Syndax Pharmaceuticals Ownership | Who Owns Syndax Pharmaceuticals?
Syndax Pharmaceuticals Ownership Summary
Syndax Pharmaceuticals is owned by 125.60% institutional investors, 1.69% insiders. Blackrock funding, inc. /de is the largest institutional shareholder, holding 10.41% of SNDX shares. State Street® SPDR® S&P® Biotech ETF is the top mutual fund, with 3.88% of its assets in Syndax Pharmaceuticals shares.
SNDX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Syndax Pharmaceuticals | 125.60% | 1.69% | -27.29% |
| Sector | Healthcare Stocks | 50.53% | 12.40% | 37.07% |
| Industry | Biotech Stocks | 48.96% | 12.12% | 38.92% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 9.02M | 10.41% | $197.18M |
| Kynam capital management, lp | 8.05M | 9.29% | $175.99M |
| Blackrock | 7.91M | 9.28% | $162.33M |
| Vanguard group | 6.23M | 7.19% | $130.90M |
| Goldman sachs group | 5.86M | 6.77% | $128.13M |
| State street | 5.66M | 6.53% | $123.69M |
| Bank of america corp /de/ | 4.05M | 4.67% | $88.43M |
| Vanguard capital management | 3.93M | 4.53% | $85.86M |
| Deerfield management company, l.p. (series c) | 3.78M | 4.36% | $82.63M |
| Adage capital partners gp | 3.31M | 3.84% | $50.95M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Kynam capital management, lp | 8.05M | 9.73% | $175.99M |
| Aisling capital management lp | 1.32M | 6.10% | $28.79M |
| Kingdon capital management | 2.50M | 5.60% | $54.65M |
| Knott david m jr | 437.25K | 5.05% | $9.56M |
| Catalio capital management, lp | 1.22M | 4.99% | $26.58M |
| Prosight management, lp | 1.20M | 4.52% | $26.23M |
| Lion point capital, lp | 36.00K | 3.76% | $786.96K |
| Eversept partners, lp | 2.80M | 3.17% | $61.17M |
| Sphera funds management | 1.01M | 2.89% | $22.18M |
| Silverarc capital management | 1.21M | 2.76% | $26.55M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Adage capital partners gp | 3.31M | 0.08% | 1.88M |
| Millennium management | 2.05M | 0.02% | 1.85M |
| State street | 5.66M | 0.00% | 1.23M |
| Vanguard group | 6.23M | 0.00% | 1.09M |
| Loomis sayles & co l p | 923.62K | 0.03% | 923.62K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Avoro capital advisors | - | - | -2.27M |
| Point72 asset management | - | - | -1.99M |
| Bvf inc/il | - | - | -1.88M |
| Balyasny asset management | 126.14K | 0.00% | -1.69M |
| Sofinnova investments | - | - | -1.52M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Loomis sayles & co l p | 923.62K | 0.03% | 923.62K | $20.19M |
| Sixth street partners management company | 814.30K | 0.00% | 814.30K | $17.80M |
| First trust advisors lp | 456.70K | 0.01% | 456.70K | $9.98M |
| Jupiter asset management | 366.57K | 0.04% | 366.57K | $8.01M |
| Ikarian capital | 333.73K | 0.52% | 333.73K | $5.13M |
Sold Out
| Holder | Change |
|---|---|
| Tfc financial management | -1.00 |
| Quadrant capital group | -3.00 |
| Jpl wealth management | -5.00 |
| Nelson, van denburg & campbell wealth management group | -13.00 |
| Bare financial services | -23.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 251 | -3.46% | 108,796,330 | 9.49% | 125 | 0.95% | 133 | -6.99% | 77 | 10.00% |
| Mar 31, 2026 | 94 | -61.94% | 15,133,904 | -84.85% | 17 | 0.13% | 45 | -62.18% | 23 | -70.13% |
| Dec 31, 2025 | 166 | -32.52% | 53,238,549 | -47.45% | 61 | 0.45% | 78 | -39.06% | 46 | -34.29% |
| Sep 30, 2025 | 238 | 5.78% | 101,267,970 | 8.78% | 117 | 1.01% | 123 | 6.03% | 69 | 13.11% |
| Jun 30, 2025 | 232 | - | 101,730,191 | 1.68% | 117 | 0.86% | 116 | -3.33% | 65 | 1.56% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| State Street® SPDR® S&P® Biotech ETF | 3.46M | 3.88% | 7.95K |
| Vanguard Health Care Inv | 2.99M | 3.50% | - |
| Vanguard Total Stock Mkt Idx Inv | 2.83M | 3.19% | 14.81K |
| Vanguard Morn Total Stk Mkt Idx Investor | 2.83M | 3.19% | 14.81K |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.84M | 3.18% | 14.88K |
| Vanguard US Total Market Shares ETF | 2.60M | 3.01% | 4.69K |
| iShares Russell 2000 ETF | 2.27M | 2.54% | -40.22K |
| SPDR® S&P Biotech ETF | 1.54M | 1.78% | 3.43K |
| Eventide Healthcare & Life Sciences I | 1.24M | 1.40% | 249.06K |
| Hood River Small-Cap Growth Instl | 1.21M | 1.36% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jul 08, 2026 | Metzger Michael A | Chief Executive Officer | Sell | $784.78K |
| Jun 12, 2026 | Botwood Nicholas A.J. | Head of R&D, CMO | Sell | $566.60K |
| Jun 11, 2026 | Botwood Nicholas A.J. | Head of R&D, CMO | Sell | $617.04K |
| Jun 01, 2026 | Goldan Keith A. | Chief Financial Officer | Sell | $22.35K |
| Jun 01, 2026 | Metzger Michael A | Chief Executive Officer | Sell | $130.02K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 1 |
| 2026 Q2 | - | 4 |
| 2026 Q1 | - | 4 |
| 2025 Q4 | - | - |
| 2025 Q3 | - | 6 |
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