Go Pro

Syndax Pharmaceuticals (SNDX) Institutional Ownership

Syndax Pharmaceuticals logo
$19.65 -0.10 (-0.51%)
As of 08/21/2026 04:00 PM Eastern

Institutional Ownership Changes (13F Filings) for Syndax Pharmaceuticals (NASDAQ:SNDX)

Number of
Institutional Buyers
(last 12 months)
124
Total
Institutional Inflows
(last 12 months)
$703.64M
Number of
Institutional Sellers
(last 12 months)
67
Total
Institutional Outflows
(last 12 months)
$184.25M
Get SNDX Insider Trade Alerts

Want to know when executives and insiders are buying or selling Syndax Pharmaceuticals stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Chart & View Institutional Buying and Selling Data

SNDX Institutional Buying and Selling by Quarter

Syndax Pharmaceuticals Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/21/2026 Pale Fire Capital SE125,550$2.75M0.1%-55.9%0.142%
8/21/2026 Nykredit A S3,279$72K0.0%N/A0.004%
8/20/2026 Headlands Technologies LLC56,227$1.23M0.1%+121.4%0.063%
8/20/2026 Alyeska Investment Group L.P.308,507$6.74M0.0%N/A0.348%
8/20/2026 Wedbush Securities Inc.12,705$278K0.0%+40.3%0.014%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC161,323$3.53M0.0%+7.7%0.182%
8/19/2026 Hsbc Holdings PLC20,539$457K0.0%-12.5%0.023%
8/19/2026 Wellington Management Group LLP124,241$2.72M0.0%+0.5%0.140%
8/18/2026 Palo Alto Investors LP864,986$18.91B2.6%N/A0.976%
8/17/2026 Seven Fleet Capital Management LP77,930$1.65M0.3%N/A0.088%
8/17/2026 Bank of America Corp DE4,045,094$88.43M0.0%N/A4.565%
8/15/2026 Man Group plc213,703$4.67M0.0%N/A0.241%
8/15/2026 Trails Edge Capital Partners LP1,110,000$24.26B3.9%N/A1.253%
8/15/2026 Jupiter Topco LLC39,335$860K0.0%N/A0.044%
8/15/2026 Elmind Capital LP1,855,000$40.55B10.2%N/A2.093%
8/14/2026 Hsbc Holdings PLC20,539$457K0.0%N/A0.023%
8/14/2026 Parkman Healthcare Partners LLC877,256$19.18M2.0%N/A0.990%
8/14/2026 Legal & General Group Plc65,483$1.43M0.0%N/A0.074%
8/14/2026 The Manufacturers Life Insurance Company 44,305$969K0.0%N/A0.050%
8/14/2026 Algert Global LLC1,051,465$22.99M0.3%+13.2%1.187%
8/13/2026 Connor Clark & Lunn Investment Management Ltd.40,891$894K0.0%N/A0.046%
8/12/2026 Ieq Capital LLC54,835$1.20M0.0%N/A0.062%
8/11/2026 Allworth Financial LP1,169$26K0.0%N/A0.001%
8/11/2026 E Fund Management Co. Ltd.13,788$301K0.0%N/A0.016%
8/7/2026 BlackRock Inc.9,020,006$197.18M0.0%N/A10.179%
8/7/2026 Pallas Capital Advisors LLC9,460$207K0.0%N/A0.011%
8/7/2026 Deutsche Bank AG95,315$2.08M0.0%N/A0.108%
8/6/2026 Bank of New York Mellon Corp1,040,079$22.74M0.0%N/A1.174%
8/6/2026 GSA Capital Partners LLP62,775$1.37M0.1%N/A0.071%
7/10/2026 Tema ETFs LLC72,212$1.58M0.1%+23.8%0.081%
7/9/2026 Hennion & Walsh Asset Management Inc.342,883$7.50M0.2%+59.6%0.387%
5/19/2026 Bank of America Corp DE4,249,836$99.28M0.0%-9.8%4.796%
5/18/2026 ADAR1 Capital Management LLC17,500$409K0.0%+45.8%0.020%
5/18/2026California State Teachers Retirement System103,009$2.41M0.0%+31.7%0.116%
5/18/2026 Royal Bank of Canada23,381$546K0.0%-7.7%0.026%
5/18/2026 Eversept Partners LP2,885,622$67.41M3.6%-12.9%3.257%
5/16/2026 The Manufacturers Life Insurance Company39,904$932K0.0%+56.7%0.045%
5/16/2026 Quantinno Capital Management LP22,576$527K0.0%+11.0%0.025%
5/16/2026 SummitTX Capital L.P.66,340$1.55M0.0%+69.6%0.075%
5/16/2026 Orbimed Advisors LLC962,300$22.48M0.4%N/A1.086%
ALERT: Drop these 5 stocks before the market opens tomorrow! (Ad)

The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings research points to the first half of 2026 as a particularly rough stretch for certain holdings. Some of America's most popular stocks could take serious damage as a radical market shift plays out. Analysts at Weiss Ratings have identified five names you may want to remove from your portfolio before this unfolds. If any of these are in your portfolio, now is the time to review your positions.tc pixel

5/15/2026 Granahan Investment Management LLC306,321$7.16M0.3%-16.5%0.346%
5/14/2026 Healthcare of Ontario Pension Plan Trust Fund331,665$7.75M0.0%+141.0%0.374%
5/14/2026 Renaissance Technologies LLC498,200$11.64M0.0%-8.6%0.562%
5/14/2026 Knott David M Jr422,000$9.86M5.8%+1.7%0.476%
5/14/2026 Sei Investments Co.217,600$5.08M0.0%+36.3%0.246%
5/7/2026 KBC Group NV3,062$72K0.0%-40.9%0.003%
5/6/2026 Allspring Global Investments Holdings LLC19,564$467K0.0%+11.4%0.022%
5/5/2026 Bank of New York Mellon Corp1,004,498$23.47M0.0%-8.2%1.139%
5/4/2026 Bleakley Financial Group LLC12,488$292K0.0%N/A0.014%
5/1/2026 Torray Investment Partners LLC104,868$2.45M0.4%+7.2%0.119%
4/30/2026 Hsbc Holdings PLC23,461$556K0.0%+3.2%0.027%
4/23/2026 Yelin Lapidot Holdings Management Ltd.96,297$2.25M0.5%-11.1%0.109%
4/16/2026 SG Americas Securities LLC38,548$900K0.0%-70.2%0.044%
4/16/2026 Diversified Trust Co13,660$319K0.0%+23.0%0.015%
3/20/2026 Hsbc Holdings PLC22,731$482K0.0%-59.8%0.026%
2/19/2026 Invesco Ltd.160,525$3.37M0.0%+20.6%0.185%
2/18/2026 Mercer Global Advisors Inc. ADV17,805$374K0.0%N/A0.020%
2/18/2026 XTX Topco Ltd18,476$388K0.0%-39.2%0.021%
2/18/2026 Virtus Investment Advisers LLC33,549$705K0.2%+214.6%0.039%
2/18/2026 Wellington Management Group LLP35,630$749K0.0%-6.8%0.041%
2/18/2026 SummitTX Capital L.P.39,127$822K0.0%-61.1%0.045%
2/18/2026 Twinbeech Capital LP52,900$1.11M0.1%+19.4%0.061%
2/18/2026 Sphera Funds Management LTD.762,563$16.02M3.0%+96.7%0.877%
2/18/2026 Quadrature Capital Ltd14,886$313K0.0%-54.0%0.017%
2/18/2026 Man Group plc44,638$938K0.0%-74.5%0.051%
2/18/2026 Inspire Investing LLC22,142$465K0.0%-23.2%0.025%
2/18/2026 Ishara Investments LP100,000$2.10M2.4%N/A0.115%
2/18/2026 Elmind Capital LP1,855,000$38.97M11.5%N/A2.134%
2/18/2026 Engineers Gate Manager LP26,265$552K0.0%-85.4%0.030%
2/18/2026 Eversept Partners LP3,314,408$69.64M3.5%-4.4%3.813%
2/18/2026 Catalio Capital Management LP1,196,807$25.15M4.7%-25.9%1.377%
2/18/2026 Clearline Capital LP43,413$912K0.0%+27.0%0.050%
2/18/2026 Apis Capital Advisors LLC724,000$15.21M2.7%+13.5%0.833%
2/17/2026 Guggenheim Capital LLC14,538$305K0.0%+19.7%0.017%
2/17/2026 ADAR1 Capital Management LLC12,000$252K0.0%N/A0.014%
2/17/2026 Schonfeld Strategic Advisors LLC13,100$275K0.0%-90.1%0.015%
2/17/2026 AQR Capital Management LLC925,974$19.46M0.0%+65.9%1.065%
2/17/2026 Cetera Investment Advisers23,116$486K0.0%N/A0.027%
2/17/2026 Lazard Asset Management LLC14,140$297K0.0%N/A0.016%
2/17/2026 MPM Bioimpact LLC1,337,702$28.11M3.2%-2.8%1.539%
2/17/2026 Trexquant Investment LP87,514$1.84M0.0%N/A0.101%
2/17/2026 Jump Financial LLC163,915$3.44M0.0%+23.5%0.189%
2/17/2026 Price T Rowe Associates Inc. MD94,829$1.99M0.0%+4.1%0.109%
2/17/2026 Integral Health Asset Management LLC200,000$4.20M0.2%N/A0.230%
2/17/2026 Russell Investments Group Ltd.89,639$1.88M0.0%+12.7%0.103%
2/17/2026 Atom Investors LP141,666$2.98M0.2%N/A0.163%
2/17/2026 Granahan Investment Management LLC366,793$7.71M0.3%-7.5%0.422%
2/17/2026 State of Wisconsin Investment Board40,761$856K0.0%-19.0%0.047%
2/17/2026 ExodusPoint Capital Management LP554,761$11.66M0.1%+665.6%0.638%
2/17/2026 Royal Bank of Canada25,340$532K0.0%-88.9%0.029%
Porter flew 3,300 miles to investigate this system (Ad)

Porter Stansberry flew the Porter and Co. team 3,300 miles to Dublin to investigate a 17-year investing experiment called Project Prophet - and documented everything on film. Rooted in the laws of physics, this quantitative approach challenges conventional wealth-building wisdom. With 17 years of verified data behind it, Porter calls it unlike anything he has seen in nearly 30 years in the business.tc pixel

Watch the full investigation and decide for yourself
2/16/2026 Squarepoint Ops LLC19,814$416K0.0%-44.2%0.023%
2/16/2026 Verition Fund Management LLC18,460$388K0.0%+7.5%0.021%
2/16/2026 Panagora Asset Management Inc.125,099$2.63M0.0%-19.5%0.144%
2/16/2026 Mariner LLC54,987$1.16M0.0%+134.6%0.063%
2/16/2026 Healthcare of Ontario Pension Plan Trust Fund137,629$2.89M0.0%N/A0.158%
2/16/2026 Eventide Asset Management LLC1,238,196$26.01M0.4%+25.3%1.425%
2/16/2026 Entropy Technologies LP15,064$316K0.0%N/A0.017%
2/16/2026 Barclays PLC314,672$6.61M0.0%-9.6%0.362%
2/13/2026 Prosight Management LP665,000$13.97M2.9%-33.7%0.765%
2/13/2026 The Manufacturers Life Insurance Company 25,461$535K0.0%-11.5%0.029%


SNDX Institutional Ownership - Frequently Asked Questions

During the previous two years, 240 institutional investors and hedge funds held shares of Syndax Pharmaceuticals. The most heavily invested institutionals were Elmind Capital LP ($40.55B), Trails Edge Capital Partners LP ($24.26B), Palo Alto Investors LP ($18.91B), BlackRock Inc. ($197.18M), Vanguard Group Inc. ($130.90M), Goldman Sachs Group Inc. ($119.66M), and State Street Corp ($96.57M).Learn more on Syndax Pharmaceuticals' institutional investors.

Of the 201 institutional investors that purchased Syndax Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($9.02M), Bank of America Corp DE ($5.01M), Elmind Capital LP ($3.71M), Soleus Capital Management L.P. ($1.91M), Assenagon Asset Management S.A. ($1.64M), Eventide Asset Management LLC ($1.27M), and Vanguard Group Inc. ($1.20M).

Institutional investors have bought a total of 33,445,874 shares in the last 24 months. This purchase volume represents approximately $703.64M in transactions.

Of the 67 institutional investors that sold Syndax Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Assenagon Asset Management S.A. ($2.00M), Granahan Investment Management LLC ($685.07K), Bank of America Corp DE ($602.03K), Eversept Partners LP ($581.69K), Millennium Management LLC ($552.16K), Dimensional Fund Advisors LP ($459.34K), and Catalio Capital Management LP ($417.91K).

Institutional investors have sold a total of 9,736,594 shares in the last 24 months. This volume of shares sold represents approximately $184.25M in transactions.



Institutional ownership data for NASDAQ:SNDX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/21/2026. New 13F filings are added each quarter as they're published.
From Our Partners