Gregory K. Chow serves as Executive at Aptose Biosciences Inc., where they oversee executive responsibilities. Since joining the company, Gregory K. Chow has executed 7 insider transactions totaling $822.5K, demonstrating a bearish approach to their equity position. Their most recent transaction on Oct 15, 2025 involved purchasing 19,750 shares valued at $16.0K.
Gregory K. Chow currently holds 19,750 shares of Aptose Biosciences Inc. (APTO), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Gregory K. Chow has been a net seller of APTO stock. They have purchased $56.1K and sold $766.3K worth of shares.
Gregory K. Chow's most recent insider trade was on Oct 15, 2025, when they purchased 19,750 shares at $0.81 per share.
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| $6.05 |
| Discretionary |
| Mar 10, 2020 | APTO | $0 | Award | 225,000 | $N/A | Discretionary |
| Mar 10, 2020 | APTO | $0 | Award | 225,000 | $N/A | Discretionary |
| Jun 5, 2019 | APTO | $13.8K | Purchase | 7,500 | $1.84 | Discretionary |
| Mar 13, 2019 | APTO | $8.9K | Purchase | 5,000 | $1.79 | Discretionary |
| Mar 13, 2019 | APTO | $17.4K | Purchase | 10,000 | $1.74 | Discretionary |