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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,456,907 | $97.9M | 0.00% | +1,914,656+22.4% | Added |
| Kynam Capital Management, LP | 8,520,000 | $79.8M | 8.59% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 5,797,195 | $54.3M | 0.01% | +1,875,654+47.8% | Added |
| Vanguard Group Inc | 5,033,934 | $47.1M | 0.00% | +162,869+3.3% | Added |
| Eversept Partners, LP | 4,065,355 | $38.1M | 3.84% | −146,915−3.5% | Reduced |
| Bank of America Corp | 3,838,872 | $36.0M | 0.00% | +967,873+33.7% | Added |
| State Street Corp | 3,442,752 | $32.2M | 0.00% | −528,980−13.3% | Reduced |
| StemPoint Capital LP | 2,372,634 | $22.2M | 7.15% | +774,040+48.4% | Added |
| Franklin Resources Inc | 2,359,677 | $22.1M | 0.01% | +298,272+14.5% | Added |
| Point72 Asset Management, L.P. | 2,127,467 | $19.9M | 0.05% | −1,881,233−46.9% | Reduced |
| Catalio Capital Management, LP | 2,104,512 | $19.7M | 4.13% | +370,811+21.4% | Added |
| Kingdon Capital Management, L.L.C. | 2,100,000 | $19.7M | 3.80% | +100,000+5.0% | Added |
| Geode Capital Management, LLC | 2,049,350 | $19.2M | 0.00% | +26,365+1.3% | Added |
| Assenagon Asset Management S.A. | 2,039,987 | $19.1M | 0.03% | 00.0% | Unchanged |
| Woodline Partners LP | 1,892,751 | $17.7M | 0.09% | +948+0.1% | Added |
| Qube Research & Technologies Ltd | 1,665,916 | $15.6M | 0.02% | +831,067+99.5% | Added |
| Millennium Management LLC | 1,598,613 | $15.0M | 0.01% | +1,169,961+272.9% | Added |
| Sphera Funds Management Ltd. | 1,571,564 | $14.7M | 3.85% | −92,410−5.6% | Reduced |
| Sofinnova Investments, Inc. | 1,524,440 | $14.3M | 0.97% | −750,783−33.0% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,445,440 | $13.5M | 0.03% | +224,171+18.4% | Added |
| UBS Group AG | 1,435,415 | $13.4M | 0.00% | −280,363−16.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,432,440 | $13.4M | 0.02% | +800,800+126.8% | Added |
| Eventide Asset Management, LLC | 1,414,081 | $13.2M | 0.23% | +236,019+20.0% | Added |
| Aisling Capital Management LP | 1,316,806 | $12.3M | 3.43% | +291,806+28.5% | Added |
| Soleus Capital Management, L.P. | 1,092,110 | $10.2M | 0.71% | +275,500+33.7% | Added |
| Prosight Management, LP | 1,079,673 | $10.1M | 2.47% | +470,421+77.2% | Added |
| Algert Global LLC | 1,021,280 | $9.56M | 0.20% | +136,680+15.5% | Added |
| Granahan Investment Management Inc | 991,388 | $9.28M | 0.38% | +441,446+80.3% | Added |
| Parkman Healthcare Partners LLC | 867,813 | $8.13M | 0.94% | +272,826+45.9% | Added |
| Morgan Stanley | 849,236 | $7.95M | 0.00% | −1,432,680−62.8% | Reduced |
| Renaissance Technologies LLC | 837,700 | $7.85M | 0.01% | +156,273+22.9% | Added |
| Northern Trust Corp | 770,451 | $7.22M | 0.00% | −8,307−1.1% | Reduced |
| Nantahala Capital Management, LLC | 754,503 | $7.07M | 0.50% | +200,000+36.1% | Added |
| Charles Schwab Investment Management Inc | 712,310 | $6.67M | 0.00% | +22,617+3.3% | Added |
| Ensign Peak Advisors, Inc | 689,064 | $6.45M | 0.01% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 675,085 | $6.32M | 0.04% | +224,650+49.9% | Added |
| Casdin Capital, LLC | 650,000 | $6.08M | 0.55% | +15,000+2.4% | Added |
| D. E. Shaw & Co., Inc. | 644,542 | $6.04M | 0.01% | −143,045−18.2% | Reduced |
| Citadel Advisors LLC | 640,000 | $5.99M | 0.01% | −2,274,882−78.0% | Reduced |
| Zimmer Partners, LP | 605,800 | $5.67M | 0.13% | +392,641+184.2% | Added |
| Rhenman & Partners Asset Management AB | 574,000 | $5.38M | 0.68% | +141,000+32.6% | Added |
| Two Sigma Investments, LP | 556,971 | $5.22M | 0.01% | −223,038−28.6% | Reduced |
| DAFNA Capital Management LLC | 543,602 | $5.09M | 1.41% | −900−0.2% | Reduced |
| Caption Management, LLC | 504,471 | $4.72M | 0.43% | +322,571+177.3% | Added |
| Saturn V Capital Management LLC | 500,551 | $4.69M | 1.90% | −540,729−51.9% | Reduced |
| BNP Paribas Arbitrage, SA | 499,903 | $4.68M | 0.00% | +282,910+130.4% | Added |
| Dimensional Fund Advisors LP | 487,647 | $4.57M | 0.00% | +21,765+4.7% | Added |
| Palo Alto Investors LP | 444,367 | $4.16M | 0.89% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 443,300 | $4.15M | 0.03% | +193,300+77.3% | Added |
| Silverarc Capital Management, LLC | 402,964 | $3.77M | 0.77% | −906,260−69.2% | Reduced |
| Two Sigma Advisers, LP | 392,452 | $3.68M | 0.01% | −110,700−22.0% | Reduced |
| Barclays PLC | 382,966 | $3.59M | 0.00% | +182,977+91.5% | Added |
| Jump Financial, LLC | 381,035 | $3.57M | 0.04% | +381,035 | New |
| Susquehanna International Group, LLP | 371,463 | $3.48M | 0.01% | +41,557+12.6% | Added |
| Knott David M Jr | 352,778 | $3.30M | 1.50% | +224,778+175.6% | Added |
| Royal Bank of Canada | 351,263 | $3.29M | 0.00% | +349,342+18,185.4% | Added |
| Exome Asset Management LLC | 308,298 | $2.89M | 2.38% | −28,900−8.6% | Reduced |
| Standard Life Aberdeen plc | 303,426 | $2.84M | 0.00% | +170,993+129.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 276,932 | $2.59M | 0.06% | +276,932 | New |
| JPMorgan Chase & Co | 272,874 | $2.56M | 0.00% | −832,933−75.3% | Reduced |
| Nuveen, LLC | 266,043 | $2.49M | 0.00% | +41,890+18.7% | Added |
| Schonfeld Strategic Advisors LLC | 264,744 | $2.48M | 0.02% | +218,349+470.6% | Added |
| UBS Asset Management Americas Inc | 256,138 | $2.40M | 0.00% | +55,442+27.6% | Added |
| Bank of New York Mellon Corp | 237,101 | $2.22M | 0.00% | +7,343+3.2% | Added |
| Marshall Wace, LLP | 232,123 | $2.17M | 0.00% | +232,123 | New |
| AQR Capital Management LLC | 230,577 | $2.16M | 0.00% | −146,867−38.9% | Reduced |
| Man Group plc | 228,167 | $2.14M | 0.00% | +94,031+70.1% | Added |
| Walleye Capital LLC | 226,015 | $2.12M | 0.02% | −101,119−30.9% | Reduced |
| SummitTX Capital, L.P. | 211,244 | $1.98M | 0.09% | +47,011+28.6% | Added |
| 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 |
| Macquarie Group Ltd | 180,000 | $1.69M | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 179,276 | $1.68M | 0.02% | +52,791+41.7% | Added |
| Capital Fund Management S.A. | 178,289 | $1.67M | 0.02% | +178,289 | New |
| Cubist Systematic Strategies, LLC | 176,030 | $1.65M | 0.02% | +175,630+43,907.5% | Added |
| Jane Street Group, LLC | 167,493 | $1.57M | 0.00% | +75,277+81.6% | Added |
| Swiss National Bank | 164,300 | $1.54M | 0.00% | +14,900+10.0% | Added |
| FMR LLC | 160,918 | $1.51M | 0.00% | +38,660+31.6% | Added |
| Dark Forest Capital Management LP | 160,327 | $1.50M | 0.06% | +121,118+308.9% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 155,000 | $1.45M | 0.00% | −95,000−38.0% | Reduced |
| Wells Fargo & Company | 154,406 | $1.45M | 0.00% | +111,446+259.4% | Added |
| Avidity Partners Management LP | 150,000 | $1.40M | 0.28% | −775,000−83.8% | Reduced |
| State of Wisconsin Investment Board | 141,113 | $1.32M | 0.00% | +77,006+120.1% | Added |
| Boothbay Fund Management, LLC | 128,845 | $1.21M | 0.04% | +128,845 | New |
| Rhumbline Advisers | 128,732 | $1.21M | 0.00% | +7,922+6.6% | Added |
| HRT Financial LP | 127,111 | $1.19M | 0.01% | −17,923−12.4% | Reduced |
| Russell Investments Group, Ltd. | 126,158 | $1.18M | 0.00% | +8,545+7.3% | Added |
| Balyasny Asset Management LLC | 126,145 | $1.18M | 0.00% | −1,690,864−93.1% | Reduced |
| Rafferty Asset Management, LLC | 126,045 | $1.18M | 0.00% | −45,496−26.5% | Reduced |
| Verition Fund Management LLC | 125,345 | $1.17M | 0.01% | +90,308+257.8% | Added |
| Schroder Investment Management Group | 122,163 | $1.14M | 0.00% | +64,598+112.2% | Added |
| Alliancebernstein L.P. | 117,649 | $1.10M | 0.00% | −51,035−30.3% | Reduced |
| Twinbeech Capital LP | 112,794 | $1.06M | 0.02% | −143,038−55.9% | Reduced |
| Citigroup Inc | 111,752 | $1.05M | 0.00% | −88,898−44.3% | Reduced |
| Yelin Lapidot Holdings Management Ltd. | 108,377 | $1.01M | 0.19% | 00.0% | Unchanged |
| Invesco Ltd. | 105,157 | $984.8K | 0.00% | +28,309+36.8% | Added |
| HSBC Holdings PLC | 106,787 | $966.4K | 0.00% | +56,512+112.4% | Added |
| Polar Asset Management Partners Inc. | 97,113 | $909.5K | 0.02% | −9,515−8.9% | Reduced |
| Ameriprise Financial Inc | 96,674 | $905.4K | 0.00% | +62,446+182.4% | Added |
| Stonepine Capital Management, LLC | 92,900 | $870.0K | 0.86% | +92,900 | New |