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Aptose Biosciences Inc.

APTO
Transactions reported in official disclosures

72 trades

Reporting person Filed Transaction Transaction value Source
Seizinger Bernd R. Other Jul 2, 2026 2-day lag Disposition Jun 30, 2026 $29.24K Filed shares x price SEC Form 4 View filing
Seizinger Bernd R. Other Jul 2, 2026 2-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Seizinger Bernd R. Other Jul 2, 2026 2-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Seizinger Bernd R. Other Jul 2, 2026 2-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Platzer Erich Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Platzer Erich Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Payne Fletcher Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Platzer Erich Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Payne Fletcher Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Platzer Erich Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $1.93K Filed shares x price SEC Form 4 View filing
Bejar Rafael Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Platzer Erich Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $120.4 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Bejar Rafael Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $1.05M Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Platzer Erich Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Burger Denis R Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Rice William G. Chair, President & CEO Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $0 Filed shares x price SEC Form 4 View filing
Payne Fletcher Other Jul 1, 2026 1-day lag Disposition Jun 30, 2026 $381.84 Filed shares x price SEC Form 4 View filing
Seizinger Bernd R. Other
Disposition
Calculated transaction value
$29.24K 17,000 shares @ $1.72
Traded
Jun 30, 2026
Filed
Jul 2, 2026
SEC Form 4
View filing Trade details
Seizinger Bernd R. Other
Disposition
Calculated transaction value
$0 3,333 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 2, 2026
SEC Form 4
View filing Trade details
Seizinger Bernd R. Other
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 2, 2026
SEC Form 4
View filing Trade details
Seizinger Bernd R. Other
Disposition
Calculated transaction value
$0 100,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 2, 2026
SEC Form 4
View filing Trade details
Platzer Erich Other
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$0 400,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Platzer Erich Other
Disposition
Calculated transaction value
$0 135,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Payne Fletcher Other
Disposition
Calculated transaction value
$0 1,000,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Platzer Erich Other
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Payne Fletcher Other
Disposition
Calculated transaction value
$0 55,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Platzer Erich Other
Disposition
Calculated transaction value
$1.93K 1,122 shares @ $1.72
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Bejar Rafael Other
Disposition
Calculated transaction value
$0 400,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$0 600,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Platzer Erich Other
Disposition
Calculated transaction value
$0 10,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 100,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$120.4 70 shares @ $1.72
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$0 100,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 10,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 3,333 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Bejar Rafael Other
Disposition
Calculated transaction value
$0 200,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 5,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$1.05M 613,252 shares @ $1.72
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 50,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Platzer Erich Other
Disposition
Calculated transaction value
$0 100,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Burger Denis R Other
Disposition
Calculated transaction value
$0 40,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Rice William G. Chair, President & CEO
Disposition
Calculated transaction value
$0 400,000 shares @ $0
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details
Payne Fletcher Other
Disposition
Calculated transaction value
$381.84 222 shares @ $1.72
Traded
Jun 30, 2026
Filed
Jul 1, 2026
SEC Form 4
View filing Trade details

Showing 1 to 30 of 72 entries