Quintiles IMS Holdings Inc. priced an underwritten, secondary public offering of 10,571,003 common shares.

The offering is being made by certain existing stockholders of the company.

Quintiles IMS Holdings, which is not offering stock nor receiving any proceeds, said it plans to repurchase from the underwriter about $300 million of the shares offered.

Morgan Stanley is acting as sole underwriter of the offering, which is expected to close May 31.