CLINTON TWP — II-VI Inc. announced Wednesday that chief financial officer Craig Creaturo has resigned to pursue other interests.

Creaturo will remain in his current position until a successor is appointed, and he will continue to assist the company as an employee through Feb. 28. After that, he will be an adviser to the company for six months to ensure a smooth transition, according to a company news release.

The company has started a search for new CFO.

President and CEO Francis Kramer said in the release, “Craig has been a valuable employee of II-VI since he joined us over 15 years ago and has been a trusted colleague of mine since he became an officer of the company in 2000.”

With its headquarters on Saxonburg Boulevard, II-VI makes engineered materials and optoelectronic components.

NEW YORK — Twitter’s public stock debut, set for this morning on the New York Stock Exchange, has been carefully orchestrated to avoid the glitches and eventual letdown that surrounded Facebook’s initial public offering 18 months ago.Twitter set a price of $26 per share for its initial public offering on Wednesday evening and will begin trading today under the ticker symbol “TWTR” in the most highly anticipated IPO since its Silicon Valley rival’s 2012 debut.The price values Twitter at more than $18 billion based on its outstanding stock, options and restricted stock expected to be available after the IPO. That’s more than Macy’s, which has a market capitalization of $17 billion, and Bed Bath & Beyond, which is valued at around $16 billion. Facebook’s value, meanwhile, stood at $104 billion at the time of its IPO.Twitter, named after the sound of a chirping bird, got its start 7 years ago, first with Jack Dorsey and then Evan Williams as CEO. Its current chief is Dick Costolo.