Dir
Thomas St. Dennis is a seasoned technology executive and corporate director in the semiconductor and electronic technology sectors, currently serving as an Independent Director of Axcelis Technologies, Inc. (ACLS), where he has been on the board since 2015.[[1]](https://www.marketscreener.com/insider/THOMAS-ST-DENNIS-A01NO9/)[[7]](https://investor.axcelis.com/corporate-governance/board-of-directors) In regulatory filings related to Axcelis insider transactions, his name appears in the form “St Dennis Thomas”, but public company and governance records consistently identify him as Thomas St. Dennis, an individual director and corporate insider.[[1]](https://www.marketscreener.com/insider/THOMAS-ST-DENNIS-A01NO9/)[[3]](https://www.gurufocus.com/insider/691/dennis-thomas-st)[[6]](https://investor.axcelis.com/sec-filings/sec-filing/4/0001339595-26-000006)[[7]](https://investor.axcelis.com/corporate-governance/board-of-directors) He also serves as Chairman of the Board at FormFactor, Inc., a leading provider of semiconductor wafer test technologies, a role he has held on the board since 2010 and as chair since 2013 (including a period as Executive Chair and former Chairman & CEO).[[1]](https://www.marketscreener.com/insider/THOMAS-ST-DENNIS-A01NO9/)[[2]](https://ir.veeco.com/corporate-governance-esg/directors/person-details/default.aspx?ItemId=037b7677-7b40-4e10-a6b7-34acfc288d32)[[4]](https://www.formfactor.com/company/board-of-directors/)
Across his career, St. Dennis has held senior leadership roles at several prominent technology companies, including President & CEO of Wind River Systems, Inc. (1999–2003), Executive Vice President of Sales & Marketing at Novellus Systems, Inc. (2003–2005), and Senior Vice President & General Manager of the Silicon Systems Group at Applied Materials, Inc. (most recently from 2005–2009), following earlier executive roles at Applied Materials and Silicon Systems, Inc.[[1]](https://www.marketscreener.com/insider/THOMAS-ST-DENNIS-A01NO9/)[[2]](https://ir.veeco.com/corporate-governance-esg/directors/person-details/default.aspx?ItemId=037b7677-7b40-4e10-a6b7-34acfc288d32) He also serves or has served as a director at Veeco Instruments Inc., AMCC Enterprise Corp., and Mattson Technology, Inc.[[1]](https://www.marketscreener.com/insider/THOMAS-ST-DENNIS-A01NO9/)[[2]](https://ir.veeco.com/corporate-governance-esg/directors/person-details/default.aspx?ItemId=037b7677-7b40-4e10-a6b7-34acfc288d32)[[4]](https://www.formfactor.com/company/board-of-directors/)[[5]](https://www.sec.gov/Archives/edgar/data/1113232/000104746921000721/a2242987zdef14a.htm) St. Dennis holds both his undergraduate and graduate degrees from the University of California, Los Angeles (UCLA), earned in 1980, and is regarded as a proven technology leader with extensive experience in systems, software, semiconductor equipment, product development, manufacturing, and international distribution.[[1]](https://www.marketscreener.com/insider/THOMAS-ST-DENNIS-A01NO9/)[[2]](https://ir.veeco.com/corporate-governance-esg/directors/person-details/default.aspx?ItemId=037b7677-7b40-4e10-a6b7-34acfc288d32)
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