AMT fund manager activity
American Tower Corporation (REIT) · NYSE. Reported by 18 tracked fund managers in their 13F filings, Q2 2013 to Q2 2026.
Q4 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Chuck Akre - Akre Capital Management | Trimmed | 255,267 | $44,817,227 | 0.49% | Feb 13, 2026 |
| Ron Baron - Baron Capital | Trimmed | 267,813 | $47,019,928 | 0.13% | Feb 17, 2026 |
| William Von Mueffling - Cantillon Capital Management | Added | 1,830,525 | $321,385,274 | 1.74% | Feb 11, 2026 |
| Christopher Davis - Davis Advisors | Trimmed | 63,970 | $11,231,213 | 0.05% | Feb 2, 2026 |
| Ken Fisher - Fisher Asset Management | Trimmed | 1,779,533 | $312,432,733 | 0.11% | Feb 9, 2026 |
| Jeremy Grantham - GMO | No change | 6,412 | $1,125,755 | 0.00% | Feb 17, 2026 |
| Joel Greenblatt - Gotham Asset Management | Trimmed | 114,054 | $20,024,461 | 0.07% | Feb 17, 2026 |
| Mairs & Power Funds | Trimmed | 2,020 | $354,651 | 0.00% | Feb 17, 2026 |
| Torray Funds | Sold out | — | — | 0.00% | Jan 28, 2026 |
Q3 2025
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Chuck Akre - Akre Capital Management | Trimmed | 442,843 | $85,167,566 | 0.85% | Nov 13, 2025 |
| Ron Baron - Baron Capital | Trimmed | 534,053 | $102,709,073 | 0.27% | Nov 14, 2025 |
| William Von Mueffling - Cantillon Capital Management | Trimmed | 1,815,816 | $349,217,733 | 1.92% | Feb 17, 2026 |
| Christopher Davis - Davis Advisors | Trimmed | 65,670 | $12,629,654 | 0.07% | Dec 29, 2025 |
| Ken Fisher - Fisher Asset Management | Added | 1,835,008 | $352,908,971 | 0.13% | Nov 12, 2025 |
| Jeremy Grantham - GMO | Added | 6,412 | $1,233,156 | 0.00% | Nov 13, 2025 |
| Joel Greenblatt - Gotham Asset Management | Added | 118,098 | $22,712,607 | 0.10% | Nov 14, 2025 |
| Mairs & Power Funds | Added | 3,031 | $582,922 | 0.01% | Nov 14, 2025 |
| Torray Funds | Trimmed | 1,221 | $234,823 | 0.03% | Oct 22, 2025 |
| Viking Global Investors | Sold out | — | — | 0.00% | Nov 14, 2025 |
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