Aptose Biosciences Inc. (APTO) has 8 SEC Form 4 insider filings on record in the last 90 days. Most recent filing: July 2, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
|---|---|---|---|---|---|---|
| July 2, 2026 filed June 30, 2026 | Seizinger Bernd R. Insider | $29,240 | 170,333 | −100% | No | |
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| July 1, 2026 filed June 30, 2026 | Whitehead Warren Insider | $57 | 548,866 | −100% | No | |
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| July 1, 2026 filed June 30, 2026 | Vincent Mark D. Insider | $24 | 522,347 | −100% | No | |
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| July 1, 2026 filed June 30, 2026 | Rice William G. Chair, President & CEO | $1,054,793 | 6,026,252 | −100% | No | |
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| July 1, 2026 filed June 30, 2026 | PLATZER ERICH Insider | $1,930 | 504,455 | −100% | No | |
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Showing the 5 most recent of 8 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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