MADDOCK ERNEST E

UCTT

MADDOCK ERNEST E serves as Director at Ultra Clean Holdings, Inc. (UCTT). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

5 trades

$478.4K

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$478.4K

Companies Traded

UCTT, OUSTZ, TER

Active Period

Aug 2023 – Mar 2025

5 total trades

Most Recent

Buy UCTT

Mar 7, 2025 · $242.9K

MADDOCK ERNEST E's Insider Trading at Ultra Clean Holdings, Inc. (UCTT)

Buys

1 · $242.9K

Sells

0 · $0.00

Total Shares Bought

10,000

Total Shares Sold

UCTT Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 7, 2025	Buy	10,000	$24.29	$242.9K	0

MADDOCK ERNEST E's Insider Trading at Ouster, Inc. Warrants (OUSTZ)

Buys

3 · $141.5K

Sells

0 · $0.00

Total Shares Bought

22,000

Total Shares Sold

OUSTZ Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 19, 2024	Buy	8,000	$7.79	$62.3K	69,119
Nov 16, 2023	Buy	7,000	$5.29	$37.0K	45,924
Aug 22, 2023	Buy	7,000	$6.02	$42.1K	38,924

MADDOCK ERNEST E's Insider Trading at Teradyne, Inc. (TER)

Buys

1 · $94.1K

Sells

0 · $0.00

Total Shares Bought

1,000

Total Shares Sold

TER Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 5, 2024	Buy	1,000	$94.07	$94.1K	4,728

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TERSell · Apr 9, 2026

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TERSell · Apr 7, 2026

Gregory Stephen Smith

President and CEO

TERSell · Feb 2, 2026

Jean Pierre Hathout

President, Teradyne Robotics

TERSell · Feb 2, 2026

Ryan Driscoll

VP, General Counsel, Secretary

TERSell · Feb 2, 2026

IBNALE DAVID T

Director

UCTTSell · Dec 3, 2025

Megan Chung

General Counsel and Secretary

OUSTZSell · Oct 17, 2025

Mark Frichtl

Chief Technology Officer

OUSTZSell · Sep 16, 2025

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