Joe Mastrangelo

Joe Mastrangelo (chief executive) discloses dealings in Eos Energy Enterprises, Inc. to SEC (Form 4). Over a trading history stretching from 18 November 2020 to 16 September 2026, the count stands at 35 filings.

On the open market, the record shows 8 purchases worth €890k and 5 sales worth €4.4M. Netting one side against the other leaves €3.5M of net selling. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Besides market trades, the filings include 9 share grants and 13 option exercises. In 2026 alone, the filings show 2 purchases and 2 sales.

In size, the median ticket on the buying side is €82k. Clusters matter here: 5 out of 8 purchases overlapped with buying by a colleague within 30 days. Purchases made close together by different insiders form what is called a cluster.

The latest filing, published on 16 September 2026, reports a share grant in Eos Energy Enterprises, Inc. The clock since the last published purchase (5 March 2026) now reads 233 days. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. For comparison, the SEC allows two business days to file a Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.