Company profile
Syndax Pharmaceuticals Inc Insider Trading
SNDXEvery SEC Form 4 insider trading filing for Syndax Pharmaceuticals Inc (SNDX) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001395937
- Filings
- 60
- Insiders
- 12
- Last filing
- 2026-07-08
Activity summary
No insider transactions in the last 30 days. The most recent was on July 8, 2026, when Michael A Metzger bought 32,375 shares. 60 filings from 12 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Syndax Pharmaceuticals Inc insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $14.4M.
90 day insight
Over the last 90 days, Syndax Pharmaceuticals Inc insiders bought $207K across 2 transactions with no open-market sales.
- Most active insider: Michael A Metzger with 3 transactions totaling $991K.
- Largest single sale: $785K by Michael A Metzger on Jul 8, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 8, 2026 | Michael A Metzger | SNDX | Option Exercise | 32,375 | $6.38 | $207K |
| Jul 8, 2026 | Michael A Metzger | SNDX | Sale10b5 | 32,375 | $24.24 | $785K |
| Jul 8, 2026 | Michael A Metzger | SNDX | Option Exercise | 32,375 | — | — |
| Jun 12, 2026 | Nicholas A.J. Botwood | SNDX | Option Exercise | 31,235 | $13.82 | $432K |
| Jun 12, 2026 | Nicholas A.J. Botwood | SNDX | Sale10b5 | 31,235 | $18.14 | $567K |
45 more transactions hidden
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By total value filed.
Institutional Ownership
Top 13F-HR holders of Syndax Pharmaceuticals Inc as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →