Thomas Gayner - Markel Asset Management
Holding/activity history for American Tower Corp. (AMT)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2023 Q4 | 51,910 | 0.12 | $215.87 | ||
| 2023 Q3 | 51,910 | 0.10 | $164.44 | ||
| 2023 Q2 | 51,910 | 0.12 | $193.93 | ||
| 2023 Q1 | 51,910 | 0.13 | $204.33 | ||
| 2022 Q4 | 51,910 | 0.15 | $211.87 | ||
| 2022 Q3 | 51,910 | 0.16 | $214.70 | ||
| 2022 Q2 | 51,910 | 0.19 | $255.62 | ||
| 2022 Q1 | 51,910 | 0.15 | $251.22 | ||
| 2021 Q4 | 51,910 | 0.17 | $292.51 | ||
| 2021 Q3 | 51,910 | 0.17 | $265.40 | ||
| 2021 Q2 | 51,910 | 0.18 | Add 0.35% | 0.00 | $270.14 |
| 2021 Q1 | 51,730 | 0.17 | Add 1.13% | 0.00 | $239.07 |
| 2020 Q4 | 51,150 | 0.17 | $224.46 | ||
| 2020 Q3 | 51,150 | 0.21 | $241.74 | ||
| 2020 Q2 | 51,150 | 0.25 | $258.55 | ||
| 2020 Q1 | 51,150 | 0.21 | Add 6.12% | 0.01 | $217.75 |
| 2019 Q4 | 48,200 | 0.15 | Add 6.87% | 0.01 | $229.83 |
| 2019 Q3 | 45,100 | 0.15 | Add 27.04% | 0.03 | $221.13 |
| 2019 Q2 | 35,500 | 0.11 | $204.45 | ||
| 2019 Q1 | 35,500 | 0.12 | $197.07 | ||
| 2018 Q4 | 35,500 | 0.11 | $158.20 | ||
| 2018 Q3 | 35,500 | 0.09 | $145.30 | ||
| 2018 Q2 | 35,500 | 0.09 | $144.17 | ||
| 2018 Q1 | 35,500 | 0.10 | $145.35 | ||
| 2017 Q4 | 35,500 | 0.10 | $142.68 | ||
| 2017 Q3 | 35,500 | 0.10 | $136.68 | ||
| 2017 Q2 | 35,500 | 0.10 | Add 20.34% | 0.02 | $132.31 |
| 2017 Q1 | 29,500 | 0.08 | Add 110.71% | 0.04 | $121.53 |
| 2016 Q4 | 14,000 | 0.04 | Add 600.00% | 0.03 | $105.71 |
| 2016 Q3 | 2,000 | 0.01 | Buy | 0.01 | $113.50 |
| 2016 Q2 | 0 | 0 | Sell 100.00% | 0.05 | |
| 2016 Q1 | 20,000 | 0.05 | $102.35 | ||
| 2015 Q4 | 20,000 | 0.05 | $96.95 | ||
| 2015 Q3 | 20,000 | 0.05 | Add 150.00% | 0.03 | $88.00 |
| 2015 Q2 | 8,000 | 0.02 | Buy | 0.02 | $93.25 |