Aptose Biosciences Inc. (APTOF)

Latest Insider Confidence Score

2025Q4

50.0
Bullish

Company insider confidence (by quarter)

2018Q4 2025Q4

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Marango Jotin Senior VP, Chief Bus. Officer 600,000 Jan 20, 2022
Hanmi Pharmaceutical Co., Ltd. — 508,710 Mar 20, 2025
Chow Gregory K. CFO 343,000 Jan 6, 2021
Payne Fletcher SR VP & Chief Fin. Officer 55,000 Feb 7, 2024
Rice William G. CEO 50,000 Nov 26, 2024

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 20, 2025 Hanmi Pharmaceutical Co., Ltd. 10% Owner Neutral 52.5 - 0.00% ✗ -
Nov 25, 2024 Nov 26, 2024 Rice William G. CEO Buy 91.3 +100,000 19.48% ✗ $20K
May 10, 2024 LEDRU PHILIPPE Other Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Payne Fletcher CFO Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Bejar Rafael Sr VP & Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 LEDRU PHILIPPE Sr VP & Ch Commerical Officer Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Rice William G. CEO Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Seizinger Bernd R. Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 PLATZER ERICH Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Ashe Carol Gail Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Feb 5, 2024 Feb 7, 2024 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Sep 22, 2023 Sep 25, 2023 Seizinger Bernd R. Director Buy 95.0 +17,000 100.00% ✗ $53.4K
Jan 19, 2023 Jan 23, 2023 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2023 Jan 23, 2023 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2023 Jan 23, 2023 Seizinger Bernd R. Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2023 Jan 23, 2023 Rice William G. CEO Neutral 90.0 +150,000 41.29% ✗ -
Jan 19, 2023 Jan 23, 2023 PLATZER ERICH Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2023 Jan 23, 2023 Payne Fletcher SR VP & Chief Fin. Officer Neutral 90.0 +100,000 1000.00% ✗ -
Jan 19, 2023 Jan 23, 2023 LEDRU PHILIPPE Chief Commercial Officer Neutral 90.0 +100,000 20000.00% ✗ -
Jan 19, 2023 Jan 23, 2023 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2023 Jan 23, 2023 Ashe Carol Gail Director Neutral 52.5 - 0.00% ✗ -
Jan 19, 2023 Jan 23, 2023 Bejar Rafael Sr. VP, Chief Medical Officer Neutral 90.0 +100,000 1000.00% ✗ -
Sep 19, 2022 Sep 21, 2022 Rice William G. CEO Buy 82.5 +10,000 2.83% ✗ $6.8K
Sep 19, 2022 Sep 21, 2022 Payne Fletcher SR VP & Chief Fin. Officer Buy 90.0 +10,000 100.00% ✗ $6.8K
Sep 14, 2022 Sep 16, 2022 Seizinger Bernd R. Director Neutral 52.5 - 0.00% ✗ -
Sep 16, 2022 Seizinger Bernd R. Director Neutral 52.5 - 0.00% ✗ -
Jul 6, 2022 Jul 7, 2022 Rice William G. CEO Neutral 52.5 - 0.00% ✗ -
Jun 27, 2022 Jun 28, 2022 Payne Fletcher SR VP & Chief Fin. Officer Neutral 52.5 - 0.00% ✗ -
Jun 28, 2022 Payne Fletcher SR VP & Chief Fin. Officer Neutral 52.5 - 0.00% ✗ -
Jun 15, 2022 Loewy Caroline M Other Neutral 52.5 - 0.00% ✗ -
Jun 6, 2022 Jun 6, 2022 Rice William G. CEO Buy 82.5 +10,000 2.91% ✗ $9.7K
Apr 13, 2022 Apr 14, 2022 LEDRU PHILIPPE Chief Commercial Officer Neutral 52.5 - 0.00% ✗ -
Apr 14, 2022 LEDRU PHILIPPE Chief Commercial Officer Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Ashe Carol Gail Director Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Rice William G. CEO Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Marango Jotin CFO Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Bejar Rafael Sr. VP, Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Loewy Caroline M Director Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Jan 18, 2022 Jan 20, 2022 PLATZER ERICH Director Neutral 52.5 - 0.00% ✗ -
Dec 28, 2021 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Dec 20, 2021 Dec 21, 2021 BURGER DENIS R Director Buy 91.3 +10,000 46.14% ✗ $14.5K
Dec 16, 2021 Dec 20, 2021 PLATZER ERICH Director Buy 95.0 +100,000 24.69% ✗ $137.9K
Dec 15, 2021 Dec 17, 2021 PLATZER ERICH Director Buy 97.5 +270,000 200.00% ✗ $316.3K
Dec 16, 2021 Dec 17, 2021 Rice William G. CEO Buy 83.8 +13,183 3.99% ✗ $20K
Dec 15, 2021 Dec 15, 2021 Rice William G. CEO Buy 86.3 +17,822 5.71% ✗ $20K
Nov 26, 2021 Nov 29, 2021 Rice William G. CEO Buy 83.8 +8,643 2.85% ✗ $20K
Nov 19, 2021 Nov 23, 2021 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Nov 19, 2021 Nov 19, 2021 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Nov 19, 2021 Nov 19, 2021 Bejar Rafael Sr. VP, Chief Medical Officer Buy 91.3 +10,000 100.00% ✗ $25.6K
Aug 19, 2021 Aug 23, 2021 Marango Jotin CFO Neutral 52.5 - 0.00% ✗ -
Aug 19, 2021 Aug 23, 2021 Bejar Rafael Sr. VP, Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Aug 3, 2021 Aug 5, 2021 Wilson Donald R. Jr. 10% Owner Sell 52.5 -2,801 -0.03% ✗ $5.8K
Aug 5, 2021 Wilson Donald R. Jr. 10% Owner Neutral 52.5 - 0.00% ✗ -
Jul 2, 2021 Jul 6, 2021 Rice William G. CEO Buy 78.8 +6,081 2.04% ✗ $20K
Jun 21, 2021 Jun 23, 2021 Whitehead Warren Director Sell 22.5 -25,000 -62.50% ✗ $82.7K
Jan 4, 2021 Jan 6, 2021 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Rice William G. CEO Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 PLATZER ERICH Director Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Marango Jotin Senior VP, Chief Bus. Officer Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Loewy Caroline M Director Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Chow Gregory K. CFO Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Bejar Rafael Sr. VP, Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Jan 4, 2021 Jan 6, 2021 Ashe Carol Gail Director Neutral 52.5 - 0.00% ✗ -
Dec 22, 2020 Dec 28, 2020 Whitehead Warren Director Sell 22.5 -20,000 -33.33% ✗ $81.2K
Jul 10, 2020 Jul 10, 2020 Chow Gregory K. CFO Sell 40.0 -126,668 -35.23% ✗ $766.3K
Jul 10, 2020 Jul 10, 2020 Rice William G. CEO Sell 37.5 -168,891 -36.21% ✗ $1M
Jul 10, 2020 Jul 10, 2020 Marango Jotin Senior VP, Chief Bus. Officer Sell 40.0 -62,835 -35.09% ✗ $380.2K
Jul 2, 2020 Jul 2, 2020 Marango Jotin Senior VP, Chief Bus. Officer Sell 42.5 -20,946 -10.47% ✗ $132.8K
Jun 23, 2020 Jun 25, 2020 Whitehead Warren Director Sell 22.5 -35,000 -16.28% ✗ $242.6K
Jun 3, 2019 May 7, 2020 Marango Jotin Senior VP, Chief Bus. Officer Neutral 90.0 +80,000 100.00% ✗ -
Mar 10, 2020 May 7, 2020 Chow Gregory K. CFO Neutral 90.0 +225,000 167.27% ✗ -
Mar 10, 2020 May 7, 2020 Rice William G. CEO Neutral 90.0 +300,000 184.03% ✗ -
Mar 10, 2020 May 7, 2020 Marango Jotin Senior VP, Chief Bus. Officer Neutral 90.0 +120,000 150.00% ✗ -
Mar 25, 2020 Mar 26, 2020 Rice William G. CEO Buy 68.8 +3,400 0.73% ✗ $19.8K
Mar 11, 2020 Mar 13, 2020 Ashe Carol Gail Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 Loewy Caroline M Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 PLATZER ERICH Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 Loewy Caroline M Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 BURGER DENIS R Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Mar 11, 2020 Mar 13, 2020 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Mar 10, 2020 Mar 12, 2020 Chow Gregory K. CFO Neutral 90.0 +225,000 167.27% ✗ -
Mar 10, 2020 Mar 12, 2020 Marango Jotin Senior VP, Chief Bus. Officer Neutral 90.0 +120,000 150.00% ✗ -
Mar 10, 2020 Mar 12, 2020 Rice William G. CEO Neutral 90.0 +300,000 184.03% ✗ -
Jan 31, 2020 Feb 3, 2020 Whitehead Warren Director Neutral 52.5 - 0.00% ✗ -
Jan 31, 2020 Feb 3, 2020 Vincent Mark D. Director Neutral 52.5 - 0.00% ✗ -
Jan 31, 2020 Feb 3, 2020 Rice William G. CEO Neutral 52.5 - 0.00% ✗ -
Jan 31, 2020 Feb 3, 2020 PLATZER ERICH Director Neutral 52.5 - 0.00% ✗ -
Jan 31, 2020 Feb 3, 2020 Marango Jotin Senior VP, Chief Bus. Officer Neutral 52.5 - 0.00% ✗ -
Jan 31, 2020 Feb 3, 2020 Loewy Caroline M Director Neutral 52.5 - 0.00% ✗ -