American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionSWS Partners
Latest Disclosed Ownership9,810 shares
Latest Disclosed Value $ 1,692,969
SWS Partners reports 2.94% increase in ownership of AMT / American Tower Corporation

On April 21, 2026 - SWS Partners filed a 13F-HR form disclosing ownership of 9,810 shares of American Tower Corporation (US:AMT) valued at $1,693,010 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 9,530 shares of American Tower Corporation. This represents a change in shares of 2.94% during the quarter. The current value of the position is $1,902,257 USD.

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)
2026-04-21 2026-03-31 13F AMERICAN TOWER COM 03027X100 9,810 280 2.94 1,693 0.18 0.4176
2026-01-16 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 9,530 -77,250 -89.02 1,689 0.30 0.4078
2025-10-16 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 86,780 78,688 972.42 1,684 -6.60 0.4110
2025-07-17 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 8,092 -981 -10.81 1,804 -8.66 0.4868
2025-05-27 2025-03-31 13F/A-1 AMERICAN TOWER CORP COM 03027X100 9,073 -40 -0.44 1,974 17.15 0.6480
2025-05-19 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 9,112 -1 1,686 0.5105
2025-02-06 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 9,113 1,162 14.61 1,686 -8.82 0.5105
2024-10-15 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 7,951 -2,612 -24.73 1,849 -10.03 0.5890
2024-07-17 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 10,563 -513 -4.63 2,054 -6.12 0.6141
2024-04-30 2024-03-31 13F American Tower Corp REIT AMT-US 03027X100 11,076 297 2.76 2,189 -5.97 0.6544
2024-02-13 2023-12-31 13F American Tower Corp REIT AMT-US 03027X100 10,779 -414 -3.70 2,327 26.47 0.7585
2023-11-09 2023-09-30 13F American Tower Corp REIT AMT-US 03027X100 11,193 1,018 10.00 1,841 -7.35 0.6805
2023-08-17 2023-06-30 13F/A-2 American Tower Corp REIT COM 03027X100 10,175 1,385 15.76 1,986 10.58 0.7164
2023-08-10 2023-06-30 13F/A-1 Tapestry COM 03027X100 75,242 66,452 3,221 1.2187
2023-07-26 2023-06-30 13F American Tower Corp REIT COM 03027X100 10,175 1,385 1,986 0.7126
2023-05-09 2023-03-31 13F American Tower Corp REIT COM 03027X100 8,790 8,790 1,796 0.6686
2022-05-05 2022-03-31 13F American Tower Corp REIT COM 03027X100 0 -6,480 -100.00 0 -100.00
2022-01-25 2021-12-31 13F American Tower Corp REIT COM 03027X100 6,480 874 15.59 1,895 27.35 1.0776
2021-11-08 2021-09-30 13F American Tower Corp REIT COM 03027X100 5,606 -69 -1.22 1,488 -2.94 0.9219
2021-08-09 2021-06-30 13F American Tower Corp REIT COM 03027X100 5,675 -213 -3.62 1,533 8.88 0.9977
2021-05-17 2021-03-31 13F American Tower Corp REIT COM 03027X100 5,888 344 6.20 1,408 13.18 0.9690
2021-03-31 2020-12-31 13F American Tower Corp REIT COM 03027X100 5,544 5,544 -5.84 1,244 -11.65 0.5543
2018-08-13 2018-06-30 13F AMERICAN TOWER CORP REIT COM 03027X100 0 -268 -100.00 0 -100.00
2018-05-15 2018-03-31 13F AMERICAN TOWER CORP REIT COM 03027X100 268 0 0.00 39 2.63 0.0287
2018-02-15 2017-12-31 13F AMERICAN TOWER CORP REIT COM 03027X100 268 268 38 0.0286
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.