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GRANDFIELD & DODD, LLC
> AMT
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | AMERICAN TOWER CORP /MA/ | AMT | 1,977 | 2 | 383,419,000 | -20,153,000 | $193,939.81 |
| 03/31/2023 | AMERICAN TOWER CORP /MA/ | AMT | 1,975 | -49 | 403,572,000 | 403,142,000 | $204,340.25 |
| 09/30/2022 | AMERICAN TOWER CORP /MA/ | AMT | 2,024 | 0 | 430,000 | -90,000 | $212.45 |
| 06/30/2022 | AMERICAN TOWER CORP /MA/ | AMT | 2,024 | 176 | 520,000 | -20,000 | $256.92 |
| 12/31/2021 | AMERICAN TOWER CORP /MA/ | AMT | 1,848 | 49 | 540,000 | 60,000 | $292.21 |
| 09/30/2021 | AMERICAN TOWER CORP /MA/ | AMT | 1,799 | 241 | 480,000 | 60,000 | $266.81 |
| 06/30/2021 | AMERICAN TOWER CORP /MA/ | AMT | 1,558 | 1 | 420,000 | 70,000 | $269.58 |
| 12/31/2020 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 350,000 | -30,000 | $224.79 |
| 09/30/2020 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | -4 | 380,000 | -20,000 | $244.06 |
| 06/30/2020 | AMERICAN TOWER CORP /MA/ | AMT | 1,561 | -21 | 400,000 | 56,000 | $256.25 |
| 03/31/2020 | AMERICAN TOWER CORP /MA/ | AMT | 1,582 | 25 | 344,000 | -14,000 | $217.45 |
| 12/31/2019 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 358,000 | 14,000 | $229.93 |
| 09/30/2019 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 344,000 | 26,000 | $220.94 |
| 06/30/2019 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 318,000 | 11,000 | $204.24 |
| 03/31/2019 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 307,000 | 61,000 | $197.17 |
| 12/31/2018 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 246,000 | 20,000 | $158.00 |
| 09/30/2018 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | 0 | 226,000 | 2,000 | $145.15 |
| 06/30/2018 | AMERICAN TOWER CORP /MA/ | AMT | 1,557 | -121 | 224,000 | -20,000 | $143.87 |
| 03/31/2018 | AMERICAN TOWER CORP /MA/ | AMT | 1,678 | 0 | 244,000 | 5,000 | $145.41 |
| 12/31/2017 | AMERICAN TOWER CORP /MA/ | AMT | 1,678 | 1,678 | 239,000 | 239,000 | $142.43 |
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