아메리칸 타워 코퍼레이션
IT ˙ BIT ˙ US03027X1000
€159.75 0.00 (0.00%)
2026-06-04
주가
SecurityIT:1AMT / American Tower Corporation
InstitutionTranquility Partners, LLC
Latest Disclosed Ownership1,203 shares
Latest Disclosed Value $ 207,545
Tranquility Partners, LLC reports 1.09% increase in ownership of 1AMT / American Tower Corporation

On April 20, 2026 - Tranquility Partners, LLC filed a 13F-HR form disclosing ownership of 1,203 shares of American Tower Corporation (IT:1AMT) valued at $174,074 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 1,190 shares of American Tower Corporation. This represents a change in shares of 1.09% during the quarter. The current value of the position is $192,179 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)
2026-04-20 2026-03-31 13F AMERICAN TOWER COM 03027X100 1,203 13 1.09 208 -0.48 0.0783
2026-02-03 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,190 -1,142 -48.97 209 -53.57 0.0753
2025-10-30 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,332 -3,479 -59.87 449 -65.11 0.1514
2025-07-25 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 5,811 -220 -3.65 1,284 -2.13 0.4587
2025-04-24 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 6,031 -63 -1.03 1,312 17.46 0.5068
2025-01-29 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 6,094 -498 -7.55 1,118 -27.14 0.4203
2024-11-07 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 6,592 428 6.94 1,533 27.96 0.5559
2024-07-25 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 6,164 -493 -7.41 1,198 -8.90 0.4610
2024-05-07 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 6,657 4,568 218.67 1,315 192.22 0.5084
2024-01-31 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,089 -3,188 -60.41 451 -48.10 0.1891
2023-10-31 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 5,277 -1,637 -23.68 868 -35.30 0.3720
2023-07-17 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 6,914 159 2.35 1,341 -2.90 0.5776
2023-05-08 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 6,755 789 13.22 1,380 9.26 0.6576
2023-02-02 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 5,966 -172 -2.80 1,264 -4.17 0.6429
2022-11-01 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 6,138 37 0.61 1,318 -15.46 0.7334
2022-08-01 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 6,101 -65 -1.05 1,559 0.65 0.8065
2022-04-29 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 6,166 744 13.72 1,549 -2.33 0.7253
2022-01-31 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 5,422 232 4.47 1,586 15.09 0.7340
2021-10-20 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 5,190 245 4.95 1,378 3.14 0.6993
2021-07-23 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 4,945 826 20.05 1,336 35.63 0.7506
2021-04-30 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 4,119 -212 -4.89 985 1.34 0.6126
2021-01-29 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 4,331 1,681 63.43 972 51.64 0.6867
2020-11-10 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,650 40 1.53 641 -5.04 0.5446
2020-07-29 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,610 0 0.00 675 18.84 0.6356
2020-04-20 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 2,610 810 45.00 568 37.20 0.6537
2020-02-03 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,800 0 0.00 414 4.02 0.3738
2019-11-14 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,800 0 0.00 398 8.15 0.4218
2019-08-13 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,800 1,800 368 0.3967
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.