The Company
Unum Group (UNM) is a US-based insurance company providing various employee benefits such as coverage for disability, life, accident, supplemental health, dental, and vision. The vast majority of operating income is derived in the United States, with the second largest source coming from the United Kingdom. Unum has recently begun operations in Poland as well via the acquisition of Pramerica Zycie TUiR S.A., a subsidiary of Prudential Financial Inc.
Source: Unum 2019 Outlook
"Closed block" refers to insurance policies that are no longer sold but still held on the company's books.