Zygo Corp. said late Monday that Chris L. Koliopoulos had resigned as chairman and chief executive officer effective immediately, by mutual agreement with the company’s board.
The Middlefield-based maker of precision optics and optical measuring equipment named former CEO Gary K. Willis as interim CEO and Michael A. Kaufman as chairman. No reason was given for the change in a written release from Zygo.
Carol Wallace, a Zygo director and CEO of Middlefield-based Cooper-Atkins Corp., said in the release that the board is “focused on achieving Zygo’s full potential for the benefit of our shareholders, and continuing to enhance Zygo’s leadership position in its markets. We believe that Mr. Willis has the requisite experience and leadership qualities to lead the company forward.”
Koliopoulos joined Zygo as CEO in January, 2010 and was named chairman a month later. An expert in optical interferometry — measuring waves of electricity — he holds a doctorate and had long competed against Zygo, launching two companies and heading a third.
Koliopoulos, listed as age 60 in last month’s annual report, led Zygo’s expansion in California and Taiwan in its post-recession recovery, returning yearly operating profit to nearly $30 million in the fiscal year ending June 30, 2012. But in the recent fiscal year, sales slipped to $149 million to $167 million and operating profit fell to $12 million.
Shares of Zygo closed at $16.24 on the Nasdaq Monday before the announcement, ahead of the 12-month average of $15.56, and up more than 60 percent from the time Koliopoulos arrived — the same month when Zygo rejected a takeover offer of $10 a share.
“It has been a privilege for me to work with many fine colleagues at Zygo” he said in the release. “I am proud of Zygo’s many accomplishments, and look forward to its continued success.”
Willis has helped make Zygo a homegrown Connecticut success story in technology. He has been a board member from 1992 to 2000 including two years as chairman, and from 2009 to the present. He was the Zygo CEO from 1993 through 1999.
Zygo last month named Tony Allan as chief operating officer. He joined the company in February as senior vice president. It’s unclear whether he’ll be a candidate to lead the company.