The Fed has been actively engaged in its new $300 billion Treasury purchase program. To date, the Federal Reserve Bank of New York has bought $17.54 billion in longer-dated bonds. In the most recent settled transaction on 3/30/2009, the Fed bought on the long end of the yield curve: $2.499 billion in Treasuries that mature during the years 2026-2039. Today, the Fed NY is purchasing bonds with shorter maturity lengths, spanning the years 2012-2013.
In a related event, the Fed has purchased another $32.94 billion in MBS that has not settled on balance yet.