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APTOF · Aptose Biosciences Inc.

$1.69 +0.02 (+0.90%) At close · Jul 2
Market Cap
$4.31M
Shares
2.55M

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Date Insider Type Shares
2026-06-30
PLATZER ERICH
Other
3,333
2026-06-30
Rice William G.
Other
400,000
2026-06-30
BURGER DENIS R
Other
50,000
2026-06-30
Vincent Mark D.
Other
50,000
2026-06-30
BURGER DENIS R
Other
100,000
2026-06-30
Whitehead Warren
Other
40,000
2026-06-30
Rice William G.
Other
300,000
2026-06-30
Whitehead Warren
Other
152,500
2026-06-30
Seizinger Bernd R.
Other
100,000
2026-06-30
Vincent Mark D.
Other
154,000
2026-06-30
BURGER DENIS R
Other
5,000
2026-06-30
Vincent Mark D.
Other
50,000
2026-06-30
Rice William G.
Other
400,000
2026-06-30
BURGER DENIS R
Other
40,000
2026-06-30
Payne Fletcher
Other
22
2026-06-30
Whitehead Warren
Other
50,000
2026-06-30
Bejar Rafael
Other
35,000
2026-06-30
Whitehead Warren
Other
100,000
2026-06-30
Rice William G.
Other
100,000
2026-06-30
Whitehead Warren
Other
50,000
2026-06-30
Vincent Mark D.
Other
10,000
2026-06-30
Bejar Rafael
Other
343,000
2026-06-30
Whitehead Warren
Other
50,000
2026-06-30
Rice William G.
Other
50,000
2026-06-30
Vincent Mark D.
Other
100,000
2026-06-30
PLATZER ERICH
Other
135,000
2026-06-30
Bejar Rafael
Other
200,000
2026-06-30
PLATZER ERICH
Other
1,122
2026-06-30
Rice William G.
Other
600,000
2026-06-30
PLATZER ERICH
Other
50,000
2026-06-30
Bejar Rafael
Other
400,000
2026-06-30
Seizinger Bernd R.
Other
50,000
2026-06-30
Seizinger Bernd R.
Other
3,333
2026-06-30
Bejar Rafael
Other
400,000
2026-06-30
Rice William G.
Other
700,000
2026-06-30
Vincent Mark D.
Other
3,333
2026-06-30
BURGER DENIS R
Other
3,333
2026-06-30
Rice William G.
Other
613,252
2026-06-30
Whitehead Warren
Other
33
2026-06-30
Bejar Rafael
Other
244
2026-06-30
Payne Fletcher
Other
200,000
2026-06-30
Payne Fletcher
Other
222
2026-06-30
Whitehead Warren
Other
53,000
2026-06-30
Vincent Mark D.
Other
5,000
2026-06-30
PLATZER ERICH
Other
10,000
2026-06-30
Payne Fletcher
Other
55,000
2026-06-30
Bejar Rafael
Other
200,000
2026-06-30
BURGER DENIS R
Other
10,000
2026-06-30
PLATZER ERICH
Other
100,000
2026-06-30
PLATZER ERICH
Other
50,000
Legend Buy — open-market purchase Sell — open-market sale Shares acquired Shares disposed (gift, conversion, tax…)
Showing 1–50 of 197 transactions
Key facts CIK 882361 CUSIP 03835T408 13F (30d) 2 filings 2 filers Visit website Investor relations