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 2026
Institutional positions in Syndax Pharmaceuticals Inc as of Jun 30, 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
- 242
- −2 vs. Q1 2026
- Shares held
- 108.1M
- +8.75M (+8.8%) vs. Q1 2026
- Total value
- $2.36B
- +$43.4M (+1.9%) vs. Q1 2026
- New holders
- 37
- 95 more added
- Sold out
- 39
- 77 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 588,979 | $12.9M | 0.00% | −304,954−34.1% | Reduced |
| Vanguard Fiduciary Trust Co | 633,509 | $13.8M | 0.00% | +32,992+5.5% | Added |
| Charles Schwab Investment Management Inc | 814,303 | $17.8M | 0.00% | +99,150+13.9% | Added |
| Northern Trust Corp | 845,537 | $18.5M | 0.00% | +89,818+11.9% | Added |
| AQR Capital Management LLC | 853,304 | $18.7M | 0.01% | −127,010−13.0% | Reduced |
| Palo Alto Investors LP | 864,986 | $18.9M | 2.61% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 867,831 | $19.0M | 0.03% | −123,138−12.4% | Reduced |
| Parkman Healthcare Partners LLC | 877,256 | $19.2M | 1.97% | −24,255−2.7% | Reduced |
| Loomis Sayles & Co L P | 923,624 | $20.2M | 0.03% | +923,624 | New |
| Sphera Funds Management Ltd. | 1,014,606 | $22.2M | 3.17% | +290,043+40.0% | Added |
| Bank of New York Mellon Corp | 1,040,079 | $22.7M | 0.00% | +35,581+3.5% | Added |
| Algert Global LLC | 1,051,465 | $23.0M | 0.27% | +122,897+13.2% | Added |
| Trails Edge Capital Partners, LP | 1,110,000 | $24.3M | 3.85% | +408,179+58.2% | Added |
| Prosight Management, LP | 1,200,000 | $26.2M | 4.52% | +430,000+55.8% | Added |
| Silverarc Capital Management, LLC | 1,214,390 | $26.5M | 2.95% | +325,403+36.6% | Added |
| Catalio Capital Management, LP | 1,215,698 | $26.6M | 4.99% | +172,028+16.5% | Added |
| D. E. Shaw & Co., Inc. | 1,239,954 | $27.1M | 0.02% | −361,942−22.6% | Reduced |
| Woodline Partners LP | 1,250,760 | $27.3M | 0.08% | 00.0% | Unchanged |
| Aisling Capital Management LP | 1,316,806 | $28.8M | 6.10% | 00.0% | Unchanged |
| MPM Oncology Impact Management LP | 1,333,523 | $29.2M | 1.78% | −7,210−0.5% | Reduced |
| Nuveen, LLC | 1,364,575 | $29.8M | 0.01% | −130,070−8.7% | Reduced |
| OrbiMed Advisors LLC | 1,542,000 | $33.7M | 0.64% | +579,700+60.2% | Added |
| Two Sigma Investments, LP | 1,578,125 | $34.5M | 0.03% | −1,471−0.1% | Reduced |
| Soleus Capital Management, L.P. | 1,628,039 | $35.6M | 1.23% | −98,869−5.7% | Reduced |
| Candriam Luxembourg S.C.A. | 1,696,040 | $37.0M | 0.17% | +770,708+83.3% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,790,173 | $39.1M | 0.04% | +57,632+3.3% | Added |
| Elmind Capital, LP | 1,855,000 | $40.6M | 10.19% | 00.0% | Unchanged |
| UBS Group AG | 1,893,750 | $41.4M | 0.01% | +740,088+64.2% | Added |
| Vanguard Portfolio Management LLC | 1,921,796 | $42.0M | 0.00% | +184,655+10.6% | Added |
| Millennium Management LLC | 2,053,960 | $44.9M | 0.03% | +1,854,436+929.4% | Added |
| Franklin Resources Inc | 2,286,499 | $50.0M | 0.01% | +136,420+6.3% | Added |
| Kingdon Capital Management, L.L.C. | 2,500,000 | $54.6M | 7.37% | 00.0% | Unchanged |
| Hood River Capital Management LLC | 2,564,279 | $56.1M | 0.41% | +209,994+8.9% | Added |
| Geode Capital Management, LLC | 2,584,136 | $56.5M | 0.00% | +427,078+19.8% | Added |
| Eversept Partners, LP | 2,798,210 | $61.2M | 3.33% | −87,412−3.0% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 3,779,900 | $82.6M | 0.86% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 3,927,892 | $85.9M | 0.00% | +105,313+2.8% | Added |
| Bank of America Corp | 4,045,094 | $88.4M | 0.01% | −204,742−4.8% | Reduced |
| State Street Corp | 5,658,424 | $123.7M | 0.00% | +1,228,348+27.7% | Added |
| Goldman Sachs Group Inc | 5,861,265 | $128.1M | 0.01% | +864,478+17.3% | Added |
| Kynam Capital Management, LP | 8,050,959 | $176.0M | 9.73% | 00.0% | Unchanged |
| BlackRock, Inc. | 9,020,006 | $197.2M | 0.00% | +765,580+9.3% | Added |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −1,985,547−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −1,215,743−100.0% | Sold out |
| Integral Health Asset Management, LLC | 0 | $0 | 0.00% | −350,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −335,531−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −229,600−100.0% | Sold out |
| Essex Investment Management Co LLC | 0 | $0 | 0.00% | −198,985−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −117,319−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −105,051−100.0% | Sold out |
| Yelin Lapidot Holdings Management Ltd. | 0 | $0 | 0.00% | −96,297−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −69,059−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −62,330−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −54,274−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −53,149−100.0% | Sold out |
| Clearline Capital LP | 0 | $0 | 0.00% | −43,413−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −41,376−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −36,633−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −21,993−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −18,340−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −17,500−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −13,841−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −13,009−100.0% | Sold out |
| Bleakley Financial Group, LLC | 0 | $0 | 0.00% | −12,488−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −12,129−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −10,954−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −9,775−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −9,563−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −2,892−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,350−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −2,161−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −416−100.0% | Sold out |
| Truvestments Capital LLC | 0 | $0 | 0.00% | −177−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −171−100.0% | Sold out |
| Wealth Preservation Advisors, LLC | 0 | $0 | 0.00% | −104−100.0% | Sold out |
| Basecamp Wealth Advisors LLC | 0 | $0 | 0.00% | −59−100.0% | Sold out |
| Bare Financial Services, Inc | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| JPL Wealth Management, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Keating Financial Advisory Services, Inc. | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |