American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionCitizens & Northern Corp
Latest Disclosed Ownership8,773 shares
Latest Disclosed Value $ 1,514,044
Citizens & Northern Corp reports 3.18% decrease in ownership of AMT / American Tower Corporation

On April 27, 2026 - Citizens & Northern Corp filed a 13F-HR form disclosing ownership of 8,773 shares of American Tower Corporation (MX:AMT) valued at $1,514,044 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 9,061 shares of American Tower Corporation. This represents a change in shares of -3.18% during the quarter.

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)
2026-04-27 2026-03-31 13F American Tower REIT COM 03027X100 8,773 -288 -3.18 1,514 -4.78 0.3776
2026-01-28 2025-12-31 13F American Tower REIT COM 03027X100 9,061 -291 -3.11 1,591 -11.57 0.3942
2025-10-24 2025-09-30 13F American Tower REIT COM 03027X100 9,352 50 0.54 1,799 -12.51 0.4457
2025-07-30 2025-06-30 13F American Tower REIT COM 03027X100 9,302 178 1.95 2,056 3.53 0.5502
2025-04-21 2025-03-31 13F American Tower REIT COM 03027X100 9,124 -285 -3.03 1,985 15.07 0.5598
2025-01-31 2024-12-31 13F American Tower REIT COM 03027X100 9,409 84 0.90 1,726 -20.43 0.4727
2024-11-04 2024-09-30 13F American Tower REIT COM 03027X100 9,325 749 8.73 2,169 30.05 0.6511
2024-07-30 2024-06-30 13F American Tower REIT COM 03027X100 8,576 -325 -3.65 1,667 -5.18 0.5214
2024-05-13 2024-03-31 13F American Tower REIT COM 03027X100 8,901 -172 -1.90 1,759 -10.21 0.5947
2024-02-09 2023-12-31 13F American Tower REIT COM 03027X100 9,073 -432 -4.54 1,959 25.27 0.6992
2023-11-13 2023-09-30 13F American Tower REIT COM 03027X100 9,505 -330 -3.36 1,563 -18.04 0.6277
2023-08-11 2023-06-30 13F American Tower REIT COM 03027X100 9,835 -155 -1.55 1,907 -6.57 0.7208
2023-05-05 2023-03-31 13F American Tower REIT COM 03027X100 9,990 28 0.28 2,041 -3.27 0.7964
2023-02-14 2022-12-31 13F American Tower REIT COM 03027X100 9,962 363 3.78 2,111 2.38 0.8718
2022-11-09 2022-09-30 13F American Tower REIT COM 03027X100 9,599 25 0.26 2,061 -15.77 0.9657
2022-08-04 2022-06-30 13F American Tower REIT COM 03027X100 9,574 -217 -2.22 2,447 -0.53 1.0663
2022-05-12 2022-03-31 13F American Tower REIT COM 03027X100 9,791 -497 -4.83 2,460 -18.25 0.9090
2022-01-24 2021-12-31 13F American Tower REIT COM 03027X100 10,288 -294 -2.78 3,009 7.12 1.0787
2021-11-04 2021-09-30 13F American Tower REIT COM 03027X100 10,582 -214 -1.98 2,809 -3.67 1.0779
2021-08-02 2021-06-30 13F American Tower REIT COM 03027X100 10,796 -804 -6.93 2,916 5.16 1.0936
2021-05-11 2021-03-31 13F American Tower REIT COM 03027X100 11,600 272 2.40 2,773 9.04 1.0974
2021-02-09 2020-12-31 13F American Tower REIT COM 03027X100 11,328 27 0.24 2,543 -6.92 1.1194
2020-11-13 2020-09-30 13F American Tower REIT COM 03027X100 11,301 -366 -3.14 2,732 -9.42 1.4545
2020-08-07 2020-06-30 13F American Tower REIT COM 03027X100 11,667 -552 -4.52 3,016 13.34 1.4730
2020-05-08 2020-03-31 13F American Tower REIT COM 03027X100 12,219 83 0.68 2,661 -4.59 1.6741
2020-02-11 2019-12-31 13F American Tower REIT COM 03027X100 12,136 -463 -3.67 2,789 0.11 1.3957
2019-11-12 2019-09-30 13F American Tower REIT COM 03027X100 12,599 -511 -3.90 2,786 3.96 1.5203
2019-08-14 2019-06-30 13F American Tower REIT COM 03027X100 13,110 -308 -2.30 2,680 1.36 1.4898
2019-05-13 2019-03-31 13F American Tower REIT COM 03027X100 13,418 313 2.39 2,644 27.54 1.4748
2019-02-14 2018-12-31 13F American Tower REIT COM 03027X100 13,105 -111 -0.84 2,073 7.97 1.4459
2018-11-14 2018-09-30 13F American Tower REIT COM 03027X100 13,216 -414 -3.04 1,920 -2.29 1.3054
2018-08-03 2018-06-30 13F American Tower REIT COM 03027X100 13,630 123 0.91 1,965 0.10 1.3964
2018-05-14 2018-03-31 13F American Tower REIT COM 03027X100 13,507 141 1.05 1,963 2.94 1.4596
2018-02-13 2017-12-31 13F American Tower REIT COM 03027X100 13,366 -461 -3.33 1,907 0.90 1.3562
2017-11-13 2017-09-30 13F American Tower REIT COM 03027X100 13,827 76 0.55 1,890 3.85 1.4390
2017-08-11 2017-06-30 13F American Tower REIT COM 03027X100 13,751 -19 -0.14 1,820 8.72 1.4316
2017-05-11 2017-03-31 13F American Tower REIT COM 03027X100 13,770 743 5.70 1,674 21.57 1.3496
2017-02-13 2016-12-31 13F American Tower REIT COM 03027X100 13,027 284 2.23 1,377 -4.64 1.0407
2016-11-10 2016-09-30 13F American Tower REIT COM 03027X100 12,743 24 0.19 1,444 -0.07 1.1318
2016-08-10 2016-06-30 13F American Tower REIT COM 03027X100 12,719 183 1.46 1,445 12.63 1.1276
2016-05-13 2016-03-31 13F American Tower REIT COM 03027X100 12,536 2,786 28.57 1,283 35.77 1.0126
2016-02-16 2015-12-31 13F American Tower REIT COM 03027X100 9,750 -134 -1.36 945 8.62 0.7706
2015-11-13 2015-09-30 13F American Tower REIT COM 03027X100 9,884 391 4.12 870 -1.81 0.6801
2015-08-13 2015-06-30 13F American Tower REIT COM 03027X100 9,493 155 1.66 886 0.80 0.6861
2015-05-15 2015-03-31 13F American Tower REIT COM 03027X100 9,338 1,045 12.60 879 7.20 0.6657
2015-02-12 2014-12-31 13F American Tower REIT COM 03027X100 8,293 8,293 820 0.6194
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.