Rich Hossfeld

All filings by Rich Hossfeld on record concern ESS Tech, Inc. We count 7 filings; the first trade dates from 16 May 2023 and the latest from 13 October 2025.

Purchases make up the whole of the open-market record (3 purchases, €9,080). Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 3 share grants.

Half of the purchases are above €1,534 and half below. Clusters matter here: 1 out of 3 purchases overlapped with buying by a colleague within 30 days. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.

Most recently, on 15 October 2025, the filings show a share grant in ESS Tech, Inc. The clock since the last published purchase (18 March 2024) now reads 965 days. Typically, a trade is published a median of 3 days after it takes place. Section 16 rules allow two business days to file each Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.