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, Q3 2021
Institutional positions in Syndax Pharmaceuticals Inc as of Sep 30, 2021. 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
- 123
- +8 vs. Q2 2021
- Shares held
- 49.1M
- −1.13M (−2.2%) vs. Q2 2021
- Total value
- $938.0M
- +$76.1M (+8.8%) vs. Q2 2021
- New holders
- 20
- 38 more added
- Sold out
- 12
- 40 more reduced
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Syndax Pharmaceuticals Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ghost Tree Capital, LLC | 575,000 | $11.0M | 3.62% | −300,000−34.3% | Reduced |
| Woodline Partners LP | 581,308 | $11.1M | 0.18% | +373,496+179.7% | Added |
| Dimensional Fund Advisors LP | 648,026 | $12.4M | 0.00% | +146,228+29.1% | Added |
| Geode Capital Management, LLC | 733,220 | $14.0M | 0.00% | +26,278+3.7% | Added |
| Sphera Funds Management Ltd. | 750,603 | $14.3M | 1.42% | +203,416+37.2% | Added |
| Aisling Capital Management LP | 1,025,000 | $19.6M | 3.91% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 1,135,900 | $21.7M | 1.13% | +50,000+4.6% | Added |
| Eventide Asset Management, LLC | 1,165,000 | $22.3M | 0.29% | +462,652+65.9% | Added |
| Frazier Management LLC | 1,188,135 | $22.7M | 1.82% | 00.0% | Unchanged |
| Casdin Capital, LLC | 1,200,000 | $22.9M | 0.57% | 00.0% | Unchanged |
| HealthCor Management, L.P. | 1,214,670 | $23.2M | 1.01% | −536,672−30.6% | Reduced |
| Avoro Capital Advisors LLC | 1,545,000 | $29.5M | 0.46% | −1,455,000−48.5% | Reduced |
| Wellington Management Group LLP | 1,676,859 | $32.0M | 0.01% | +40,928+2.5% | Added |
| Citadel Advisors LLC | 1,843,357 | $35.2M | 0.04% | −115,274−5.9% | Reduced |
| PFM Health Sciences, LP | 1,856,738 | $35.5M | 1.15% | −288,143−13.4% | Reduced |
| State Street Corp | 2,103,447 | $40.2M | 0.00% | −1,066,985−33.7% | Reduced |
| Vanguard Group Inc | 2,169,406 | $41.5M | 0.00% | +60,658+2.9% | Added |
| Boxer Capital, LLC | 2,287,782 | $43.7M | 1.53% | 00.0% | Unchanged |
| BVF Inc | 2,486,429 | $47.5M | 1.85% | 00.0% | Unchanged |
| Nantahala Capital Management, LLC | 2,657,159 | $50.8M | 3.00% | +63,822+2.5% | Added |
| Adage Capital Partners GP, L.L.C. | 2,866,272 | $54.8M | 0.11% | +375,000+15.1% | Added |
| BlackRock Inc. | 3,526,298 | $67.4M | 0.00% | +6,404+0.2% | Added |
| Avidity Partners Management LP | 4,823,400 | $92.2M | 2.35% | +208,400+4.5% | Added |
| Putnam Investments LLC | 0 | $0 | 0.00% | −205,040−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −117,000−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −34,727−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −32,575−100.0% | Sold out |
| Dumac, Inc. | 0 | $0 | 0.00% | −21,240−100.0% | Sold out |
| Inscription Capital, LLC | 0 | $0 | 0.00% | −20,500−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −19,629−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −16,609−100.0% | Sold out |
| Quantitative Systematic Strategies LLC | 0 | $0 | 0.00% | −13,221−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −10,893−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −6,808−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −1,515−100.0% | Sold out |