Syndax Pharmaceuticals, Inc. (SNDX) Insider Trading
Over the last 3 months, SNDX insiders made 0 open-market buys and 5 sales, a net sale of -$2.1M (SEC Form 4). Over the last 6 months, 189 institutions increased and 157 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
5
Net (3m)
-$2.1M
Insider trades by month Buys Sells
Jul
Aug
Sep
Feb
Jun
Jul
Context3-month price -1.6%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 9, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Sell | 32,375 | $24.24 |
| Jul 9, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Option | 32,375 | $6.38 |
| Jun 12, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Sell | 34,280 | $18.00 |
| Jun 12, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Option | 22,515 | $13.82 |
| Jun 12, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Sell | 31,235 | $18.14 |
| Jun 12, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Option | 31,235 | $13.82 |
| Jun 2, 2026 | Goldan Keith A.officer: Chief Financial Officer | Sell | 1,177 | $18.99 |
| Jun 2, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Sell | 6,847 | $18.99 |
| Feb 10, 2026 | Goldan Keith A.officer: Chief Financial Officer | Sell | 3,410 | $21.03 |
| Feb 10, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Sell | 17,159 | $21.03 |
| Feb 6, 2026 | Goldan Keith A.officer: Chief Financial Officer | Grant | 118,000 | $20.43 |
| Feb 6, 2026 | Goldan Keith A.officer: Chief Financial Officer | Grant | 21,500 | — |
| Feb 6, 2026 | Jarrett Jenniferdirector | Grant | 24,000 | — |
| Feb 6, 2026 | Huber Martin H. Jr.director | Grant | 24,000 | — |
| Feb 6, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Grant | 144,700 | $20.43 |
| Feb 6, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Grant | 36,000 | — |
| Feb 6, 2026 | Botwood Nicholas A.J.officer: Head of R&D, CMO | Grant | 24,000 | — |
| Feb 6, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Grant | 73,000 | — |
| Feb 6, 2026 | Rizo Aleksandradirector | Grant | 24,000 | — |
| Feb 6, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Grant | 144,600 | — |
| Feb 6, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Sell | 7,412 | $20.62 |
| Feb 6, 2026 | Legault Pierredirector | Grant | 24,000 | — |
| Feb 6, 2026 | Metzger Michael Adirector, officer: Chief Executive Officer | Grant | 440,000 | $20.43 |
| Feb 6, 2026 | Katkin Keithdirector | Grant | 24,000 | — |
| Feb 6, 2026 | Podlesak Dennisdirector | Grant | 48,000 | — |
| Feb 6, 2026 | Goldan Keith A.officer: Chief Financial Officer | Grant | 30,750 | — |
| Feb 6, 2026 | Goldan Keith A.officer: Chief Financial Officer | Sell | 2,082 | $20.62 |
| Sep 8, 2025 | Metzger Michael Adirector, officer: Chief Executive Officer | Sell | 157,307 | $16.41 |
| Sep 8, 2025 | Metzger Michael Adirector, officer: Chief Executive Officer | Option | 157,307 | $10.90 |
| Aug 18, 2025 | Podlesak Dennisdirector | Sell | 19,200 | $14.19 |
Source: SNDX SEC Form 4 filings, latest Jul 9, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SNDX positions over the last 6 months (SEC Form 13F).
Increased
189
New positions
71
Reduced
157
Sold out
60
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 8.3M | May 13, 2026 |
| BLACKROCK, INC. | Reduced | 8.2M | Feb 12, 2026 |
| KYNAM CAPITAL MANAGEMENT, LP | Reduced | 8.1M | Feb 17, 2026 |
| KYNAM CAPITAL MANAGEMENT, LP | Unchanged | 8.1M | May 15, 2026 |
| VANGUARD GROUP INC | Increased | 6.2M | Jan 29, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 5.7M | Mar 25, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 5.0M | May 15, 2026 |
| POINT72 ASSET MANAGEMENT, L.P. | Increased | 4.9M | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | Increased | 4.7M | Feb 17, 2026 |
| STATE STREET CORP | Increased | 4.6M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 4.4M | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | Reduced | 4.2M | May 18, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3.8M | May 15, 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | New Position | 3.8M | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | Reduced | 3.7M | Feb 3, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.