American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionCrossmark Global Holdings, Inc.
Latest Disclosed Ownership36,062 shares
Latest Disclosed Value $ 6,223,579
Crossmark Global Holdings, Inc. reports 1.24% decrease in ownership of AMT / American Tower Corporation

On May 11, 2026 - Crossmark Global Holdings, Inc. filed a 13F-HR form disclosing ownership of 36,062 shares of American Tower Corporation (MX:AMT) valued at $6,223,579 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 36,513 shares of American Tower Corporation. This represents a change in shares of -1.24% 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)
2026-05-11 2026-03-31 13F AMERICAN TOWER CORP COM 03027X100 36,062 -451 -1.24 6,224 -2.92 0.0919
2026-02-03 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 36,513 -5,594 -13.29 6,411 -20.84 0.0914
2025-11-12 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 42,107 -13,563 -24.36 8,098 -34.18 0.1213
2025-08-08 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 55,670 -7,361 -11.68 12,304 -10.29 0.1987
2025-04-30 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 63,031 6,025 10.57 13,716 137,050.00 0.2419
2025-01-16 2024-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 57,006 -1,940 -3.29 10 -23.08 0.1906
2024-11-04 2024-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 58,946 -2,689 -4.36 14 18.18 0.2445
2024-07-29 2024-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 61,635 3,305 5.67 12 0.00 0.2290
2024-05-13 2024-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 58,330 16,703 40.13 12 37.50 0.2209
2024-02-13 2023-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 41,627 1,659 4.15 9 33.33 0.1865
2023-11-08 2023-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 39,968 -3,416 -7.87 6 -25.00 0.1437
2023-07-31 2023-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 43,384 -9,082 -17.31 8 -20.00 0.1764
2023-05-12 2023-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 52,466 -6,094 -10.41 11 -16.67 0.2523
2023-01-19 2022-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 58,560 1,794 3.16 12 -99.90 0.3092
2022-11-01 2022-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 56,766 11,555 25.56 12,188 5.47 0.3382
2022-07-29 2022-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 45,211 1,294 2.95 11,556 4.74 0.2994
2022-05-11 2022-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 43,917 -6,414 -12.74 11,033 -25.06 0.2460
2022-01-10 2021-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 50,331 7,943 18.74 14,722 30.86 0.3197
2021-10-21 2021-09-30 13F/A-1 AMERICAN TOWER REIT COM COM 03027X100 42,388 2,501 6.27 11,250 4.41 0.2636
2021-10-13 2021-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 12,428 -27,459 887 0.1015
2021-07-21 2021-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 39,887 -1,262 -3.07 10,775 9.54 0.2534
2021-04-15 2021-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 41,149 5,404 15.12 9,837 22.61 0.2436
2021-01-14 2020-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 35,745 -3,029 -7.81 8,023 -14.40 0.2029
2020-10-08 2020-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 38,774 -433 -1.10 9,373 -7.54 0.2628
2020-08-14 2020-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 39,207 2,727 7.48 10,137 27.61 0.2956
2020-04-28 2020-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 36,480 7,849 27.41 7,944 20.73 0.2843
2020-02-06 2019-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 28,631 1,111 4.04 6,580 8.13 0.1807
2019-10-09 2019-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 27,520 -1,513 -5.21 6,085 2.51 0.1776
2019-07-09 2019-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 29,033 705 2.49 5,936 6.34 0.1664
2019-05-02 2019-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 28,328 -676 -2.33 5,582 21.67 0.1585
2019-01-31 2018-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 29,004 -8,276 -22.20 4,588 -15.30 0.1422
2018-11-08 2018-09-30 13F/A-1 AMERICAN TOWER REIT COM COM 03027X100 37,280 -1,332 -3.45 5,417 -2.69 0.1375
2018-11-06 2018-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 38,612 0 5,567
2018-07-31 2018-06-30 13F AMERICAN TOWER REIT COM COM 03027X100 38,612 -891 -2.26 5,567 -3.03 0.1493
2018-04-16 2018-03-31 13F AMERICAN TOWER REIT COM COM 03027X100 39,503 -2,498 -5.95 5,741 -4.19 0.1484
2018-02-05 2017-12-31 13F AMERICAN TOWER REIT COM COM 03027X100 42,001 1,493 3.69 5,992 8.22 0.1440
2017-10-27 2017-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 40,508 0 0.00 5,537 0.00 0.1427
2017-10-25 2016-09-30 13F AMERICAN TOWER REIT COM COM 03027X100 40,508 40,508 5,537 0.1427
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.