Cantillon Capital Management LLC
Position in AMT — American Tower Corp /Ma/
CIK 1279936
New York, NY
Position in AMT
as of Mar 31, 2026
· filed May 7, 2026
Position Value
$278,280,589
-$43,104,684 QoQ
Shares Held
1,612,473
-11.9% QoQ
Ownership
0.346%
of shares outstanding
% of Portfolio
1.85%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority
Sole 90%
Shared 0%
None 10%
Common Shares in AMT Over Time
Shares Held
Position Value (USD)
All Filings in AMT
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $278,280,589 | 1,612,473 | Shares | Defined | 2026-05-07 | |
| 2025-12-31 | $321,385,273 | 1,830,525 | Shares | Defined | 2026-02-11 | |
| 2025-09-30 | $349,217,733 | 1,815,816 | Shares | Defined | 2026-02-17 | |
| 2025-06-30 | $405,759,787 | 1,835,851 | Shares | Defined | 2026-02-17 | |
| 2025-03-31 | $411,087,743 | 1,889,190 | Shares | Defined | 2026-02-17 | |
| 2024-12-31 | $357,208,398 | 1,947,595 | Shares | Defined | 2025-02-05 | |
| 2024-09-30 | $450,527,324 | 1,937,252 | Shares | Defined | 2024-11-07 | |
| 2024-06-30 | $387,827,947 | 1,995,205 | Shares | Defined | 2024-08-05 | |
| 2024-03-31 | $414,221,747 | 2,096,370 | Shares | Defined | 2024-05-08 | |
| 2023-12-31 | $461,642,972 | 2,138,424 | Shares | Defined | 2024-02-07 | |
| 2023-09-30 | $307,049,692 | 1,867,131 | Shares | Defined | 2023-11-06 | |
| 2023-06-30 | $363,529,668 | 1,874,444 | Shares | Defined | 2023-08-09 | |
| 2023-03-31 | $360,147,002 | 1,762,489 | Shares | Defined | 2023-05-04 | |
| 2022-12-31 | $379,778,752 | 1,792,593 | Shares | Defined | 2023-02-06 | |
| 2022-09-30 | $393,136,954 | 1,831,099 | Shares | Defined | 2022-11-03 | |
| 2022-06-30 | $471,365,978 | 1,844,227 | Shares | Defined | 2022-08-03 | |
| 2022-03-31 | $465,396,354 | 1,852,545 | Shares | Defined | 2022-05-03 | |
| 2021-09-30 | $513,458,470 | 1,934,586 | Shares | Defined | 2021-10-26 | |
| 2021-06-30 | $531,432,914 | 1,967,250 | Shares | Defined | 2021-07-27 | |
| 2021-03-31 | $475,603,175 | 1,989,472 | Shares | Defined | 2021-05-03 | |
| 2020-12-31 | $463,767,355 | 2,066,147 | Shares | Defined | 2021-02-03 | |
| 2020-09-30 | $501,934,214 | 2,076,425 | Shares | Defined | 2020-10-30 | |
| 2020-06-30 | $542,578,506 | 2,098,625 | Shares | Defined | 2020-07-31 | |
| 2020-03-31 | $452,846,182 | 2,079,661 | Shares | Defined | 2020-04-30 | |
| No filing history on record for this holder in this stock. | ||||||