American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionUs Bancorp \de\
Latest Disclosed Ownership816,817 shares
Latest Disclosed Value $ 140,968,393
Us Bancorp \de\ reports 6.89% decrease in ownership of AMT / American Tower Corporation

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 816,817 shares of American Tower Corporation (MX:AMT) valued at $140,968,393 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 877,243 shares of American Tower Corporation. This represents a change in shares of -6.89% 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)
2026-05-14 2026-03-31 13F AMERICAN TOWER COM 03027X100 816,817 -60,426 -6.89 140,968 -8.47 0.1711
2026-01-30 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 877,243 -98,868 -10.13 154,019 -17.96 0.1805
2025-11-12 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 976,111 -39,418 -3.88 187,729 -16.36 0.2225
2025-07-24 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,015,529 -45,348 -4.27 224,455 -2.77 0.2826
2025-05-08 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,060,877 -35,277 -3.22 230,849 14.82 0.3084
2025-02-05 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,096,154 -50,701 -4.42 201,047 -24.62 0.2632
2024-10-28 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,146,855 -115,629 -9.16 266,715 8.68 0.3425
2024-08-07 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,262,484 -14,351 -1.12 245,402 -2.73 0.3345
2024-05-08 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,276,835 -8,777 -0.68 252,290 -9.10 0.3516
2024-02-09 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,285,612 -101,195 -7.30 277,538 21.40 0.4106
2023-11-03 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,386,807 154,832 12.57 228,616 -4.32 0.3736
2023-08-10 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,231,975 1,753 0.14 238,929 -4.95 0.3847
2023-05-09 2023-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 1,230,222 11,142 0.91 251,384 -2.67 0.4247
2023-02-13 2022-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 1,219,080 97,222 8.67 258,274 7.23 0.4572
2022-10-27 2022-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 1,121,858 -11,630 -1.03 240,862 -16.86 0.4971
2022-08-01 2022-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 1,133,488 -5,548 -0.49 289,709 1.24 0.5615
2022-05-11 2022-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 1,139,036 -1,929 -0.17 286,149 -14.26 0.4763
2022-02-11 2021-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 1,140,965 -1,942 -0.17 333,733 10.02 0.5263
2021-11-10 2021-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 1,142,907 -19,125 -1.65 303,339 -3.37 0.5705
2021-08-05 2021-06-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 1,162,032 8,628 0.75 313,912 13.85 0.5879
2021-04-28 2021-03-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 1,153,404 61,209 5.60 275,733 12.47 0.5577
2021-02-04 2020-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 1,092,195 40,810 3.88 245,154 -3.54 0.5280
2020-11-10 2020-09-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 1,051,385 41,459 4.11 254,151 -2.66 0.6198
2020-08-07 2020-06-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 1,009,926 52,749 5.51 261,106 25.28 0.6852
2020-05-13 2020-03-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 957,177 -8,624 -0.89 208,425 -6.10 0.6501
2020-02-04 2019-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 965,801 8,524 0.89 221,959 4.86 0.5674
2019-11-08 2019-09-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 957,277 1,174 0.12 211,681 8.29 0.5769
2019-08-13 2019-06-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 956,103 1,148 0.12 195,476 3.88 0.5448
2019-05-08 2019-03-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 954,955 -13,690 -1.41 188,183 22.81 0.5431
2019-02-13 2018-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 968,645 30,926 3.30 153,229 12.46 0.4948
2018-10-31 2018-09-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 937,719 13,385 1.45 136,252 2.24 0.3944
2018-08-08 2018-06-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 924,334 32,406 3.63 133,261 2.80 0.4083
2018-05-08 2018-03-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 891,928 66,002 7.99 129,632 10.01 0.3978
2018-02-02 2017-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 825,926 14,440 1.78 117,835 6.24 0.3603
2017-11-13 2017-09-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 811,486 33,433 4.30 110,915 7.74 0.3553
2017-07-19 2017-06-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 778,053 48,385 6.63 102,951 16.09 0.3435
2017-05-03 2017-03-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 729,668 104,821 16.78 88,684 34.30 0.3038
2017-02-08 2016-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 624,847 14,439 2.37 66,035 -4.54 0.2376
2016-11-04 2016-09-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 610,408 19,032 3.22 69,178 2.96 0.2564
2016-08-10 2016-06-30 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 591,376 20,508 3.59 67,186 14.97 0.2555
2016-05-13 2016-03-31 13F AMERICAN TOWER CORP CL A OTHER 03027X100 570,868 16,489 2.97 58,440 8.73 0.2297
2016-02-10 2015-12-31 13F AMERICAN TOWER CORP CL A COMMON STOCK 03027X100 554,379 2,413 0.44 53,748 10.68 0.2162
2015-11-16 2015-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 551,966 14,493 2.70 48,562 -3.15 0.2036
2015-08-10 2015-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 537,473 2,179 0.41 50,140 -0.51 0.1943
2015-05-08 2015-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 535,294 6,205 1.17 50,398 -3.64 0.1937
2015-02-13 2014-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 529,089 1,723 0.33 52,301 5.92 0.2022
2014-11-14 2014-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 527,366 -9,637 -1.79 49,378 2.19 0.2000
2014-08-14 2014-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 537,003 -9,718 -1.78 48,319 7.95 0.1925
2014-05-14 2014-03-31 13F AMERICAN TOWER COMMON STOCK 03027X100 546,721 6,265 1.16 44,759 3.76 0.1834
2014-02-13 2013-12-31 13F AMERICAN TOWER COMMON STOCK 03027X100 540,456 9,669 1.82 43,139 9.64 0.1748
2013-11-07 2013-09-30 13F AMERICAN TOWER COMMON STOCK 03027X100 530,787 -10,770 -1.99 39,347 -0.70 0.1738
2013-08-09 2013-06-30 13F AMERICAN TOWER COMMON STOCK 03027X100 541,557 541,557 39,625 0.1808
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.