As expected, some big transactions helped boost deal values in February.

Last month saw 472 U.S. announced mergers valued at roughly $127.9 billion, according to data from Thomson Reuters. This compares to 645 transactions for the same time period in 2012, totaling $56.1 billion. While the number of deals dropped nearly 27%, transaction value more than doubled.

Warren Buffett’s Berkshire Hathaway and 3G Capital $23.2 billion takeover of H.J. Heinz ranked as February’s biggest deal.

Large transactions also helped boost valuations in the private equity world. There were 75 U.S. announced transactions, valued at about $52.6 billion. This compares to 108 deals in February of 2012, which totaled a mere $14.4 billion.

Here are the top 5 PE-backed deals in February, according to Thomson Reuters. (TR is the publisher of peHUB.)

Photo courtesy of H.J. Heinz

5. Nationwide Acceptance

Prospect Capital Corp. on Feb. 7 said it had funded a recap of Nationwide Acceptance Corp. The deal was valued at $25.2 million. Chicago-based Nationwide is a specialty finance business.