Morphic Holding Inc., of Waltham, Mass., said it closed its IPO of 6.9 million common shares, including 900,000 shares sold for the full exercise of overallotments, at $15 apiece to raise $103.5 million. 

CNS Pharmaceuticals Inc., of Houston, filed an S-1 with the SEC for a proposed IPO to raise about $10 million by offering 2.1 million shares priced at $4 to $5 per share. Founded in 2017, CNS Pharmaceuticals is developing therapies for brain cancer and other central nervous system tumors. It is seeking a listing on Nasdaq under the ticker CNSP.

Mirati Therapeutics Inc., of San Diego, raised gross proceeds of $234.2 million in a now-closed underwritten public offering of about 2.4 million common shares priced at $97 each. Underwriters of the offering exercised in full their option to purchase up to 315,000 additional shares. Cowen, Credit Suisse and Barclays acted as joint book-running managers.