아메리칸 타워 코퍼레이션
MX ˙ BMV ˙ US03027X1000
SecurityMX:AMT / American Tower Corporation
InstitutionSimon Quick Advisors, Llc
Latest Disclosed Ownership17,025 shares
Latest Disclosed Value $ 2,938,175
Simon Quick Advisors, Llc reports 41.16% increase in ownership of AMT / American Tower Corporation

On May 6, 2026 - Simon Quick Advisors, Llc filed a 13F-HR form disclosing ownership of 17,025 shares of American Tower Corporation (MX:AMT) valued at $2,938,175 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 12,061 shares of American Tower Corporation. This represents a change in shares of 41.16% 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)
2026-05-06 2026-03-31 13F AMERICAN TOWER COM 03027X100 17,025 4,964 41.16 2,938 38.78 0.1344
2026-01-29 2025-12-31 13F AMERICAN TOWER CORP COM 03027X100 12,061 -1,054 -8.04 2,118 -16.06 0.0924
2025-10-21 2025-09-30 13F AMERICAN TOWER CORP COM 03027X100 13,115 115 0.88 2,522 -12.22 0.1141
2025-10-08 2025-06-30 13F/A-1 AMERICAN TOWER CORP COM 03027X100 13,000 11,298 663.81 2,873 676.49 0.1454
2025-08-04 2025-06-30 13F AMERICAN TOWER CORP COM 03027X100 15,263 13,561 3,374 0.1358
2025-04-15 2025-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,702 248 17.06 370 39.10 0.0211
2025-01-17 2024-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,454 -370 -20.29 267 -37.26 0.0160
2024-10-15 2024-09-30 13F AMERICAN TOWER CORP COM 03027X100 1,824 479 35.61 424 62.45 0.0268
2024-08-02 2024-06-30 13F AMERICAN TOWER CORP COM 03027X100 1,345 169 14.37 261 12.50 0.0185
2024-04-19 2024-03-31 13F AMERICAN TOWER CORP COM 03027X100 1,176 -579 -32.99 232 -38.62 0.0174
2024-01-16 2023-12-31 13F AMERICAN TOWER CORP COM 03027X100 1,755 1,755 379 0.0335
2022-08-08 2022-06-30 13F American Tower COM 03027X100 0 -200 -100.00 0 -100.00
2022-05-05 2022-03-31 13F American Tower COM 03027X100 200 -632 -75.96 50 -79.42 0.0142
2022-02-08 2021-12-31 13F American Tower COM 03027X100 832 508 156.79 243 185.88 0.0650
2021-10-27 2021-09-30 13F American Tower COM 03027X100 324 115 55.02 85 51.79 0.0219
2021-07-21 2021-06-30 13F American Tower COM 03027X100 209 9 4.50 56 19.15 0.0148
2021-05-06 2021-03-31 13F American Tower COM 03027X100 200 13 6.95 47 11.90 0.0138
2021-01-27 2020-12-31 13F American Tower COM 03027X100 187 -70 -27.24 42 -32.26 0.0127
2020-10-26 2020-09-30 13F American Tower COM 03027X100 257 70 37.43 62 29.17 0.0177
2020-08-04 2020-06-30 13F American Tower COM 03027X100 187 100 114.94 48 152.63 0.0182
2020-04-09 2020-03-31 13F American Tower COM 03027X100 87 -202 -69.90 19 -71.64 0.0071
2020-01-06 2019-12-31 13F American Tower COM 03027X100 289 -19 -6.17 67 -1.47 0.0243
2019-10-16 2019-09-30 13F AMERICAN TOWER CORP NEW COM COM 03027X100 308 0 0.00 68 7.94 0.0300
2019-08-05 2019-06-30 13F AMERICAN TOWER CORP NEW COM COM 03027X100 308 36 13.24 63 16.67 0.0319
2019-04-16 2019-03-31 13F AMERICAN TOWER CORP NEW COM COM 03027X100 272 100 58.14 54 100.00 0.0225
2019-01-29 2018-12-31 13F AMERICAN TOWER CORP NEW COM COM 03027X100 172 -300 -63.56 27 -60.87 0.0098
2018-10-29 2018-09-30 13F American Tower COM 03027X100 472 0 0.00 69 1.47 0.0279
2018-08-10 2018-06-30 13F AMERICAN TOWER CORP NEW COM COM 03027X100 472 300 174.42 68 172.00 0.0289
2018-05-07 2018-03-31 13F AMERICAN TOWER CORP NEW COM COM 03027X100 172 0 0.00 25 0.00 0.0105
2018-04-10 2017-12-31 13F/A-1 American Tower COM 03027X100 172 0 0.00 25 4.17 0.0112
2018-02-13 2017-12-31 13F American Tower COM 03027X100 172 0 25 0.0099
2017-11-06 2017-09-30 13F American Tower COM 03027X100 172 0 0.00 24 4.35 0.0087
2017-08-11 2017-06-30 13F AMERICAN TOWER COM 03027X100 172 0 0.00 23 9.52 0.0130
2017-05-15 2017-03-31 13F/A-1 AMERICAN TOWER COM 03027X100 172 -7,425 -97.74 21 -97.38 0.0124
2017-05-11 2017-03-31 13F American Tower Stock 03027X100 172 -7,425 21 0.0142
2017-01-24 2016-12-31 13F American Tower COM 03027X100 7,597 7,597 803 0.5998
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.