During the 19 months from December 2007 through June 2009, the total number of mass layoff events (seasonally adjusted) was 39,822, and the number of initial claims filed (seasonally adjusted) in those events was 4,090,538. (December 2007 was designated as the start of a recession by the National Bureau of Economic Research).
In June, employers took 2,763 mass layoff actions that resulted in the separation of 279,231 workers, seasonally adjusted, as measured by new filings for unemployment insurance benefits during the month. Each action involved at least 50 persons from a single employer.
The number of mass layoffs decreased by 170 and associated initial claims decreased by 33,649. Both measures had been at record high levels in May. Over the year, the number of mass layoff events increased by 1,046, and associated initial claims increased by 104,483.
In June, 1,235 mass layoffs events were reported in the manufacturing sector, seasonally adjusted, resulting in 159,310 initial claims. Over the year, the number of manufacturing events increased by 680, and associated claims increased by 79,566.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Mass Layoffs in June 2009 at https://www.bls.gov/opub/ted/2009/jul/wk3/art05.htm (visited October 04, 2023).