Mario Gabelli's AMT Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 24,568 shares of American Tower Corporation (AMT) worth $4.31 M, representing 0.04% of the portfolio. First purchased in 2016-Q4, this long-term strategic position has been held for 37 quarters.
Based on 13F filings, Mario Gabelli has maintained a strategic position in AMT, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2023, adding 31,360 shares. Largest reduction occurred in Q1 2023, reducing 14,596 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's American Tower Corporation (AMT) Holding Value Over Time
Track share changes against reported price movement
Quarterly American Tower Corporation (AMT) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -723 | Reduce 2.86% | 24,568 | $175.57 |
| Q3 2025 | -2,290 | Reduce 8.30% | 25,291 | $192.32 |
| Q2 2025 | +252 | Add 0.92% | 27,581 | $221.02 |
| Q1 2025 | -3,088 | Reduce 10.15% | 27,329 | $217.60 |
| Q4 2024 | -1,271 | Reduce 4.01% | 30,417 | $183.41 |
| Q3 2024 | -436 | Reduce 1.36% | 31,688 | $232.56 |
| Q2 2024 | -199 | Reduce 0.62% | 32,124 | $194.38 |
| Q1 2024 | -626 | Reduce 1.90% | 32,323 | $197.59 |
| Q4 2023 | -322 | Reduce 0.97% | 32,949 | $215.88 |
| Q3 2023 | +31,360 | Add 1641.03% | 33,271 | $164.45 |
| Q2 2023 | -15 | Reduce 0.78% | 1,911 | $193.94 |
| Q1 2023 | -14,596 | Reduce 88.34% | 1,926 | $204.34 |
| Q4 2022 | -5,840 | Reduce 26.12% | 16,522 | $211.86 |
| Q3 2022 | +20,805 | Add 1336.22% | 22,362 | $214.69 |
| Q2 2022 | -691 | Reduce 30.74% | 1,557 | $255.62 |
| Q1 2022 | +742 | Add 49.27% | 2,248 | $251.33 |
| Q4 2021 | +1,506 | New Buy | 1,506 | $292.83 |
| Q3 2021 | -5,295 | Sold Out | 0 | $0.00 |
| Q2 2021 | +1,795 | Add 51.29% | 5,295 | $270.07 |
| Q1 2021 | +300 | Add 9.38% | 3,500 | $239.14 |
| Q4 2020 | -11,440 | Reduce 78.14% | 3,200 | $224.38 |
| Q3 2020 | +1,110 | Add 8.20% | 14,640 | $241.73 |
| Q2 2020 | +3,635 | Add 36.74% | 13,530 | $258.54 |
| Q1 2020 | -3,951 | Reduce 28.54% | 9,895 | $217.79 |
| Q4 2019 | -5,108 | Reduce 26.95% | 13,846 | $229.81 |
| Q3 2019 | +204 | Add 1.09% | 18,954 | $221.11 |
| Q2 2019 | +894 | Add 5.01% | 18,750 | $204.43 |
| Q1 2019 | -542 | Reduce 2.95% | 17,856 | $197.08 |
| Q4 2018 | +11,026 | Add 149.57% | 18,398 | $158.17 |
| Q3 2018 | -320 | Reduce 4.16% | 7,372 | $145.28 |
| Q2 2018 | -230 | Reduce 2.90% | 7,692 | $144.18 |
| Q1 2018 | -10,340 | Reduce 56.62% | 7,922 | $145.29 |
| Q4 2017 | -441 | Reduce 2.36% | 18,262 | $142.65 |
| Q3 2017 | -745 | Reduce 3.83% | 18,703 | $136.66 |
| Q2 2017 | +5,019 | Add 34.78% | 19,448 | $132.30 |
| Q1 2017 | +8,864 | Add 159.28% | 14,429 | $121.56 |
| Q4 2016 | +5,565 | New Buy | 5,565 | $105.66 |
Mario Gabelli's American Tower Corporation Investment FAQs
Mario Gabelli first purchased American Tower Corporation (AMT) in Q4 2016, acquiring 5,565 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held American Tower Corporation (AMT) for 37 quarters since Q4 2016.
Mario Gabelli's largest addition to American Tower Corporation (AMT) was in Q3 2023, adding 33,271 shares worth $5.47 M.
According to the latest 13F filing for Q4 2025, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 24,568 shares of American Tower Corporation (AMT), valued at approximately $4.31 M.
As of the Q4 2025 filing, American Tower Corporation (AMT) represents approximately 0.04% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in American Tower Corporation (AMT) was 33,271 shares, as reported at the end of Q3 2023.