아메리칸 타워 코퍼레이션
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionCypress Wealth Services, LLC
Latest Disclosed Ownership2,886 shares
Latest Disclosed Value $ 498,103
Cypress Wealth Services, LLC ownership in AMT / American Tower Corporation

On April 15, 2026 - Cypress Wealth Services, LLC filed a 13F-HR form disclosing ownership of 2,886 shares of American Tower Corporation (MX:AMT) valued at $498,103 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 2,132 shares of American Tower Corporation. This represents a change in shares of 35.37% during the quarter.

Cypress Wealth Services, LLC has a history of taking positions in derivatives of the underlying security (AMT) in the form of stock options.

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)
2026-04-15 2026-03-31 13F AMERICAN TOWER COM 03027X100 2,886 754 35.37 498 33.16 0.0703
2026-01-14 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,132 -437 -17.01 374 -24.29 0.0518
2025-10-15 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,569 -115 -4.28 494 -16.69 0.0809
2025-07-28 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,684 49 1.86 593 3.49 0.1062
2025-04-10 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 2,635 19 0.73 573 19.62 0.1163
2025-01-15 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,616 45 1.75 480 -19.77 0.0964
2024-10-09 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,571 39 1.54 598 21.34 0.1236
2024-07-12 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,532 818 47.72 492 45.56 0.1096
2024-04-16 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,714 1,714 339 0.0789
2022-04-21 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 0 -762 -100.00 0 -100.00
2022-01-19 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 762 0 0.00 223 10.40 0.0610
2021-10-13 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 762 -73 -8.74 202 -10.22 0.0605
2021-07-14 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 835 -486 -36.79 225 -28.80 0.0615
2021-04-28 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,321 200 17.84 316 25.40 0.0661
2021-01-22 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,121 1,121 -15.14 252 -20.25 0.0563
2020-10-23 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 0 -1,135 -100.00 0 -100.00
2020-07-15 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,135 -17 -1.48 293 16.73 0.0697
2020-04-28 2020-03-31 13F/A-1 AMERICAN TOWER CORP COM 03027X100 1,152 -18 -1.54 251 -6.69 0.0739
2020-04-10 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,152 -18 251 74,288.9277
2020-01-14 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,170 -210 -15.22 269 -11.80 0.0679
2019-10-16 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,380 -156 -10.16 305 -2.87 0.0837
2019-07-24 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,536 -3 -0.19 314 3.63 0.0906
2019-04-19 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,539 -62 -3.87 303 19.76 0.0959
2019-01-22 2018-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,601 -289 -15.29 253 -8.00 0.1003
2018-10-19 2018-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,890 -18 -0.94 275 0.00 0.0984
2018-08-06 2018-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,908 1,908 0.95 275 0.00 0.1045
2018-05-01 2018-03-31 13F AMERICAN TOWER CORP COM 03027X100 0 -1,431 -100.00 0 -100.00
2018-02-05 2017-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,431 1,431 204 0.0847
Disclosed Put 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
(%)
2021-01-22 2020-12-31 13F AMERICAN TOWER CORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-10-23 2020-09-30 13F AMERICAN TOWER CORP COM Put 1,106 267 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.