Syndax Pharmaceuticals Inc
Ownership
Ownership Structure
Who owns Syndax Pharmaceuticals Inc (SNDX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 89.9% of the shares are freely tradable; institutional investors hold 116.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.10 | 9,020,006 | +9.3 | 06/30/2026 |
| Kynam Capital Management, LP | 9.02 | 8,050,959 | +0.0 | 06/30/2026 |
| The Goldman Sachs Group Inc | 6.56 | 5,861,265 | +17.3 | 06/30/2026 |
| State Street Corp | 6.34 | 5,658,424 | +27.7 | 06/30/2026 |
| Bank of America Corp | 4.53 | 4,045,094 | -4.8 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.40 | 3,927,892 | +2.8 | 06/30/2026 |
| Deerfield Management Co | 4.23 | 3,779,900 | +0.0 | 06/30/2026 |
| Eversept Partners, LP | 3.13 | 2,798,210 | -3.0 | 06/30/2026 |
| Geode Capital Management, LLC | 2.89 | 2,584,136 | +19.8 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.19 | 2,850,604 | +0.6 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Metzger Michael A | Chief Executive Officer | 484,843 | 6,642,349 $ | Jul 8, 2026 | direct |
| Podlesak Dennis | Director | 239,763 | 3,284,753 $ | Oct 29, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 29, 2026 | Podlesak Dennis | Director | Sell | 8,000 | 14.21 | 113,716 |
| Oct 29, 2026 | Podlesak Dennis | Director | Other | 8,000 | 11.81 | 94,480 |
| Jul 8, 2026 | Metzger Michael A | Chief Executive Officer | Sell | 32,375 | 24.24 | 784,776 |
| Jul 8, 2026 | Metzger Michael A | Chief Executive Officer | Other | 32,375 | 6.38 | 206,553 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.