ROCKVILLE, Md.--(BUSINESS WIRE)--Human Genome Sciences, Inc. (NASDAQ: HGSI) (“HGS” or the “Company”) announced today that its Board of Directors has adopted a Stockholder Rights Plan (the “Rights Plan”) and declared a dividend of one share purchase right (a “Right”) for each share of HGS’s common stock (the “Common Stock”) held of record at the close of business on May 29, 2012.
