Public Exits

Renewable Energy Group Inc., a Ralston, Iowa-based biodiesel producer, has canceled its IPO, citing “current market conditions.” The company had filed last July to raise $150 million, with Credit Suisse serving as lead underwriter. Natural Gas Partners led a $100 million Series A round for REG in 2006, with Bunge North America, ED&F Man Holdings and West Central Cooperative also participating.

Heritage-Crystal Clean Inc., an Elgin, Ill.-based provider of parts cleaning services and containerized waste services, raised around $22 million in its IPO. It priced 1.91 million common shares at $11.50 per share, and closed up at $14.19 on its first day of trading. William Blair & Co. and Piper Jaffray served as co-lead underwriters. Bruckmann Rosser Sherrill & Co. held a 13 percent pre-IPO stake.