American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionNinepoint Partners LP
Latest Disclosed Ownership10,295 shares
Latest Disclosed Value $ 1,807,493
Ninepoint Partners LP reports 15.71% decrease in ownership of AMT / American Tower Corporation

On February 17, 2026 - Ninepoint Partners LP filed a 13F-HR form disclosing ownership of 10,295 shares of American Tower Corporation (US:AMT) valued at $1,807,493 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 12, 2025 disclosing 12,214 shares of American Tower Corporation. This represents a change in shares of -15.71% during the quarter. The current value of the position is $1,996,303 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)
2026-02-17 2025-12-31 13F AMERICAN TOWER COM 03027X100 10,295 -1,919 -15.71 1,807 -23.04 0.1999
2025-11-12 2025-09-30 13F AMERICAN TOWER COM 03027X100 12,214 472 4.02 2,349 -9.52 0.3096
2025-08-05 2025-06-30 13F AMERICAN TOWER COM 03027X100 11,742 0 0.00 2,595 1.57 0.4273
2025-05-06 2025-03-31 13F AMERICAN TOWER COM 03027X100 11,742 2,018 20.75 2,555 43.30 0.4247
2025-02-10 2024-12-31 13F AMERICAN TOWER COM 03027X100 9,724 612 6.72 1,783 -15.86 0.2590
2024-11-07 2024-09-30 13F AMERICAN TOWER COM 03027X100 9,112 0 0.00 2,119 19.65 0.2297
2024-08-15 2024-06-30 13F AMERICAN TOWER COM 03027X100 9,112 0 0.00 1,771 -1.61 0.1683
2024-05-13 2024-03-31 13F AMERICAN TOWER COM 03027X100 9,112 -625 -6.42 1,800 -14.37 0.1907
2024-01-31 2023-12-31 13F AMERICAN TOWER COM 03027X100 9,737 -5 -0.05 2,102 31.21 0.2248
2023-10-31 2023-09-30 13F AMERICAN TOWER COM 03027X100 9,742 196 2.05 1,602 -13.45 0.1534
2023-08-01 2023-06-30 13F AMERICAN TOWER COM 03027X100 9,546 -205 -2.10 1,851 -7.08 0.2012
2023-05-04 2023-03-31 13F AMERICAN TOWER COM 03027X100 9,751 3,094 46.48 1,993 199,100.00 0.2212
2023-02-01 2022-12-31 13F AMERICAN TOWER COM 03027X100 6,657 275 4.31 1 -99.93 0.1800
2022-11-21 2022-09-30 13F/A-1 AMERICAN TOWER COM 03027X100 6,382 0 0.00 1,370 -16.00 0.1708
2022-11-10 2022-09-30 13F AMERICAN TOWER COM 03027X100 6,382 0 1,370 0.1708
2022-07-26 2022-06-30 13F AMERICAN TOWER COM 03027X100 6,382 1,864 41.26 1,631 43.70 0.2335
2022-05-09 2022-03-31 13F AMERICAN TOWER COM 03027X100 4,518 -277 -5.78 1,135 -19.10 0.2402
2022-02-07 2021-12-31 13F AMERICAN TOWER COM 03027X100 4,795 589 14.00 1,403 25.72 0.4108
2021-11-02 2021-09-30 13F AMERICAN TOWER COM 03027X100 4,206 0 0.00 1,116 -1.76 0.2990
2021-08-09 2021-06-30 13F AMERICAN TOWER COM 03027X100 4,206 271 6.89 1,136 20.72 0.2749
2021-05-07 2021-03-31 13F AMERICAN TOWER COM 03027X100 3,935 1,593 68.02 941 78.90 0.3739
2021-01-28 2020-12-31 13F AMERICAN TOWER COM 03027X100 2,342 -595 -20.26 526 -25.92 0.2044
2020-10-15 2020-09-30 13F AMERICAN TOWER COM 03027X100 2,937 -533 -15.36 710 -20.85 0.3093
2020-07-30 2020-06-30 13F AMERICAN TOWER COM 03027X100 3,470 -1,314 -27.47 897 -13.92 0.3598
2020-04-28 2020-03-31 13F AMERICAN TOWER COM 03027X100 4,784 1,460 43.92 1,042 36.39 1.0304
2020-01-24 2019-12-31 13F AMERICAN TOWER COM 03027X100 3,324 -575 -14.75 764 -11.37 0.2497
2019-10-30 2019-09-30 13F AMERICAN TOWER COM 03027X100 3,899 -1,490 -27.65 862 -21.78 0.3309
2019-08-09 2019-06-30 13F AMERICAN TOWER COM 03027X100 5,389 -2,534 -31.98 1,102 -29.40 0.2033
2019-05-07 2019-03-31 13F AMERICAN TOWER COM 03027X100 7,923 3,077 63.50 1,561 103.52 0.2920
2019-01-28 2018-12-31 13F AMERICAN TOWER COM 03027X100 4,846 606 14.29 767 24.51 0.2099
2018-10-29 2018-09-30 13F AMERICAN TOWER COM 03027X100 4,240 -515 -10.83 616 -10.20 0.1070
2018-08-13 2018-06-30 13F AMERICAN TOWER COM 03027X100 4,755 -670 -12.35 686 -12.94 0.0694
2018-05-10 2018-03-31 13F AMERICAN TOWER COM 03027X100 5,425 0 0.00 788 1.81 0.0585
2018-02-12 2017-12-31 13F AMERICAN TOWER COM 03027X100 5,425 -800 -12.85 774 -9.05 0.0585
2017-11-07 2017-09-30 13F AMERICAN TOWER COM 03027X100 6,225 6,225 851 0.0598
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.