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 |
|---|---|---|---|---|---|
| Bessemer Group Inc | 49 | $0 | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 100 | $0 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 37 | $0 | 0.00% | +28+311.1% | Added |
| Comerica Bank | 12 | $112 | 0.00% | −1,050−98.9% | Reduced |
| EverSource Wealth Advisors, LLC | 14 | $131 | 0.00% | −234−94.4% | Reduced |
| Farther Finance Advisors, LLC | 23 | $215 | 0.00% | −48−67.6% | Reduced |
| True Wealth Design, LLC | 25 | $235 | 0.00% | −72−74.2% | Reduced |
| GAMMA Investing LLC | 43 | $403 | 0.00% | −36−45.6% | Reduced |
| Smartleaf Asset Management LLC | 51 | $461 | 0.00% | −581−91.9% | Reduced |
| TD Private Client Wealth LLC | 54 | $506 | 0.00% | +54 | New |
| Rothschild Investment LLC | 55 | $515 | 0.00% | −75−57.7% | Reduced |
| Massmutual Trust Co FSB | 71 | $665 | 0.00% | +25+54.3% | Added |
| Signaturefd, LLC | 73 | $684 | 0.00% | −1,321−94.8% | Reduced |
| Parallel Advisors, LLC | 96 | $899 | 0.00% | −236−71.1% | Reduced |
| Brown Brothers Harriman & Co | 128 | $1.20K | 0.00% | +128 | New |
| IFP Advisors, Inc | 0 | $1.56K | 0.00% | 0 | Unchanged |
| Crowley Wealth Management, Inc. | 200 | $1.87K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 203 | $1.90K | 0.00% | +2+1.0% | Added |
| SRS Capital Advisors, Inc. | 207 | $1.94K | 0.00% | +207 | New |
| Washington Trust Advisors, Inc. | 209 | $1.96K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 231 | $2.16K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 240 | $2.25K | 0.00% | +206+605.9% | Added |
| Skopos Labs, Inc. | 260 | $2.44K | 0.00% | +249+2,263.6% | Added |
| Jones Financial Companies LLLP | 275 | $2.49K | 0.00% | +275 | New |
| Global Retirement Partners, LLC | 315 | $2.95K | 0.00% | +315 | New |
| Daiwa Securities Group Inc. | 314 | $3.00K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 345 | $3.23K | 0.00% | +261+310.7% | Added |
| Principal Securities, Inc. | 400 | $3.75K | 0.00% | +400 | New |
| The PNC Financial Services Group, Inc. | 504 | $4.72K | 0.00% | −1,640−76.5% | Reduced |
| Optiver Holding B.V. | 511 | $4.79K | 0.00% | +240+88.6% | Added |
| Versant Capital Management, Inc | 822 | $7.70K | 0.00% | +822 | New |
| Truvestments Capital LLC | 826 | $7.74K | 0.00% | 00.0% | Unchanged |
| 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 |
| Nisa Investment Advisors, LLC | 1,101 | $10.3K | 0.00% | +222+25.3% | Added |
| Caitong International Asset Management Co., Ltd | 1,277 | $12.0K | 0.01% | +1,068+511.0% | Added |
| Advisor Group Holdings, Inc. | 1,883 | $17.6K | 0.00% | −523−21.7% | Reduced |
| Walleye Trading LLC | 1,940 | $18.2K | 0.00% | +1,940 | New |
| GF Fund Management Co. Ltd. | 2,186 | $20.5K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,775 | $26.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 3,324 | $31.1K | 0.00% | +468+16.4% | Added |
| Point72 (DIFC) Ltd | 4,327 | $40.5K | 0.00% | +4,327 | New |
| US Bancorp | 4,378 | $41.0K | 0.00% | −677−13.4% | Reduced |
| KBC Group NV | 5,180 | $49.0K | 0.00% | 00.0% | Unchanged |
| Cape Investment Advisory, Inc. | 6,427 | $60.2K | 0.02% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 7,142 | $66.0K | 0.00% | +7,142 | New |
| Great West Life Assurance Co | 7,182 | $67.0K | 0.00% | −13,480−65.2% | Reduced |
| Ameritas Investment Partners, Inc. | 7,858 | $73.6K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 8,480 | $79.4K | 0.00% | +4,308+103.3% | Added |
| CWM, LLC | 8,761 | $82.0K | 0.00% | −14,613−62.5% | Reduced |
| Virtus Investment Advisers, Inc. | 8,813 | $82.5K | 0.03% | −3,379−27.7% | Reduced |
| 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 |
| Prudential Financial Inc | 10,350 | $96.9K | 0.00% | +10,350 | New |
| CIBC World Markets Corp | 10,499 | $98.3K | 0.00% | −7,734−42.4% | Reduced |
| Raymond James Financial Inc | 10,969 | $102.7K | 0.00% | +10,969 | New |
| XTX Topco Ltd | 11,959 | $112.0K | 0.00% | −51,767−81.2% | Reduced |
| Optimize Financial Inc | 12,141 | $113.7K | 0.07% | −86−0.7% | Reduced |
| Pictet Asset Management Holding SA | 12,356 | $115.7K | 0.00% | +12,356 | New |
| Guggenheim Capital LLC | 12,748 | $119.4K | 0.00% | +258+2.1% | Added |
| Atom Investors LP | 13,104 | $122.7K | 0.01% | −44,170−77.1% | Reduced |
| Ieq Capital, LLC | 13,160 | $123.2K | 0.00% | −46,050−77.8% | Reduced |
| SEI Investments Co | 13,554 | $126.9K | 0.00% | −11,419−45.7% | Reduced |
| Public Employees Retirement Association of Colorado | 13,746 | $129.0K | 0.00% | 00.0% | Unchanged |
| E Fund Management Co., Ltd. | 14,033 | $131.4K | 0.01% | −1,998−12.5% | Reduced |
| DRW Securities, LLC | 14,135 | $132.4K | 0.01% | +14,135 | New |
| Creative Planning | 15,444 | $144.6K | 0.00% | −26,082−62.8% | Reduced |
| Freestone Grove Partners LP | 15,457 | $144.8K | 0.00% | −1,507−8.9% | Reduced |
| KLP Kapitalforvaltning AS | 16,600 | $155.5K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 17,282 | $161.8K | 0.02% | +161+0.9% | Added |
| Gsa Capital Partners LLP | 17,430 | $163.0K | 0.01% | −69,854−80.0% | Reduced |
| Corton Capital Inc. | 17,856 | $167.2K | 0.19% | +17,856 | New |
| Police & Firemen's Retirement System of New Jersey | 17,872 | $167.4K | 0.00% | 00.0% | Unchanged |
| Fox Run Management, L.L.C. | 18,363 | $172.0K | 0.03% | +18,363 | New |
| State Board of Administration of Florida Retirement System | 18,968 | $177.6K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 19,921 | $186.0K | 0.01% | +18,264+1,102.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 20,541 | $192.4K | 0.00% | +7,281+54.9% | Added |
| ProShare Advisors LLC | 20,686 | $193.7K | 0.00% | −951−4.4% | Reduced |
| Quest Partners LLC | 20,947 | $196.2K | 0.02% | −18,370−46.7% | Reduced |
| Bryce Point Capital, LLC | 21,109 | $197.7K | 0.17% | +21,109 | New |
| Jefferies Financial Group Inc. | 23,000 | $215.4K | 0.00% | +23,000 | New |
| Teacher Retirement System of Texas | 23,132 | $216.6K | 0.00% | +2,458+11.9% | Added |
| Jacobs Levy Equity Management, Inc | 23,530 | $220.4K | 0.00% | +23,530 | New |
| Simplify Asset Management Inc. | 25,049 | $234.6K | 0.01% | −122,736−83.1% | Reduced |
| Arizona State Retirement System | 25,087 | $234.9K | 0.00% | +3,080+14.0% | Added |
| New York State Common Retirement Fund | 25,384 | $237.7K | 0.00% | 00.0% | Unchanged |
| Profund Advisors LLC | 26,639 | $249.5K | 0.01% | −8,842−24.9% | Reduced |
| DekaBank Deutsche Girozentrale | 28,300 | $251.0K | 0.00% | 00.0% | Unchanged |
| Nebula Research & Development LLC | 27,231 | $255.0K | 0.02% | −45,327−62.5% | Reduced |
| Brevan Howard Capital Management LP | 28,227 | $264.2K | 0.00% | −32,110−53.2% | Reduced |
| DnB Asset Management AS | 29,362 | $275.0K | 0.00% | +6,984+31.2% | Added |
| Hennion & Walsh Asset Management, Inc. | 32,185 | $301.4K | 0.01% | +32,185 | New |
| Wellington Management Group LLP | 34,085 | $319.2K | 0.00% | −1,877−5.2% | Reduced |
| Clearline Capital LP | 34,177 | $320.1K | 0.03% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 37,257 | $348.9K | 0.00% | +37,257 | New |
| Janus Henderson Group PLC | 39,335 | $368.4K | 0.00% | 00.0% | Unchanged |
| CWM Advisors, LLC | 42,923 | $402.0K | 0.04% | +15,025+53.9% | Added |
| Manufacturers Life Insurance Company, The | 44,149 | $413.5K | 0.00% | +2,479+5.9% | Added |
| Intech Investment Management LLC | 45,753 | $428.5K | 0.00% | −9,911−17.8% | Reduced |
| Campbell & CO Investment Adviser LLC | 46,829 | $438.6K | 0.03% | +46,829 | New |