** Cancer therapies developer Sesen Bio Inc's SESN.O
shares down ~34% at $0.44
** Company to merge with immunotherapies developer Carisma
Therapeutics in all-stock deal
** SESN stockholders are expected to own about 41.7% of the
combined company, with Carisma shareholders owning the rest
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** New company will operate under the name Carisma
Therapeutics Inc and trade on Nasdaq under the ticker symbol
"CARM"; Carisma's CEO Steven Kelly to lead the new company
** SESN says combined company will have ~$180 mln of cash
and cash equivalents after the deal, and will aim to primarily
develop Carisma's cancer therapies
** SESN in July paused development of its bladder cancer
drug, a year after U.S. regulators declined to approve the drug
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(Reporting by Pratik Jain)
((Pratik.Jain@thomsonreuters.com))