Insiders / Maddock Ernest E

Maddock Ernest E

CIK 1227050personinsider

Companies

4

First seen

Jan 5, 2026

Last activity

Jun 22, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Ouster, Inc. · OUST	Director	88,902	88,902	1	—
Ultra Clean Holdings Inc · UCTT	Director	47,816	47,816	1	—
Teradyne, Inc · TER	Director	10,267	10,267	3	—
Avnet Inc · AVT	Director	—	16,290	3	—

All securities held

4 positions · latest reported per filing

Company	Security	Shares	As of
Avnet Inc	Phantom Stock UnitsDerivative	16,290	Jun 17, 2026
Ouster, Inc.	Common Stock	88,902	Jun 17, 2026
Teradyne, Inc	Common Stock	10,267	Jun 12, 2026
Ultra Clean Holdings Inc	Common Stock	47,816	May 22, 2026

Activity

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Jun 17, 2026	Grant	OUST Ouster, Inc. Common Stock	$0	+5K +5.61%	88,902 0.12% of shares	low
Jun 12, 2026	Other	TER Teradyne, Inc Common Stock	$0	+2 +0.02%	10,267 <0.01% of shares	low
May 22, 2026	Grant	UCTT Ultra Clean Holdings Inc Common Stock	$0	+3K +5.69%	47,816 0.11% of shares	low
May 8, 2026	Grant	TER Teradyne, Inc Common Stock	$0	+668 +6.96%	10,265 <0.01% of shares	low
Mar 13, 2026	Other	TER Teradyne, Inc Common Stock	$0	+2 +0.02%	9,597 <0.01% of shares	low
Jun 17, 2026	Grant	AVT Avnet Inc Phantom Stock Units	—	+62 +0.38%	16,290 0.02% of shares	low
Mar 18, 2026	Grant	AVT Avnet Inc Phantom Stock Units	—	+94 +0.58%	16,228 0.02% of shares	low
Jan 2, 2026	Grant	AVT Avnet Inc Phantom Stock Units	—	+4K +33.83%	16,134 0.02% of shares	low