American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionFDx Advisors, Inc.
Latest Disclosed Ownership2,778 shares
Latest Disclosed Value $ 479
FDx Advisors, Inc. ownership in AMT / American Tower Corporation

On May 1, 2026 - FDx Advisors, Inc. filed a 13F-HR form disclosing ownership of 2,778 shares of American Tower Corporation (US:AMT) valued at $479,427 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 2, 2024 disclosing 0 shares of American Tower Corporation. The current value of the position is $538,682 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)
2026-05-01 2026-03-31 13F AMERICAN TOWER CORP COM REIT 03027X100 2,778 2,778 0 0.1529
2024-08-02 2024-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 0 -1,637 -100.00 0 0.0000
2024-05-03 2024-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,637 -131 -7.41 0 0.0490
2024-02-13 2023-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,768 396 28.86 0 0.0295
2023-11-02 2023-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,372 -15,790 -92.01 0 -100.00 0.0188
2023-07-17 2023-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 17,162 -5,368 -23.83 3 -25.00 0.1825
2023-05-22 2023-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 22,530 0 0.00 5 0.00 0.2076
2023-02-10 2022-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 22,530 -8,701 -27.86 5 -99.94 0.2076
2022-11-10 2022-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 31,231 -356 -1.13 6,705 -16.95 0.3006
2022-08-03 2022-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 31,587 1,152 3.79 8,073 5.58 0.3031
2022-05-03 2022-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 30,435 -7,338 -19.43 7,646 -30.80 0.2591
2022-02-01 2021-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 37,773 999 2.72 11,049 13.21 0.3056
2021-10-08 2021-09-30 13F REIT AMERICAN TOWER CORP NEW COM 03027X100 36,774 1,950 5.60 9,760 3.75 0.3110
2021-08-05 2021-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 34,824 8,253 31.06 9,407 48.10 0.3125
2021-04-14 2021-03-31 13F/A-1 AMERICAN TOWER CORP NEW COM REIT 03027X100 26,571 10,524 65.58 6,352 76.35 0.2396
2021-04-13 2021-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 6,352 -9,695 26,571 113,299.8629
2021-02-08 2020-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 16,047 2,321 16.91 3,602 8.56 0.1485
2020-11-12 2020-09-30 13F AMERICAN VANGUARD CORP COM REIT 03027X100 13,726 -1,004 -6.82 3,318 -12.87 0.1553
2020-07-22 2020-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 14,730 2,496 20.40 3,808 42.94 0.1995
2020-05-22 2020-03-31 13F/A-1 AMERICAN TOWER CORP NEW COM REIT 03027X100 12,234 5,407 79.20 2,664 69.79 0.1732
2020-05-13 2020-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 21,637 14,810 237 14,009.9985
2020-02-12 2019-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 6,827 -2,135 -23.82 1,569 -20.84 0.0867
2019-11-07 2019-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 8,962 -207 -2.26 1,982 5.76 0.1372
2019-07-19 2019-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 9,169 -755 -7.61 1,874 -4.19 0.0734
2019-05-14 2019-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 9,924 -1,149 -10.38 1,956 11.64 0.0793
2019-04-29 2018-12-31 13F/A-1 AMERICAN TOWER CORP NEW COM REIT 03027X100 11,073 -2,338 -17.43 1,752 -10.11 0.1440
2019-02-07 2018-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 37,692 24,281 5,962 134,402.8451
2018-11-13 2018-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 13,411 -6,085 -31.21 1,949 -30.67 0.0724
2018-08-08 2018-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 19,496 -5,238 -21.18 2,811 -21.81 0.1016
2018-05-02 2018-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 24,734 8,178 49.40 3,595 52.20 0.1072
2018-02-09 2017-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 16,556 -1,162 -6.56 2,362 -2.48 0.0642
2017-11-03 2017-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 17,718 504 2.93 2,422 6.32 0.0665
2017-08-11 2017-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 17,214 1,347 8.49 2,278 18.15 0.0675
2017-05-15 2017-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 15,867 2,122 15.44 1,928 32.69 0.0590
2017-02-14 2016-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 13,745 7,167 108.95 1,453 95.03 0.0418
2016-11-14 2016-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 6,578 -85 -1.28 745 -1.59 0.0310
2016-08-15 2016-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 6,663 -487 -6.81 757 3.42 0.0342
2016-05-17 2016-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 7,150 -2,831 -28.36 732 -24.38 0.0334
2016-02-17 2015-12-31 13F AMERICAN TOWER REIT 03027X100 9,981 9,981 968 0.0439
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.