![Thomas St. Dennis](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>)
Thomas St. Dennis
Chairman at
FORMFACTOR, INC.
Net worth: 13 M $ as of 29/06/2026
Profile
Mr. Thomas St. Dennis is an Independent Director at Veeco Instruments, Inc., an Independent Non-Executive Director at Axcelis Technologies, Inc. and a Chairman at FormFactor, Inc. He is on the Board of Directors at Veeco Instruments, Inc., Axcelis Technologies, Inc. and AMCC Enterprise Corp.
Mr. St. Dennis was previously employed as an Independent Director by Mattson Technology, Inc., a Senior VP & General Manager-Silicon Systems Group by Applied Materials, Inc., an Executive Vice President-Sales & Marketing by Novellus Systems, Inc., a President & Chief Executive Officer by Wind River Systems, Inc., a Principal by Applied Materials, Inc., and a Senior Vice President & General Manager by Silicon Systems, Inc. He received his undergraduate degree from the University of California, Los Angeles and a graduate degree from the University of California, Los Angeles.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 10/05/2026 | 61,697 ( 0.1% ) | 5 M $ | 29/06/2026 | |
FORMFACTOR, INC. 0.04% | 15/06/2026 | 28,333 ( 0.04% ) | 5 M $ | 29/06/2026 |
| 21/05/2026 | 17,695 ( 0.06% ) | 3 M $ | 29/06/2026 |
Thomas St. Dennis active positions
| Companies | Position | Start |
|---|---|---|
| FORMFACTOR, INC. | Chairman | 23/10/2013 |
| AXCELIS TECHNOLOGIES, INC. | Director/Board Member | 30/04/2015 |
| VEECO INSTRUMENTS INC. | Director/Board Member | 04/05/2016 |
AMCC Enterprise Corp.
 AMCC Enterprise Corp. Computer PeripheralsElectronic Technology Designs, markets and sells a broad range of Fiber Channel host bus adapters that connect servers and data storage devices | Director/Board Member | - |
Former positions of Thomas St. Dennis
| Companies | Position | End |
|---|---|---|
| MATTSON TECHNOLOGY, INC. | Director/Board Member | 30/04/2016 |
| APPLIED MATERIALS, INC. | Corporate Officer/Principal | 01/10/2009 |
Novellus Systems, Inc.
 Novellus Systems, Inc. Industrial MachineryProducer Manufacturing Manufactures and services advanced automated wafer fabrication systems | Sales & Marketing | 31/12/2004 |
Wind River Systems, Inc.
 Wind River Systems, Inc. Packaged SoftwareTechnology Services Provides AI software that transforming market segments ranging from aerospace to industrial, defense to medical and telecom to automotive | Chief Executive Officer | 31/12/2002 |
| APPLIED MATERIALS, INC. | Corporate Officer/Principal | 31/12/1998 |
Training of Thomas St. Dennis
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
80
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
Applied Materials, Inc.
 Applied Materials, Inc. Industrial MachineryProducer Manufacturing Designs and manufactures semiconductor systems & develops spares and factory automation software | Producer Manufacturing |
Novellus Systems, Inc.
Novellus Systems, Inc. Industrial MachineryProducer Manufacturing Manufactures and services advanced automated wafer fabrication systems | Producer Manufacturing |
Veeco Instruments, Inc.
 Veeco Instruments, Inc. Electronic Production EquipmentElectronic Technology Designs, manufactures and markets equipment for light emitting diodes & hard disk drives | Electronic Technology |
Mattson Technology, Inc.
 Mattson Technology, Inc. SemiconductorsElectronic Technology Designs, manufactures and markets semiconductor wafer processing equipment used in the fabrication of integrated circuits | Electronic Technology |
Wind River Systems, Inc.
Wind River Systems, Inc. Packaged SoftwareTechnology Services Provides AI software that transforming market segments ranging from aerospace to industrial, defense to medical and telecom to automotive | Technology Services |
AMCC Enterprise Corp.
AMCC Enterprise Corp. Computer PeripheralsElectronic Technology Designs, markets and sells a broad range of Fiber Channel host bus adapters that connect servers and data storage devices | Electronic Technology |
Axcelis Technologies, Inc.
 Axcelis Technologies, Inc. Industrial MachineryProducer Manufacturing Manufactures semiconductor equipment | Producer Manufacturing |
FormFactor, Inc.
 FormFactor, Inc. SemiconductorsElectronic Technology Designs, develops, manufactures, sells and supports semiconductor wafer probe card products and solutions | Electronic Technology |
Silicon Systems, Inc.
 Silicon Systems, Inc. SemiconductorsElectronic Technology Produces and sells semiconductor devices | Electronic Technology |
University of California, Los Angeles
 University of California, Los Angeles Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
- Stock Market
- Insiders
- Thomas St. Dennis
