American Tower Corporation
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership188,486 shares
Latest Disclosed Value $ 32,529
Natixis Advisors, L.p. reports 4.32% decrease in ownership of AMT / American Tower Corporation

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 188,486 shares of American Tower Corporation (MX:AMT) valued at $32,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 196,986 shares of American Tower Corporation. This represents a change in shares of -4.32% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F AMERICAN TOWER COM 03027X100 188,486 -8,500 -4.32 33 -5.88 0.0452
2026-02-10 2025-12-31 13F AMERICAN TOWER COM 03027X100 196,986 -18,482 -8.58 35 -17.07 0.0490
2025-11-13 2025-09-30 13F AMERICAN TOWER COM 03027X100 215,468 -83,770 -27.99 41 -37.88 0.0605
2025-08-13 2025-06-30 13F AMERICAN TOWER COR COM 03027X100 299,238 72,654 32.06 66 34.69 0.1049
2025-05-08 2025-03-31 13F AMERICAN TOWER CORP NEW COM COM 03027X100 226,584 70,045 44.75 49 75.00 0.0911
2025-02-10 2024-12-31 13F AMERICAN TOWER COM 03027X100 156,539 -21,408 -12.03 29 -31.71 0.0536
2024-11-06 2024-09-30 13F AMERICAN TOWER COM 03027X100 177,947 30,499 20.68 41 46.43 0.0807
2024-08-01 2024-06-30 13F AMERICAN TOWER COM 03027X100 147,448 28,277 23.73 29 21.74 0.0623
2024-04-25 2024-03-31 13F AMERICAN TOWER COM 03027X100 119,171 114 0.10 24 -8.00 0.0541
2024-02-06 2023-12-31 13F AMERICAN TOWER COM 03027X100 119,057 34,238 40.37 26 92.31 0.0677
2023-11-13 2023-09-30 13F AMERICAN TOWER COR COM 03027X100 84,819 -12,113 -12.50 14 -27.78 0.0427
2023-08-15 2023-06-30 13F AMERICAN TOWER COM 03027X100 96,932 3,132 3.34 19 -5.26 0.0580
2023-05-11 2023-03-31 13F AMERICAN TOWER COM 03027X100 93,800 -5,171 -5.22 19 -5.00 0.0660
2023-01-27 2022-12-31 13F AMERICAN TOWER COM 03027X100 98,971 -36,482 -26.93 21 -99.93 0.0793
2022-11-14 2022-09-30 13F AMERICAN TOWER COM 03027X100 135,453 -4,758 -3.39 29,082 -18.85 0.1230
2022-08-12 2022-06-30 13F AMERICAN TOWER COM 03027X100 140,211 48,422 52.75 35,836 55.41 0.1576
2022-05-12 2022-03-31 13F AMERICAN TOWER COM 03027X100 91,789 -26,369 -22.32 23,059 -33.28 0.0879
2022-02-08 2021-12-31 13F AMERICAN TOWER COM 03027X100 118,158 8,937 8.18 34,561 19.23 0.1320
2021-11-15 2021-09-30 13F AMERICAN TOWER COM 03027X100 109,221 -2,103 -1.89 28,988 -3.61 0.1192
2021-08-12 2021-06-30 13F AMERICAN TOWER COM 03027X100 111,324 13,697 14.03 30,073 28.86 0.1404
2021-05-05 2021-03-31 13F AMERICAN TOWER COM 03027X100 97,627 8,759 9.86 23,338 17.00 0.1218
2021-02-12 2020-12-31 13F AMERICAN TOWER COM 03027X100 88,868 -1,618 -1.79 19,947 -8.81 0.1149
2020-11-12 2020-09-30 13F AMERICAN TOWER COM 03027X100 90,486 -14,487 -13.80 21,873 -19.41 0.1376
2020-08-11 2020-06-30 13F AMERICAN TOWER COM 03027X100 104,973 16,336 18.43 27,140 40.61 0.1801
2020-04-27 2020-03-31 13F AMERICAN TOWER COM 03027X100 88,637 7,441 9.16 19,301 3.44 0.1573
2020-02-10 2019-12-31 13F AMERICAN TOWER COM 03027X100 81,196 6,284 8.39 18,660 12.65 0.1316
2019-11-12 2019-09-30 13F AMERICAN TOWER COM 03027X100 74,912 1,890 2.59 16,565 10.96 0.1315
2019-08-12 2019-06-30 13F AMERICAN TOWER COM 03027X100 73,022 3,948 5.72 14,929 9.68 0.1219
2019-05-15 2019-03-31 13F/A-1 AMERICAN TOWER COM 03027X100 69,074 1,665 2.47 13,612 27.66 0.1192
2019-05-15 2019-03-31 13F AMERICAN TOWER COM 03027X100 69,074 1,665 13,612
2019-02-13 2018-12-31 13F/A-1 AMERICAN TOWER COM 03027X100 67,409 795 1.19 10,663 10.17 0.1053
2019-02-13 2018-12-31 13F AMERICAN TOWER COM 03027X100 67,409 795 10,663
2018-11-13 2018-09-30 13F AMERICAN TOWER COM 03027X100 66,614 2,165 3.36 9,679 4.18 0.0852
2018-08-14 2018-06-30 13F/A-1 AMERICAN TOWER COM 03027X100 64,449 2,129 3.42 9,291 2.57 0.0888
2018-08-14 2018-06-30 13F AMERICAN TOWER COM 03027X100 64,449 9,291
2018-05-10 2018-03-31 13F AMERICAN TOWER COM 03027X100 62,320 4,698 8.15 9,058 10.18 0.0894
2018-02-14 2017-12-31 13F AMERICAN TOWER COM 03027X100 57,622 3 0.01 8,221 4.39 0.0837
2017-11-14 2017-09-30 13F AMERICAN TOWER CORP COM 03027X100 57,619 1,052 1.86 7,875 5.21 0.0832
2017-07-27 2017-06-30 13F AMERICAN TOWER COM 03027X100 56,567 -741 -1.29 7,485 7.47 0.0810
2017-05-12 2017-03-31 13F AMERICAN TOWER COM 03027X100 57,308 -6,435 -10.10 6,965 3.40 0.0772
2017-02-07 2016-12-31 13F AMERICAN TOWER COR COM 03027X100 63,743 13,690 27.35 6,736 18.74 0.0810
2016-11-04 2016-09-30 13F AMERICAN TOWER COM 03027X100 50,053 319 0.64 5,673 0.41 0.0735
2016-08-01 2016-06-30 13F AMERICAN TOWER COM NEW 03027X100 49,734 -1,934 -3.74 5,650 6.83 0.0781
2016-05-06 2016-03-31 13F AMERICAN TOWER NEW COM 03027X100 51,668 -8,858 -14.64 5,289 -9.87 0.0791
2016-02-12 2015-12-31 13F AMERICAN TOWER COR COM 03027X100 60,526 -5,581 -8.44 5,868 0.89 0.0962
2015-11-12 2015-09-30 13F AMERICAN TOWER COM 03027X100 66,107 -263 -0.40 5,816 -6.07 0.1009
2015-08-14 2015-06-30 13F AMERICAN TOWER COM 03027X100 66,370 -1,270 -1.88 6,192 -2.76 0.1051
2015-05-15 2015-03-31 13F AMERICAN TOWER COM 03027X100 67,640 -14,603 -17.76 6,368 -21.67 0.1118
2015-02-05 2014-12-31 13F AMERICAN TOWER COM 03027X100 82,243 -4,075 -4.72 8,130 0.59 0.1522
2014-11-03 2014-09-30 13F AMERICAN TOWER COM 03027X100 86,318 -18,891 -17.96 8,082 -14.62 0.1622
2014-08-13 2014-06-30 13F AMERICAN TOWER COM 03027X100 105,209 -792 -0.75 9,466 9.08 0.1356
2014-05-13 2014-03-31 13F AMERICAN TOWER COM 03027X100 106,001 -2,765 -2.54 8,678 -0.05 0.1336
2014-02-12 2013-12-31 13F AMERICAN TOWER COM 03027X100 108,766 -7,579 -6.51 8,682 0.67 0.1421
2013-10-30 2013-09-30 13F AMERICAN TOWER COM 03027X100 116,345 -15,547 -11.79 8,624 -10.63 0.1588
2013-07-19 2013-06-30 13F AMERICAN TOWER COM 03027X100 131,892 131,892 9,650 0.1923
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.