Aptose Biosciences Inc (APTO) insider trading
Every open-market stock purchase and sale by Aptose Biosciences Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- No open-market insider trades in the last 12 months.
- Last insider buy: William G. Rice (CEO), $20K, 23 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $0 (0 sales). Last close $1.71 on Apr 1, 2025.
Recent APTO insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | $1.1M |
| Jun 30, 2026 | Bernd R. Seizinger (Insider) | Sold (not open market) | $29.2K |
| Jun 30, 2026 | Erich Platzer (Insider) | Sold (not open market) | $1.9K |
| Jun 30, 2026 | Rafael Bejar (Insider) | Sold (not open market) | $420 |
| Jun 30, 2026 | Fletcher Payne (Insider) | Sold (not open market) | $382 |
| Jun 30, 2026 | Denis R Burger (Insider) | Sold (not open market) | $120 |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | $57 |
| Jun 30, 2026 | Fletcher Payne (Insider) | Sold (not open market) | $38 |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | Warren Whitehead (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | William G. Rice (CEO) | Sold (not open market) | — |
| Jun 30, 2026 | Erich Platzer (Insider) | Sold (not open market) | — |
| Jun 30, 2026 | Erich Platzer (Insider) | Sold (not open market) | — |
Who's trading APTO
- Warren Whitehead, Insider: other filings, last Jun 30, 2026
- Denis R Burger, Insider: other filings, last Jun 30, 2026
- Rafael Bejar, Insider: other filings, last Jun 30, 2026
- Bernd R. Seizinger, Insider: other filings, last Jun 30, 2026
- Mark D. Vincent, Insider: other filings, last Jun 30, 2026
- Erich Platzer, Insider: other filings, last Jun 30, 2026
- Fletcher Payne, Insider: other filings, last Jun 30, 2026
- William G. Rice, CEO: other filings, last Jun 30, 2026
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