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 2026
Institutional positions in Syndax Pharmaceuticals Inc as of Jun 30, 2026. 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
- 242
- −2 vs. Q1 2026
- Shares held
- 108.1M
- +8.75M (+8.8%) vs. Q1 2026
- Total value
- $2.36B
- +$43.4M (+1.9%) vs. Q1 2026
- New holders
- 37
- 95 more added
- Sold out
- 39
- 77 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State of New Jersey Common Pension Fund D | 27,093 | $592.3K | 0.00% | −875−3.1% | Reduced |
| Twinbeech Capital LP | 28,077 | $613.8K | 0.11% | −61,929−68.8% | Reduced |
| Quantinno Capital Management LP | 30,440 | $665.4K | 0.00% | +7,864+34.8% | Added |
| Royal Bank of Canada | 30,555 | $667.0K | 0.00% | +7,174+30.7% | Added |
| CWM Advisors, LLC | 30,965 | $676.9K | 0.03% | +8,934+40.6% | Added |
| SG Americas Securities, LLC | 31,254 | $683.0K | 0.00% | −7,294−18.9% | Reduced |
| New York State Common Retirement Fund | 31,284 | $683.9K | 0.00% | +5,900+23.2% | Added |
| Diversified Trust Co | 32,420 | $708.7K | 0.01% | +18,760+137.3% | Added |
| BNP Paribas Arbitrage, SA | 32,601 | $712.7K | 0.00% | −7,780−19.3% | Reduced |
| Vanguard Global Advisers, LLC | 34,371 | $751.4K | 0.00% | −3,044−8.1% | Reduced |
| Lion Point Capital, LP | 36,000 | $787.0K | 3.76% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 36,151 | $790.3K | 0.00% | +11,412+46.1% | Added |
| Cetera Investment Advisers | 36,443 | $796.6K | 0.00% | +13,684+60.1% | Added |
| Voya Investment Management LLC | 36,874 | $806.1K | 0.00% | −16,203−30.5% | Reduced |
| Wesbanco Bank Inc | 37,000 | $808.8K | 0.02% | 00.0% | Unchanged |
| Palumbo Wealth Management LLC | 37,631 | $822.6K | 0.17% | +448+1.2% | Added |
| Victory Capital Management Inc | 37,928 | $829.1K | 0.00% | −403−1.1% | Reduced |
| Mariner, LLC | 38,128 | $833.4K | 0.00% | −35,071−47.9% | Reduced |
| Jupiter Topco LLC | 39,335 | $860.1K | 0.00% | +39,335 | New |
| HighTower Advisors, LLC | 39,355 | $860.3K | 0.00% | +2,324+6.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 40,891 | $893.9K | 0.00% | +40,891 | New |
| Assenagon Asset Management S.A. | 41,737 | $912.4K | 0.00% | 00.0% | Unchanged |
| Stifel Financial Corp | 43,714 | $955.6K | 0.00% | +2,000+4.8% | Added |
| Manufacturers Life Insurance Company, The | 44,305 | $968.5K | 0.00% | +4,401+11.0% | Added |
| State of Wisconsin Investment Board | 45,209 | $988.3K | 0.00% | −637−1.4% | Reduced |
| Barclays PLC | 48,695 | $1.06M | 0.00% | −1,628−3.2% | Reduced |
| Profund Advisors LLC | 49,412 | $1.08M | 0.03% | −6,492−11.6% | Reduced |
| MetLife Investment Management | 51,930 | $1.14M | 0.01% | +5,092+10.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 52,360 | $1.14M | 0.00% | +3,133+6.4% | Added |
| Ieq Capital, LLC | 54,835 | $1.20M | 0.01% | −54,788−50.0% | Reduced |
| Headlands Technologies LLC | 56,227 | $1.23M | 0.13% | +30,835+121.4% | Added |
| Vanguard Asset Management, Ltd | 58,406 | $1.28M | 0.00% | +6,309+12.1% | Added |
| XTX Topco Ltd | 59,164 | $1.29M | 0.02% | −19,843−25.1% | Reduced |
| Pavaki Capital Management LLC | 60,000 | $1.31M | 0.75% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 62,775 | $1.37M | 0.09% | +14,221+29.3% | Added |
| Virtus Investment Advisers, Inc. | 63,720 | $1.39M | 0.32% | +22,275+53.7% | Added |
| Legal & General Group Plc | 65,483 | $1.43M | 0.00% | +6,425+10.9% | Added |
| 1492 Capital Management LLC | 66,997 | $1.46M | 0.43% | +66,997 | New |
| Toroso Investments, LLC | 72,212 | $1.58M | 0.00% | +6,886+10.5% | Added |
| Tema ETFs LLC | 72,212 | $1.58M | 0.05% | +13,864+23.8% | Added |
| Seven Fleet Capital Management LP | 77,930 | $1.65M | 0.27% | +77,930 | New |
| Winton Group Ltd | 76,500 | $1.67M | 0.05% | +66,200+642.7% | Added |
| Aquatic Capital Management LLC | 78,922 | $1.73M | 0.06% | +9,839+14.2% | Added |
| Hussman Strategic Advisors, Inc. | 84,000 | $1.84M | 0.42% | +84,000 | New |
| California State Teachers Retirement System | 93,481 | $2.04M | 0.00% | −9,528−9.2% | Reduced |
| Deutsche Bank AG | 95,315 | $2.08M | 0.00% | +20,332+27.1% | Added |
| Rafferty Asset Management, LLC | 97,787 | $2.14M | 0.00% | −26,936−21.6% | Reduced |
| Alliancebernstein L.P. | 106,040 | $2.48M | 0.00% | −182,527−63.3% | Reduced |
| Schroder Investment Management Group | 115,208 | $2.51M | 0.00% | +115,208 | New |
| PFM Health Sciences, LP | 118,422 | $2.59M | 0.22% | −126,599−51.7% | Reduced |
| Wellington Management Group LLP | 124,241 | $2.72M | 0.00% | +655+0.5% | Added |
| Capital Fund Management S.A. | 125,091 | $2.73M | 0.02% | −20,475−14.1% | Reduced |
| Pale Fire Capital SE | 125,550 | $2.74M | 0.20% | −158,910−55.9% | Reduced |
| Price T Rowe Associates Inc | 128,199 | $2.80M | 0.00% | +21,066+19.7% | Added |
| Wells Fargo & Company | 130,054 | $2.84M | 0.00% | +49,660+61.8% | Added |
| Rhumbline Advisers | 132,358 | $2.89M | 0.00% | +17,596+15.3% | Added |
| Torray LLC | 133,835 | $2.93M | 0.39% | +28,967+27.6% | Added |
| Russell Investments Group, Ltd. | 135,012 | $2.95M | 0.00% | +33,520+33.0% | Added |
| Invesco Ltd. | 138,060 | $3.02M | 0.00% | −114,701−45.4% | Reduced |
| SummitTX Capital, L.P. | 140,797 | $3.08M | 0.08% | +74,457+112.2% | Added |
| UBS Asset Management Americas Inc | 161,323 | $3.53M | 0.00% | +11,526+7.7% | Added |
| Atom Investors LP | 162,524 | $3.55M | 0.32% | +6,559+4.2% | Added |
| Swiss National Bank | 168,100 | $3.67M | 0.00% | +6,700+4.2% | Added |
| Nomura Asset Management International Inc. | 180,000 | $3.94M | 0.01% | 00.0% | Unchanged |
| SEI Investments Co | 193,134 | $4.22M | 0.00% | −24,466−11.2% | Reduced |
| Citigroup Inc | 195,703 | $4.28M | 0.00% | +175,371+862.5% | Added |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 200,000 | $4.37M | 1.15% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 207,936 | $4.53M | 0.00% | +195,580+1,582.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 207,250 | $4.53M | 0.01% | −124,415−37.5% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 212,713 | $4.65M | 0.09% | +212,713 | New |
| Man Group plc | 213,703 | $4.67M | 0.01% | +31,687+17.4% | Added |
| Pinnacle Financial Partners, Inc. | 217,173 | $4.75M | 0.03% | +14,891+7.4% | Added |
| JPMorgan Chase & Co | 231,446 | $5.13M | 0.00% | −27,073−10.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 236,717 | $5.17M | 0.03% | −23,909−9.2% | Reduced |
| Sector Gamma AS | 241,739 | $5.28M | 1.15% | −44,268−15.5% | Reduced |
| Trexquant Investment LP | 255,949 | $5.60M | 0.03% | +54,172+26.8% | Added |
| Citadel Advisors LLC | 258,278 | $5.65M | 0.00% | −372,664−59.1% | Reduced |
| Mackenzie Financial Corp | 280,079 | $6.12M | 0.01% | +280,079 | New |
| Verition Fund Management LLC | 304,939 | $6.67M | 0.05% | +304,939 | New |
| Alyeska Investment Group, L.P. | 308,507 | $6.74M | 0.02% | +308,507 | New |
| Brevan Howard Capital Management LP | 309,065 | $6.76M | 0.09% | +104,220+50.9% | Added |
| Renaissance Technologies LLC | 321,600 | $7.03M | 0.01% | −176,600−35.4% | Reduced |
| Envestnet Asset Management Inc | 327,617 | $7.16M | 0.00% | +285,745+682.4% | Added |
| DAFNA Capital Management LLC | 335,255 | $7.33M | 1.40% | +117,900+54.2% | Added |
| Jones Hill Capital LP | 340,000 | $7.43M | 1.58% | +340,000 | New |
| Hennion & Walsh Asset Management, Inc. | 342,883 | $7.50M | 0.21% | +128,076+59.6% | Added |
| Ameriprise Financial Inc | 346,852 | $7.58M | 0.00% | +62,607+22.0% | Added |
| HRT Financial LP | 363,147 | $7.94M | 0.01% | +274,243+308.5% | Added |
| Jupiter Asset Management Ltd | 366,568 | $8.01M | 0.04% | +366,568 | New |
| Squarepoint Ops LLC | 370,317 | $8.10M | 0.02% | +188,765+104.0% | Added |
| Standard Life Aberdeen plc | 372,766 | $8.15M | 0.01% | +85,797+29.9% | Added |
| Jump Financial, LLC | 402,846 | $8.81M | 0.08% | +402,846 | New |
| Knott David M Jr | 437,245 | $9.56M | 5.05% | +15,245+3.6% | Added |
| Granahan Investment Management Inc | 446,988 | $9.77M | 0.35% | +140,667+45.9% | Added |
| Susquehanna International Group, LLP | 454,101 | $9.93M | 0.01% | +257,480+131.0% | Added |
| First Trust Advisors LP | 456,700 | $9.98M | 0.01% | +456,700 | New |
| Qube Research & Technologies Ltd | 477,182 | $10.4M | 0.01% | +441,135+1,223.8% | Added |
| Panagora Asset Management Inc | 546,517 | $11.9M | 0.04% | +297,110+119.1% | Added |
| Apis Capital Advisors, LLC | 556,000 | $12.2M | 1.18% | +6,000+1.1% | Added |
| Rhenman & Partners Asset Management AB | 560,250 | $12.2M | 1.16% | +181,000+47.7% | Added |