, selective, small molecule inhibitor of the menin-MLL binding interaction for the treatment of KMT2A rearranged, acute leukemias, and solid tumor; and SNDX-6352 or axatilimab, a monoclonal antibody that blocks the colony stimulating factor 1, or CSF-1 receptor for the treatment of patients with chronic graft versus host disease (cGVHD) and idiopathic pulmonary fibrosis (IPF). The company is also developing Entinostat. It has an agreement with Eddingpharm International Company Limited for licensing, development, and commercialization of Entinostat. Syndax Pharmaceuticals, Inc. was incorporated in 2005 and is headquartered in Waltham, Massachusetts.

Today's Range

Now: $19.74

$19.31

$20.03

50 Day Range

MA: $16.20

$13.11

$20.12

52 Week Range

Now: $19.74

$8.58

$20.20

Volume

1,489,110 shs

Average Volume

2,328,854 shs

Market Capitalization

$1.72 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.48

Who are the company insiders with the largest holdings of Syndax Pharmaceuticals?: Syndax Pharmaceuticals' top insider investors include:
Michael A Metzger (CEO)
Dennis Podlesak (Director)
Keith A Goldan (CFO)
Neil Gallagher (Insider)
Learn More about top insider investors at Syndax Pharmaceuticals.
Who are the major institutional investors of Syndax Pharmaceuticals?: Syndax Pharmaceuticals' top institutional investors include:
Vanguard Group Inc. — 5.97%
Bank of America Corp DE — 4.25%
Kingdon Capital Management L.L.C. — 2.88%
Franklin Resources Inc. — 2.75%
Assenagon Asset Management S.A. — 2.07%
Qube Research & Technologies Ltd — 1.89%
Learn More about top institutional investors of Syndax Pharmaceuticals stock.
Which major investors are selling Syndax Pharmaceuticals stock?: During the previous quarter, SNDX stock was sold by these institutional investors:
Caption Management LLC
Granahan Investment Management LLC
Millennium Management LLC
Dimensional Fund Advisors LP
Woodline Partners LP
Assenagon Asset Management S.A.
Jump Financial LLC
Zimmer Partners LP
During the previous year, company insiders that have sold Syndax Pharmaceuticals company stock include:
Michael A Metzger (CEO)
Dennis Podlesak (Director)
Keith A Goldan (CFO)
Neil Gallagher (Insider)
Learn More investors selling Syndax Pharmaceuticals stock.
Which major investors are buying Syndax Pharmaceuticals stock?: During the previous quarter, SNDX stock was bought by institutional investors including:
Apis Capital Advisors LLC
Kingdon Capital Management L.L.C.
Candriam S.C.A.
Sector Gamma AS
Palo Alto Investors LP
Capital Fund Management S.A.
Two Sigma Investments LP
Keybank National Association OH