P. Derek Cook

P. Derek Cook appears in our data through filings on Atco Ltd. shares, published by SEDI. In total, 68 filings cover trades dated from 31 December 2015 to 12 November 2025.

In open-market terms, that means 1 purchase worth €60k on one side and 25 sales worth €474k on the other. The net balance comes to €414k on the selling side. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The rest of the record consists of 30 share grants and 8 option exercises. Since January 2025: 1 purchase and 13 sales on the market.

On 14 November 2025 came the latest disclosure, an open-market sale for €14k in Atco Ltd. The last purchase on record was published on 14 November 2025, which is 341 days ago. Typically, a trade is published a median of 4 days after it takes place. That lag is the time during which only the insider knows about the trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. These figures are compiled from regulatory filings published by SEDI. They describe what insiders did and are not a recommendation.