William G. Rice

Companies

• Aptose Biosciences Inc.Chief executive officer Dec 21, 2018 to now¹
• Aptose Biosciences Inc.Chair Dec 21, 2018 to now¹
• Aptose Biosciences Inc.President Dec 21, 2018 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• ABAptose Biosciences Inc.0 shares²Jun 30, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 30, 2026Returned to company 613,252 shares at $1.72 of Aptose Biosciences Inc.²
• Nov 25, 2024Bought 100,000 shares at $0.20 of Aptose Biosciences Inc.³
• Jan 19, 2023Granted 150,000 shares of Aptose Biosciences Inc.⁴
• Sep 19, 2022Bought 10,000 shares at $0.68 of Aptose Biosciences Inc.⁵
• Jun 6, 2022Bought 10,000 shares at $0.97 of Aptose Biosciences Inc.⁶
• Dec 16, 2021Bought 13,183 shares at $1.52 of Aptose Biosciences Inc.⁷
• Dec 15, 2021Bought 17,822 shares at $1.12 of Aptose Biosciences Inc.⁸
• Nov 26, 2021Bought 8,643 shares at $2.31 of Aptose Biosciences Inc.⁹