GNS Healthcare Inc., of Cambridge, Mass., said it raised $23 million in a series D fundraising led by Cigna Ventures, a wholly owned indirect subsidiary of Cigna Corp., with participation from Amgen Ventures, Celgene Corp., Echo Health Ventures, Alexandria Venture Investments and former Caesar's CEO and Aetna Division President Gary Loveman. 

Oncosenx Inc., of Seattle, said it raised $3 million in pre-seed funding to advance its pipeline. The company is developing a selective tumor-killing platform with two main components: a proprietary lipid nanoparticle for cellular delivery and a selective DNA payload. 

DUBLIN – European biotechnology firms engaged in drug discovery and development raised an aggregate $3.172 billion in equity investment during the first half of 2019, down 19% on the same period last year. Unless there is a substantial pickup in the third and fourth quarters, the sector's record-breaking 2018 total of $7.715 billion looks to be out of reach. 

Algernon Pharmaceuticals Inc., of Vancouver, British Columbia, said it expects to raise between CA$2.5 million (US$1.9 million) and CA$5 million in a best efforts public offering of an undisclosed number of units intended to support up to three phase II trials.

Karuna Therapeutics Inc., of Boston, said it closed its IPO of about 6.4 million shares, which includes the full exercise of the underwriters' overallotment of 836,718 shares, priced at $16 per share. Gross proceeds were about $102.6 million.

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. 

LONDON – Two new $250 million investment funds have been announced, promising long-term capital to new companies formed around the U.K.'s science base. Ahren Innovation Capital LP, which is supported by eight of Cambridge University's most prominent scientists – including two Nobel laureates – has closed at $250 million. Meanwhile, SV Health Investors announced the launch of its $250 million seventh fund, with the charity Cancer Research UK (CRUK) putting in $25 million as cornerstone investor.

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.

Century Therapeutics Inc. came out of stealth mode Monday with $250 million in funding commitments from lead investor Bayer AG, founding investor Versant Ventures and strategic partner Fujifilm Holdings Corp. to develop next-generation allogeneic cell therapies for cancer, based on induced pluripotent stem cells (iPSCs).

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.