American Tower Corporation
US ˙ NYSE ˙ US03027X1000

SecurityAMT / American Tower Corporation
InstitutionFmr Llc
Latest Disclosed Ownership17,033,900 shares
Ownership 4.32%
Fmr Llc ownership in AMT / American Tower Corporation

2014-02-14 - Fmr Llc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 17,033,900 shares of American Tower Corporation (US:AMT). This represents 4.316 percent ownership of the company.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2014-02-14 2014-02-14 13G/A 17,033,900 4.32
2013-02-14 2013-02-14 13G 25,747,259 6.51

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-15 2026-03-31 13F AMERICAN TOWER COM 03027X100 11,317,048 -701,791 -5.84 1,953,096 -7.44 0.0204
2026-02-17 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 12,018,839 -228,694 -1.87 2,110,148 -10.41 0.1076
2025-11-13 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 12,247,533 -1,342,127 -9.88 2,355,446 -21.58 0.1225
2025-08-14 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 13,589,660 943,107 7.46 3,003,587 9.15 0.1694
2025-05-12 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 12,646,553 1,467,284 13.13 2,751,890 34.21 0.1757
2025-02-13 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 11,179,269 537,136 5.05 2,050,390 -17.15 0.1224
2024-11-13 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 10,642,133 2,152,646 25.36 2,474,934 49.98 0.1506
2024-08-13 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 8,489,487 461,292 5.75 1,650,186 4.03 0.1056
2024-05-13 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 8,028,195 857,822 11.96 1,586,291 2.48 0.1065
2024-02-13 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 7,170,373 541,937 8.18 1,547,940 42.01 0.1189
2023-11-13 2023-09-30 13F AMERICAN TOWER CORP COM 03027X100 6,628,436 138,303 2.13 1,090,046 -13.40 0.0942
2023-08-11 2023-06-30 13F AMERICAN TOWER CORP COM 03027X100 6,490,133 140,313 2.21 1,258,696 -2.99 0.1055
2023-08-11 2023-03-31 13F/A-1 AMERICAN TOWER CORP COM 03027X100 6,349,820 -2,372,114 -27.20 1,297,522 -29.78 0.1187
2023-05-11 2023-03-31 13F AMERICAN TOWER CORP COM 03027X100 6,349,820 -2,372,114 1,297,522 0.1187
2023-02-13 2022-12-31 13F AMERICAN TOWER CORP COM 03027X100 8,721,934 -564,661 -6.08 1,847,829 -7.32 0.1835
2022-11-10 2022-09-30 13F AMERICAN TOWER CORP COM 03027X100 9,286,595 -42,493 -0.46 1,993,831 -16.38 0.2079
2022-08-12 2022-06-30 13F AMERICAN TOWER CORP COM 03027X100 9,329,088 1,762,240 23.29 2,384,422 25.43 0.2376
2022-05-13 2022-03-31 13F AMERICAN TOWER CORP COM 03027X100 7,566,848 -954,282 -11.20 1,900,944 -23.73 0.1519
2022-02-14 2021-12-31 13F AMERICAN TOWER CORP COM 03027X100 8,521,130 -2,500,820 -22.69 2,492,429 -14.80 0.1840
2022-02-14 2021-09-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 11,021,950 1,446,475 15.11 2,925,336 13.09 0.2320
2021-11-15 2021-09-30 13F AMERICAN TOWER CORP COM 03027X100 11,021,950 1,446,475 2,925,336 0.2320
2021-08-13 2021-06-30 13F AMERICAN TOWER CORP COM 03027X100 9,575,475 -343,868 -3.47 2,586,720 9.08 0.2027
2021-05-14 2021-03-31 13F AMERICAN TOWER CORP COM 03027X100 9,919,343 92,070 0.94 2,371,319 7.50 0.2025
2021-02-08 2020-12-31 13F AMERICAN TOWER CORP COM 03027X100 9,827,273 -4,155,810 -29.72 2,205,830 -34.74 0.1963
2020-11-13 2020-09-30 13F AMERICAN TOWER CORP COM 03027X100 13,983,083 -956,175 -6.40 3,380,131 -12.49 0.3417
2020-08-24 2020-06-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 14,939,258 -1,729,833 -10.38 3,862,396 6.41 0.4247
2020-08-13 2020-06-30 13F AMERICAN TOWER CORP COM 03027X100 14,939,258 -1,729,833 3,862,396 94,887.7669
2020-05-14 2020-03-31 13F AMERICAN TOWER CORP COM 03027X100 16,669,091 -1,813,855 -9.81 3,629,695 -14.55 0.5026
2020-02-07 2019-12-31 13F AMERICAN TOWER CORP COM 03027X100 18,482,946 -880,917 -4.55 4,247,751 -0.80 0.4686
2019-11-13 2019-09-30 13F AMERICAN TOWER CORP COM 03027X100 19,363,863 -2,175,154 -10.10 4,281,932 -2.76 0.5136
2019-08-13 2019-06-30 13F AMERICAN TOWER CORP COM 03027X100 21,539,017 -1,279,487 -5.61 4,403,653 -2.07 0.5143
2019-05-13 2019-03-31 13F AMERICAN TOWER CORP COM 03027X100 22,818,504 2,673,794 13.27 4,496,615 41.11 0.5387
2019-02-13 2018-12-31 13F AMERICAN TOWER CORP COM 03027X100 20,144,710 4,949,323 32.57 3,186,692 44.33 0.4365
2018-11-09 2018-09-30 13F AMERICAN TOWER CORP COM 03027X100 15,195,387 951,620 6.68 2,207,889 7.52 0.2484
2018-08-10 2018-06-30 13F AMERICAN TOWER CORP COM 03027X100 14,243,767 -1,316,744 -8.46 2,053,524 -9.20 0.2425
2018-05-14 2018-03-31 13F AMERICAN TOWER CORP COM 03027X100 15,560,511 153,089 0.99 2,261,565 2.88 0.2685
2018-02-12 2017-12-31 13F AMERICAN TOWER CORP COM 03027X100 15,407,422 -873,591 -5.37 2,198,177 -1.22 0.2577
2017-11-13 2017-09-30 13F AMERICAN TOWER CORP COM 03027X100 16,281,013 -585,542 -3.47 2,225,289 -0.29 0.2690
2017-08-29 2017-06-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 16,866,555 -864,088 -4.87 2,231,783 3.56 0.2774
2017-08-11 2017-06-30 13F AMERICAN TOWER CORP COM 03027X100 16,866,555 -864,088 2,231,783
2017-05-11 2017-03-31 13F AMERICAN TOWER CORP COM 03027X100 17,730,643 -1,994,371 -10.11 2,154,982 3.38 0.2738
2017-02-10 2016-12-31 13F AMERICAN TOWER CORP COM 03027X100 19,725,014 -1,834,966 -8.51 2,084,539 -14.69 0.2786
2016-11-14 2016-09-30 13F AMERICAN TOWER CORP COM 03027X100 21,559,980 -191,480 -0.88 2,443,393 -1.12 0.3254
2016-08-11 2016-06-30 13F AMERICAN TOWER CORP COM 03027X100 21,751,460 4,654,269 27.22 2,471,184 41.19 0.3373
2016-05-16 2016-03-31 13F AMERICAN TOWER CORP COM 03027X100 17,097,191 1,611,776 10.41 1,750,240 16.58 0.2421
2016-02-12 2015-12-31 13F AMERICAN TOWER CORP COM 03027X100 15,485,415 -159,620 -1.02 1,501,311 9.07 0.2020
2015-11-10 2015-09-30 13F AMERICAN TOWER CORP COM 03027X100 15,645,035 1,777,679 12.82 1,376,449 6.40 0.1959
2015-08-25 2015-06-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 13,867,356 -2,883,731 -17.22 1,293,685 -17.97 0.1658
2015-08-13 2015-06-30 13F AMERICAN TOWER CORP COM 03027X100 13,867,356 1,293,685
2015-05-14 2015-03-31 13F AMERICAN TOWER CORP COM 03027X100 16,751,087 3,821,463 29.56 1,577,115 23.40 0.2009
2015-02-17 2014-12-31 13F AMERICAN TOWER CORP COM 03027X100 12,929,624 200,893 1.58 1,278,094 7.24 0.1663
2014-11-14 2014-09-30 13F AMERICAN TOWER CORP COM 03027X100 12,728,731 793,760 6.65 1,191,790 10.98 0.1614
2014-08-14 2014-06-30 13F AMERICAN TOWER CORP COM 03027X100 11,934,971 -430,626 -3.48 1,073,910 6.08 0.1439
2014-05-15 2014-03-31 13F AMERICAN TOWER CORP COM 03027X100 12,365,597 -4,544,640 -26.88 1,012,372 -25.00 0.1406
2014-02-13 2013-12-31 13F AMERICAN TOWER CORP COM 03027X100 16,910,237 -2,989,578 -15.02 1,349,776 -8.50 0.1907
2013-11-14 2013-09-30 13F AMERICAN TOWER CORP COM 03027X100 19,899,815 -3,809,150 -16.07 1,475,173 -14.97 0.2260
2013-09-24 2013-06-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 23,708,965 23,708,965 1,734,785 0.2840
2013-08-14 2013-06-30 13F AMERICAN TOWER CORP COM 03027X100 23,708,965 1,734,785 0.2840
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.