MADDOCK ERNEST E

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Director at TERADYNE, INC · on record since May 12, 2026
Chief Financial Officer at Riverbed Technology, Inc. · on record since May 8, 2013
Director at Ultra Clean Holdings, Inc. · on record since May 27, 2026
Director at INTERSIL CORP/DE · on record since Jul 9, 2015
Group VP, Global Operations at LAM RESEARCH CORP · on record since Nov 17, 2004
SVP & Chief Financial Officer at MICRON TECHNOLOGY INC · on record since Aug 15, 2017
Director at AVNET INC · on record since Aug 26, 2021
Director at Velodyne Lidar, Inc. · on record since Jan 18, 2022
Director at Ouster, Inc. · on record since Feb 14, 2023

Insider trading activity of MADDOCK ERNEST E

Transactions on record: 179; since Aug 18, 2003

Purchases: 12; $974.2K

Sales: 21; $6.3M

Companies traded: 9; last filing Sep 28, 2026

Figures computed from official regulatory filings — .

Companies where MADDOCK ERNEST E has traded

TERADYNE, INC16 tx · $94.1K · Sep 28, 2026
AVNET INC21 tx · $106.3K · Sep 25, 2026
Ouster, Inc.9 tx · $141.5K · Jun 22, 2026
Ultra Clean Holdings, Inc.11 tx · $256.3K · May 27, 2026
Velodyne Lidar, Inc.9 tx · $49.9K · Feb 13, 2023
MICRON TECHNOLOGY INC21 tx · $1.3M · Oct 26, 2017
10 tx · Feb 28, 2017
12 tx · $537.2K · Apr 28, 2015
70 tx · $14.5M · Mar 6, 2013

Track record of MADDOCK ERNEST E

Statistical track record

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Purchases: 12

Last buy: Mar 7, 2025

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Transaction history of MADDOCK ERNEST E

Co-insiders of MADDOCK ERNEST E

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
TERADYNE, INCListing on record	Sep 28, 2026	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Sep 25, 2026	AwardD (derivative)	60	110.17 USD	$6.6K	Unusual size	SEC
AVNET INCListing on record	Jun 22, 2026	AwardD (derivative)	62	90.91 USD	$5.6K	Unusual size	SEC
Ouster, Inc.Listing on record	Jun 22, 2026	Award	4,725	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Jun 16, 2026	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ultra Clean Holdings, Inc.Listing on record	May 27, 2026	Award	2,575	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	May 12, 2026	Award	668	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Mar 19, 2026	AwardD (derivative)	94	59.96 USD	$5.6K	Unusual size	SEC
TERADYNE, INCListing on record	Mar 17, 2026	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Jan 5, 2026	AwardD (derivative)	4,078	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Dec 19, 2025	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Dec 18, 2025	AwardD (derivative)	87	48.62 USD	$4.2K		SEC
TERADYNE, INCListing on record	Oct 1, 2025	Other	3	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Sep 29, 2025	AwardD (derivative)	80	51.60 USD	$4.1K	Unusual size	SEC
Ouster, Inc.Listing on record	Jun 20, 2025	Award	13,558	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Jun 20, 2025	AwardD (derivative)	76	51.54 USD	$3.9K	Unusual size	SEC
Ouster, Inc.Listing on record	Jun 20, 2025	Award	1,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Jun 17, 2025	Other	6	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ultra Clean Holdings, Inc.Listing on record	May 23, 2025	Award	8,198	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	May 13, 2025	Award	2,971	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Mar 20, 2025	AwardD (derivative)	78	49.26 USD	$3.8K	Unusual size	SEC
TERADYNE, INCListing on record	Mar 18, 2025	Other	3	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ultra Clean Holdings, Inc.Listing on record	Mar 11, 2025	Buy	10,000	24.29 USD	$242.9K	conv 84ClusterUnusual size	SEC
AVNET INCListing on record	Jan 3, 2025	AwardD (derivative)	3,442	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Dec 20, 2024	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
TERADYNE, INCListing on record	Sep 28, 2026	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Sep 25, 2026	AwardD (derivative)	60	110.17 USD	$6.6K	Unusual size	SEC
AVNET INCListing on record	Jun 22, 2026	AwardD (derivative)	62	90.91 USD	$5.6K	Unusual size	SEC
Ouster, Inc.Listing on record	Jun 22, 2026	Award	4,725	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Jun 16, 2026	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ultra Clean Holdings, Inc.Listing on record	May 27, 2026	Award	2,575	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	May 12, 2026	Award	668	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Mar 19, 2026	AwardD (derivative)	94	59.96 USD	$5.6K	Unusual size	SEC
TERADYNE, INCListing on record	Mar 17, 2026	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Jan 5, 2026	AwardD (derivative)	4,078	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Dec 19, 2025	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Dec 18, 2025	AwardD (derivative)	87	48.62 USD	$4.2K		SEC
TERADYNE, INCListing on record	Oct 1, 2025	Other	3	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Sep 29, 2025	AwardD (derivative)	80	51.60 USD	$4.1K	Unusual size	SEC
Ouster, Inc.Listing on record	Jun 20, 2025	Award	13,558	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Jun 20, 2025	AwardD (derivative)	76	51.54 USD	$3.9K	Unusual size	SEC
Ouster, Inc.Listing on record	Jun 20, 2025	Award	1,500	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Jun 17, 2025	Other	6	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ultra Clean Holdings, Inc.Listing on record	May 23, 2025	Award	8,198	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	May 13, 2025	Award	2,971	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AVNET INCListing on record	Mar 20, 2025	AwardD (derivative)	78	49.26 USD	$3.8K	Unusual size	SEC
TERADYNE, INCListing on record	Mar 18, 2025	Other	3	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Ultra Clean Holdings, Inc.Listing on record	Mar 11, 2025	Buy	10,000	24.29 USD	$242.9K	conv 84ClusterUnusual size	SEC
AVNET INCListing on record	Jan 3, 2025	AwardD (derivative)	3,442	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TERADYNE, INCListing on record	Dec 20, 2024	Other	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC