(marketscreener.com) The Schall Law Firm, a national shareholder rights litigation firm, announces that it is investigating claims on behalf of investors in Alder BioPharmaceuticals, Inc. ("Alder" or "the Company") (NASDAQ: ALDR) for potential breaches of fiduciary duty on the part of its directors in connection with the pending sale of the...http://www.marketscreener.com/ALDER-BIOPHARMACEUTICALS-16421407/news/INVESTIGATION-ALERT-The-Schall-Law-Firm-Announces-it-is-Investigating-Claims-Against-Alder-BioPharm-29323036/?utm_medium=RSS&utm_content=20191001