Thomas Gayner - Markel Group Inc.
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  Costco Co. (COST)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2026   Q1 39,150 0.33 $996.43 $39,010,235 SEC
2025   Q4 39,150 0.27 $862.34 $33,760,611 SEC
2025   Q3 39,150 0.29 $925.63 $36,238,414 SEC
2025   Q2 39,150 0.33 $989.94 $38,756,151 SEC
2025   Q1 39,150 0.33 $945.78 $37,027,287 SEC
2024   Q4 39,150 0.32 $916.27 $35,871,971 SEC
2024   Q3 39,150 0.31 $886.52 $34,707,258 SEC
2024   Q2 39,150 0.33 $849.99 $33,277,109 SEC
2024   Q1 39,150 0.28 $732.63 $28,682,464 SEC
2023   Q4 39,150 0.28 $660.08 $25,842,132 SEC
2023   Q3 39,150 0.27 $564.96 $22,118,184 SEC
2023   Q2 39,150 0.25 $538.38 $21,077,577 SEC
2023   Q1 39,150 0.25 $496.87 $19,452,461 SEC
2022   Q4 39,150 0.24 $456.50 $17,871,975 SEC
2022   Q3 39,150 0.27 $472.26 $18,489,000 SEC
2022   Q2 39,150 0.27 $479.28 $18,764,000 SEC
2022   Q1 39,150 0.27 $575.86 $22,545,000 SEC
2021   Q4 39,150 0.26 $567.69 $22,225,000 SEC
2021   Q3 39,150 0.22 $449.37 $17,593,000 SEC
2021   Q2 39,150 0.20 $395.68 $15,491,000 SEC
2021   Q1 39,150 0.19 $352.46 $13,799,000 SEC
2020   Q4 39,150 0.22 $376.78 $14,751,000 SEC
2020   Q3 39,150 0.24 $354.99 $13,898,000 SEC
2020   Q2 39,150 0.22 $303.22 $11,871,000 SEC
2020   Q1 39,150 0.21 $285.13 $11,163,000 SEC
2019   Q4 39,150 0.16 $293.92 $11,507,000 SEC
2019   Q3 39,150 0.17 $288.10 $11,279,000 SEC
2019   Q2 39,150 0.16 Add 0.38% <0.01 $264.24 $10,345,000 SEC
2019   Q1 39,000 0.16 $242.15 $9,444,000 SEC
2018   Q4 39,000 0.15 $203.69 $7,944,000 SEC
2018   Q3 39,000 0.16 $234.87 $9,160,000 SEC
2018   Q2 39,000 0.15 $208.97 $8,150,000 SEC
2018   Q1 39,000 0.14 $188.44 $7,349,000 SEC
2017   Q4 39,000 0.14 $186.13 $7,259,000 SEC
2017   Q3 39,000 0.13 $164.28 $6,407,000 SEC
2017   Q2 39,000 0.14 $159.95 $6,238,000 SEC
2017   Q1 39,000 0.15 $167.67 $6,539,000 SEC
2016   Q4 39,000 0.15 $160.13 $6,245,000 SEC
2016   Q3 39,000 0.16 $152.51 $5,948,000 SEC
2016   Q2 39,000 0.16 $157.03 $6,124,000 SEC
2016   Q1 39,000 0.17 $157.59 $6,146,000 SEC
2015   Q4 39,000 0.17 $161.49 $6,298,000 SEC
2015   Q3 39,000 0.15 $144.56 $5,638,000 SEC
2015   Q2 39,000 0.13 $135.05 $5,267,000 SEC
2015   Q1 39,000 0.15 $151.49 $5,908,000 SEC
2014   Q4 39,000 0.14 $141.74 $5,528,000 SEC
2014   Q3 39,000 0.14 $125.33 $4,888,000 SEC
2014   Q2 39,000 0.13 $115.15 $4,491,000 SEC
2014   Q1 39,000 0.14 Reduce 0.76% <0.01 $111.67 $4,355,000 SEC
2013   Q4 39,300 0.15 Reduce 1.01% <0.01 $119.01 $4,677,000 SEC
2013   Q3 39,700 0.16 Reduce 1.49% <0.01 $115.16 $4,572,000 SEC
2013   Q2 40,300 0.17 Reduce 0.49% <0.01 $110.57 $4,456,000 SEC
2013   Q1 40,500 0.17 $106.12 $4,298,000 SEC
2012   Q4 40,500 0.18 $98.74 $3,999,000 SEC
2012   Q3 40,500 0.19 $100.17 $4,057,000 SEC
2012   Q2 40,500 0.19 $94.99 $3,847,000 SEC
2012   Q1 40,500 0.18 $90.79 $3,677,000 SEC
2011   Q4 40,500 0.19 $83.33 $3,375,000 SEC
2011   Q3 40,500 0.22 $82.15 $3,327,000 SEC
2011   Q2 40,500 0.19 $81.23 $3,290,000 SEC
2011   Q1 40,500 0.17 $73.33 $2,970,000 SEC
2010   Q4 40,500 0.17 $72.20 $2,924,000 SEC
2010   Q3 40,500 0.17 Reduce 0.86% <0.01 $64.47 $2,611,000 SEC
2010   Q2 40,850 0.16 Add 17.22% 0.02 $54.83 $2,240,000 SEC
2010   Q1 34,850 0.14 Add 77.35% 0.06 $59.71 $2,081,000 SEC
2009   Q4 19,650 0.08 Add 34.13% 0.02 $59.19 $1,163,000 SEC
2009   Q3 14,650 0.06 Add 25.75% 0.01 $56.38 $826,000 SEC
2009   Q2 11,650 0.05 $45.75 $533,000 SEC
2009   Q1 11,650 0.06 Add 2.64% <0.01 $46.35 $540,000 SEC
2008   Q4 11,350 0.05 $52.42 $595,000 SEC
2008   Q3 11,350 0.05 Add 78.74% 0.02 $64.93 $737,000 SEC
2008   Q2 6,350 0.03 Buy 0.03 $70.24 $446,000 SEC