美國鐵塔公司
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionApriem Advisors
Latest Disclosed Ownership5,165 shares
Latest Disclosed Value $ 891,376
Apriem Advisors reports 14.47% decrease in ownership of AMT / American Tower Corporation

On May 14, 2026 - Apriem Advisors filed a 13F-HR form disclosing ownership of 5,165 shares of American Tower Corporation (MX:AMT) valued at $891,376 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,039 shares of American Tower Corporation. This represents a change in shares of -14.47% 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 5,165 -874 -14.47 891 -15.94 0.0851
2026-02-13 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 6,039 -689 -10.24 1,060 -18.02 0.0973
2025-11-10 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 6,728 -120 -1.75 1,294 -14.54 0.1224
2025-08-14 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 6,848 -22,677 -76.81 1,514 -76.45 0.1609
2025-05-15 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 29,525 -17,088 -36.66 6,425 -24.86 0.7528
2025-02-05 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 46,613 -28,258 -37.74 8,549 -50.90 0.9792
2024-11-14 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 74,871 -2,757 -3.55 17,412 15.39 2.0337
2024-08-14 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 77,628 -1,551 -1.96 15,089 -3.55 1.8473
2024-05-15 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 79,179 -2,277 -2.80 15,645 -11.03 1.9655
2024-02-14 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 81,456 -2,893 -3.43 17,585 26.77 2.3493
2023-11-13 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 84,349 4,519 5.66 13,871 -10.41 2.0326
2023-08-08 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 79,830 -997 -1.23 15,482 -6.26 2.3216
2023-05-12 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 80,827 1,869 2.37 16,516 -1.27 2.6425
2023-02-13 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 78,958 828 1.06 16,728 -0.28 2.8989
2022-11-14 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 78,130 -591 -0.75 16,775 -16.63 3.0243
2022-08-08 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 78,721 2,022 2.64 20,120 4.42 3.4655
2022-05-10 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 76,699 76,699 19,268 2.8267
2017-08-04 2017-06-30 13F AMERICAN TOWER oa 03027X100 0 -80 -100.00 0 -100.00
2017-05-13 2017-03-31 13F AMERICAN TOWER oa 03027X100 80 0 0.00 10 25.00 0.0027
2017-02-14 2016-12-31 13F AMERICAN TOWER oa 03027X100 80 30 60.00 8 33.33 0.0024
2016-11-14 2016-09-30 13F AMERICAN TOWER oa 03027X100 50 -1,000 -95.24 6 -94.96 0.0018
2016-08-12 2016-06-30 13F AMERICAN TOWER oa 03027X100 1,050 1,000 2,000.00 119 2,280.00 0.0387
2016-05-13 2016-03-31 13F AMERICAN TOWER oa 03027X100 50 0 0.00 5 0.00 0.0020
2016-02-09 2015-12-31 13F AMERICAN TOWER oa 03027X100 50 0 0.00 5 25.00 0.0018
2015-11-13 2015-09-30 13F AMERICAN TOWER oa 03027X100 50 0 0.00 4 -20.00 0.0015
2015-08-14 2015-06-30 13F AMERICAN TOWER oa 03027X100 50 0 0.00 5 0.00 0.0017
2015-05-07 2015-03-31 13F AMERICAN TOWER oa 03027X100 50 0 0.00 5 0.00 0.0017
2015-02-12 2014-12-31 13F AMERICAN TOWER oa 03027X100 50 50 5 0.0018
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.