Erich Platzer

Companies

• Aptose Biosciences Inc.Board member Dec 21, 2018 to Feb 7, 2024¹

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 1,122 shares at $1.72 of Aptose Biosciences Inc.²
• Dec 16, 2021Bought 20,000 shares at $1.40 of Aptose Biosciences Inc.³
• Dec 16, 2021Bought 30,000 shares at $1.38 of Aptose Biosciences Inc.³
• Dec 16, 2021Bought 50,000 shares at $1.37 of Aptose Biosciences Inc.³
• Dec 15, 2021Bought 100,000 shares at $1.18 of Aptose Biosciences Inc.⁴
• Dec 15, 2021Bought 30,000 shares at $1.19 of Aptose Biosciences Inc.⁴
• Dec 15, 2021Bought 20,000 shares at $1.20 of Aptose Biosciences Inc.⁴
• Dec 15, 2021Bought 120,000 shares at $1.16 of Aptose Biosciences Inc.⁴