(NASDAQ: ALXN) dipped 10.4% to $100.51 after Amgen challenged patents for Soliris.

Prior to joining AGTC, Brian Krex was VP and global head of commercial and regulatory law with Alexion (ALXN).

(NASDAQ: ALXN) has made a public cash offer to acquire all outstanding shares in Sweden-based biopharmaceutical company Wilson Therapeutics by way of a tender offer, the company said.

Tickers featured: ALNY, ALXN, AMLN, ARRY, AZN, BAYRY, BIIB, EXEL, GENZ, GTXI, HGSI, LLY, MNKD, MNTA, NVS, OGXI, ONXX, REGN, RIGL, SNY, VRTX, ZIOP.

(Nasdaq: ALXN), Cheshire, Conn., has received written confirmation from the U.S.

(NASDAQ: ALXN) shares climbed 7.5% last Thursday on rumors of a potential buyout and have since given up all of those gains.

- The US Food and Drug Administration has accepted for priority review US-based biopharmaceutical company Alexion Pharmaceuticals, Inc.'s (NASDAQ: ALXN) supplemental Biologics License Application for Ultomiris (ravulizumab-cwvz), the company's long-acting C5 complement inhibitor, for the treatment of people with atypical hemolytic uremic syndrome in order to inhibit complement-mediated thrombotic microangiopathy, the company said.

Citi analyst Mohit Bansal assumed coverage of large-cap biotech stocks, assuming coverage with five Buy ratings -- Amgen (AMGN), Alexion Pharmaceuticals (ALXN), Vertex Pharmaceuticals (VRTX), Gilead Sciences (GILD), and BioMarin Pharmaceutical (BMRN) -- and two Neutral ratings -- Biogen (BIIB) and Regeneron Pharmaceuticals (REGN).

Tickers featured: ALXN, AUXL, AZN, CLDX, DNDN, GSK, KERX, MDVN, MRK, NKTR, PFE, POZN, RDEA, UTHR.

(Nasdaq: ALXN) have reported that the transplantation of immunoprotected pig neurons into non-human primate models of Parkinson's disease resulted in successful engraftment and function of the transplanted cells.