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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,254,426 | $192.8M | 0.00% | +15,424+0.2% | Added |
| Kynam Capital Management, LP | 8,050,959 | $188.1M | 11.94% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 4,996,787 | $116.7M | 0.02% | −698,588−12.3% | Reduced |
| State Street Corp | 4,430,076 | $103.5M | 0.00% | −166,476−3.6% | Reduced |
| Bank of America Corp | 4,249,836 | $99.3M | 0.01% | −460,910−9.8% | Reduced |
| Vanguard Capital Management LLC | 3,822,579 | $89.3M | 0.00% | +3,822,579 | New |
| Deerfield Management Company, L.P. (Series C) | 3,779,900 | $88.3M | 1.04% | +3,779,900 | New |
| Eversept Partners, LP | 2,885,622 | $67.4M | 4.44% | −428,786−12.9% | Reduced |
| Kingdon Capital Management, L.L.C. | 2,500,000 | $58.4M | 9.78% | +150,000+6.4% | Added |
| Hood River Capital Management LLC | 2,354,285 | $55.0M | 0.55% | +37,732+1.6% | Added |
| Geode Capital Management, LLC | 2,157,058 | $50.4M | 0.00% | +66,126+3.2% | Added |
| Franklin Resources Inc | 2,150,079 | $50.2M | 0.01% | −271,587−11.2% | Reduced |
| Point72 Asset Management, L.P. | 1,985,547 | $46.4M | 0.08% | −2,896,506−59.3% | Reduced |
| Elmind Capital, LP | 1,855,000 | $43.3M | 12.30% | 00.0% | Unchanged |
| Vanguard Portfolio Management LLC | 1,737,141 | $40.6M | 0.00% | +1,737,141 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,732,541 | $40.5M | 0.05% | +356,860+25.9% | Added |
| Soleus Capital Management, L.P. | 1,726,908 | $40.3M | 1.63% | −520,202−23.1% | Reduced |
| D. E. Shaw & Co., Inc. | 1,601,896 | $37.4M | 0.03% | +382,287+31.3% | Added |
| Two Sigma Investments, LP | 1,579,596 | $36.9M | 0.03% | +432,660+37.7% | Added |
| Nuveen, LLC | 1,494,645 | $34.9M | 0.01% | +11,643+0.8% | Added |
| MPM Oncology Impact Management LP | 1,340,733 | $31.3M | 2.42% | +3,031+0.2% | Added |
| Aisling Capital Management LP | 1,316,806 | $30.8M | 6.46% | 00.0% | Unchanged |
| Woodline Partners LP | 1,250,760 | $29.2M | 0.11% | +920.0% | Added |
| StemPoint Capital LP | 1,215,743 | $28.4M | 5.46% | −123,636−9.2% | Reduced |
| UBS Group AG | 1,153,662 | $26.9M | 0.00% | +437,443+61.1% | Added |
| Catalio Capital Management, LP | 1,043,670 | $24.4M | 5.09% | −153,137−12.8% | Reduced |
| Bank of New York Mellon Corp | 1,004,498 | $23.5M | 0.00% | −89,653−8.2% | Reduced |
| Ensign Peak Advisors, Inc | 990,969 | $23.1M | 0.04% | −607,575−38.0% | Reduced |
| AQR Capital Management LLC | 980,314 | $22.9M | 0.01% | +54,340+5.9% | Added |
| OrbiMed Advisors LLC | 962,300 | $22.5M | 0.51% | +962,300 | New |
| Algert Global LLC | 928,568 | $21.7M | 0.33% | +480+0.1% | Added |
| Candriam Luxembourg S.C.A. | 925,332 | $21.6M | 0.11% | 00.0% | Unchanged |
| Parkman Healthcare Partners LLC | 901,511 | $21.1M | 2.18% | +327,488+57.1% | Added |
| Morgan Stanley | 893,933 | $20.9M | 0.00% | −181,568−16.9% | Reduced |
| Silverarc Capital Management, LLC | 888,987 | $20.8M | 2.45% | +246,088+38.3% | Added |
| Palo Alto Investors LP | 864,986 | $20.2M | 3.09% | +70,479+8.9% | Added |
| Prosight Management, LP | 770,000 | $18.0M | 2.95% | +105,000+15.8% | Added |
| Northern Trust Corp | 755,719 | $17.7M | 0.00% | +26,798+3.7% | Added |
| Sphera Funds Management Ltd. | 724,563 | $16.9M | 2.91% | −38,000−5.0% | Reduced |
| Charles Schwab Investment Management Inc | 715,153 | $16.7M | 0.00% | −12,271−1.7% | Reduced |
| Trails Edge Capital Partners, LP | 701,821 | $16.4M | 3.86% | +701,821 | New |
| Citadel Advisors LLC | 630,942 | $14.7M | 0.01% | +446,939+242.9% | Added |
| Vanguard Fiduciary Trust Co | 600,517 | $14.0M | 0.00% | +600,517 | New |
| Apis Capital Advisors, LLC | 550,000 | $12.8M | 1.98% | −174,000−24.0% | Reduced |
| Renaissance Technologies LLC | 498,200 | $11.6M | 0.02% | −46,600−8.6% | Reduced |
| Knott David M Jr | 422,000 | $9.86M | 5.87% | +7,000+1.7% | Added |
| Walleye Capital LLC | 384,973 | $8.99M | 0.06% | +360,768+1,490.5% | Added |
| Rhenman & Partners Asset Management AB | 379,250 | $8.86M | 1.09% | −107,750−22.1% | Reduced |
| Integral Health Asset Management, LLC | 350,000 | $8.18M | 0.43% | +150,000+75.0% | Added |
| Jane Street Group, LLC | 335,531 | $7.84M | 0.01% | −413,389−55.2% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 331,665 | $7.75M | 0.01% | +194,036+141.0% | Added |
| Granahan Investment Management Inc | 306,321 | $7.16M | 0.35% | −60,472−16.5% | Reduced |
| Standard Life Aberdeen plc | 286,969 | $6.70M | 0.01% | −85,823−23.0% | Reduced |
| Sector Gamma AS | 286,007 | $6.68M | 1.58% | +33,945+13.5% | Added |
| Pale Fire Capital SE | 284,460 | $6.64M | 0.58% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 284,245 | $6.64M | 0.00% | +1,658+0.6% | Added |
| Schonfeld Strategic Advisors LLC | 260,626 | $6.09M | 0.05% | +247,526+1,889.5% | Added |
| Alliancebernstein L.P. | 288,567 | $6.06M | 0.00% | +193,687+204.1% | Added |
| Invesco Ltd. | 252,761 | $5.90M | 0.00% | +92,236+57.5% | Added |
| Panagora Asset Management Inc | 249,407 | $5.83M | 0.02% | +124,308+99.4% | Added |
| JPMorgan Chase & Co | 258,519 | $5.81M | 0.00% | −119,985−31.7% | Reduced |
| PFM Health Sciences, LP | 245,021 | $5.72M | 0.60% | +2,054+0.8% | Added |
| Canada Pension Plan Investment Board | 229,600 | $5.36M | 0.00% | 00.0% | Unchanged |
| SEI Investments Co | 217,600 | $5.08M | 0.00% | +57,962+36.3% | Added |
| DAFNA Capital Management LLC | 217,355 | $5.08M | 1.16% | −60,500−21.8% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 214,807 | $5.02M | 0.17% | +31,005+16.9% | Added |
| Brevan Howard Capital Management LP | 204,845 | $4.79M | 0.05% | −310,284−60.2% | Reduced |
| Pinnacle Financial Partners, Inc. | 202,282 | $4.73M | 0.04% | −4,319−2.1% | Reduced |
| Trexquant Investment LP | 201,777 | $4.71M | 0.03% | +114,263+130.6% | Added |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 200,000 | $4.67M | 1.78% | 00.0% | Unchanged |
| Millennium Management LLC | 199,524 | $4.66M | 0.00% | +147,587+284.2% | Added |
| Essex Investment Management Co LLC | 198,985 | $4.65M | 0.74% | +198,985 | New |
| Susquehanna International Group, LLP | 196,621 | $4.59M | 0.01% | +178,468+983.1% | Added |
| Man Group plc | 182,016 | $4.25M | 0.01% | +137,378+307.8% | Added |
| Squarepoint Ops LLC | 181,552 | $4.24M | 0.01% | +161,738+816.3% | Added |
| Nomura Asset Management International Inc. | 180,000 | $4.21M | 0.01% | 00.0% | Unchanged |
| FMR LLC | 173,993 | $4.06M | 0.00% | +33,433+23.8% | Added |
| Swiss National Bank | 161,400 | $3.77M | 0.00% | 00.0% | Unchanged |
| Atom Investors LP | 155,965 | $3.64M | 0.26% | +14,299+10.1% | Added |
| UBS Asset Management Americas Inc | 149,797 | $3.50M | 0.00% | +7,390+5.2% | Added |
| Capital Fund Management S.A. | 145,566 | $3.40M | 0.03% | −88,305−37.8% | Reduced |
| Rafferty Asset Management, LLC | 124,723 | $2.91M | 0.01% | −37,220−23.0% | Reduced |
| Wellington Management Group LLP | 123,586 | $2.89M | 0.00% | +87,956+246.9% | Added |
| Cinctive Capital Management LP | 117,319 | $2.74M | 0.18% | +117,319 | New |
| Rhumbline Advisers | 114,762 | $2.68M | 0.00% | −4,037−3.4% | Reduced |
| Ieq Capital, LLC | 109,623 | $2.56M | 0.01% | +9,747+9.8% | Added |
| Price T Rowe Associates Inc | 107,133 | $2.50M | 0.00% | +12,304+13.0% | Added |
| ExodusPoint Capital Management, LP | 105,051 | $2.45M | 0.02% | −449,710−81.1% | Reduced |
| Torray LLC | 104,868 | $2.45M | 0.36% | +7,066+7.2% | Added |
| California State Teachers Retirement System | 103,009 | $2.41M | 0.00% | +24,810+31.7% | Added |
| Russell Investments Group, Ltd. | 101,492 | $2.37M | 0.00% | +11,853+13.2% | Added |
| Yelin Lapidot Holdings Management Ltd. | 96,297 | $2.25M | 0.47% | −12,080−11.1% | Reduced |
| Twinbeech Capital LP | 90,006 | $2.10M | 0.22% | +37,106+70.1% | Added |
| HRT Financial LP | 88,904 | $2.08M | 0.01% | +88,904 | New |
| Wells Fargo & Company | 80,394 | $1.88M | 0.00% | −80,456−50.0% | Reduced |
| XTX Topco Ltd | 79,007 | $1.85M | 0.03% | +60,531+327.6% | Added |
| Deutsche Bank AG | 74,983 | $1.75M | 0.00% | +8,375+12.6% | Added |
| Mariner, LLC | 73,199 | $1.71M | 0.00% | +18,212+33.1% | Added |
| Aquatic Capital Management LLC | 69,083 | $1.61M | 0.05% | +67,040+3,281.4% | Added |
| Tudor Investment Corp Et Al | 69,059 | $1.61M | 0.01% | +21,638+45.6% | Added |