Syndax Pharmaceuticals Inc
SNDX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001395937
In the last 90 days, Syndax Pharmaceuticals Inc insiders filed 0 open-market purchases and 1 sale; 242 institutions reported holding it in 13F filings for Q2 2026, worth $2.36B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Syndax Pharmaceuticals Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 227
- +12 vs. Q2 2025
- Shares held
- 101.1M
- −592.2K (−0.6%) vs. Q2 2025
- Total value
- $1.56B
- +$603.3M (+63.3%) vs. Q2 2025
- New holders
- 40
- 82 more added
- Sold out
- 28
- 72 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SNDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 242 | $2.36B |
| Q1 2026 | 247 | $2.32B |
| Q4 2025 | 230 | $2.10B |
| Q3 2025 | 227 | $1.56B |
| Q2 2025 | 217 | $952.6M |
| Q1 2025 | 219 | $1.24B |
| Q4 2024 | 216 | $1.30B |
| Q3 2024 | 210 | $1.71B |
| Q2 2024 | 196 | $1.79B |
| Q1 2024 | 189 | $2.15B |
| Q4 2023 | 177 | $1.92B |
| Q3 2023 | 175 | $1.03B |
| Q2 2023 | 166 | $1.48B |
| Q1 2023 | 163 | $1.54B |
| Q4 2022 | 160 | $1.82B |
| Q3 2022 | 139 | $1.44B |
| Q2 2022 | 121 | $1.06B |
| Q1 2022 | 136 | $948.4M |
| Q4 2021 | 132 | $1.15B |
| Q3 2021 | 123 | $938.0M |
| Q2 2021 | 115 | $861.9M |
| Q1 2021 | 130 | $1.08B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ExodusPoint Capital Management, LP | 72,464 | $1.11M | 0.02% | +72,464 | New |
| Quest Partners LLC | 59,341 | $913.0K | 0.06% | +38,394+183.3% | Added |
| HSBC Holdings PLC | 56,524 | $884.0K | 0.00% | −50,263−47.1% | Reduced |
| Wells Fargo & Company | 56,916 | $875.7K | 0.00% | −97,490−63.1% | Reduced |
| Los Angeles Capital Management LLC | 55,214 | $849.5K | 0.00% | +55,214 | New |
| Ieq Capital, LLC | 55,204 | $849.3K | 0.00% | +42,044+319.5% | Added |
| Lion Point Capital, LP | 55,000 | $846.2K | 4.81% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 54,698 | $841.5K | 0.03% | +22,513+69.9% | Added |
| State of Wisconsin Investment Board | 50,330 | $774.3K | 0.00% | −90,783−64.3% | Reduced |
| Tudor Investment Corp Et Al | 50,184 | $772.1K | 0.01% | −2,872−5.4% | Reduced |
| MetLife Investment Management | 49,732 | $765.1K | 0.00% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 48,246 | $742.3K | 0.00% | +48,246 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 46,841 | $721.9K | 0.00% | −6,004−11.4% | Reduced |
| SG Americas Securities, LLC | 45,426 | $699.0K | 0.00% | +45,426 | New |
| Twinbeech Capital LP | 44,294 | $681.5K | 0.03% | −68,500−60.7% | Reduced |
| Point72 Hong Kong Ltd | 43,809 | $674.0K | 0.03% | +43,809 | New |
| SEI Investments Co | 43,448 | $668.4K | 0.00% | +29,894+220.6% | Added |
| Janus Henderson Group PLC | 39,335 | $605.2K | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 38,226 | $588.1K | 0.00% | +4,141+12.1% | Added |
| Stonepine Capital Management, LLC | 37,200 | $572.3K | 0.47% | −55,700−60.0% | Reduced |
| Fox Run Management, L.L.C. | 35,656 | $548.6K | 0.09% | +17,293+94.2% | Added |
| Squarepoint Ops LLC | 35,519 | $546.5K | 0.00% | −1,738−4.7% | Reduced |
| Quarry LP | 35,365 | $544.1K | 0.13% | −23,635−40.1% | Reduced |
| Susquehanna International Group, LLP | 34,750 | $534.6K | 0.00% | −336,713−90.6% | Reduced |
| Clearline Capital LP | 34,177 | $525.8K | 0.05% | 00.0% | Unchanged |
| Intech Investment Management LLC | 33,875 | $521.2K | 0.00% | −11,878−26.0% | Reduced |
| Prelude Capital Management, LLC | 32,739 | $503.7K | 0.04% | −57,094−63.6% | Reduced |
| Quadrature Capital Ltd | 32,360 | $497.7K | 0.01% | +32,360 | New |
| Phoenix Holdings Ltd. | 31,740 | $488.6K | 0.01% | −43,223−57.7% | Reduced |
| Scientech Research LLC | 30,875 | $475.0K | 0.17% | +30,875 | New |
| Profund Advisors LLC | 30,817 | $474.1K | 0.02% | +4,178+15.7% | Added |
| Cinctive Capital Management LP | 30,440 | $468.3K | 0.02% | +30,440 | New |
| XTX Topco Ltd | 30,393 | $467.6K | 0.02% | +18,434+154.1% | Added |
| CWM Advisors, LLC | 28,833 | $443.6K | 0.04% | −14,090−32.8% | Reduced |
| Manufacturers Life Insurance Company, The | 28,764 | $442.5K | 0.00% | −15,385−34.8% | Reduced |
| Simplify Asset Management Inc. | 28,505 | $438.5K | 0.01% | +3,456+13.8% | Added |
| DekaBank Deutsche Girozentrale | 28,300 | $429.0K | 0.00% | 00.0% | Unchanged |
| Cerity Partners LLC | 26,774 | $411.9K | 0.00% | +26,774 | New |
| Post Resch Tallon Group Inc. | 25,800 | $396.9K | 0.35% | +25,800 | New |
| New York State Common Retirement Fund | 25,384 | $390.5K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 24,158 | $371.7K | 0.00% | −929−3.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 23,968 | $368.7K | 0.00% | +6,096+34.1% | Added |
| Mariner, LLC | 23,440 | $360.6K | 0.00% | +23,440 | New |
| DnB Asset Management AS | 23,294 | $358.4K | 0.00% | −6,068−20.7% | Reduced |
| Winton Group Ltd | 22,521 | $346.5K | 0.01% | +22,521 | New |
| Concentric Capital Strategies, LP | 21,944 | $337.6K | 0.02% | +21,944 | New |
| Bridgefront Capital, LLC | 21,848 | $336.1K | 0.10% | +21,848 | New |
| CWM, LLC | 21,175 | $326.0K | 0.00% | +12,414+141.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 20,541 | $316.0K | 0.00% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 20,037 | $308.3K | 0.00% | −3,095−13.4% | Reduced |
| State Board of Administration of Florida Retirement System | 18,968 | $291.8K | 0.00% | 00.0% | Unchanged |
| Creative Planning | 17,970 | $276.5K | 0.00% | +2,526+16.4% | Added |
| ProShare Advisors LLC | 17,639 | $271.4K | 0.00% | −3,047−14.7% | Reduced |
| HighTower Advisors, LLC | 17,423 | $268.1K | 0.00% | +17,423 | New |
| Verition Fund Management LLC | 17,179 | $264.3K | 0.00% | −108,166−86.3% | Reduced |
| Gsa Capital Partners LLP | 16,908 | $260.0K | 0.02% | −522−3.0% | Reduced |
| Point72 (DIFC) Ltd | 16,791 | $258.3K | 0.02% | +12,464+288.1% | Added |
| KLP Kapitalforvaltning AS | 16,600 | $255.4K | 0.00% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 16,107 | $252.6K | 0.00% | +16,107 | New |
| Corton Capital Inc. | 16,267 | $250.3K | 0.62% | −1,589−8.9% | Reduced |
| Allianz Asset Management GmbH | 15,200 | $233.9K | 0.00% | +15,200 | New |
| China Universal Asset Management Co., Ltd. | 15,099 | $232.3K | 0.02% | −2,183−12.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 12,885 | $212.0K | 0.00% | +12,885 | New |
| Public Employees Retirement Association of Colorado | 13,746 | $211.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 13,240 | $203.7K | 0.01% | +4,760+56.1% | Added |
| Pictet Asset Management Holding SA | 12,356 | $190.1K | 0.00% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 12,143 | $186.9K | 0.00% | −605−4.7% | Reduced |
| Citigroup Inc | 11,670 | $179.5K | 0.00% | −100,082−89.6% | Reduced |
| Raymond James Financial Inc | 10,969 | $168.8K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 10,906 | $168.0K | 0.00% | +10,906 | New |
| Virtus Investment Advisers, Inc. | 10,664 | $164.1K | 0.05% | +1,851+21.0% | Added |
| Prudential Financial Inc | 10,395 | $159.9K | 0.00% | +45+0.4% | Added |
| Pallas Capital Advisors LLC | 10,110 | $155.5K | 0.01% | +10,110 | New |
| Farallon Capital Management, L.L.C. | 10,000 | $153.8K | 0.00% | 00.0% | Unchanged |
| Jefferies Financial Group Inc. | 9,000 | $138.5K | 0.00% | −14,000−60.9% | Reduced |
| Great West Life Assurance Co | 7,182 | $112.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 7,119 | $109.5K | 0.00% | −739−9.4% | Reduced |
| Cape Investment Advisory, Inc. | 6,441 | $99.1K | 0.10% | +14+0.2% | Added |
| KBC Group NV | 5,180 | $80.0K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 5,101 | $78.5K | 0.00% | −155,817−96.8% | Reduced |
| SRS Capital Advisors, Inc. | 4,897 | $75.3K | 0.00% | +4,690+2,265.7% | Added |
| US Bancorp | 4,521 | $69.6K | 0.00% | +143+3.3% | Added |
| Quantbot Technologies LP | 3,471 | $53.4K | 0.00% | +3,471 | New |
| Mirae Asset Global Investments Co., Ltd. | 3,330 | $51.2K | 0.00% | +6+0.2% | Added |
| Larson Financial Group LLC | 2,922 | $45.0K | 0.00% | +1,922+192.2% | Added |
| Amalgamated Bank | 2,775 | $43.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 2,614 | $40.6K | 0.00% | +731+38.8% | Added |
| The PNC Financial Services Group, Inc. | 2,138 | $32.9K | 0.00% | +1,634+324.2% | Added |
| GF Fund Management Co. Ltd. | 1,853 | $28.5K | 0.00% | −333−15.2% | Reduced |
| Acadian Asset Management LLC | 1,692 | $26.0K | 0.00% | +1,692 | New |
| Nisa Investment Advisors, LLC | 1,112 | $17.1K | 0.00% | +11+1.0% | Added |
| MAI Capital Management | 1,000 | $15.4K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 923 | $14.2K | 0.00% | +923 | New |
| Versant Capital Management, Inc | 844 | $13.0K | 0.00% | +22+2.7% | Added |
| Allworth Financial LP | 745 | $11.5K | 0.00% | +505+210.4% | Added |
| Optiver Holding B.V. | 719 | $11.1K | 0.00% | +208+40.7% | Added |
| Comerica Bank | 719 | $11.1K | 0.00% | +707+5,891.7% | Added |
| Clear Street Markets LLC | 688 | $10.6K | 0.00% | +688 | New |
| EverSource Wealth Advisors, LLC | 613 | $9.43K | 0.00% | +599+4,278.6% | Added |
| Sterling Capital Management LLC | 586 | $9.02K | 0.00% | +241+69.9% | Added |