Michael O. Randolfi

Filings by Michael O. Randolfi span 3 companies, the busiest being Groupon, Inc., Sabre Corp and Covista Inc. We count 53 filings; the first trade dates from 14 February 2017 and the latest from 15 September 2025.

No open-market sale appears; the market trades are 4 purchases worth €1.5M. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Outside the open market, there are 34 share grants and 15 option exercises.

In size, the median ticket on the buying side is €245k. Of 4 purchases, 2 formed part of a group of insiders buying within 30 days of each other. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.

Most recently, on 17 September 2025, the filings show a share grant worth €23k in Sabre Corp. The last purchase on record was published on 6 May 2024, which is 898 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 3 days. For comparison, the SEC allows two business days to file a Form 4. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.