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
- +7.58M (+7.5%) vs. Q1 2026
- Total value
- $2.36B
- +$15.9M (+0.7%) vs. Q1 2026
- New holders
- 37
- 96 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 | $2.35B |
| Q4 2025 | 230 | $2.10B |
| Q3 2025 | 228 | $1.56B |
| Q2 2025 | 217 | $955.9M |
| Q1 2025 | 219 | $1.26B |
| Q4 2024 | 216 | $1.30B |
| Q3 2024 | 210 | $1.73B |
| Q2 2024 | 196 | $1.82B |
| Q1 2024 | 189 | $2.25B |
| Q4 2023 | 177 | $1.99B |
| Q3 2023 | 175 | $1.05B |
| Q2 2023 | 166 | $1.49B |
| Q1 2023 | 163 | $1.55B |
| Q4 2022 | 160 | $1.82B |
| Q3 2022 | 139 | $1.44B |
| Q2 2022 | 121 | $1.06B |
| Q1 2022 | 136 | $948.4M |
| Q4 2021 | 132 | $1.17B |
| 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,020,006 | $197.2M | 0.00% | +765,580+9.3% | Added |
| Kynam Capital Management, LP | 8,050,959 | $176.0M | 9.73% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 5,861,265 | $128.1M | 0.01% | +864,478+17.3% | Added |
| State Street Corp | 5,658,424 | $123.7M | 0.00% | +1,228,348+27.7% | Added |
| Bank of America Corp | 4,045,094 | $88.4M | 0.01% | −204,742−4.8% | Reduced |
| Vanguard Capital Management LLC | 3,927,892 | $85.9M | 0.00% | +105,313+2.8% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,779,900 | $82.6M | 0.86% | 00.0% | Unchanged |
| Eversept Partners, LP | 2,798,210 | $61.2M | 3.33% | −87,412−3.0% | Reduced |
| Geode Capital Management, LLC | 2,584,136 | $56.5M | 0.00% | +427,078+19.8% | Added |
| Hood River Capital Management LLC | 2,564,279 | $56.1M | 0.41% | +209,994+8.9% | Added |
| Kingdon Capital Management, L.L.C. | 2,500,000 | $54.6M | 7.37% | 00.0% | Unchanged |
| Franklin Resources Inc | 2,286,499 | $50.0M | 0.01% | +136,420+6.3% | Added |
| Millennium Management LLC | 2,053,960 | $44.9M | 0.03% | +1,854,436+929.4% | Added |
| Vanguard Portfolio Management LLC | 1,921,796 | $42.0M | 0.00% | +184,655+10.6% | Added |
| UBS Group AG | 1,893,750 | $41.4M | 0.01% | +740,088+64.2% | Added |
| Elmind Capital, LP | 1,855,000 | $40.6M | 10.19% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,790,173 | $39.1M | 0.04% | +57,632+3.3% | Added |
| Candriam Luxembourg S.C.A. | 1,696,040 | $37.0M | 0.17% | +770,708+83.3% | Added |
| Soleus Capital Management, L.P. | 1,628,039 | $35.6M | 1.23% | −98,869−5.7% | Reduced |
| Two Sigma Investments, LP | 1,578,125 | $34.5M | 0.03% | −1,471−0.1% | Reduced |
| OrbiMed Advisors LLC | 1,542,000 | $33.7M | 0.64% | +579,700+60.2% | Added |
| Nuveen, LLC | 1,364,575 | $29.8M | 0.01% | −130,070−8.7% | Reduced |
| MPM Oncology Impact Management LP | 1,333,523 | $29.2M | 1.78% | −7,210−0.5% | Reduced |
| Aisling Capital Management LP | 1,316,806 | $28.8M | 6.10% | 00.0% | Unchanged |
| Woodline Partners LP | 1,250,760 | $27.3M | 0.08% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 1,239,954 | $27.1M | 0.02% | −361,942−22.6% | Reduced |
| Catalio Capital Management, LP | 1,215,698 | $26.6M | 4.99% | +172,028+16.5% | Added |
| Silverarc Capital Management, LLC | 1,214,390 | $26.5M | 2.95% | +325,403+36.6% | Added |
| Prosight Management, LP | 1,200,000 | $26.2M | 4.52% | +430,000+55.8% | Added |
| Trails Edge Capital Partners, LP | 1,110,000 | $24.3M | 3.85% | +408,179+58.2% | Added |
| Algert Global LLC | 1,051,465 | $23.0M | 0.27% | +122,897+13.2% | Added |
| Bank of New York Mellon Corp | 1,040,079 | $22.7M | 0.00% | +35,581+3.5% | Added |
| Sphera Funds Management Ltd. | 1,014,606 | $22.2M | 3.17% | +290,043+40.0% | Added |
| Loomis Sayles & Co L P | 923,624 | $20.2M | 0.03% | +923,624 | New |
| Parkman Healthcare Partners LLC | 877,256 | $19.2M | 1.97% | −24,255−2.7% | Reduced |
| Ensign Peak Advisors, Inc | 867,831 | $19.0M | 0.03% | −123,138−12.4% | Reduced |
| Palo Alto Investors LP | 864,986 | $18.9M | 2.61% | 00.0% | Unchanged |
| AQR Capital Management LLC | 853,304 | $18.7M | 0.01% | −127,010−13.0% | Reduced |
| Northern Trust Corp | 845,537 | $18.5M | 0.00% | +89,818+11.9% | Added |
| Charles Schwab Investment Management Inc | 814,303 | $17.8M | 0.00% | +99,150+13.9% | Added |
| Vanguard Fiduciary Trust Co | 633,509 | $13.8M | 0.00% | +32,992+5.5% | Added |
| Morgan Stanley | 588,979 | $12.9M | 0.00% | −304,954−34.1% | Reduced |
| Rhenman & Partners Asset Management AB | 560,250 | $12.2M | 1.16% | +181,000+47.7% | Added |
| Apis Capital Advisors, LLC | 556,000 | $12.2M | 1.18% | +6,000+1.1% | Added |
| Panagora Asset Management Inc | 546,517 | $11.9M | 0.04% | +297,110+119.1% | Added |
| Qube Research & Technologies Ltd | 477,182 | $10.4M | 0.01% | +441,135+1,223.8% | Added |
| First Trust Advisors LP | 456,700 | $9.98M | 0.01% | +456,700 | New |
| Susquehanna International Group, LLP | 454,101 | $9.93M | 0.01% | +257,480+131.0% | Added |
| Granahan Investment Management Inc | 446,988 | $9.77M | 0.35% | +140,667+45.9% | Added |
| Knott David M Jr | 437,245 | $9.56M | 5.05% | +15,245+3.6% | Added |
| Jump Financial, LLC | 402,846 | $8.81M | 0.08% | +402,846 | New |
| Standard Life Aberdeen plc | 372,766 | $8.15M | 0.01% | +85,797+29.9% | Added |
| Squarepoint Ops LLC | 370,317 | $8.10M | 0.02% | +188,765+104.0% | Added |
| Jupiter Asset Management Ltd | 366,568 | $8.01M | 0.04% | +366,568 | New |
| HRT Financial LP | 363,147 | $7.94M | 0.01% | +274,243+308.5% | Added |
| Ameriprise Financial Inc | 346,852 | $7.58M | 0.00% | +62,607+22.0% | Added |
| Hennion & Walsh Asset Management, Inc. | 342,883 | $7.50M | 0.21% | +128,076+59.6% | Added |
| Jones Hill Capital LP | 340,000 | $7.43M | 1.58% | +340,000 | New |
| DAFNA Capital Management LLC | 335,255 | $7.33M | 1.40% | +117,900+54.2% | Added |
| Envestnet Asset Management Inc | 327,617 | $7.16M | 0.00% | +285,745+682.4% | Added |
| Renaissance Technologies LLC | 321,600 | $7.03M | 0.01% | −176,600−35.4% | Reduced |
| Brevan Howard Capital Management LP | 309,065 | $6.76M | 0.09% | +104,220+50.9% | Added |
| Alyeska Investment Group, L.P. | 308,507 | $6.74M | 0.02% | +308,507 | New |
| Verition Fund Management LLC | 304,939 | $6.67M | 0.05% | +304,939 | New |
| Mackenzie Financial Corp | 280,079 | $6.12M | 0.01% | +280,079 | New |
| Citadel Advisors LLC | 258,278 | $5.65M | 0.00% | −372,664−59.1% | Reduced |
| Trexquant Investment LP | 255,949 | $5.60M | 0.03% | +54,172+26.8% | Added |
| Sector Gamma AS | 241,739 | $5.28M | 1.15% | −44,268−15.5% | Reduced |
| Schonfeld Strategic Advisors LLC | 236,717 | $5.17M | 0.03% | −23,909−9.2% | Reduced |
| JPMorgan Chase & Co | 231,446 | $5.13M | 0.00% | −27,073−10.5% | Reduced |
| Pinnacle Financial Partners, Inc. | 217,173 | $4.75M | 0.03% | +14,891+7.4% | Added |
| Man Group plc | 213,703 | $4.67M | 0.01% | +31,687+17.4% | Added |
| Y-Intercept (Hong Kong) Ltd | 212,713 | $4.65M | 0.09% | +212,713 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 207,250 | $4.53M | 0.01% | −124,415−37.5% | Reduced |
| Pictet Asset Management Holding SA | 207,936 | $4.53M | 0.00% | +195,580+1,582.9% | Added |
| Vienna Powszechne Towarzystwo Emerytalne S.A. Vienna Insurance Group | 200,000 | $4.37M | 1.15% | 00.0% | Unchanged |
| Citigroup Inc | 195,703 | $4.28M | 0.00% | +175,371+862.5% | Added |
| SEI Investments Co | 193,134 | $4.22M | 0.00% | −24,466−11.2% | Reduced |
| Nomura Asset Management International Inc. | 180,000 | $3.94M | 0.01% | 00.0% | Unchanged |
| Swiss National Bank | 168,100 | $3.67M | 0.00% | +6,700+4.2% | Added |
| Atom Investors LP | 162,524 | $3.55M | 0.32% | +6,559+4.2% | Added |
| UBS Asset Management Americas Inc | 161,323 | $3.53M | 0.00% | +11,526+7.7% | Added |
| SummitTX Capital, L.P. | 140,797 | $3.08M | 0.08% | +74,457+112.2% | Added |
| Invesco Ltd. | 138,060 | $3.02M | 0.00% | −114,701−45.4% | Reduced |
| Russell Investments Group, Ltd. | 135,012 | $2.95M | 0.00% | +33,520+33.0% | Added |
| Torray LLC | 133,835 | $2.93M | 0.39% | +28,967+27.6% | Added |
| Rhumbline Advisers | 132,358 | $2.89M | 0.00% | +17,596+15.3% | Added |
| Wells Fargo & Company | 130,054 | $2.84M | 0.00% | +49,660+61.8% | Added |
| Price T Rowe Associates Inc | 128,199 | $2.80M | 0.00% | +21,066+19.7% | Added |
| Pale Fire Capital SE | 125,550 | $2.74M | 0.20% | −158,910−55.9% | Reduced |
| Capital Fund Management S.A. | 125,091 | $2.73M | 0.02% | −20,475−14.1% | Reduced |
| Wellington Management Group LLP | 124,241 | $2.72M | 0.00% | +655+0.5% | Added |
| PFM Health Sciences, LP | 118,422 | $2.59M | 0.22% | −126,599−51.7% | Reduced |
| Schroder Investment Management Group | 115,208 | $2.51M | 0.00% | +115,208 | New |
| Alliancebernstein L.P. | 106,040 | $2.48M | 0.00% | −182,527−63.3% | Reduced |
| Rafferty Asset Management, LLC | 97,787 | $2.14M | 0.00% | −26,936−21.6% | Reduced |
| Deutsche Bank AG | 95,315 | $2.08M | 0.00% | +20,332+27.1% | Added |
| California State Teachers Retirement System | 93,481 | $2.04M | 0.00% | −9,528−9.2% | Reduced |
| Hussman Strategic Advisors, Inc. | 84,000 | $1.84M | 0.42% | +84,000 | New |
| Assenagon Asset Management S.A. | 83,474 | $1.82M | 0.00% | +41,737+100.0% | Added |