Mark Spoto

Mark Spoto is a declared insider of 908 Devices Inc. (board member), with filings sourced from SEC (Form 4). Between 22 December 2020 and 10 June 2026, the trades on record add up to 15 filings.

Purchases make up the whole of the open-market record (4 purchases, €79k). Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 5 option exercises.

A typical purchase (the median) is worth €20k. On 3 out of 4 purchases, another insider of the same company was buying within the same 30 days. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.

The newest entry dates from 12 June 2026: an option exercise, in 908 Devices Inc. The most recent open-market purchase was published on 15 May 2025, 542 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.