Mason Hawkins - Southeastern Asset Management Inc
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    49
Portfolio value:    $2,032,773,449
Holdings Activity Buys Sells    History
Holding/activity history for  Berkshire Hathaway CL B (BRK.B)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2020   Q2 0 0.00 Sell 100.00% 0.17 SEC
2020   Q1 38,700 0.17 Buy 0.17 $182.84 $7,076,000 SEC
2015   Q1 0 0.00 Sell 100.00% 0.01 SEC
2014   Q4 16,800 0.01 Reduce 99.60% 3.16 $150.18 $2,523,000 SEC
2014   Q3 4,201,482 3.17 Reduce 2.34% 0.07 $138.14 $580,393,000 SEC
2014   Q2 4,302,129 2.89 Reduce 0.72% 0.02 $126.56 $544,478,000 SEC
2014   Q1 4,333,496 2.94 Add 2.20% 0.06 $124.97 $541,557,000 SEC
2013   Q4 4,240,058 2.46 Reduce 2.08% 0.05 $118.56 $502,701,000 SEC
2013   Q3 4,329,958 2.49 Reduce 7.91% 0.21 $113.51 $491,494,000 SEC
2013   Q2 4,702,096 2.63 Reduce 1.72% 0.04 $111.92 $526,259,000 SEC
2013   Q1 4,784,213 2.28 Reduce 2.39% 0.05 $104.20 $498,515,000 SEC
2012   Q4 4,901,280 2.03 Reduce 1.75% 0.04 $89.70 $439,645,000 SEC
2012   Q3 4,988,380 2.07 Add 0.24% <0.01 $88.20 $439,975,000 SEC
2012   Q2 4,976,260 2.06 Add 2,328.63% 1.98 $83.33 $414,672,000 SEC
2012   Q1 204,900 0.08 Add 59.83% 0.03 $81.15 $16,628,000 SEC
2011   Q4 128,200 0.05 $76.30 $9,782,000 SEC
2011   Q3 128,200 0.05 Buy 0.05 $71.04 $9,107,000 SEC