American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionFifth Third Bancorp
Latest Disclosed Ownership117,471 shares
Latest Disclosed Value $ 20,273,145
Fifth Third Bancorp reports 28.53% increase in ownership of AMT / American Tower Corporation

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 117,471 shares of American Tower Corporation (US:AMT) valued at $20,273,145 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 91,394 shares of American Tower Corporation. This represents a change in shares of 28.53% during the quarter. The current value of the position is $22,778,802 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 COM 03027X100 117,471 26,077 28.53 20,273 26.34 0.0370
2026-02-02 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 91,394 -50,024 -35.37 16,046 -41.00 0.0510
2025-11-07 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 141,418 -9,677 -6.40 27,198 -18.56 0.0870
2025-07-15 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 151,095 20,001 15.26 33,395 17.07 0.1154
2025-04-15 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 131,094 -2,502 -1.87 28,526 16.42 0.1084
2025-01-21 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 133,596 -2,293 -1.69 24,503 -22.47 0.0889
2024-10-17 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 135,889 4,075 3.09 31,602 23.34 0.1145
2024-07-22 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 131,814 -18,403 -12.25 25,622 -13.68 0.0976
2024-04-23 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 150,217 5,924 4.11 29,681 -4.71 0.1161
2024-01-19 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 144,293 -17,383 -10.75 31,150 17.16 0.1325
2023-10-31 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 161,676 1,474 0.92 26,588 -14.43 0.1233
2023-07-26 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 160,202 5,656 3.66 31,070 -1.61 0.1371
2023-04-24 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 154,546 -8,366 -5.14 31,580 -8.50 0.1470
2023-01-25 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 162,912 -41,142 -20.16 34,515 -21.22 0.1659
2022-10-25 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 204,054 15,815 8.40 43,811 -8.94 0.2289
2022-08-04 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 188,239 2,287 1.23 48,112 2.99 0.2326
2022-04-19 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 185,952 -3,928 -2.07 46,715 -15.89 0.1908
2022-02-01 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 189,880 14,722 8.40 55,540 19.47 0.2159
2021-10-15 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 175,158 -257 -0.15 46,489 -1.90 0.2020
2021-08-06 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 175,415 -2,419 -1.36 47,387 11.46 0.2079
2021-05-07 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 177,834 -663 -0.37 42,513 6.11 0.1973
2021-02-16 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 178,497 13,846 8.41 40,065 0.66 0.1970
2020-11-09 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 164,651 2,912 1.80 39,801 -4.82 0.2199
2020-08-05 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 161,739 13,652 9.22 41,816 29.68 0.2507
2020-05-05 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 148,087 38,451 35.07 32,246 27.98 0.2301
2020-02-14 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 109,636 9,111 9.06 25,197 13.35 0.1403
2019-11-14 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 100,525 7,988 8.63 22,229 17.50 0.1333
2019-08-07 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 92,537 -4,829 -4.96 18,919 -1.40 0.1156
2019-05-14 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 97,366 -9,277 -8.70 19,187 13.73 0.1231
2019-02-14 2018-12-31 13F AMERICAN TOWER CORP COM 03027X100 106,643 -11,562 -9.78 16,870 -1.78 0.1227
2018-11-14 2018-09-30 13F AMERICAN TOWER CORP COM 03027X100 118,205 -4,949 -4.02 17,175 -3.27 0.1093
2018-08-14 2018-06-30 13F AMERICAN TOWER CORP COM 03027X100 123,154 -3,672 -2.90 17,755 -3.68 0.1204
2018-05-15 2018-03-31 13F AMERICAN TOWER CORP COM 03027X100 126,826 8,728 7.39 18,433 9.40 0.1256
2018-02-14 2017-12-31 13F AMERICAN TOWER CORP COM 03027X100 118,098 1,718 1.48 16,849 5.92 0.1146
2017-11-14 2017-09-30 13F AMERICAN TOWER CORP COM 03027X100 116,380 -3,771 -3.14 15,907 0.06 0.1138
2017-08-11 2017-06-30 13F AMERICAN TOWER CORP COM 03027X100 120,151 7,861 7.00 15,898 16.49 0.1170
2017-05-12 2017-03-31 13F AMERICAN TOWER CORP COM 03027X100 112,290 -1,467 -1.29 13,648 13.53 0.1032
2017-02-13 2016-12-31 13F/A-1 AMERICAN TOWER CORP COM 03027X100 113,757 61,284 116.79 12,022 102.15 0.0970
2017-02-09 2016-12-31 13F AMERICAN TOWER CORP COM 03027X100 52,473 0 5,947 0.0492
2016-11-10 2016-09-30 13F AMERICAN TOWER CORP COM 03027X100 52,473 2,252 4.48 5,947 4.22 0.0492
2016-08-11 2016-06-30 13F AMERICAN TOWER CORP COM 03027X100 50,221 -4,975 -9.01 5,706 0.99 0.0485
2016-05-13 2016-03-31 13F AMERICAN TOWER CORP COM 03027X100 55,196 -3,742 -6.35 5,650 -1.12 0.0489
2016-02-16 2015-12-31 13F AMERICAN TOWER CORP COM 03027X100 58,938 30,534 107.50 5,714 128.65 0.0502
2015-11-13 2015-09-30 13F AMERICAN TOWER CORP COM 03027X100 28,404 -1,895 -6.25 2,499 -11.60 0.0232
2015-08-14 2015-06-30 13F AMERICAN TOWER CORP COM 03027X100 30,299 -749 -2.41 2,827 -3.28 0.0247
2015-05-14 2015-03-31 13F AMERICAN TOWER CORP COM 03027X100 31,048 -141 -0.45 2,923 -5.19 0.0253
2015-02-13 2014-12-31 13F AMERICAN TOWER CORP COM 03027X100 31,189 -530 -1.67 3,083 3.80 0.0263
2014-11-17 2014-09-30 13F AMERICAN TOWER CORP COM 03027X100 31,719 -1,428 -4.31 2,970 -0.44 0.0271
2014-08-14 2014-06-30 13F AMERICAN TOWER CORP COM 03027X100 33,147 -7,337 -18.12 2,983 -9.99 0.0270
2014-05-15 2014-03-31 13F AMERICAN TOWER CORP COM 03027X100 40,484 -688 -1.67 3,314 0.85 0.0311
2014-02-14 2013-12-31 13F AMERICAN TOWER CORP COM 03027X100 41,172 -1,621 -3.79 3,286 3.59 0.0318
2013-11-14 2013-09-30 13F AMERICAN TOWER CORP COM 03027X100 42,793 -49,822 -53.79 3,172 -53.19 0.0327
2013-08-14 2013-06-30 13F AMERICAN TOWER CORP COM 03027X100 92,615 92,615 6,777 0.0723
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.