Newtyn Management LLC reduced its holdings in shares of ARCA biopharma, Inc. (NASDAQ:ABIO – Free Report) by 4.2% in the 3rd quarter, according to its most recent filing with the Securities & Exchange Commission. The institutional investor owned 300,000 shares of the biopharmaceutical company’s stock after selling 13,200 shares during the quarter. Newtyn Management LLC’s […]