William D. Porteous

William D. Porteous is a declared insider of BlackSky Technology Inc. (senior executive), with filings sourced from SEC (Form 4). Over a trading history stretching from 21 December 2021 to 30 September 2026, the count stands at 21 filings.

Sales make up the whole of the open-market record (1 sale, €5,778). The rest of the record consists of 20 share grants.

The record was last updated on 1 October 2026 with a share grant in BlackSky Technology Inc. Typically, a trade is published a median of 2 days after it takes place. 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.