American Tower Corporation
IT ˙ BIT ˙ US03027X1000
159,75 € 0,00 (0,00%)
2026-06-04
CENA AKCJI
SecurityIT:1AMT / American Tower Corporation
InstitutionOptas, LLC
Latest Disclosed Ownership1,733 shares
Latest Disclosed Value $ 299,082
Optas, LLC reports 4.15% increase in ownership of 1AMT / American Tower Corporation

On April 24, 2026 - Optas, LLC filed a 13F-HR form disclosing ownership of 1,733 shares of American Tower Corporation (IT:1AMT) valued at $250,765 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 1,664 shares of American Tower Corporation. This represents a change in shares of 4.15% during the quarter. The current value of the position is $276,847 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)
2026-04-24 2026-03-31 13F AMERICAN TOWER COM 03027X100 1,733 69 4.15 299 2.40 0.0262
2026-01-27 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,664 -684 -29.13 292 -35.25 0.0457
2025-10-15 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,348 -16 -0.68 452 -13.60 0.0766
2025-07-23 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,364 -190 -7.44 522 -5.95 0.0993
2025-04-17 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 2,554 642 33.58 556 58.57 0.0967
2025-01-24 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,912 -381 -16.62 351 -34.33 0.0756
2024-10-29 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,293 250 12.24 533 34.26 0.1227
2024-07-25 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 2,043 -10 -0.49 397 -1.98 0.1023
2024-04-18 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 2,053 -12 -0.58 406 -8.99 0.1107
2024-01-26 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 2,065 348 20.27 446 57.80 0.1341
2023-10-31 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,717 -36 -2.05 282 -16.81 0.0941
2023-07-20 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,753 229 15.03 340 9.00 0.1137
2023-04-18 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,524 -237 -13.46 312 -16.62 0.1112
2023-01-30 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,761 96 5.77 373 3.90 0.1539
2022-11-01 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,665 -53 -3.08 359 -18.22 0.1575
2022-08-01 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,718 41 2.44 439 4.03 0.1797
2022-04-26 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,677 18 1.08 422 -13.17 0.1380
2022-01-26 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,659 9 0.55 486 10.96 0.1376
2021-10-14 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,650 131 8.62 438 6.57 0.1273
2021-07-27 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,519 17 1.13 411 14.48 0.1173
2021-04-19 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,502 -168 -10.06 359 -4.27 0.1126
2021-01-27 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,670 -567 -25.35 375 -30.68 0.1205
2020-10-23 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 2,237 361 19.24 541 11.55 0.1653
2020-07-31 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,876 380 25.40 485 48.77 0.1965
2020-04-14 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,496 19 1.29 326 -3.55 0.1624
2020-02-14 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,477 1,477 338 0.1305
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.