Matthew M. Walsh

Matthew M. Walsh is a declared insider at 2 companies (finance chief); the most frequent names are Organon & Co. and Certara, Inc. We count 29 filings; the first trade dates from 10 December 2020 and the latest from 14 May 2026.

The open-market side counts 2 purchases for €184k alongside 1 sale for €172k. Netting one side against the other leaves €11k of net buying. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. The rest of the record consists of 8 share grants and 17 option exercises.

The record was last updated on 15 May 2026 with an option exercise in Certara, Inc. The last purchase on record was published on 6 May 2025, which is 536 days ago. 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. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.