American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionWealthspire Advisors, LLC
Latest Disclosed Ownership3,091 shares
Latest Disclosed Value $ 533,496
Wealthspire Advisors, LLC reports 28.60% decrease in ownership of AMT / American Tower Corporation

On May 1, 2026 - Wealthspire Advisors, LLC filed a 13F-HR form disclosing ownership of 3,091 shares of American Tower Corporation (MX:AMT) valued at $533,496 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 4,329 shares of American Tower Corporation. This represents a change in shares of -28.60% 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)
2026-05-01 2026-03-31 13F AMERICAN TOWER COM 03027X100 3,091 -1,238 -28.60 533 -29.87 0.0042
2026-02-12 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 4,329 2,143 98.03 760 80.95 0.0060
2025-11-14 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,186 -775 -26.17 420 -35.78 0.0022
2025-08-11 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,961 -85 -2.79 654 -1.21 0.0037
2025-05-09 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 3,046 175 6.10 663 25.86 0.0040
2025-02-04 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,871 -154 -5.09 527 -25.18 0.0052
2024-11-13 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 3,025 1,647 119.52 703 163.30 0.0072
2024-08-08 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,378 -92 -6.26 268 -7.93 0.0034
2024-05-06 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,470 -225 -13.27 291 -20.55 0.0039
2024-02-07 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,695 320 23.27 366 61.50 0.0052
2023-11-06 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,375 -489 -26.23 226 -37.40 0.0037
2023-08-01 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,864 -48 -2.51 362 -7.44 0.0059
2023-05-09 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,912 -1,401 -42.29 391 -44.37 0.0067
2023-02-14 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 3,313 1,446 77.45 702 74.81 0.0128
2022-11-14 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,867 -157 -7.76 401 -22.44 0.0084
2022-08-09 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,024 938 86.37 517 89.38 0.0108
2022-05-09 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,086 -2,605 -70.58 273 -74.72 0.0061
2022-02-14 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 3,691 -420 -10.22 1,080 -1.01 0.0239
2021-11-15 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 4,111 3,016 275.43 1,091 268.58 0.0226
2021-08-13 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,095 -9,593 -89.75 296 -88.41 0.0078
2021-05-17 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 10,688 5,451 104.09 2,555 117.26 0.0606
2021-02-16 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 5,237 2,068 65.26 1,176 53.52 0.0350
2020-11-16 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 3,169 111 3.63 766 -3.16 0.0455
2020-08-14 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,058 -8,634 -73.85 791 -68.93 0.0551
2020-05-12 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 11,692 10,093 631.21 2,546 593.73 0.1067
2020-02-14 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,599 296 22.72 367 27.43 0.0267
2019-11-12 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,303 1,303 -18.51 288 -21.53 0.0236
2019-05-07 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 0 -406 -100.00 0 -100.00
2019-02-14 2018-12-31 13F AMERICAN TOWER CORP COM 03027X100 406 406 64 0.0062
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.