$Berkshire Hathaway-A (BRK.A.US)$ $Berkshire Hathaway-B (BRK.B.US)$ Berkshire's 13F for Q1 2023 is due to be released at 4 pm Monday.  It sold about $6 billion of $Chevron (CVX.US)$ and perhaps part of its $4 billion stake in $Activision Blizzard (ATVI.US)$ and perhaps $Ishares Trust Short Term National Muni Bond Etf (SUB.US)$ , $Bank of New York Mellon (BK.US)$ and $Ally Financial (ALLY.US)$ . It sold $13 B and bought $3 B in equities in Q1. What did Berkshire buy?