Insider Trading & Ownership of Ernest E. Maddock

Location: Fremont, CA
Summary: The estimated net worth of Ernest E. Maddock is at least $4M dollars as of October 1, 2025. Ernest E. Maddock is the Director of TERADYNE, INC and owns shares of TERADYNE, INC (TER) stock worth about $1.11M. 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 $921K. Ernest E. Maddock is the Director of AVNET INC and owns shares of AVNET INC (AVT) stock worth about $894K.
Signature: /s/ Ryan E. Driscoll, Attorney-in-Fact
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Ownership of Ernest E. Maddock

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
TER	TERADYNE, INC	Director	$1.11M			Sep 29, 2025
UCTT	Ultra Clean Holdings, Inc.	Director	$1.08M	+$243K	+29%	May 21, 2025
OUST, OUSTW	Ouster, Inc.	Director	$921K			Jun 18, 2025
AVT	AVNET INC	Director	$894K			Sep 26, 2025
VLDR	Velodyne Lidar, Inc.	Director				Feb 10, 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.