Iris Dorbian

Trinseo SA, a plastics maker that is backed by Bain Capital, has priced its IPO of 10 million shares at between $17 and $19 per share. The company plans on listing the stock on the NYSE under the ticker symbol "TSE." Goldman Sachs, Deutsche Bank Securities, Citigroup and Morgan Stanley are serving as lead underwriters.

Industrial Magnetics, a portfolio company of River Associates Investments, has acquired Prater-Sterling. No financial terms were disclosed. Based in Bolingbrook, Illinois, Prater-Sterling is a provider of particle processing solutions.

Accel-KKR has acquired a majority stake in HighWire Press. No financial terms were disclosed. Stanford University, which founded HighWire Press in 1995, will retain its "significant" minority stake. Based in Redwood City, Calif., HighWire Press is a provider of tech solutions to scholarly publishers.

Ignyta has hired Dr. Jacob Chacko as chief financial officer. He replaces Zachary Hornby, who has become the firm's chief operating officer. Previously, Chacko worked at TPG Capital where he served as a vice president focused mostly on healthcare and digital media. Based in San Diego, Calif., Ignyta is a biotech firm that is developing precision medicine focused on treating cancer patients.

Deere & Company has closed the sale of its irrigation operations to Israeli private equity firm FIMI Opportunity Funds. No financial terms were disclosed. Headquartered in Moline, Illinois, Deere & Company is a maker of agricultural machinery.

Retailer chain 99 Cents Only Stores, which is owned by Ares Management and Canada Pension Plan Investment Board, has named Christopher A. Laurence as an interim chief financial officer, treasurer and secretary. Previously, Laurence worked at ThreeSixty Group, where he served as CEO for the past six years.

Investment bank Brookfield Financial has hired Dan McNulty as a partner. Previously, McNulty worked at Rockwood Real Estate Advisers where he served as president. He was also co-head of business development at Auction.com.

STACI, a portfolio company of MCM, has been sold to Centre Lane Partners. No financial terms were disclosed. Lincoln International served as financial advisor to STACI on the transaction. Headquartered in LaGrange, Ohio, STACI is a provider of electronic manufacturing services and custom engineered products.

Calvert Investments said Friday that Barbara Krumsiek will step down as president and CEO, effective December 31, 2014. Krumsiek will remain as chair of the board of directors. Bill Lester, executive vice president of Ameritas Holding Company, the parent company of Calvert Investments, will lead the search for a new CEO. Based in Bethesda, Maryland, Calvert Investments is an investment management firm.

Audit, tax and advisory firm KPMG has agreed to acquire Rothstein Kass. No financial terms were disclosed for the deal, which is expected to be completed in the coming weeks. As a result of the transaction, most of the principals and employees of Rothstein Kass will join KPMG. Based in Roseland, NJ, Rothstein Kass is a professional services provider for the hedge fund sector.