American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionLandscape Capital Management, L.l.c.
Latest Disclosed Ownership10,575 shares
Latest Disclosed Value $ 1,825,033
Landscape Capital Management, L.l.c. ownership in AMT / American Tower Corporation

On May 12, 2026 - Landscape Capital Management, L.l.c. filed a 13F-HR form disclosing ownership of 10,575 shares of American Tower Corporation (MX:AMT) valued at $1,825,033 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of American Tower Corporation.

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)
2026-05-12 2026-03-31 13F AMERICAN TOWER CORP COM 03027X100 10,575 10,575 1,825 0.0581
2025-11-13 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 0 -4,285 -100.00 0 -100.00
2025-08-12 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 4,285 4,285 947 0.0743
2025-02-12 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 0 -1,565 -100.00 0 -100.00
2024-11-08 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,565 1,565 364 0.0370
2021-08-03 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 0 -4,497 -100.00 0 -100.00
2021-05-11 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 4,497 4,497 1,075 0.1686
2018-11-13 2018-09-30 13F AMERICAN TOWER CORP COM 03027X100 0 -3,000 -100.00 0 -100.00
2018-08-13 2018-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,000 -15,200 -83.52 433 -83.63 0.0362
2018-05-11 2018-03-31 13F AMERICAN TOWER CORP COM 03027X100 18,200 5,000 37.88 2,645 40.47 0.1881
2018-02-13 2017-12-31 13F AMERICAN TOWER CORP COM 03027X100 13,200 -600 -4.35 1,883 -0.16 0.1676
2017-11-14 2017-09-30 13F AMERICAN TOWER CORP COM 03027X100 13,800 13,800 4.55 1,886 0.16 0.1894
2017-08-14 2017-06-30 13F AMERICAN TOWER CORP COM 03027X100 0 -32,700 -100.00 0 -100.00
2017-05-12 2017-03-31 13F AMERICAN TOWER CORP COM 03027X100 32,700 14,200 76.76 3,974 103.27 0.3880
2017-02-13 2016-12-31 13F AMERICAN TOWER CORP COM 03027X100 18,500 -7,000 -27.45 1,955 -32.35 0.2666
2016-11-14 2016-09-30 13F AMERICAN TOWER CORP COM 03027X100 25,500 25,500 37.84 2,890 47.83 0.3889
2016-05-11 2016-03-31 13F AMERICAN TOWER CORP COM 03027X100 0 -35,002 -100.00 0 -100.00
2016-02-11 2015-12-31 13F AMERICAN TOWER CORP COM 03027X100 35,002 23,502 204.37 3,393 235.28 0.4234
2015-11-10 2015-09-30 13F AMERICAN TOWER CORP COM 03027X100 11,500 -25,800 -69.17 1,012 -70.92 0.1378
2015-08-12 2015-06-30 13F AMERICAN TOWER CORP COM 03027X100 37,300 3,700 11.01 3,480 10.02 0.5911
2015-05-14 2015-03-31 13F AMERICAN TOWER CORP COM 03027X100 33,600 13,500 67.16 3,163 59.18 0.8437
2015-02-12 2014-12-31 13F AMERICAN TOWER CORP COM 03027X100 20,100 -2,400 -10.67 1,987 -5.70 0.9746
2014-11-13 2014-09-30 13F AMERICAN TOWER CORP COM 03027X100 22,500 11,700 108.33 2,107 144.43 1.4510
2014-02-12 2013-12-31 13F AMERICAN TOWER CORP COM 03027X100 10,800 10,800 862 0.7918
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.