Ernest e. Maddock

Ernest e. Maddock, listed as board member, has filed trades across 6 companies (mainly through SEC (Form 4)), most often in Teradyne, Inc, Ouster, Inc. and Ultra Clean Holdings, Inc. Between 21 January 2016 and 25 September 2026, the trades on record add up to 33 filings.

Every open-market trade on record is a purchase: 7 purchases worth €466k, and no sale. No amount is published for 1 filing, which the totals therefore leave out. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Other entries cover 15 share grants and 2 option exercises.

In size, the median ticket on the buying side is €48k. 3 out of 7 purchases came within 30 days of a purchase by at least one other insider of the same company. Purchases made close together by different insiders form what is called a cluster.

Most recently, on 28 September 2026, the filings show a transaction in Teradyne, Inc. The latest purchase dates back some time: it was published 586 days ago, on 11 March 2025. The median gap between a trade and its publication by SEC (Form 4) is 3 days. 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.