Boston Trust Walden Corp Reduces Stock Position in Amphastar Pharmaceuticals, Inc. $AMPH
Boston Trust Walden Corp lessened its stake in shares of Amphastar Pharmaceuticals, Inc. (NASDAQ:AMPH - Free Report) by 7.3% in the fourth quarter, according to the company in its most recent 13F filing with the Securities and Exchange Commission. The institutional investor owned 1,087,266 shares...