아메리칸 타워 코퍼레이션
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionTd Asset Management Inc
Latest Disclosed Ownership212,155 shares
Latest Disclosed Value $ 36,613,710
Td Asset Management Inc reports 14.27% increase in ownership of AMT / American Tower Corporation

On May 11, 2026 - Td Asset Management Inc filed a 13F-HR form disclosing ownership of 212,155 shares of American Tower Corporation (MX:AMT) valued at $36,613,710 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 185,661 shares of American Tower Corporation. This represents a change in shares of 14.27% 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)
2026-05-11 2026-03-31 13F AMERICAN TOWER COM 03027X100 212,155 26,494 14.27 36,614 12.32 0.0297
2026-02-10 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 185,661 -142,013 -43.34 32,597 -48.28 0.0262
2025-11-10 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 327,674 -14,432 -4.22 63,018 -16.66 0.0512
2025-07-28 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 342,106 1,774 0.52 75,612 2.10 0.0645
2025-05-07 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 340,332 59,769 21.30 74,056 43.92 0.0682
2025-02-11 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 280,563 -193,164 -40.78 51,458 -52.84 0.0455
2024-11-01 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 473,727 196,501 70.88 109,109 102.48 0.0963
2024-08-02 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 277,226 -53,072 -16.07 53,887 -17.43 0.0503
2024-05-08 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 330,298 54,870 19.92 65,264 9.76 0.0607
2024-02-12 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 275,428 51,882 23.21 59,459 61.74 0.0585
2023-10-27 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 223,546 -161,327 -41.92 36,762 -50.75 0.0445
2023-08-09 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 384,873 -58,282 -13.15 74,642 -17.57 0.0850
2023-05-10 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 443,155 -82,146 -15.64 90,554 -18.63 0.1093
2023-02-07 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 525,301 -67,512 -11.39 111,290 -12.16 0.1373
2022-11-07 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 592,813 -5,539 -0.93 126,696 -17.16 0.1586
2022-08-04 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 598,352 566,574 1,782.91 152,933 1,815.49 0.1772
2022-05-10 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 31,778 -680,070 -95.54 7,984 -96.17 0.0047
2022-05-10 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 654,020 164,303
2022-02-10 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 711,848 122,058 20.70 208,216 33.01 0.1743
2021-11-09 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 589,790 845 0.14 156,536 -6.01 0.1625
2021-08-11 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 588,945 3,305 0.56 166,554 18.96 0.1691
2021-05-14 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 585,640 21,474 3.81 140,003 10.56 0.1565
2021-02-16 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 564,166 26,105 4.85 126,632 -2.64 0.1538
2020-11-10 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 538,061 49,794 10.20 130,065 3.03 0.1804
2020-08-13 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 488,267 107,592 28.26 126,237 52.29 0.1796
2020-05-15 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 380,675 31,030 8.87 82,892 3.16 0.1403
2020-02-11 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 349,645 -19,479 -5.28 80,355 -1.55 0.1167
2019-11-07 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 369,124 4,615 1.27 81,624 9.53 0.1248
2019-08-01 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 364,509 8,536 2.40 74,524 6.24 0.1116
2019-05-08 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 355,973 5,421 1.55 70,148 26.50 0.1071
2019-02-01 2018-12-31 13F AMERICAN TOWER CORP COM 03027X100 350,552 -5,953 -1.67 55,454 7.05 0.0965
2018-11-01 2018-09-30 13F AMERICAN TOWER CORP COM 03027X100 356,505 -12,451 -3.37 51,800 -2.62 0.0766
2018-07-31 2018-06-30 13F AMERICAN TOWER CORP COM 03027X100 368,956 -41,001 -10.00 53,192 -10.73 0.0811
2018-05-11 2018-03-31 13F AMERICAN TOWER CORP COM 03027X100 409,957 -54,201 -11.68 59,583 -10.02 0.0912
2018-02-02 2017-12-31 13F AMERICAN TOWER CORP COM 03027X100 464,158 -105,693 -18.55 66,221 -14.98 0.0965
2017-11-09 2017-09-30 13F AMERICAN TOWER CORP COM 03027X100 569,851 -26,740 -4.48 77,887 -1.34 0.1168
2017-08-01 2017-06-30 13F AMERICAN TOWER CORP COM 03027X100 596,591 -14,860 -2.43 78,941 6.22 0.1244
2017-05-05 2017-03-31 13F AMERICAN TOWER CORP COM 03027X100 611,451 5,560 0.92 74,316 16.06 0.1185
2017-02-08 2016-12-31 13F AMERICAN TOWER CORP COM 03027X100 605,891 -30,674 -4.82 64,031 -11.24 0.1080
2016-11-02 2016-09-30 13F AMERICAN TOWER CORP COM 03027X100 636,565 -6,077 -0.95 72,142 -1.19 0.1248
2016-08-04 2016-06-30 13F AMERICAN TOWER CORP COM 03027X100 642,642 -1,344 -0.21 73,010 10.75 0.1324
2016-05-05 2016-03-31 13F AMERICAN TOWER CORP COM 03027X100 643,986 -18,962 -2.86 65,925 2.57 0.1233
2016-02-04 2015-12-31 13F AMERICAN TOWER CORP COM 03027X100 662,948 13,600 2.09 64,273 12.50 0.1275
2015-11-12 2015-09-30 13F AMERICAN TOWER CORP COM 03027X100 649,348 -113,000 -14.82 57,130 -19.67 0.1125
2015-08-11 2015-06-30 13F AMERICAN TOWER CORP COM 03027X100 762,348 147,718 24.03 71,119 22.90 0.1270
2015-04-28 2015-03-31 13F AMERICAN TOWER CORP COM 03027X100 614,630 614,630 0.00 57,867 0.1044
2015-01-30 2014-12-31 13F AMERICAN TOWER CORP COM 03027X100 0 -668,903 -100.00 0 -100.00
2014-11-06 2014-09-30 13F AMERICAN TOWER CORP COM 03027X100 668,903 2,970 0.45 62,629 4.52 0.1080
2014-08-12 2014-06-30 13F AMERICAN TOWER CORP COM 03027X100 665,933 -2,500 -0.37 59,921 9.49 0.1021
2014-05-09 2014-03-31 13F AMERICAN TOWER CORP COM 03027X100 668,433 -5,700 -0.85 54,725 1.70 0.0995
2014-02-07 2013-12-31 13F AMERICAN TOWER CORP COM 03027X100 674,133 -3,600 -0.53 53,809 7.10 0.1005
2013-11-08 2013-09-30 13F AMERICAN TOWER CORP COM 03027X100 677,733 45,600 7.21 50,240 8.62 0.0998
2013-07-24 2013-06-30 13F AMERICAN TOWER CORP COM 03027X100 632,133 632,133 46,253 0.0992
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.