Thomas Gayner - Markel Group
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    129
Portfolio value:    $11,938,885,174
Holdings Activity Buys Sells    History
Holding/activity history for  White Mountains Insurance Group, Ltd. (WTM)
← All WTM superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2011   Q3 0 0.00 Sell 100.00% 1.79 $377.00–438.25 · VW $407.00i SEC
2011   Q2 75,530 1.79 Reduce 7.36% 0.13 $343.63–428.24 · VW $397.34i $31,735,000 SEC
2011   Q1 81,530 1.73 $364.20 $29,693,000 SEC
2010   Q4 81,530 1.62 $335.59 $27,361,000 SEC
2010   Q3 81,530 1.64 $308.46 $25,149,000 SEC
2010   Q2 81,530 1.91 Reduce 10.90% 0.24 $306.01–363.37 · VW $331.19i $26,432,000 SEC
2010   Q1 91,500 2.18 Reduce 2.14% 0.05 $314.17–359.18 · VW $342.78i $32,482,000 SEC
2009   Q4 93,500 2.27 $332.66 $31,104,000 SEC
2009   Q3 93,500 2.25 $307.02 $28,706,000 SEC
2009   Q2 93,500 2.12 $228.91 $21,403,000 SEC
2009   Q1 93,500 1.74 $171.91 $16,074,000 SEC
2008   Q4 93,500 2.31 Reduce 6.78% 0.22 $195.00–474.44 · VW $312.18i $24,974,000 SEC
2008   Q3 100,300 3.17 Reduce 15.22% 0.53 $389.27–525.00 · VW $461.34i $47,116,000 SEC
2008   Q2 118,300 3.49 Reduce 9.21% 0.33 $404.99–493.75 · VW $442.58i $50,750,000 SEC
2008   Q1 130,300 3.60 Reduce 6.46% 0.25 $449.36–512.96 · VW $480.77i $62,544,000 SEC
2007   Q4 139,300 3.85 $514.05 $71,607,000 SEC
Price snapshot:
Current price$2,174.96
52-week low$1,647.25
52-week high$2,333.00