아메리칸 타워 코퍼레이션
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionDMG Group, LLC
Latest Disclosed Ownership2,973 shares
Latest Disclosed Value $ 513,080
DMG Group, LLC reports 13.78% increase in ownership of AMT / American Tower Corporation

On April 30, 2026 - DMG Group, LLC filed a 13F-HR form disclosing ownership of 2,973 shares of American Tower Corporation (MX:AMT) valued at $513,080 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 2,613 shares of American Tower Corporation. This represents a change in shares of 13.78% 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)
2026-04-30 2026-03-31 13F AMERICAN TOWER CORP COM REIT 03027X100 2,973 360 13.78 513 12.01 0.3466
2026-01-21 2025-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 2,613 27 1.04 459 -7.85 0.3060
2025-10-29 2025-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 2,586 127 5.16 497 -8.47 0.3442
2025-07-23 2025-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 2,459 216 9.63 543 11.27 0.4225
2025-04-30 2025-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 2,243 98 4.57 488 24.17 0.3976
2025-01-23 2024-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 2,145 -39 -1.79 393 -22.49 0.3200
2024-10-18 2024-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 2,184 237 12.17 508 34.13 0.4110
2024-07-16 2024-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,947 622 46.94 378 44.83 0.3243
2024-04-19 2024-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,325 -115 -7.99 262 -15.81 0.2262
2024-01-10 2023-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,440 -120 -7.69 311 21.09 0.2939
2023-10-26 2023-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,560 -25 -1.58 257 -16.61 0.2401
2023-07-13 2023-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,585 -123 -7.20 307 -10.50 0.3073
2023-04-24 2023-03-31 13F/A-1 AMERICAN TOWER CORP NEW COM REIT 03027X100 1,708 200 13.26 343 0.3468
2023-04-24 2023-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,708 200 0 0.3463
2023-02-07 2022-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,508 -94 -5.87 0 -100.00 0.3656
2022-10-27 2022-09-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,602 254 18.84 348 0.29 0.4205
2022-08-09 2022-06-30 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,348 -211 -13.53 347 -14.95 0.4108
2022-04-25 2022-03-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 1,559 -1,454 -48.26 408 -42.70 0.4565
2022-01-31 2021-12-31 13F AMERICAN TOWER CORP NEW COM REIT 03027X100 3,013 3,013 712 0.6142
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.