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, Q1 2026
Institutional positions in Syndax Pharmaceuticals Inc as of Mar 31, 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
- 247
- +20 vs. Q4 2025
- Shares held
- 99.4M
- +5.70M (+6.1%) vs. Q4 2025
- Total value
- $2.32B
- +$352.9M (+17.9%) vs. Q4 2025
- New holders
- 45
- 99 more added
- Sold out
- 25
- 68 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Zurcher Kantonalbank (Zurich Cantonalbank) | 24,739 | $577.9K | 0.00% | +4,198+20.4% | Added |
| New York State Common Retirement Fund | 25,384 | $593.0K | 0.00% | 00.0% | Unchanged |
| Headlands Technologies LLC | 25,392 | $593.2K | 0.07% | +25,392 | New |
| State of New Jersey Common Pension Fund D | 27,968 | $653.3K | 0.00% | +27,968 | New |
| Los Angeles Capital Management LLC | 28,538 | $666.6K | 0.00% | −36,742−56.3% | Reduced |
| Intech Investment Management LLC | 30,300 | $707.8K | 0.01% | −10,493−25.7% | Reduced |
| Bridgefront Capital, LLC | 31,101 | $726.5K | 0.18% | +11,349+57.5% | Added |
| Creative Planning | 31,902 | $745.2K | 0.00% | +7,191+29.1% | Added |
| Caitong International Asset Management Co., Ltd | 33,197 | $775.5K | 0.14% | +33,197 | New |
| Sectoral Asset Management Inc | 31,680 | $787.5K | 0.65% | −29,520−48.2% | Reduced |
| Lion Point Capital, LP | 36,000 | $841.0K | 5.03% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 36,047 | $842.1K | 0.00% | −652,090−94.8% | Reduced |
| Voleon Capital Management LP | 36,633 | $855.7K | 0.02% | +36,633 | New |
| Wesbanco Bank Inc | 37,000 | $864.3K | 0.02% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 37,031 | $865.0K | 0.00% | +18,091+95.5% | Added |
| CWM, LLC | 37,046 | $865.4K | 0.00% | +5,134+16.1% | Added |
| Palumbo Wealth Management LLC | 37,183 | $868.6K | 0.21% | −14,185−27.6% | Reduced |
| Vanguard Global Advisers, LLC | 37,415 | $874.0K | 0.00% | +37,415 | New |
| Victory Capital Management Inc | 38,331 | $895.4K | 0.00% | +28,624+294.9% | Added |
| Engineers Gate Manager LP | 38,408 | $897.2K | 0.01% | +12,143+46.2% | Added |
| SG Americas Securities, LLC | 38,548 | $900.0K | 0.00% | −90,679−70.2% | Reduced |
| Cerity Partners LLC | 39,083 | $913.0K | 0.00% | +10,227+35.4% | Added |
| Janus Henderson Group PLC | 39,335 | $920.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 39,904 | $932.2K | 0.00% | +14,443+56.7% | Added |
| BNP Paribas Arbitrage, SA | 40,381 | $943.3K | 0.00% | +26,153+183.8% | Added |
| Legato Capital Management LLC | 41,376 | $966.5K | 0.09% | +41,376 | New |
| Virtus Investment Advisers, Inc. | 41,445 | $968.2K | 0.27% | +7,896+23.5% | Added |
| Stifel Financial Corp | 41,714 | $974.4K | 0.00% | −34,200−45.1% | Reduced |
| Assenagon Asset Management S.A. | 41,737 | $975.0K | 0.00% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 41,872 | $978.1K | 0.00% | +17,066+68.8% | Added |
| Clearline Capital LP | 43,413 | $1.01M | 0.08% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 45,846 | $1.07M | 0.00% | +5,085+12.5% | Added |
| MetLife Investment Management | 46,838 | $1.09M | 0.01% | −2,894−5.8% | Reduced |
| Gsa Capital Partners LLP | 48,554 | $1.13M | 0.07% | +26,031+115.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 49,227 | $1.14M | 0.00% | +182+0.4% | Added |
| Barclays PLC | 50,323 | $1.18M | 0.00% | −264,349−84.0% | Reduced |
| Vanguard Asset Management, Ltd | 52,097 | $1.22M | 0.00% | +52,097 | New |
| Voya Investment Management LLC | 53,077 | $1.24M | 0.00% | −505−0.9% | Reduced |
| Neo Ivy Capital Management | 53,149 | $1.24M | 0.33% | +53,149 | New |
| Marshall Wace, LLP | 54,274 | $1.27M | 0.00% | +54,274 | New |
| Profund Advisors LLC | 55,904 | $1.31M | 0.05% | −4,134−6.9% | Reduced |
| Tema ETFs LLC | 58,348 | $1.36M | 0.09% | −41,705−41.7% | Reduced |
| Legal & General Group Plc | 59,058 | $1.38M | 0.00% | −19,178−24.5% | Reduced |
| Pavaki Capital Management LLC | 60,000 | $1.40M | 0.98% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 62,330 | $1.46M | 0.01% | −102,670−62.2% | Reduced |
| Toroso Investments, LLC | 65,326 | $1.53M | 0.00% | +65,326 | New |
| SummitTX Capital, L.P. | 66,340 | $1.55M | 0.05% | +27,213+69.6% | Added |
| Tudor Investment Corp Et Al | 69,059 | $1.61M | 0.01% | +21,638+45.6% | Added |
| Aquatic Capital Management LLC | 69,083 | $1.61M | 0.05% | +67,040+3,281.4% | Added |
| Mariner, LLC | 73,199 | $1.71M | 0.00% | +18,212+33.1% | Added |
| Deutsche Bank AG | 74,983 | $1.75M | 0.00% | +8,375+12.6% | Added |
| XTX Topco Ltd | 79,007 | $1.85M | 0.03% | +60,531+327.6% | Added |
| Wells Fargo & Company | 80,394 | $1.88M | 0.00% | −80,456−50.0% | Reduced |
| HRT Financial LP | 88,904 | $2.08M | 0.01% | +88,904 | New |
| Twinbeech Capital LP | 90,006 | $2.10M | 0.22% | +37,106+70.1% | Added |
| Yelin Lapidot Holdings Management Ltd. | 96,297 | $2.25M | 0.47% | −12,080−11.1% | Reduced |
| Russell Investments Group, Ltd. | 101,492 | $2.37M | 0.00% | +11,853+13.2% | Added |
| California State Teachers Retirement System | 103,009 | $2.41M | 0.00% | +24,810+31.7% | Added |
| Torray LLC | 104,868 | $2.45M | 0.36% | +7,066+7.2% | Added |
| ExodusPoint Capital Management, LP | 105,051 | $2.45M | 0.02% | −449,710−81.1% | Reduced |
| Price T Rowe Associates Inc | 107,133 | $2.50M | 0.00% | +12,304+13.0% | Added |
| Ieq Capital, LLC | 109,623 | $2.56M | 0.01% | +9,747+9.8% | Added |
| Rhumbline Advisers | 114,762 | $2.68M | 0.00% | −4,037−3.4% | Reduced |
| Cinctive Capital Management LP | 117,319 | $2.74M | 0.18% | +117,319 | New |
| Wellington Management Group LLP | 123,586 | $2.89M | 0.00% | +87,956+246.9% | Added |
| Rafferty Asset Management, LLC | 124,723 | $2.91M | 0.01% | −37,220−23.0% | Reduced |
| Capital Fund Management S.A. | 145,566 | $3.40M | 0.03% | −88,305−37.8% | Reduced |
| UBS Asset Management Americas Inc | 149,797 | $3.50M | 0.00% | +7,390+5.2% | Added |
| Atom Investors LP | 155,965 | $3.64M | 0.26% | +14,299+10.1% | Added |
| Swiss National Bank | 161,400 | $3.77M | 0.00% | 00.0% | Unchanged |
| FMR LLC | 173,993 | $4.06M | 0.00% | +33,433+23.8% | Added |
| Nomura Asset Management International Inc. | 180,000 | $4.21M | 0.01% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 181,552 | $4.24M | 0.01% | +161,738+816.3% | Added |
| Man Group plc | 182,016 | $4.25M | 0.01% | +137,378+307.8% | Added |
| Susquehanna International Group, LLP | 196,621 | $4.59M | 0.01% | +178,468+983.1% | Added |
| Essex Investment Management Co LLC | 198,985 | $4.65M | 0.74% | +198,985 | New |
| Millennium Management LLC | 199,524 | $4.66M | 0.00% | +147,587+284.2% | Added |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 200,000 | $4.67M | 1.78% | 00.0% | Unchanged |
| Trexquant Investment LP | 201,777 | $4.71M | 0.03% | +114,263+130.6% | Added |
| Pinnacle Financial Partners, Inc. | 202,282 | $4.73M | 0.04% | −4,319−2.1% | Reduced |
| Brevan Howard Capital Management LP | 204,845 | $4.79M | 0.05% | −310,284−60.2% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 214,807 | $5.02M | 0.17% | +31,005+16.9% | Added |
| DAFNA Capital Management LLC | 217,355 | $5.08M | 1.16% | −60,500−21.8% | Reduced |
| SEI Investments Co | 217,600 | $5.08M | 0.00% | +57,962+36.3% | Added |
| Canada Pension Plan Investment Board | 229,600 | $5.36M | 0.00% | 00.0% | Unchanged |
| PFM Health Sciences, LP | 245,021 | $5.72M | 0.60% | +2,054+0.8% | Added |
| JPMorgan Chase & Co | 258,519 | $5.81M | 0.00% | −119,985−31.7% | Reduced |
| Panagora Asset Management Inc | 249,407 | $5.83M | 0.02% | +124,308+99.4% | Added |
| Invesco Ltd. | 252,761 | $5.90M | 0.00% | +92,236+57.5% | Added |
| Alliancebernstein L.P. | 288,567 | $6.06M | 0.00% | +193,687+204.1% | Added |
| Schonfeld Strategic Advisors LLC | 260,626 | $6.09M | 0.05% | +247,526+1,889.5% | Added |
| Ameriprise Financial Inc | 284,245 | $6.64M | 0.00% | +1,658+0.6% | Added |
| Pale Fire Capital SE | 284,460 | $6.64M | 0.58% | 00.0% | Unchanged |
| Sector Gamma AS | 286,007 | $6.68M | 1.58% | +33,945+13.5% | Added |
| Standard Life Aberdeen plc | 286,969 | $6.70M | 0.01% | −85,823−23.0% | Reduced |
| Granahan Investment Management Inc | 306,321 | $7.16M | 0.35% | −60,472−16.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 331,665 | $7.75M | 0.01% | +194,036+141.0% | Added |
| Jane Street Group, LLC | 335,531 | $7.84M | 0.01% | −413,389−55.2% | Reduced |
| Integral Health Asset Management, LLC | 350,000 | $8.18M | 0.43% | +150,000+75.0% | Added |
| Rhenman & Partners Asset Management AB | 379,250 | $8.86M | 1.09% | −107,750−22.1% | Reduced |