アメリカン・タワー・コーポレーション
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionFormidable Asset Management, LLC
Latest Disclosed Ownership1,935 shares
Latest Disclosed Value $ 339,793
Formidable Asset Management, LLC reports 65.05% decrease in ownership of AMT / American Tower Corporation

On April 22, 2026 - Formidable Asset Management, LLC filed a 13F-HR form disclosing ownership of 1,935 shares of American Tower Corporation (MX:AMT) valued at $339,793 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 5,536 shares of American Tower Corporation. This represents a change in shares of -65.05% 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)
2026-04-22 2026-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,935 -3,601 -65.05 340 -68.14 0.0525
2026-01-16 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 5,536 1,663 42.94 1,065 24.44 0.1549
2025-10-29 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 3,873 -117 -2.93 856 -1.50 0.1348
2025-07-16 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,990 0 0.00 868 0.00 0.1452
2025-05-05 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 3,990 435 12.24 868 33.13 0.1451
2025-02-19 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 3,555 -3,242 -47.70 652 -58.73 0.1071
2024-11-12 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 6,797 -463 -6.38 1,581 11.98 0.2525
2024-08-08 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 7,260 -548 -7.02 1,411 -8.50 0.2282
2024-05-15 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 7,808 3,110 66.20 1,543 52.07 0.2515
2024-02-07 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 4,698 -1,697 -26.54 1,014 -2.69 0.2106
2023-11-09 2023-09-30 13F AMERICAN TOWER COM 03027X100 6,395 2,544 66.06 1,042 0.2309
2023-08-15 2023-06-30 13F AMERICAN TOWER CORP COM USD0.01 COM USD0.01 03027X100 3,851 233 6.44 1 0.1630
2023-05-09 2023-03-31 13F AMERICAN TOWER CORP COM USD0.01 COM USD 03027X100 3,618 -1,447 -28.57 1 -100.00 0.1562
2023-02-07 2022-12-31 13F AMERICAN TOWER CORP COM USD0.01 COM USD0.01 03027X100 5,065 1,545 43.89 1 -99.87 0.2424
2022-11-14 2022-09-30 13F AMERICAN TOWER CORP COM USD0.01 COM 03027X100 3,520 61 1.76 743 -15.57 0.1723
2022-08-18 2022-06-30 13F/A-1 AMERICAN TOWER COM 03027X100 3,459 1,850 114.98 880 117.82 0.1981
2022-08-16 2022-06-30 13F AMERICAN TOWER COM 03027X100 3,459 1,850 880 0.2044
2022-05-04 2022-03-31 13F AMERICAN TOWER COM 03027X100 1,609 -2,121 -56.86 404 -62.97 0.0775
2022-02-07 2021-12-31 13F AMERICAN TOWER CORP COM USD0.01 COM USD0.01 03027X100 3,730 -1,871 -33.40 1,091 -26.63 0.2094
2021-11-10 2021-09-30 13F AMERICAN TOWER CORP COM USD0.01 COM USD0.01 03027X100 5,601 2,158 62.68 1,487 55.71 0.2793
2021-08-16 2021-06-30 13F/A-2 AMERICAN TOWER REIT 03027X100 3,443 2,331 209.62 955 261.74 0.2051
2021-08-06 2021-06-30 13F AMERICAN TOWER COM 03027X100 2,352 1,240 661 0.1557
2021-05-12 2021-03-31 13F AMERICAN TOWER CORP COM USD0.01 COM USD0.01 03027X100 1,112 -1,892 -62.98 264 -63.79 0.0574
2020-11-13 2020-09-30 13F AMERICAN TOWER CORP COM COM 03027X100 3,004 3,004 729 0.1986
2020-08-13 2020-06-30 13F AMERICAN TOWER CORPORATION NEW REIT REITs 03027X100 0 -3,084 -100.00 0 -100.00
2020-06-01 2020-03-31 13F AMERICAN TOWER CORPORATION NEW REIT REITs 03027X100 3,084 -174 -5.34 672 -12.39 0.2646
2020-02-13 2019-12-31 13F AMERICAN TOWER CORP COM COM 03027X100 3,258 3,258 767 0.2418
2019-11-08 2019-09-30 13F AMERICAN TOWER CORP COM COM 03027X100 0 -2,998 -100.00 0 -100.00
2019-10-15 2019-06-30 13F AMERICAN TOWER CORP COM COM 03027X100 2,998 2,998 630 0.2167
2016-08-12 2016-06-30 13F AMERICAN TOWER CORP COM 03027X100 0 -266 -100.00 0 -100.00
2016-05-10 2016-03-31 13F AMERICAN TOWER CORP COM 03027X100 266 0 0.00 27 3.85 0.0190
2016-02-02 2015-12-31 13F AMERICAN TOWER CORP COM 03027X100 266 77 40.74 26 62.50 0.0180
2015-11-12 2015-09-30 13F AMERICAN TOWER CORP COM 03027X100 189 189 16 0.0107
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.