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 |
|---|---|---|---|---|---|
| MetLife Investment Management | 49,732 | $465.7K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 52,845 | $492.9K | 0.00% | −3,997−7.0% | Reduced |
| Tudor Investment Corp Et Al | 53,056 | $496.9K | 0.00% | −13,932−20.8% | Reduced |
| Lion Point Capital, LP | 55,000 | $515.1K | 3.50% | 00.0% | Unchanged |
| Quarry LP | 59,000 | $552.5K | 0.13% | +57,000+2,850.0% | Added |
| Sectoral Asset Management Inc | 63,300 | $592.8K | 0.39% | +63,300 | New |
| Deutsche Bank AG | 64,771 | $606.9K | 0.00% | −139,961−68.4% | Reduced |
| California State Teachers Retirement System | 72,019 | $674.5K | 0.00% | 00.0% | Unchanged |
| Phoenix Holdings Ltd. | 74,963 | $701.3K | 0.01% | +74,963 | New |
| Price T Rowe Associates Inc | 75,404 | $706.0K | 0.00% | +9,290+14.1% | Added |
| Legal & General Group Plc | 84,575 | $792.0K | 0.00% | +3,937+4.9% | 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 |
| Stifel Financial Corp | 89,102 | $834.4K | 0.00% | +14,750+19.8% | Added |
| Prelude Capital Management, LLC | 89,833 | $841.3K | 0.08% | −1,884−2.1% | Reduced |
| UBS Oconnor LLC | 90,441 | $847.0K | 0.02% | +31,003+52.2% | Added |
| Voya Investment Management LLC | 90,855 | $850.9K | 0.00% | +44,666+96.7% | Added |
| Stonepine Capital Management, LLC | 92,900 | $870.0K | 0.86% | +92,900 | New |
| Ameriprise Financial Inc | 96,674 | $905.4K | 0.00% | +62,446+182.4% | Added |
| Polar Asset Management Partners Inc. | 97,113 | $909.5K | 0.02% | −9,515−8.9% | Reduced |
| HSBC Holdings PLC | 106,787 | $966.4K | 0.00% | +56,512+112.4% | Added |
| Invesco Ltd. | 105,157 | $984.8K | 0.00% | +28,309+36.8% | Added |
| Yelin Lapidot Holdings Management Ltd. | 108,377 | $1.01M | 0.19% | 00.0% | Unchanged |
| Citigroup Inc | 111,752 | $1.05M | 0.00% | −88,898−44.3% | Reduced |
| Twinbeech Capital LP | 112,794 | $1.06M | 0.02% | −143,038−55.9% | Reduced |
| Alliancebernstein L.P. | 117,649 | $1.10M | 0.00% | −51,035−30.3% | Reduced |
| Schroder Investment Management Group | 122,163 | $1.14M | 0.00% | +64,598+112.2% | Added |
| Verition Fund Management LLC | 125,345 | $1.17M | 0.01% | +90,308+257.8% | Added |
| Rafferty Asset Management, LLC | 126,045 | $1.18M | 0.00% | −45,496−26.5% | Reduced |
| Balyasny Asset Management LLC | 126,145 | $1.18M | 0.00% | −1,690,864−93.1% | Reduced |
| Russell Investments Group, Ltd. | 126,158 | $1.18M | 0.00% | +8,545+7.3% | Added |
| HRT Financial LP | 127,111 | $1.19M | 0.01% | −17,923−12.4% | Reduced |
| Rhumbline Advisers | 128,732 | $1.21M | 0.00% | +7,922+6.6% | Added |
| Boothbay Fund Management, LLC | 128,845 | $1.21M | 0.04% | +128,845 | New |
| State of Wisconsin Investment Board | 141,113 | $1.32M | 0.00% | +77,006+120.1% | Added |
| Avidity Partners Management LP | 150,000 | $1.40M | 0.28% | −775,000−83.8% | Reduced |
| Wells Fargo & Company | 154,406 | $1.45M | 0.00% | +111,446+259.4% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 155,000 | $1.45M | 0.00% | −95,000−38.0% | Reduced |
| Dark Forest Capital Management LP | 160,327 | $1.50M | 0.06% | +121,118+308.9% | Added |
| FMR LLC | 160,918 | $1.51M | 0.00% | +38,660+31.6% | Added |
| Swiss National Bank | 164,300 | $1.54M | 0.00% | +14,900+10.0% | Added |
| Jane Street Group, LLC | 167,493 | $1.57M | 0.00% | +75,277+81.6% | Added |
| Cubist Systematic Strategies, LLC | 176,030 | $1.65M | 0.02% | +175,630+43,907.5% | Added |
| Capital Fund Management S.A. | 178,289 | $1.67M | 0.02% | +178,289 | New |
| Engineers Gate Manager LP | 179,276 | $1.68M | 0.02% | +52,791+41.7% | Added |
| Macquarie Group Ltd | 180,000 | $1.69M | 0.00% | 00.0% | Unchanged |
| Tang Capital Management LLC | 200,000 | $1.87M | 0.09% | 00.0% | Unchanged |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 200,000 | $1.87M | 1.18% | 00.0% | Unchanged |
| SummitTX Capital, L.P. | 211,244 | $1.98M | 0.09% | +47,011+28.6% | Added |
| Walleye Capital LLC | 226,015 | $2.12M | 0.02% | −101,119−30.9% | Reduced |
| Man Group plc | 228,167 | $2.14M | 0.00% | +94,031+70.1% | Added |
| AQR Capital Management LLC | 230,577 | $2.16M | 0.00% | −146,867−38.9% | Reduced |
| Marshall Wace, LLP | 232,123 | $2.17M | 0.00% | +232,123 | New |
| Bank of New York Mellon Corp | 237,101 | $2.22M | 0.00% | +7,343+3.2% | Added |
| UBS Asset Management Americas Inc | 256,138 | $2.40M | 0.00% | +55,442+27.6% | Added |
| Schonfeld Strategic Advisors LLC | 264,744 | $2.48M | 0.02% | +218,349+470.6% | Added |
| Nuveen, LLC | 266,043 | $2.49M | 0.00% | +41,890+18.7% | Added |
| JPMorgan Chase & Co | 272,874 | $2.56M | 0.00% | −832,933−75.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 276,932 | $2.59M | 0.06% | +276,932 | New |
| Standard Life Aberdeen plc | 303,426 | $2.84M | 0.00% | +170,993+129.1% | Added |
| Exome Asset Management LLC | 308,298 | $2.89M | 2.38% | −28,900−8.6% | Reduced |
| Royal Bank of Canada | 351,263 | $3.29M | 0.00% | +349,342+18,185.4% | Added |
| Knott David M Jr | 352,778 | $3.30M | 1.50% | +224,778+175.6% | Added |
| Susquehanna International Group, LLP | 371,463 | $3.48M | 0.01% | +41,557+12.6% | Added |
| Jump Financial, LLC | 381,035 | $3.57M | 0.04% | +381,035 | New |
| Barclays PLC | 382,966 | $3.59M | 0.00% | +182,977+91.5% | Added |
| Two Sigma Advisers, LP | 392,452 | $3.68M | 0.01% | −110,700−22.0% | Reduced |
| Silverarc Capital Management, LLC | 402,964 | $3.77M | 0.77% | −906,260−69.2% | Reduced |
| Hudson Bay Capital Management LP | 443,300 | $4.15M | 0.03% | +193,300+77.3% | Added |
| Palo Alto Investors LP | 444,367 | $4.16M | 0.89% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 487,647 | $4.57M | 0.00% | +21,765+4.7% | Added |
| BNP Paribas Arbitrage, SA | 499,903 | $4.68M | 0.00% | +282,910+130.4% | Added |
| Saturn V Capital Management LLC | 500,551 | $4.69M | 1.90% | −540,729−51.9% | Reduced |
| Caption Management, LLC | 504,471 | $4.72M | 0.43% | +322,571+177.3% | Added |
| DAFNA Capital Management LLC | 543,602 | $5.09M | 1.41% | −900−0.2% | Reduced |
| Two Sigma Investments, LP | 556,971 | $5.22M | 0.01% | −223,038−28.6% | Reduced |
| Rhenman & Partners Asset Management AB | 574,000 | $5.38M | 0.68% | +141,000+32.6% | Added |
| Zimmer Partners, LP | 605,800 | $5.67M | 0.13% | +392,641+184.2% | Added |
| Citadel Advisors LLC | 640,000 | $5.99M | 0.01% | −2,274,882−78.0% | Reduced |
| D. E. Shaw & Co., Inc. | 644,542 | $6.04M | 0.01% | −143,045−18.2% | Reduced |
| Casdin Capital, LLC | 650,000 | $6.08M | 0.55% | +15,000+2.4% | Added |
| Candriam Luxembourg S.C.A. | 675,085 | $6.32M | 0.04% | +224,650+49.9% | Added |
| Ensign Peak Advisors, Inc | 689,064 | $6.45M | 0.01% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 712,310 | $6.67M | 0.00% | +22,617+3.3% | Added |
| Nantahala Capital Management, LLC | 754,503 | $7.07M | 0.50% | +200,000+36.1% | Added |
| Northern Trust Corp | 770,451 | $7.22M | 0.00% | −8,307−1.1% | Reduced |
| Renaissance Technologies LLC | 837,700 | $7.85M | 0.01% | +156,273+22.9% | Added |
| Morgan Stanley | 849,236 | $7.95M | 0.00% | −1,432,680−62.8% | Reduced |
| Parkman Healthcare Partners LLC | 867,813 | $8.13M | 0.94% | +272,826+45.9% | Added |
| Granahan Investment Management Inc | 991,388 | $9.28M | 0.38% | +441,446+80.3% | Added |
| Algert Global LLC | 1,021,280 | $9.56M | 0.20% | +136,680+15.5% | Added |
| Prosight Management, LP | 1,079,673 | $10.1M | 2.47% | +470,421+77.2% | Added |
| Soleus Capital Management, L.P. | 1,092,110 | $10.2M | 0.71% | +275,500+33.7% | Added |
| Aisling Capital Management LP | 1,316,806 | $12.3M | 3.43% | +291,806+28.5% | Added |
| Eventide Asset Management, LLC | 1,414,081 | $13.2M | 0.23% | +236,019+20.0% | Added |
| Adage Capital Partners GP, L.L.C. | 1,432,440 | $13.4M | 0.02% | +800,800+126.8% | Added |
| UBS Group AG | 1,435,415 | $13.4M | 0.00% | −280,363−16.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,445,440 | $13.5M | 0.03% | +224,171+18.4% | Added |
| Sofinnova Investments, Inc. | 1,524,440 | $14.3M | 0.97% | −750,783−33.0% | Reduced |
| Sphera Funds Management Ltd. | 1,571,564 | $14.7M | 3.85% | −92,410−5.6% | Reduced |