Frank Witney

Frank Witney is a declared insider at 5 companies (board member); the most frequent names are Cerus Corp, Revvity, Inc. and Standard Biotools Inc. Between 31 December 2015 and 2 June 2026, the trades on record add up to 21 filings.

Purchases make up the whole of the open-market record (1 purchase, €35k). 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 19 share grants and 1 option exercise.

Most recently, on 2 June 2026, the filings show a share grant in Cerus Corp. The clock since the last published purchase (10 May 2024) now reads 891 days. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. 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.