Insider Trading & Ownership of Ernest E. Maddock

Location: North Reading, MA
Summary: The estimated net worth of Ernest E. Maddock is at least $6,010,990 dollars as of 17 Mar 2026. Ernest E. Maddock is the Director of TERADYNE, INC and owns shares of TERADYNE, INC (TER) stock worth about $3.16M. Ernest E. Maddock is the Director of Ultra Clean Holdings, Inc. and owns shares of Ultra Clean Holdings, Inc. (UCTT) stock worth about $1.08M. Ernest E. Maddock is the Director of Ouster, Inc. and owns shares of Ouster, Inc. (OUST) stock worth about $920.9K. Ernest E. Maddock is the Director of AVNET INC and owns shares of AVNET INC (AVT) stock worth about $852K.
Signature: /s/ Ryan E. Driscoll, Attorney-in-Fact
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Ownership of Ernest E. Maddock

Symbol	Company	Relationship	Holdings Value	Report Period
TER	TERADYNE, INC	Director	$3,158,276	13 Mar 2026
UCTT	Ultra Clean Holdings, Inc.	Director	$1,079,827	21 May 2025
OUST, OUSTZ	Ouster, Inc.	Director	$920,896	18 Jun 2025
AVT	AVNET INC	Director	$851,991	02 Jan 2026
VLDR	Velodyne Lidar, Inc.	Director		10 Feb 2023

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.