Yes, U.S. Bancorp (i.e., U.S. Bank) has been flying under the radar for the last 10.5 years. However, if you read message board post #'s 581133, 581134, 581135, 581136, 581137, and 581139 (i.e., some oldies but goodies), you'll see they have a large role in WAMU trusts...
Just look at the one article.. After 2008, U.S. Bancorp acquired over $1 TRILLION in trust assets...