![Ernest Maddock](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Ernest Maddock
Director/Board Member at
ULTRA CLEAN HOLDINGS, INC.
Net worth: 13 M $ as of 2026-05-30
Profile
Ernest E.
Maddock is an Independent Director at Avnet, Inc. since 2021, Teradyne, Inc. since 2022, Ultra Clean Holdings, Inc. since 2018, and Ouster, Inc. since 2023.
He is also a Director at Silvaco, Inc. since 2021.
Former roles include Independent Director at Velodyne Lidar, Inc. from 2022 to 2023, Chief Financial Officer & Senior Vice President at Micron Technology, Inc. from 2015 to 2018, Independent Director at Intersil Corp.
from 2015 to 2017, Chief Financial Officer & Executive Vice President at Riverbed Technology LLC from 2013 to 2015, Chief Accounting Officer at Lam Research Corp.
from 1997 to 2013, Director-Supervisory Board at Novaled GmbH in 2013, Director at Micron Technology Taiwan, Inc., Director at NCR Voyix Corp., and MD-Global Logistics & Repair Services Operations at NCR Voyix Corp.
Education includes undergraduate studies at Georgia Institute of Technology and an MBA from Georgia State University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-21 | 58,816 ( 0.13% ) | 5 M $ | 2026-05-30 | |
OUSTER, INC. 0.14% | 2026-06-16 | 88,902 ( 0.14% ) | 4 M $ | 2026-05-30 |
TERADYNE, INC. 0.01% | 2026-06-11 | 10,267 ( 0.01% ) | 4 M $ | 2026-05-30 |
AVNET, INC. 0.01% | 2026-06-16 | 5,265 ( 0.01% ) | 457 686 $ | 2026-05-30 |
Ernest Maddock active positions
| Companies | Position | Start |
|---|---|---|
| ULTRA CLEAN HOLDINGS, INC. | Director/Board Member | 2018-05-31 |
| AVNET, INC. | Director/Board Member | 2021-08-24 |
| TERADYNE, INC. | Director/Board Member | 2022-11-13 |
| OUSTER, INC. | Director/Board Member | 2023-02-09 |
Silvaco, Inc.
 Silvaco, Inc. Packaged SoftwareTechnology Services Develops software solutions for semiconductor and photonics design | Director/Board Member | 2021-05-17 |
Former positions of Ernest Maddock
| Companies | Position | End |
|---|---|---|
| VELODYNE LIDAR | Director/Board Member | 2023-02-09 |
| MICRON TECHNOLOGY, INC. | Director of Finance/CFO | 2018-02-18 |
| INTERSIL CORP | Director/Board Member | 2017-02-23 |
| RIVERBED TECHNOLOGY, INC. | Director of Finance/CFO | 2014-12-31 |
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Training of Ernest Maddock
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
57
1st degree connections
15
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 15 |
|---|---|
Avnet, Inc.
 Avnet, Inc. Electronics DistributorsDistribution Services Distributes electronic components, enterprise computing and storage products, and embedded subsystems | Distribution Services |
Lam Research Corp.
 Lam Research Corp. Industrial MachineryProducer Manufacturing Designs, manufactures, markets, refurbishes and services wafer-fabrication equipment for semiconductor industry | Producer Manufacturing |
Micron Technology, Inc.
 Micron Technology, Inc. SemiconductorsElectronic Technology Manufactures DRAM, NAND and NOR memory and storage products for data centers, networking, mobile, PC, graphics & intelligence sectors | Electronic Technology |
Teradyne, Inc.
 Teradyne, Inc. Electronic Production EquipmentElectronic Technology Designs, manufactures, markets and services electronic test systems | Electronic Technology |
NCR Voyix Corp.
 NCR Voyix Corp. Packaged SoftwareTechnology Services Provides digital commerce solutions for retail stores and restaurants | Technology Services |
Intersil Corp.
 Intersil Corp. SemiconductorsElectronic Technology Designs and manufactures analog semiconductors | Electronic Technology |
Ultra Clean Holdings, Inc.
 Ultra Clean Holdings, Inc. Industrial MachineryProducer Manufacturing Designs, engineers and manufactures gas & liquid delivery systems for semiconductor process equipment manufacturers and device makers | Producer Manufacturing |
Micron Technology Taiwan, Inc.
 Micron Technology Taiwan, Inc. Electronics DistributorsDistribution Services Manufactures and supplies dynamic random-access memory (DRAM) | Distribution Services |
Riverbed Technology LLC
 Riverbed Technology LLC Packaged SoftwareTechnology Services Builds software platforms and tools that collect and analyze data across an organization’s network, applications, cloud and user devices | Technology Services |
Silvaco, Inc.
Silvaco, Inc. Packaged SoftwareTechnology Services Develops software solutions for semiconductor and photonics design | Technology Services |
Georgia Institute of Technology
 Georgia Institute of Technology Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Georgia State University
 Georgia State University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Novaled GmbH
 Novaled GmbH Electronic Production EquipmentElectronic Technology Designs and develops organic light-emitting diode technologies | Electronic Technology |
Velodyne Lidar, Inc.
 Velodyne Lidar, Inc. SemiconductorsElectronic Technology Designs and sells advanced LiDAR sensors and systems for autonomous vehicles, robotics, mapping & smart infrastructure | Electronic Technology |
Ouster, Inc.
 Ouster, Inc. SemiconductorsElectronic Technology Develops and manufactures digital lidar sensors | Electronic Technology |
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