Warren Whitehead

This profile gathers the share dealings of Warren Whitehead in Aptose Biosciences Inc. Over a trading history stretching from 27 June 2017 to 18 February 2025, the count stands at 26 filings.

Both buying and selling appear: 4 purchases worth €45k, against 12 sales worth €350k. Taken together, the sales exceed the purchases by €304k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Besides market trades, the filings include 8 option exercises.

In size, the median ticket on the buying side is €11k. The 4 purchases reviewed show no overlap with other insiders buying the same stock within a month.

On 9 April 2025 came the latest disclosure, a transaction in Aptose Biosciences Inc. The latest purchase dates back some time: it was published 3,358 days ago, on 16 August 2017. The median gap between a trade and its publication by SEC (Form 4) is 5 days. US insiders must file a Form 4 within two business days of a trade. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.