SHAREHOLDER INVESTIGATION: Halper Sadeh LLP Investigates XLRN, GSKY, GWB, VLY, NOTV; Shareholders are Encouraged to Contact the Firm

NEW YORK, Oct. 7, 2021 /PRNewswire/ -- Halper Sadeh LLP, a global investor rights law firm, announces it is investigating the following companies:

Acceleron Pharma Inc. (NASDAQ: XLRN) concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to its sale to Merck & Co., Inc. for $180.00 per share in cash. If you are an Acceleron shareholder, click here to learn more about your rights and options.