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, Q4 2025
Institutional positions in Syndax Pharmaceuticals Inc as of Dec 31, 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
- 230
- +7 vs. Q3 2025
- Shares held
- 100.0M
- −831.4K (−0.8%) vs. Q3 2025
- Total value
- $2.10B
- +$549.0M (+35.4%) vs. Q3 2025
- New holders
- 34
- 83 more added
- Sold out
- 27
- 80 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,239,002 | $173.1M | 0.00% | −386,242−4.5% | Reduced |
| Kynam Capital Management, LP | 8,050,959 | $169.2M | 11.01% | −469,041−5.5% | Reduced |
| Vanguard Group Inc | 6,230,334 | $130.9M | 0.00% | +1,091,717+21.2% | Added |
| Goldman Sachs Group Inc | 5,695,375 | $119.7M | 0.02% | +208,941+3.8% | Added |
| Point72 Asset Management, L.P. | 4,882,053 | $102.6M | 0.16% | +627,006+14.7% | Added |
| Bank of America Corp | 4,710,746 | $99.0M | 0.01% | +1,012,993+27.4% | Added |
| State Street Corp | 4,596,552 | $96.6M | 0.00% | +743,003+19.3% | Added |
| Eversept Partners, LP | 3,314,408 | $69.6M | 3.90% | −152,906−4.4% | Reduced |
| Franklin Resources Inc | 2,421,666 | $50.9M | 0.01% | +31,105+1.3% | Added |
| Kingdon Capital Management, L.L.C. | 2,350,000 | $49.4M | 7.56% | −150,000−6.0% | Reduced |
| Hood River Capital Management LLC | 2,316,553 | $48.7M | 0.53% | +2,316,553 | New |
| Soleus Capital Management, L.P. | 2,247,110 | $47.2M | 2.00% | +235,000+11.7% | Added |
| Geode Capital Management, LLC | 2,090,932 | $43.9M | 0.00% | −3990.0% | Reduced |
| Elmind Capital, LP | 1,855,000 | $39.0M | 11.50% | +1,855,000 | New |
| Ensign Peak Advisors, Inc | 1,598,544 | $33.6M | 0.06% | +789,480+97.6% | Added |
| Nuveen, LLC | 1,483,002 | $31.2M | 0.01% | +7,204+0.5% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,375,681 | $28.9M | 0.03% | +139,604+11.3% | Added |
| StemPoint Capital LP | 1,339,379 | $28.1M | 4.83% | −26,826−2.0% | Reduced |
| MPM Oncology Impact Management LP | 1,337,702 | $28.1M | 3.22% | −37,972−2.8% | Reduced |
| Aisling Capital Management LP | 1,316,806 | $27.7M | 5.78% | 00.0% | Unchanged |
| Woodline Partners LP | 1,250,668 | $26.3M | 0.10% | −299,852−19.3% | Reduced |
| Eventide Asset Management, LLC | 1,238,196 | $26.0M | 0.41% | +249,710+25.3% | Added |
| D. E. Shaw & Co., Inc. | 1,219,609 | $25.6M | 0.02% | +142,024+13.2% | Added |
| Catalio Capital Management, LP | 1,196,807 | $25.1M | 4.44% | −417,910−25.9% | Reduced |
| Two Sigma Investments, LP | 1,146,936 | $24.1M | 0.04% | +434,277+60.9% | Added |
| Bank of New York Mellon Corp | 1,094,151 | $23.0M | 0.00% | +41,816+4.0% | Added |
| Morgan Stanley | 1,075,501 | $22.6M | 0.00% | −123,795−10.3% | Reduced |
| Algert Global LLC | 928,088 | $19.5M | 0.30% | −2,678−0.3% | Reduced |
| AQR Capital Management LLC | 925,974 | $19.5M | 0.01% | +367,898+65.9% | Added |
| Candriam Luxembourg S.C.A. | 925,332 | $19.4M | 0.10% | 00.0% | Unchanged |
| Palo Alto Investors LP | 794,507 | $16.7M | 2.32% | +139,577+21.3% | Added |
| Sphera Funds Management Ltd. | 762,563 | $16.0M | 3.35% | +374,847+96.7% | Added |
| Jane Street Group, LLC | 748,920 | $15.7M | 0.02% | +10,654+1.4% | Added |
| Northern Trust Corp | 728,921 | $15.3M | 0.00% | −47,765−6.1% | Reduced |
| Charles Schwab Investment Management Inc | 727,424 | $15.3M | 0.00% | +8,390+1.2% | Added |
| Apis Capital Advisors, LLC | 724,000 | $15.2M | 2.65% | +86,000+13.5% | Added |
| UBS Group AG | 716,219 | $15.0M | 0.00% | −958,294−57.2% | Reduced |
| Qube Research & Technologies Ltd | 688,137 | $14.5M | 0.02% | −956,707−58.2% | Reduced |
| Prosight Management, LP | 665,000 | $14.0M | 2.89% | −338,400−33.7% | Reduced |
| Silverarc Capital Management, LLC | 642,899 | $13.5M | 1.95% | +179,191+38.6% | Added |
| Two Sigma Advisers, LP | 632,752 | $13.3M | 0.03% | +249,700+65.2% | Added |
| Parkman Healthcare Partners LLC | 574,023 | $12.1M | 1.15% | −272,876−32.2% | Reduced |
| ExodusPoint Capital Management, LP | 554,761 | $11.7M | 0.13% | +482,297+665.6% | Added |
| Renaissance Technologies LLC | 544,800 | $11.4M | 0.02% | −315,700−36.7% | Reduced |
| Brevan Howard Capital Management LP | 515,129 | $10.8M | 0.21% | +390,554+313.5% | Added |
| Rhenman & Partners Asset Management AB | 487,000 | $10.2M | 0.96% | −87,000−15.2% | Reduced |
| Knott David M Jr | 415,000 | $8.72M | 4.04% | −13,000−3.0% | Reduced |
| JPMorgan Chase & Co | 378,504 | $7.95M | 0.00% | +124,654+49.1% | Added |
| Standard Life Aberdeen plc | 372,792 | $7.83M | 0.01% | 00.0% | Unchanged |
| Granahan Investment Management Inc | 366,793 | $7.71M | 0.33% | −29,543−7.5% | Reduced |
| Barclays PLC | 314,672 | $6.61M | 0.00% | −33,389−9.6% | Reduced |
| Pale Fire Capital SE | 284,460 | $5.98M | 0.77% | +284,460 | New |
| Ameriprise Financial Inc | 282,587 | $5.94M | 0.00% | +187,144+196.1% | Added |
| DAFNA Capital Management LLC | 277,855 | $5.84M | 1.36% | −222,847−44.5% | Reduced |
| Sector Gamma AS | 252,062 | $5.30M | 1.21% | +41,248+19.6% | Added |
| PFM Health Sciences, LP | 242,967 | $5.10M | 0.52% | −13,521−5.3% | Reduced |
| Capital Fund Management S.A. | 233,871 | $4.91M | 0.05% | −107,323−31.5% | Reduced |
| Canada Pension Plan Investment Board | 229,600 | $4.82M | 0.00% | 00.0% | Unchanged |
| Pinnacle Financial Partners, Inc. | 206,601 | $4.34M | 0.03% | +206,601 | New |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 200,000 | $4.20M | 2.05% | 00.0% | Unchanged |
| Integral Health Asset Management, LLC | 200,000 | $4.20M | 0.21% | +200,000 | New |
| Citadel Advisors LLC | 184,003 | $3.87M | 0.00% | −362,265−66.3% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 183,802 | $3.86M | 0.13% | +129,104+236.0% | Added |
| Nomura Asset Management International Inc. | 180,000 | $3.78M | 0.01% | +180,000 | New |
| Hudson Bay Capital Management LP | 165,000 | $3.47M | 0.02% | −85,000−34.0% | Reduced |
| Jump Financial, LLC | 163,915 | $3.44M | 0.04% | +31,214+23.5% | Added |
| Rafferty Asset Management, LLC | 161,943 | $3.40M | 0.01% | +20,121+14.2% | Added |
| Swiss National Bank | 161,400 | $3.39M | 0.00% | +2,900+1.8% | Added |
| Wells Fargo & Company | 160,850 | $3.38M | 0.00% | +103,934+182.6% | Added |
| Invesco Ltd. | 160,525 | $3.37M | 0.00% | +27,434+20.6% | Added |
| SEI Investments Co | 159,638 | $3.35M | 0.00% | +116,190+267.4% | Added |
| Y-Intercept (Hong Kong) Ltd | 155,916 | $3.28M | 0.07% | +55,065+54.6% | Added |
| UBS Asset Management Americas Inc | 142,407 | $2.99M | 0.00% | +8,146+6.1% | Added |
| Atom Investors LP | 141,666 | $2.98M | 0.24% | +141,666 | New |
| FMR LLC | 140,560 | $2.95M | 0.00% | +135,459+2,655.5% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 137,629 | $2.89M | 0.00% | +137,629 | New |
| Velan Capital Investment Management LP | 130,000 | $2.73M | 1.59% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 129,227 | $2.71M | 0.00% | +83,801+184.5% | Added |
| Panagora Asset Management Inc | 125,099 | $2.63M | 0.01% | −30,217−19.5% | Reduced |
| Voss Capital, LLC | 125,000 | $2.63M | 0.14% | +125,000 | New |
| Rhumbline Advisers | 118,799 | $2.50M | 0.00% | −12,870−9.8% | Reduced |
| Yelin Lapidot Holdings Management Ltd. | 108,377 | $2.28M | 0.46% | 00.0% | Unchanged |
| NEOS Investment Management LLC | 101,553 | $2.13M | 0.01% | −8,513−7.7% | Reduced |
| Tema ETFs LLC | 100,053 | $2.10M | 0.16% | −10,013−9.1% | Reduced |
| Ishara Investments LP | 100,000 | $2.10M | 2.45% | +100,000 | New |
| Ieq Capital, LLC | 99,876 | $2.10M | 0.01% | +44,672+80.9% | Added |
| Torray LLC | 97,802 | $2.05M | 0.29% | +97,802 | New |
| Alliancebernstein L.P. | 94,880 | $1.99M | 0.00% | −31,769−25.1% | Reduced |
| Price T Rowe Associates Inc | 94,829 | $1.99M | 0.00% | +3,695+4.1% | Added |
| Russell Investments Group, Ltd. | 89,639 | $1.88M | 0.00% | +10,101+12.7% | Added |
| Trexquant Investment LP | 87,514 | $1.84M | 0.02% | +87,514 | New |
| Legal & General Group Plc | 78,236 | $1.64M | 0.00% | −6,310−7.5% | Reduced |
| California State Teachers Retirement System | 78,199 | $1.64M | 0.00% | −88−0.1% | Reduced |
| Stifel Financial Corp | 75,914 | $1.59M | 0.00% | −22,427−22.8% | Reduced |
| Dark Forest Capital Management LP | 72,703 | $1.53M | 0.07% | +72,703 | New |
| Deutsche Bank AG | 66,608 | $1.40M | 0.00% | −5,862−8.1% | Reduced |
| Sectoral Asset Management Inc | 61,200 | $1.29M | 1.03% | −18,230−23.0% | Reduced |
| Profund Advisors LLC | 60,038 | $1.26M | 0.04% | +29,221+94.8% | Added |
| Pavaki Capital Management LLC | 60,000 | $1.26M | 0.88% | +60,000 | New |
| Mariner, LLC | 54,987 | $1.15M | 0.00% | +31,547+134.6% | Added |