Biotech Stock Roundup: XLRN Up on Takeover Rumor, NVAX, BIIB Offer Updates & More Posted byZacks Equity Research September 29, 2021 Leave a comment on Biotech Stock Roundup: XLRN Up on Takeover Rumor, NVAX, BIIB Offer Updates & More Regulatory and pipeline updates from bigwigs like Biogen (BIIB) and Novavax (NVAX) have been some of the key highlights in the biotech sector during t…