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, Q2 2025
Institutional positions in Syndax Pharmaceuticals Inc as of Jun 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
- 217
- −1 vs. Q1 2025
- Shares held
- 101.7M
- +770.2K (+0.8%) vs. Q1 2025
- Total value
- $952.6M
- −$287.7M (−23.2%) vs. Q1 2025
- New holders
- 31
- 86 more added
- Sold out
- 32
- 66 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Voya Investment Management LLC | 90,855 | $850.9K | 0.00% | +44,666+96.7% | Added |
| UBS Oconnor LLC | 90,441 | $847.0K | 0.02% | +31,003+52.2% | Added |
| Prelude Capital Management, LLC | 89,833 | $841.3K | 0.08% | −1,884−2.1% | Reduced |
| Stifel Financial Corp | 89,102 | $834.4K | 0.00% | +14,750+19.8% | Added |
| NEOS Investment Management LLC | 86,301 | $808.2K | 0.01% | +65,132+307.7% | Added |
| Tema ETFs LLC | 86,301 | $808.2K | 0.21% | +65,132+307.7% | Added |
| Legal & General Group Plc | 84,575 | $792.0K | 0.00% | +3,937+4.9% | Added |
| Price T Rowe Associates Inc | 75,404 | $706.0K | 0.00% | +9,290+14.1% | Added |
| Phoenix Holdings Ltd. | 74,963 | $701.3K | 0.01% | +74,963 | New |
| California State Teachers Retirement System | 72,019 | $674.5K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 64,771 | $606.9K | 0.00% | −139,961−68.4% | Reduced |
| Sectoral Asset Management Inc | 63,300 | $592.8K | 0.39% | +63,300 | New |
| Quarry LP | 59,000 | $552.5K | 0.13% | +57,000+2,850.0% | Added |
| Lion Point Capital, LP | 55,000 | $515.1K | 3.50% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 53,056 | $496.9K | 0.00% | −13,932−20.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 52,845 | $492.9K | 0.00% | −3,997−7.0% | Reduced |
| MetLife Investment Management | 49,732 | $465.7K | 0.00% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 46,829 | $438.6K | 0.03% | +46,829 | New |
| Intech Investment Management LLC | 45,753 | $428.5K | 0.00% | −9,911−17.8% | Reduced |
| Manufacturers Life Insurance Company, The | 44,149 | $413.5K | 0.00% | +2,479+5.9% | Added |
| CWM Advisors, LLC | 42,923 | $402.0K | 0.04% | +15,025+53.9% | Added |
| Janus Henderson Group PLC | 39,335 | $368.4K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 37,257 | $348.9K | 0.00% | +37,257 | New |
| Clearline Capital LP | 34,177 | $320.1K | 0.03% | 00.0% | Unchanged |
| Wellington Management Group LLP | 34,085 | $319.2K | 0.00% | −1,877−5.2% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 32,185 | $301.4K | 0.01% | +32,185 | New |
| DnB Asset Management AS | 29,362 | $275.0K | 0.00% | +6,984+31.2% | Added |
| Brevan Howard Capital Management LP | 28,227 | $264.2K | 0.00% | −32,110−53.2% | Reduced |
| Nebula Research & Development LLC | 27,231 | $255.0K | 0.02% | −45,327−62.5% | Reduced |
| DekaBank Deutsche Girozentrale | 28,300 | $251.0K | 0.00% | 00.0% | Unchanged |
| Profund Advisors LLC | 26,639 | $249.5K | 0.01% | −8,842−24.9% | Reduced |
| New York State Common Retirement Fund | 25,384 | $237.7K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 25,087 | $234.9K | 0.00% | +3,080+14.0% | Added |
| Simplify Asset Management Inc. | 25,049 | $234.6K | 0.01% | −122,736−83.1% | Reduced |
| Jacobs Levy Equity Management, Inc | 23,530 | $220.4K | 0.00% | +23,530 | New |
| Teacher Retirement System of Texas | 23,132 | $216.6K | 0.00% | +2,458+11.9% | Added |
| Jefferies Financial Group Inc. | 23,000 | $215.4K | 0.00% | +23,000 | New |
| Bryce Point Capital, LLC | 21,109 | $197.7K | 0.17% | +21,109 | New |
| Quest Partners LLC | 20,947 | $196.2K | 0.02% | −18,370−46.7% | Reduced |
| ProShare Advisors LLC | 20,686 | $193.7K | 0.00% | −951−4.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 20,541 | $192.4K | 0.00% | +7,281+54.9% | Added |
| Simplex Trading, LLC | 19,921 | $186.0K | 0.01% | +18,264+1,102.2% | Added |
| State Board of Administration of Florida Retirement System | 18,968 | $177.6K | 0.00% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 18,363 | $172.0K | 0.03% | +18,363 | New |
| Police & Firemen's Retirement System of New Jersey | 17,872 | $167.4K | 0.00% | 00.0% | Unchanged |
| Corton Capital Inc. | 17,856 | $167.2K | 0.19% | +17,856 | New |
| Gsa Capital Partners LLP | 17,430 | $163.0K | 0.01% | −69,854−80.0% | Reduced |
| China Universal Asset Management Co., Ltd. | 17,282 | $161.8K | 0.02% | +161+0.9% | Added |
| KLP Kapitalforvaltning AS | 16,600 | $155.5K | 0.00% | 00.0% | Unchanged |
| Freestone Grove Partners LP | 15,457 | $144.8K | 0.00% | −1,507−8.9% | Reduced |
| Creative Planning | 15,444 | $144.6K | 0.00% | −26,082−62.8% | Reduced |
| DRW Securities, LLC | 14,135 | $132.4K | 0.01% | +14,135 | New |
| E Fund Management Co., Ltd. | 14,033 | $131.4K | 0.01% | −1,998−12.5% | Reduced |
| Public Employees Retirement Association of Colorado | 13,746 | $129.0K | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 13,554 | $126.9K | 0.00% | −11,419−45.7% | Reduced |
| Ieq Capital, LLC | 13,160 | $123.2K | 0.00% | −46,050−77.8% | Reduced |
| Atom Investors LP | 13,104 | $122.7K | 0.01% | −44,170−77.1% | Reduced |
| Guggenheim Capital LLC | 12,748 | $119.4K | 0.00% | +258+2.1% | Added |
| Pictet Asset Management Holding SA | 12,356 | $115.7K | 0.00% | +12,356 | New |
| Optimize Financial Inc | 12,141 | $113.7K | 0.07% | −86−0.7% | Reduced |
| XTX Topco Ltd | 11,959 | $112.0K | 0.00% | −51,767−81.2% | Reduced |
| Raymond James Financial Inc | 10,969 | $102.7K | 0.00% | +10,969 | New |
| CIBC World Markets Corp | 10,499 | $98.3K | 0.00% | −7,734−42.4% | Reduced |
| Prudential Financial Inc | 10,350 | $96.9K | 0.00% | +10,350 | New |
| Farallon Capital Management, L.L.C. | 10,000 | $93.7K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 10,000 | $93.7K | 0.02% | +10,000 | New |
| Virtus Investment Advisers, Inc. | 8,813 | $82.5K | 0.03% | −3,379−27.7% | Reduced |
| CWM, LLC | 8,761 | $82.0K | 0.00% | −14,613−62.5% | Reduced |
| Tower Research Capital LLC (TRC) | 8,480 | $79.4K | 0.00% | +4,308+103.3% | Added |
| Ameritas Investment Partners, Inc. | 7,858 | $73.6K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 7,182 | $67.0K | 0.00% | −13,480−65.2% | Reduced |
| Lazard Asset Management LLC | 7,142 | $66.0K | 0.00% | +7,142 | New |
| Cape Investment Advisory, Inc. | 6,427 | $60.2K | 0.02% | 00.0% | Unchanged |
| KBC Group NV | 5,180 | $49.0K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 4,378 | $41.0K | 0.00% | −677−13.4% | Reduced |
| Point72 (DIFC) Ltd | 4,327 | $40.5K | 0.00% | +4,327 | New |
| Mirae Asset Global Investments Co., Ltd. | 3,324 | $31.1K | 0.00% | +468+16.4% | Added |
| Amalgamated Bank | 2,775 | $26.0K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 2,186 | $20.5K | 0.00% | 00.0% | Unchanged |
| Walleye Trading LLC | 1,940 | $18.2K | 0.00% | +1,940 | New |
| Advisor Group Holdings, Inc. | 1,883 | $17.6K | 0.00% | −523−21.7% | Reduced |
| Caitong International Asset Management Co., Ltd | 1,277 | $12.0K | 0.01% | +1,068+511.0% | Added |
| Nisa Investment Advisors, LLC | 1,101 | $10.3K | 0.00% | +222+25.3% | Added |
| Larson Financial Group LLC | 1,000 | $9.37K | 0.00% | −24−2.3% | Reduced |
| MAI Capital Management | 1,000 | $9.37K | 0.00% | 00.0% | Unchanged |
| Truvestments Capital LLC | 826 | $7.74K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 822 | $7.70K | 0.00% | +822 | New |
| Optiver Holding B.V. | 511 | $4.79K | 0.00% | +240+88.6% | Added |
| The PNC Financial Services Group, Inc. | 504 | $4.72K | 0.00% | −1,640−76.5% | Reduced |
| Principal Securities, Inc. | 400 | $3.75K | 0.00% | +400 | New |
| Sterling Capital Management LLC | 345 | $3.23K | 0.00% | +261+310.7% | Added |
| Daiwa Securities Group Inc. | 314 | $3.00K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 315 | $2.95K | 0.00% | +315 | New |
| Jones Financial Companies LLLP | 275 | $2.49K | 0.00% | +275 | New |
| Skopos Labs, Inc. | 260 | $2.44K | 0.00% | +249+2,263.6% | Added |
| Allworth Financial LP | 240 | $2.25K | 0.00% | +206+605.9% | Added |
| Steward Partners Investment Advisory, LLC | 231 | $2.16K | 0.00% | 00.0% | Unchanged |
| Washington Trust Advisors, Inc. | 209 | $1.96K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 207 | $1.94K | 0.00% | +207 | New |
| SBI Securities Co., Ltd. | 203 | $1.90K | 0.00% | +2+1.0% | Added |