Gary Blumsohn is an actuary with over 30 years of experience in property and casualty insurance and reinsurance. He served as the Chief Actuary of Arch Reinsurance Company from 2002 to 2017 and currently holds an actuarial and underwriting oversight role. He also ran the Claims and IT Departments for 5 years.

He has been involved in underwriting reinsurance treaties both at Arch Re, and in his previous job at St. Paul Re, where he underwrote and priced contracts in the Non-Traditional Underwriting unit, including loss portfolio transfers and aggregate stop losses. He has priced hundreds of reinsurance treaties with most emphasis on D&O, E&O, umbrella, general liability, auto liability, trucking, workers' compensation, and property. As chief actuary, he oversaw the loss reserving on the business, as well as interacting with insurance regulators, auditors, and external actuaries. He regularly participates in underwriting and claim audits, mostly on long-tail casualty business.

He has been involved in dozens of reinsurance commutations, both as a cedent and as a reinsurer, and published an award-winning paper on workers’ compensation reinsurance commutations. He has regularly been involved in reviewing large and significant claims, especially those where modeling and projections have been needed in anticipation of settlement.

He is a Fellow of the Casualty Actuarial Society, a Certified Enterprise Risk Analyst, and has a PhD in economics from NYU, where his dissertation was about on how passing time and changing knowledge affect damages in tort and securities law.