🕵️ Syndax Pharmaceuticals Inc ($SNDX)
SEC insider & ownership activity, last 12 months · CIK 1395937 · every row links its SEC filing
Over the last 12 months insiders sold $6.2M with no open-market buying against it. Michael A. Metzger sold $4.0M through a 10b5-1 trading plan in 5 lots (Sep–Jul). 1 planned sale is pending, the largest $609K (Botwood Nicholas A.j.). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 4 sellers, $6.2M (13 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Michael A. Metzger | 0 | – | 5 | $4.0M | Jul 8, 2026 |
| Botwood Nicholas A.j. | 0 | – | 2 | $1.2M | Jun 12, 2026 |
| Dennis G Podlesak | 0 | – | 3 | $875K | Aug 18, 2025 |
| Keith A. Goldan | 0 | – | 3 | $137K | Jun 1, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Kynam Capital Management, LP | 10.0% | 13G | Feb 14, 2025 | filing ↗ | |
| Kynam Capital Management GP, LLC | 10.0% | 13G | Feb 14, 2025 | filing ↗ | |
| Yue Tang | 10.0% | 13G | Feb 14, 2025 | filing ↗ | |
| Blackrock, Inc. | 7.8% | 13G | Apr 17, 2025 | filing ↗ | |
| The Goldman Sachs Group, Inc. | 6.5% | 13G | Aug 13, 2025 | filing ↗ | |
| Goldman Sachs & Co. LLC | 6.5% | 13G | Aug 13, 2025 | filing ↗ | |
| State Street Corporation | 5.3% | 13G | Feb 9, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.0% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Michael Metzger | $752K | Jul 8, 2026 | filing ↗ |
| Botwood Nicholas A.j. | $567K | Jun 12, 2026 | filing ↗ |
| Botwood Nicholas A.j. | $609K | Jun 11, 2026 | filing ↗ |
| Keith A. Goldan | $22K | Jun 1, 2026 | filing ↗ |
| Michael A. Metzger | $130K | Jun 1, 2026 | filing ↗ |
| Michael A. Metzger | $361K | Feb 9, 2026 | filing ↗ |
| Keith A. Goldan | $72K | Feb 9, 2026 | filing ↗ |
| Michael A. Metzger | $153K | Feb 6, 2026 | filing ↗ |
| Keith A. Goldan | $43K | Feb 6, 2026 | filing ↗ |
| Michael Metzger | $2.7M | Sep 8, 2025 | filing ↗ |
| Dennis G Podlesak | $227K | Aug 18, 2025 | filing ↗ |
| Dennis G Podlesak | $581K | Aug 14, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Jul 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 14, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 10, 2026 | filing ↗ |
| New financial obligation (2.03) | Jun 10, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jun 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 10, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 10, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 3, 2026 | filing ↗ |
| New financial obligation (2.03) | Jun 3, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jun 3, 2026 | filing ↗ |
| Other events (8.01) | Jun 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 3, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Dec 18, 2025 | filing ↗ |
| Earnings (2.02) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Oct 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 24, 2025 | filing ↗ |
| Earnings (2.02) | Aug 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 4, 2025 | filing ↗ |