Warren Buffett - Berkshire Hathaway Inc
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    29
Portfolio value:    $263,095,703,570
Holdings Activity Buys Sells    History
Holding/activity history for  Merck & Co. (MRK)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2021   Q3 0 0.00 Sell 100.00% 0.24 SEC
2021   Q2 9,157,192 0.24 Reduce 48.79% 0.25 $77.77 $712,155,000 SEC
2021   Q1 17,882,388 0.51 Reduce 37.69% 0.33 $77.09 $1,378,553,000 SEC
2020   Q4 28,697,435 0.87 Add 28.10% 0.19 $81.80 $2,347,450,000 SEC
2020   Q3 22,403,102 0.81 Buy 0.81 $82.95 $1,858,337,000 SEC