American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionFirst Horizon Advisors, Inc.
Latest Disclosed Ownership72,290 shares
Latest Disclosed Value $ 15,977,536
First Horizon Advisors, Inc. reports 0.47% increase in ownership of AMT / American Tower Corporation

On August 6, 2025 - First Horizon Advisors, Inc. filed a 13F-HR form disclosing ownership of 72,290 shares of American Tower Corporation (US:AMT) valued at $15,977,536 USD as of June 30, 2025. The entity filed a previous 13F-HR on April 28, 2025 disclosing 71,953 shares of American Tower Corporation. This represents a change in shares of 0.47% during the quarter. The current value of the position is $14,017,754 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-08-06 2025-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 72,290 337 0.47 15,978 2.05 0.4152
2025-04-28 2025-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 71,953 13,248 22.57 15,657 45.41 0.4410
2025-02-03 2024-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 58,705 -1,468 -2.44 10,767 -23.05 0.3016
2024-11-08 2024-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 60,173 3,930 6.99 13,994 28.00 0.3888
2024-07-19 2024-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 56,243 -378 -0.67 10,933 -2.28 0.3323
2024-04-26 2024-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 56,621 2,946 5.49 11,188 -3.45 0.3458
2024-02-06 2023-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 53,675 -2,700 -4.79 11,587 24.99 0.3832
2023-10-27 2023-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 56,375 1,868 3.43 9,271 -12.31 0.3356
2023-08-03 2023-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 54,507 511 0.95 10,571 -4.19 0.3662
2023-05-15 2023-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 53,996 2,952 5.78 11,034 2.03 0.3939
2023-02-10 2022-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 51,044 1,217 2.44 10,814 1.08 0.3987
2022-11-09 2022-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 49,827 -252 -0.50 10,698 -16.42 0.4288
2022-08-02 2022-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 50,079 47,305 1,705.30 12,800 1,736.44 0.4552
2022-05-10 2022-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 2,774 -48,375 -94.58 697 -95.34 0.0295
2022-05-10 2022-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 48,972 12,303
2022-02-09 2021-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 51,149 2,107 4.30 14,961 14.94 0.4518
2021-11-15 2021-09-30 13F/A-1 AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 49,042 30,657 166.75 13,016 162.10 0.4251
2021-11-09 2021-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 49,042 30,657 13,016 0.1900
2021-08-09 2021-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 18,385 11,295 159.31 4,966 192.98 0.2677
2021-05-11 2021-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 7,090 4,997 238.75 1,695 260.64 0.0979
2021-02-11 2020-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 2,093 497 31.14 470 21.76 0.0315
2020-11-12 2020-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,596 51 3.30 386 -3.26 0.0289
2020-07-31 2020-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,545 -68 -4.22 399 13.68 0.0314
2020-05-05 2020-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,613 -64 -3.82 351 -8.83 0.0328
2020-01-07 2019-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,677 31 1.88 385 5.77 0.0284
2019-10-23 2019-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,646 -253 -13.32 364 -6.19 0.0284
2019-08-05 2019-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,899 239 14.40 388 18.65 0.0300
2019-04-26 2019-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,660 65 4.08 327 29.76 0.0262
2019-02-11 2018-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,595 -54 -3.27 252 5.00 0.0225
2018-11-08 2018-09-30 13F/A-2 AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,649 24 1.48 240 2.56 0.0187
2018-11-05 2018-09-30 13F/A-1 AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,649 0 240 0.0134
2018-08-06 2018-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 1,625 1,542 1,857.83 234 1,850.00 0.0196
2018-05-02 2018-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 83 0 0.00 12 0.00 0.0012
2018-01-25 2017-12-31 13F AMERICAN0TOWER0CORP0REIT COMMON0STOCK 03027X100 83 0 0.00 12 9.09 0.0011
2017-11-09 2017-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 83 0 0.00 11 0.00 0.0011
2017-08-14 2017-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 83 8 10.67 11 22.22 0.0012
2017-05-02 2017-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 9 0.00 0.0010
2017-02-13 2016-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 9 0.00 0.0011
2016-10-28 2016-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 9 0.00 0.0011
2016-07-29 2016-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 9 12.50 0.0012
2016-05-09 2016-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 8 14.29 0.0009
2016-02-08 2015-12-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 7 0.00 0.0012
2015-11-06 2015-09-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 7 0.00 0.0011
2015-08-03 2015-06-30 13F/A-1 AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 7 0.00 0.0010
2015-07-31 2015-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 7
2015-05-04 2015-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 75 0.00 7 0.0010
2015-02-05 2014-12-31 13F AMERICAN TOWER CORPORATION COM USD0.01 COMMON STOCK 03027X100 0 -400 -100.00 0 -100.00
2014-11-13 2014-09-30 13F/A-1 AMERICAN TOWER CORPORATION COM USD0.01 COMMON STOCK 03027X100 400 325 433.33 37 428.57 0.0058
2014-11-13 2014-09-30 13F AMERICAN TOWER CORPORATION COM USD0.01 COMMON STOCK 03027X100 400 325 37 0.0038
2014-08-07 2014-06-30 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 0 0.00 7 16.67 0.0010
2014-05-02 2014-03-31 13F AMERICAN TOWER CORP REIT COMMON STOCK 03027X100 75 75 -20.21 6 -14.29 0.0008
2014-02-25 2012-09-30 13F AMERICAN TOWER REIT 03027X100 0 -94 -100.00 0 -100.00
2014-02-25 2012-06-30 13F AMERICAN TOWER REIT 03027X100 94 13 16.05 7 40.00 0.0055
2014-02-25 2012-03-31 13F AMERICAN TOWER REIT 03027X100 81 81 5 0.0041
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.