The transaction affects a total of about 3,700 retirees and beneficiaries in the Roadway LLC Pension Plan, the Yellow Corp. Pension Plan and the Yellow Retirement Pension Plan, the 8-K filing said.
The three plans had a total of about 8,500 participants before the transaction.
As of Dec. 31, the company had a total of $1.191 billion in pension plan assets and $1.142 billion in projected benefit obligations, for a funding ratio of 104.3%, according to the company's most recent 10-K filing.
Individually, the Yellow Corp. Pension Plan, Roadway LLC Pension Plan and Yellow Retirement Pension Plan had $492 million, $468 million and $230 million in assets, respectively, as of that date, according to the plans' most recent Form 5500 filings.
Mike Kelley, spokesman for Yellow Corp., could not immediately provide further information.