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TERTeradyne

Ernest Maddock

Director at Teradyne, as of Sep 28, 2026No sales or purchases in the past 12 months.

Updated Oct 15, 2026 from SEC filings · covers Oct 16, 2025 to Oct 15, 2026
10K
shares held after the latest filing, Teradyne
Vested shares reported on Forms 3, 4 and 5 only. Not the insider's whole wealth.
4
companies filed for

Last filing: Sep 28, 2026. Most recent purchase on record: Aug 16, 2024.

Pattern

What the filings show, past 12 months. Nothing here rates or predicts.

Roles from filings

Every company we track where this person has filed, newest filing first.

CompanyTitleFirst filingLatest filing
Teradyne (TER)DirectorNov 16, 2022Sep 28, 2026
Ouster, Inc. (OUST)DirectorFeb 14, 2023Jun 22, 2026
Micron Technology (MU)Former SVP & Chief Financial OfficerJun 5, 2015Oct 26, 2017
Lam Research (LRCX)Former Chief Financial OfficerNov 17, 2004Mar 6, 2013

Also a director at

Ouster, Inc. (OUST)

Recent filings

The last 5 days with transactions, newest first, one line per trade date. Each number links to an SEC filing.

This page shows only what this person reported on SEC ownership filings. See the methodology. Spotted something wrong? Report an error.