Syndax PharmaceuticalsSNDX
13F holders, Q3 2025 (September 30)227holders +11
40new positions
27sold out
8famous investors
$15.39avg. 13F price*
At the end of Q3 2025, 227 institutions reported holding Syndax Pharmaceuticals Inc. (SNDX) in their 13F filings, up 11 from Q2 2025. 40 opened new positions and 27 sold out. The largest holders were BlackRock, Inc. ($132.7M), Kynam Capital Management, LP ($131.1M) and Goldman Sachs Group Inc. ($84.4M). 8 famous investors held it, including Steve Cohen (0.2% of Point72 Asset Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Syndax Pharmaceuticals Inc.
- CUSIP
- 87164F105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $62.6M |
| Exits | 27 | $45.9M |
All 13F filers, Q2 2025 → Q3 2025: 15,959,038 shares bought and 16,523,995 shares sold, net −564,957 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 227 holders
| BlackRock, Inc. | 0.00% | Reduce -17.5% | 8,625,244 | $132.7M |
| Kynam Capital Management, LP | 9.76% | No change | 8,520,000 | $131.1M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -5.4% | 5,486,434 | $84.4M |
| Vanguard Group Inc. | 0.00% | Add +2.1% | 5,138,617 | $79.1M |
| Point72 Asset Management | 0.15% | Add +100.0% | 4,255,047 | $65.5M |
| State Street Corp. | 0.00% | Add +11.9% | 3,853,549 | $59.3M |
| Bank of America Corp. | 0.00% | Reduce -3.7% | 3,697,753 | $56.9M |
| Eversept Partners, LP | 4.09% | Reduce -14.7% | 3,467,314 | $53.3M |
| Adage Capital Partners Gp, L.L.C. | 0.08% | Add +131.2% | 3,311,963 | $51.0M |
| Kingdon Capital Management, L.L.C. | 6.03% | Add +19.1% | 2,500,000 | $38.5M |
| Franklin Resources Inc. | 0.01% | Add +1.3% | 2,390,561 | $36.8M |
| Geode Capital Management, LLC | 0.00% | Add +2.0% | 2,091,331 | $32.2M |
| Soleus Capital Management, L.P. | 1.65% | Add +84.2% | 2,012,110 | $31.0M |
| Assenagon Asset Management S.A. | 0.04% | Reduce -12.5% | 1,784,139 | $27.4M |
| UBS Group AG | 0.01% | Add +16.7% | 1,674,513 | $25.8M |
| Qube Research & Technologies Ltd | 0.04% | Reduce -1.3% | 1,644,844 | $25.3M |
| Catalio Capital Management, LP | 4.59% | Reduce -23.3% | 1,614,717 | $24.8M |
| Woodline Partners LP | 0.11% | Reduce -18.1% | 1,550,520 | $23.9M |
| Nuveen, LLC | 0.01% | Add +454.7% | 1,475,798 | $22.7M |
| MPM Bioimpact LLC | 3.46% | New | 1,375,674 | $21.2M |
| Stempoint Capital LP | 4.24% | Reduce -42.4% | 1,366,205 | $21.0M |
| Aisling Capital Management LP | 4.44% | No change | 1,316,806 | $20.3M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.05% | Reduce -14.5% | 1,236,077 | $19.0M |
| Morgan Stanley | 0.00% | Add +41.2% | 1,199,296 | $18.5M |
| D. E. Shaw & Co. | 0.01% | Add +67.2% | 1,077,585 | $16.6M |
| Bank of New York Mellon Corp | 0.00% | Add +343.8% | 1,052,335 | $16.2M |
| Millennium Management | 0.01% | Reduce -34.5% | 1,046,456 | $16.1M |
| Prosight Management, LP | 3.71% | Reduce -7.1% | 1,003,400 | $15.4M |
| Eventide Asset Management, LLC | 0.25% | Reduce -30.1% | 988,486 | $15.2M |
| Algert Global LLC | 0.24% | Reduce -8.9% | 930,766 | $14.3M |
| Candriam S.C.A. | 0.07% | Add +37.1% | 925,332 | $14.2M |
| Renaissance Technologies | 0.02% | Add +2.7% | 860,500 | $13.2M |
| Parkman Healthcare Partners LLC | 1.43% | Reduce -2.4% | 846,899 | $13.0M |
| Ensign Peak Advisors, Inc | 0.02% | Add +17.4% | 809,064 | $12.4M |
| Northern Trust Corp. | 0.00% | Add +0.8% | 776,686 | $11.9M |
| Jane Street Group, LLC | 0.01% | Add +340.8% | 738,266 | $11.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +0.9% | 719,034 | $11.1M |
| Two Sigma Investments, LP | 0.02% | Add +27.9% | 712,659 | $11.0M |
| Palo Alto Investors LP | 1.86% | Add +47.4% | 654,930 | $10.1M |
| Apis Capital Advisors, LLC | 2.17% | New | 638,000 | $9.8M |
| BNP Paribas Financial Markets | 0.01% | Add +20.0% | 599,871 | $9.2M |
| Rhenman & Partners Asset Management AB | 0.98% | No change | 574,000 | $8.8M |
| AQR Capital Management | 0.01% | Add +142.0% | 558,076 | $8.6M |
| Citadel Advisors | 0.01% | Reduce -14.7% | 546,268 | $8.4M |
| DAFNA Capital Management LLC | 1.93% | Reduce -7.9% | 500,702 | $7.7M |
| Silverarc Capital Management, LLC | 1.03% | Add +15.1% | 463,708 | $7.1M |
| Knott David M Jr | 2.76% | Add +21.3% | 428,000 | $6.6M |
| Granahan Investment Management, LLC | 0.25% | Reduce -60.0% | 396,336 | $6.1M |
| Sphera Funds Management LTD. | 1.41% | Reduce -75.3% | 387,716 | $6.0M |
| Zimmer Partners, LP | 0.14% | Reduce -36.8% | 383,100 | $5.9M |
| Two Sigma Advisers, LP | 0.01% | Reduce -2.4% | 383,052 | $5.9M |
| Aberdeen Group plc | 0.01% | Add +22.9% | 372,792 | $5.7M |
| Barclays PLC | 0.00% | Reduce -9.1% | 348,061 | $5.4M |
| Capital Fund Management S.A. | 0.05% | Add +91.4% | 341,194 | $5.2M |
| Ikarian Capital, LLC | 1.04% | New | 333,733 | $5.1M |
| Walleye Capital LLC | 0.04% | Add +31.7% | 297,658 | $4.6M |
| Boothbay Fund Management, LLC | 0.11% | Add +103.3% | 261,933 | $4.0M |
| PFM Health Sciences, LP | 0.34% | New | 256,488 | $3.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -7.0% | 253,850 | $3.9M |
| Hudson Bay Capital Management LP | 0.03% | Reduce -43.6% | 250,000 | $3.8M |
| Cubist Systematic Strategies, LLC | 0.05% | Add +40.2% | 246,779 | $3.8M |
| Marshall Wace, LLP | 0.00% | Add +0.8% | 233,973 | $3.6M |
| Canada Pension Plan Investment Board | 0.00% | New | 229,600 | $3.5M |
| Royal Bank of Canada | 0.00% | Reduce -35.1% | 228,000 | $3.5M |
| Sector Gamma As | 0.80% | New | 210,814 | $3.2M |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 1.82% | No change | 200,000 | $3.1M |
| Tang Capital Management LLC | 0.12% | No change | 200,000 | $3.1M |
| Macquarie Group Ltd. | 0.00% | No change | 180,000 | $2.8M |
| Engineers Gate Manager LP | 0.03% | Add +0.1% | 179,366 | $2.8M |
| Man Group plc | 0.01% | Reduce -23.3% | 174,951 | $2.7M |
| Swiss National Bank | 0.00% | Reduce -3.5% | 158,500 | $2.4M |
| Panagora Asset Management Inc. | 0.01% | New | 155,316 | $2.4M |
| Keybank National Association | 0.01% | New | 150,000 | $2.3M |
| HRT Financial LP | 0.01% | Add +16.5% | 148,139 | $2.3M |
| Rafferty Asset Management, LLC | 0.01% | Add +12.5% | 141,822 | $2.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -47.6% | 134,261 | $2.1M |
| Invesco Ltd. | 0.00% | Add +26.6% | 133,091 | $2.0M |
| Jump Financial, LLC | 0.03% | Reduce -65.2% | 132,701 | $2.0M |
| Schonfeld Strategic Advisors LLC | 0.01% | Reduce -50.1% | 132,123 | $2.0M |
| Rhumbline Advisers | 0.00% | Add +2.3% | 131,669 | $2.0M |
| Velan Capital Investment Management LP | 1.88% | New | 130,000 | $2.0M |
| Alliancebernstein L.P. | 0.00% | Add +7.7% | 126,649 | $1.9M |
| Schroder Investment Management Group | 0.00% | Add +1.0% | 123,404 | $1.9M |
| Brevan Howard Capital Management LP | 0.03% | Add +341.3% | 124,575 | $1.9M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -75.1% | 121,467 | $1.9M |
| Exome Asset Management LLC | 1.20% | Reduce -61.8% | 117,783 | $1.8M |
| Tema ETFs LLC | 0.14% | Add +27.5% | 110,066 | $1.7M |
| NEOS Investment Management LLC | 0.01% | Add +27.5% | 110,066 | $1.7M |
| Yelin Lapidot Holdings Management Ltd. | 0.35% | No change | 108,377 | $1.7M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | Reduce -63.6% | 100,851 | $1.6M |
| SummitTX Capital, L.P. | 0.06% | Reduce -52.4% | 100,586 | $1.5M |
| Stifel Financial Corp. | 0.00% | Add +10.4% | 98,341 | $1.5M |
| Ameriprise Financial Inc. | 0.00% | Reduce -1.3% | 95,443 | $1.5M |
| T. Rowe Price Associates Inc. | 0.00% | Add +20.9% | 91,134 | $1.4M |
| Legal & General Group Plc | 0.00% | Reduce -0.0% | 84,546 | $1.3M |
| Voya Investment Management LLC | 0.00% | Reduce -8.4% | 83,207 | $1.3M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -37.0% | 79,538 | $1.2M |
| Sectoral Asset Management Inc. | 0.75% | Add +25.5% | 79,430 | $1.2M |
| California State Teachers Retirement System | 0.00% | Add +8.7% | 78,287 | $1.2M |
| Deutsche Bank AG | 0.00% | Add +11.9% | 72,470 | $1.1M |
"% of holder's portfolio" is SNDX's weight in each manager's 13F, not the share of Syndax Pharmaceuticals Inc. the manager owns.