American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionAptus Capital Advisors, LLC
Latest Disclosed Ownership83,803 shares
Latest Disclosed Value $ 14,462,796
Aptus Capital Advisors, LLC ownership in AMT / American Tower Corporation

On May 11, 2026 - Aptus Capital Advisors, LLC filed a 13F-HR form disclosing ownership of 83,803 shares of American Tower Corporation (MX:AMT) valued at $14,462,796 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 78,257 shares of American Tower Corporation. This represents a change in shares of 7.09% during the quarter.

Aptus Capital Advisors, LLC has a history of taking positions in derivatives of the underlying security (AMT) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:AMT / American Tower Corporation Historical Put/Call Ratio
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 COM 03027X100 83,803 5,546 7.09 14,463 5.19 0.1136
2026-02-13 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 78,257 -71,376 -47.70 13,749 -52.24 0.0985
2025-11-12 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 149,633 4,642 3.20 28,787 -10.19 0.2094
2025-08-11 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 144,991 75,760 109.43 32,055 112.79 0.2612
2025-05-13 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 69,231 7,422 12.01 15,065 32.04 0.1550
2025-02-14 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 61,809 12,230 24.67 11,410 -1.05 0.1195
2024-11-05 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 49,579 4,247 9.37 11,530 30.86 0.1720
2024-07-31 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 45,332 679 1.52 8,812 -0.12 0.1551
2024-05-15 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 44,653 -28,048 -38.58 8,823 -43.79 0.1641
2024-02-13 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 72,701 648 0.90 15,695 32.45 0.4292
2023-11-08 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 72,053 7,778 12.10 11,849 -4.94 0.3228
2023-08-11 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 64,275 -2,155 -3.24 12,465 -8.17 0.2989
2023-05-09 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 66,430 36,910 125.03 13,574 117.05 0.3647
2023-02-13 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 29,520 6,917 30.60 6,254 28.87 0.1920
2022-11-02 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 22,603 20,796 1,150.86 4,853 943.66 0.1168
2022-07-29 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,807 -132 -6.81 465 -4.52 0.0121
2022-05-04 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,939 -10,994 -85.01 487 -87.13 0.0121
2022-02-02 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 12,933 -9,373 -42.02 3,785 -36.10 0.1136
2021-10-27 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 22,306 -14,867 -39.99 5,923 -41.08 0.1527
2021-07-27 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 37,173 4,581 14.06 10,052 29.02 0.2938
2021-05-06 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 32,592 -4,264 -11.57 7,791 -5.93 0.2793
2021-02-10 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 36,856 9,142 32.99 8,282 23.52 0.3793
2020-10-19 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 27,714 1,412 5.37 6,705 -1.38 0.3559
2020-07-22 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 26,302 1,043 4.13 6,799 23.64 0.4267
2020-05-07 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 25,259 20,801 466.60 5,499 437.01 0.4753
2020-02-10 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 4,458 1,531 52.31 1,024 58.27 0.0726
2019-11-14 2019-09-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 2,927 290 11.00 647 20.04 0.0361
2019-11-12 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,927 290 647 0.0361
2019-08-13 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,637 976 58.76 539 64.83 0.0758
2019-05-15 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,661 1,661 327 0.0559
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-10-19 2020-09-30 13F AMERICAN TOWER CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-07-22 2020-06-30 13F AMERICAN TOWER CORP COM Call 72,000 18,615 n/a n/a n/a
2019-08-12 2019-06-30 13F AMERICAN TOWER AMERICAN CLL OPT 7/19 195 Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F AMERICAN TOWER AMERICAN CLL OPT 7/19 195 Call 668 537 n/a n/a n/a
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.