American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionCNB Bank
Latest Disclosed Ownership3,778 shares
Latest Disclosed Value $ 652,007
CNB Bank reports 1.86% increase in ownership of AMT / American Tower Corporation

On May 6, 2026 - CNB Bank filed a 13F-HR form disclosing ownership of 3,778 shares of American Tower Corporation (MX:AMT) valued at $652,007 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 3,709 shares of American Tower Corporation. This represents a change in shares of 1.86% 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)
2026-05-06 2026-03-31 13F AMERICAN TOWER COM 03027X100 3,778 69 1.86 652 0.15 0.2664
2026-02-11 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 3,709 206 5.88 651 -3.27 0.2665
2025-10-30 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 3,503 121 3.58 674 -9.91 0.2807
2025-07-31 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 3,382 -216 -6.00 747 -4.48 0.3543
2025-04-24 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 3,598 -1,209 -25.15 783 -11.24 0.3963
2025-01-15 2024-12-31 13F American Tower COM 03027X100 4,807 -257 -5.08 882 -25.15 0.4097
2024-10-18 2024-09-30 13F American Tower COM 03027X100 5,064 -29 -0.57 1,178 19.01 0.5447
2024-08-08 2024-06-30 13F American Tower COM 03027X100 5,093 1,102 27.61 990 25.51 0.4762
2024-05-02 2024-03-31 13F American Tower COM 03027X100 3,991 74 1.89 789 -6.75 0.3846
2024-01-31 2023-12-31 13F American Tower COM 03027X100 3,917 -73 -1.83 846 28.81 0.4540
2023-11-02 2023-09-30 13F American Tower COM 03027X100 3,990 173 4.53 656 -11.35 0.3864
2023-08-08 2023-06-30 13F American Tower COM 03027X100 3,817 46 1.22 740 -3.90 0.4354
2023-05-10 2023-03-31 13F American Tower COM 03027X100 3,771 70 1.89 771 -1.79 0.4690
2023-02-13 2022-12-31 13F American Tower COM 03027X100 3,701 107 2.98 784 1.69 0.4902
2022-11-14 2022-09-30 13F American Tower COM 03027X100 3,594 131 3.78 771 -12.98 0.5216
2022-08-19 2022-06-30 13F/A-1 American Tower COM 03027X100 3,463 -47 -1.34 886 0.45 0.5731
2022-08-10 2022-06-30 13F American Tower COM 03027X100 3,558 48 910 0.3752
2022-04-13 2022-03-31 13F American Tower COM 03027X100 3,510 -17 -0.48 882 -14.53 0.4889
2022-01-31 2021-12-31 13F American Tower COM 03027X100 3,527 140 4.13 1,032 14.92 0.5654
2021-11-02 2021-09-30 13F American Tower COM 03027X100 3,387 128 3.93 898 1.93 0.5393
2021-07-29 2021-06-30 13F American Tower COM 03027X100 3,259 113 3.59 881 17.15 0.5509
2021-05-03 2021-03-31 13F American Tower COM 03027X100 3,146 248 8.56 752 15.69 0.5203
2021-01-27 2020-12-31 13F American Tower COM 03027X100 2,898 188 6.94 650 -0.91 0.4909
2020-10-26 2020-09-30 13F American Tower COM 03027X100 2,710 -501 -15.60 656 -21.06 0.5522
2020-07-14 2020-06-30 13F American Tower COM 03027X100 3,211 -14 -0.43 831 18.38 0.7314
2020-05-13 2020-03-31 13F American Tower COM 03027X100 3,225 -423 -11.60 702 -16.23 0.7562
2020-01-27 2019-12-31 13F American Tower COM 03027X100 3,648 6 0.16 838 4.10 0.7094
2019-11-04 2019-09-30 13F American Tower COM 03027X100 3,642 -496 -11.99 805 -4.85 0.7451
2019-08-14 2019-06-30 13F American Tower COM 03027X100 4,138 -383 -8.47 846 -5.05 0.7220
2019-04-29 2019-03-31 13F American Tower COM 03027X100 4,521 390 9.44 891 36.24 0.4589
2019-02-06 2018-12-31 13F American Tower COM 03027X100 4,131 1,112 36.83 654 48.97 0.4167
2018-11-13 2018-09-30 13F American Tower COM 03027X100 3,019 -170 -5.33 439 -4.57 0.2512
2018-08-14 2018-06-30 13F American Tower COM 03027X100 3,189 183 6.09 460 5.26 0.2679
2018-05-11 2018-03-31 13F American Tower COM 03027X100 3,006 729 32.02 437 34.46 0.2553
2018-02-20 2017-12-31 13F American Tower COM 03027X100 2,277 2,277 325 0.1944
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.