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  American Tower Corp. (AMT)
Period Shares % of Portfolio Activity % Change to Portfolio Reported Price Value Filing
2024   Q4 0 0.00 Sell 100.00% 0.11 SEC
2024   Q3 51,910 0.11 $232.56 $12,072,190 SEC
2024   Q2 51,910 0.10 $194.38 $10,090,265 SEC
2024   Q1 51,910 0.10 $197.59 $10,256,897 SEC
2023   Q4 51,910 0.12 $215.88 $11,206,330 SEC
2023   Q3 51,910 0.10 $164.45 $8,536,600 SEC
2023   Q2 51,910 0.12 $193.94 $10,067,425 SEC
2023   Q1 51,910 0.14 $204.34 $10,607,289 SEC
2022   Q4 51,910 0.15 $211.86 $10,997,653 SEC
2022   Q3 51,910 0.17 $214.70 $11,145,000 SEC
2022   Q2 51,910 0.19 $255.62 $13,269,000 SEC
2022   Q1 51,910 0.16 $251.22 $13,041,000 SEC
2021   Q4 51,910 0.18 $292.51 $15,184,000 SEC
2021   Q3 51,910 0.18 $265.40 $13,777,000 SEC
2021   Q2 51,910 0.18 Add 0.35% <0.01 $270.14 $14,023,000 SEC
2021   Q1 51,730 0.17 Add 1.13% <0.01 $239.07 $12,367,000 SEC
2020   Q4 51,150 0.17 $224.46 $11,481,000 SEC
2020   Q3 51,150 0.21 $241.74 $12,365,000 SEC
2020   Q2 51,150 0.25 $258.55 $13,225,000 SEC
2020   Q1 51,150 0.21 Add 6.12% 0.01 $217.75 $11,138,000 SEC
2019   Q4 48,200 0.16 Add 6.87% 0.01 $229.83 $11,078,000 SEC
2019   Q3 45,100 0.15 Add 27.04% 0.03 $221.13 $9,973,000 SEC
2019   Q2 35,500 0.11 $204.45 $7,258,000 SEC
2019   Q1 35,500 0.12 $197.07 $6,996,000 SEC
2018   Q4 35,500 0.11 $158.20 $5,616,000 SEC
2018   Q3 35,500 0.09 $145.30 $5,158,000 SEC
2018   Q2 35,500 0.10 $144.17 $5,118,000 SEC
2018   Q1 35,500 0.10 $145.35 $5,160,000 SEC
2017   Q4 35,500 0.10 $142.68 $5,065,000 SEC
2017   Q3 35,500 0.10 $136.68 $4,852,000 SEC
2017   Q2 35,500 0.10 Add 20.34% 0.02 $132.31 $4,697,000 SEC
2017   Q1 29,500 0.08 Add 110.71% 0.04 $121.53 $3,585,000 SEC
2016   Q4 14,000 0.04 Add 600.00% 0.03 $105.71 $1,480,000 SEC
2016   Q3 2,000 0.01 Buy 0.01 $113.50 $227,000 SEC
2016   Q2 0 0.00 Sell 100.00% 0.06 SEC
2016   Q1 20,000 0.06 $102.35 $2,047,000 SEC
2015   Q4 20,000 0.05 $96.95 $1,939,000 SEC
2015   Q3 20,000 0.05 Add 150.00% 0.03 $88.00 $1,760,000 SEC
2015   Q2 8,000 0.02 Buy 0.02 $93.25 $746,000 SEC