American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionArgent Trust Co
Latest Disclosed Ownership8,266 shares
Latest Disclosed Value $ 1,426,546
Argent Trust Co reports 7.95% increase in ownership of AMT / American Tower Corporation

On May 13, 2026 - Argent Trust Co filed a 13F-HR form disclosing ownership of 8,266 shares of American Tower Corporation (US:AMT) valued at $1,426,546 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 7,657 shares of American Tower Corporation. This represents a change in shares of 7.95% during the quarter. The current value of the position is $1,506,396 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)
2026-05-13 2026-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 8,266 609 7.95 1,427 6.10 0.0189
2026-02-10 2025-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 7,657 -1,392 -15.38 1,344 -22.76 0.0461
2025-11-12 2025-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 9,049 -1,063 -10.51 1,740 -22.11 0.0617
2025-08-12 2025-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 10,112 -101 -0.99 2,235 0.54 0.0843
2025-05-09 2025-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 10,213 -9,560 -48.35 2,222 -38.72 0.0912
2025-02-13 2024-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 19,773 -547 -2.69 3,627 -23.26 0.1478
2024-11-13 2024-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 20,320 -172 -0.84 4,726 18.63 0.1956
2024-08-12 2024-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 20,492 924 4.72 3,983 3.03 0.1754
2024-05-10 2024-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 19,568 285 1.48 3,866 -7.11 0.1739
2024-02-09 2023-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 19,283 2,044 11.86 4,163 46.86 0.2071
2023-11-08 2023-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 17,239 1,022 6.30 2,835 -9.89 0.1554
2023-08-11 2023-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 16,217 4,697 40.77 3,145 33.66 0.1704
2023-05-12 2023-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 11,520 2,454 27.07 2,354 22.55 0.1491
2023-02-10 2022-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 9,066 833 10.12 1,921 8.66 0.1270
2022-11-10 2022-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 8,233 262 3.29 1,767 -13.25 0.1279
2022-08-11 2022-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 7,971 691 9.49 2,037 11.43 0.1398
2022-05-11 2022-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 7,280 141 1.98 1,828 -12.45 0.1114
2022-02-09 2021-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 7,139 64 0.90 2,088 11.18 0.1222
2021-11-09 2021-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 7,075 286 4.21 1,878 2.40 0.1207
2021-08-09 2021-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 6,789 1,045 18.19 1,834 33.58 0.1204
2021-05-12 2021-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 5,744 243 4.42 1,373 11.26 0.0965
2021-02-11 2020-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 5,501 301 5.79 1,234 -1.83 0.0954
2020-11-13 2020-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 5,200 294 5.99 1,257 -0.95 0.1107
2020-08-04 2020-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 4,906 13 0.27 1,269 19.04 0.1189
2020-05-11 2020-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 4,893 -237 -4.62 1,066 -9.58 0.1198
2020-02-11 2019-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 5,130 26 0.51 1,179 4.52 0.1049
2019-11-12 2019-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 5,104 588 13.02 1,128 22.21 0.1088
2019-08-13 2019-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 4,516 149 3.41 923 7.33 0.0936
2019-05-15 2019-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 4,367 225 5.43 860 31.30 0.0900
2019-02-06 2018-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 4,142 -135 -3.16 655 5.82 0.0769
2018-11-14 2018-09-30 13F AMERICAN TOWER CORP COM COM 03027X100 4,277 -615 -12.57 619 -12.20 0.0714
2019-04-15 2018-06-30 13F/A-1 AMERICAN TOWER CORP COM COM 03027X100 4,892 965 24.57 705 23.68 0.0860
2018-08-15 2018-06-30 13F AMERICAN TOWER CORP COM COM 03027X100 2,693 -1,234 388
2018-05-15 2018-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 3,927 -967 -19.76 570 -18.45 0.1635
2018-02-12 2017-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 4,894 -46 -0.93 699 3.56 0.2735
2017-11-13 2017-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 4,940 1,054 27.12 675 31.32 0.2662
2017-08-09 2017-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 3,886 3 0.08 514 8.90 0.2122
2017-05-08 2017-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 3,883 431 12.49 472 29.67 0.1951
2017-02-14 2016-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 3,452 -326 -8.63 364 -14.95 0.1610
2016-11-09 2016-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 3,778 -171 -4.33 428 -4.68 0.1816
2016-08-04 2016-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 3,949 9 0.23 449 11.41 0.1976
2016-05-10 2016-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 3,940 -270 -6.41 403 -1.23 0.1954
2016-02-11 2015-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 4,210 77 1.86 408 12.09 0.2031
2015-11-06 2015-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 4,133 -760 -15.53 364 -20.18 0.2069
2015-08-10 2015-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 4,893 -736 -13.08 456 -13.96 0.2297
2015-05-07 2015-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 5,629 -72 -1.26 530 -6.03 0.2677
2015-02-13 2014-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 5,701 5,701 564 0.3391
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.