American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionKeel Point, LLC
Latest Disclosed Ownership2,200 shares
Latest Disclosed Value $ 379,604
Keel Point, LLC reports 21.65% decrease in ownership of AMT / American Tower Corporation

On May 29, 2026 - Keel Point, LLC filed a 13F-HR form disclosing ownership of 2,200 shares of American Tower Corporation (MX:AMT) valued at $379,604 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,808 shares of American Tower Corporation. This represents a change in shares of -21.65% 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)
2026-05-29 2026-03-31 13F AMERICAN TOWER COM 03027X100 2,200 -608 -21.65 380 -23.12 0.0246
2026-02-12 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,808 -84 -2.90 493 -11.33 0.0297
2025-12-16 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,892 -141 -4.65 556 -17.01 0.0342
2025-08-15 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,033 142 4.91 670 6.52 0.0443
2025-05-15 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 2,891 700 31.95 629 56.86 0.0488
2025-02-14 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,191 122 5.90 402 -16.63 0.0322
2024-11-14 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,069 36 1.77 481 6.42 0.0401
2024-08-14 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,033 21 1.04 453 13.85 0.0409
2024-04-16 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 2,012 176 9.59 398 0.25 0.0411
2024-01-30 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,836 385 26.53 396 66.39 0.0473
2023-10-26 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,451 139 10.59 239 -6.30 0.0327
2023-07-12 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,312 169 14.79 254 9.01 0.0340
2023-04-03 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,143 21 1.87 234 -1.69 0.0337
2023-01-17 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,122 1,122 238 0.0373
2022-04-27 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 0 -704 -100.00 0 -100.00
2022-01-31 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 704 704 206 0.0231
2021-11-04 2021-09-30 13F AMERICAN TOWER COM 03027X100 0 -764 -100.00 0 -100.00
2021-08-06 2021-06-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 764 -182 -19.24 206 -8.85 0.0229
2021-08-06 2021-06-30 13F AMERICAN TOWER COM 03027X100 2,352 1,406 661 0.1534
2021-05-17 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 946 -305 -24.38 226 -19.57 0.0220
2021-02-10 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,251 -290 -18.82 281 -24.66 0.0250
2020-11-18 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,541 -2,200 -58.81 373 -61.43 0.0339
2020-08-14 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,741 -386 -9.35 967 7.56 0.1001
2020-05-01 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 4,127 -52 -1.24 899 -6.35 0.1162
2020-02-07 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 4,179 91 2.23 960 6.19 0.1044
2019-11-12 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 4,088 -324 -7.34 904 0.22 0.1105
2019-08-08 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 4,412 0 0.00 902 3.80 0.1031
2019-05-14 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 4,412 -649 -12.82 869 8.49 0.1004
2019-02-08 2018-12-31 13F American Tower REIT COM 03027X100 5,061 -460 -8.33 801 -0.12 0.1084
2018-11-07 2018-09-30 13F American Tower REIT COM 03027X100 5,521 -747 -11.92 802 -11.28 0.0996
2018-08-13 2018-06-30 13F American Tower REIT COM 03027X100 6,268 -1,420 -18.47 904 -19.07 0.1203
2018-05-07 2018-03-31 13F American Tower REIT COM 03027X100 7,688 -84 -1.08 1,117 0.72 0.1528
2018-02-08 2017-12-31 13F American Tower REIT COM 03027X100 7,772 -981 -11.21 1,109 -7.27 0.1534
2017-11-09 2017-09-30 13F American Tower REIT COM 03027X100 8,753 42 0.48 1,196 3.73 0.1822
2017-08-15 2017-06-30 13F American Tower REIT COM 03027X100 8,711 98 1.14 1,153 10.12 0.2315
2017-05-15 2017-03-31 13F American Tower REIT COM 03027X100 8,613 -89 -1.02 1,047 13.80 0.2115
2017-02-15 2016-12-31 13F American Tower REIT COM 03027X100 8,702 1,228 16.43 920 8.62 0.2066
2016-11-15 2016-09-30 13F American Tower REIT COM 03027X100 7,474 587 8.52 847 8.31 0.3217
2016-07-12 2016-06-30 13F American Tower REIT COM 03027X100 6,887 783 12.83 782 25.12 0.3368
2016-05-13 2016-03-31 13F/A-1 American Tower REIT COM 03027X100 6,104 3,849 170.69 625 185.39 0.3149
2016-05-13 2016-03-31 13F American Tower REIT COM 03027X100 6,104 625
2016-02-04 2015-12-31 13F American Tower REIT COM 03027X100 2,255 2,255 219 0.1184
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.