Zynga expected to file IPO paperwork on Thursday: source

NEW YORK Wed Jun 29, 2011 4:20pm EDT

NEW YORK (Reuters) - Online social game company Zynga is expected to file paperwork for an initial public offering with the U.S. Securities and Exchange Commission on Thursday morning, a source familiar with the situation said.

The source declined to be named as the information is not public. Zynga declined to comment.

(Reporting by Clare Baldwin, editing by Bernard Orr)