아메리칸 타워 코퍼레이션
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionGlen Eagle Advisors, LLC
Latest Disclosed Ownership8,339 shares
Latest Disclosed Value $ 1,439,099
Glen Eagle Advisors, LLC reports 11.28% decrease in ownership of AMT / American Tower Corporation

On May 15, 2026 - Glen Eagle Advisors, LLC filed a 13F-HR form disclosing ownership of 8,339 shares of American Tower Corporation (MX:AMT) valued at $1,439,099 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,399 shares of American Tower Corporation. This represents a change in shares of -11.28% during the quarter.

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)
2026-05-15 2026-03-31 13F AMERICAN TOWER CORP COM 03027X100 8,339 -1,060 -11.28 1,439 -12.79 0.2016
2026-02-13 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 9,399 236 2.58 1,650 -6.36 0.2247
2025-11-14 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 9,163 1,754 23.67 1,762 7.64 0.2449
2025-08-14 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 7,409 856 13.06 1,638 14.88 0.2519
2025-05-15 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 6,553 -2,362 -26.49 1,426 -12.84 0.2360
2025-02-18 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 8,915 -1,227 -12.10 1,635 -30.66 0.2712
2024-11-15 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 10,142 -1,654 -14.02 2,359 2.88 0.3980
2024-08-14 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 11,796 595 5.31 2,293 3.57 0.4198
2024-07-03 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 11,201 501 4.68 2,213 -4.16 0.4198
2024-08-13 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 10,700 1,065 11.05 2,310 45.77 0.4800
2024-08-13 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 9,635 2,262 30.68 1,584 10.85 0.3674
2024-08-13 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 7,373 63 0.86 1,430 -4.29 0.3295
2024-08-13 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 7,310 566 8.39 1,494 4.55 0.3749
2024-08-13 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 6,744 1,326 24.47 1,429 22.79 0.3901
2024-08-13 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 5,418 1,881 53.18 1,163 28.65 0.3378
2024-08-13 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,537 1,813 105.16 904 108.78 0.2453
2024-08-13 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,724 505 41.43 433 21.63 0.1131
2024-08-13 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,219 0 0.00 357 10.22 0.0927
2024-08-13 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,219 72 6.28 324 4.53 0.0936
2024-08-13 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,147 163 16.57 310 31.49 0.0963
2024-08-13 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 984 -20 -1.99 235 4.44 0.0821
2024-08-13 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,004 85 9.25 225 1.35 0.0887
2024-08-13 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 919 0 0.00 222 -6.33 0.0995
2024-08-13 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 919 80 9.54 238 30.22 0.1220
2024-08-13 2020-03-31 13F AMERICAN TOWER CORP AMERICAN TOWER CORP NEW 03027X100 839 -100 -10.65 183 -15.35 0.1281
2024-08-13 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 939 286 43.80 216 49.31 0.1153
2024-08-13 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 653 0 0.00 144 8.27 0.0954
2024-08-13 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 653 -100 -13.28 134 -10.14 0.0913
2024-08-13 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 753 -150 -16.61 148 4.23 0.1079
2024-08-13 2018-12-31 13F AMERICAN TOWER CORP COM 03027X100 903 0 0.00 143 8.40 0.1204
2024-08-13 2018-09-30 13F AMERICAN TOWER CORP COM 03027X100 903 0 0.00 131 0.77 0.0937
2024-08-13 2018-06-30 13F AMERICAN TOWER CORP COM 03027X100 903 0 0.00 130 -0.76 0.1020
2024-08-14 2018-03-31 13F/A-1 AMERICAN TOWER CORP AMERICAN TOWER CORP NEW 03027X100 903 -200 -18.13 131 -16.56 0.1083
2024-08-13 2018-03-31 13F AMERICAN TOWER CORP COM 03027X100 8,120 7,017 131 0.1083
2024-08-13 2017-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,103 -222 -16.75 157 -13.26 0.1368
2024-08-13 2017-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,325 -50 -3.64 181 0.00 0.1692
2024-08-13 2017-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,375 0 0.00 182 8.38 0.1455
2024-08-13 2017-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,375 0 0.00 167 15.17 0.1436
2024-08-13 2016-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,375 1,375 145 0.1310
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.