AMT
American Tower Corporation · Real Estate · REIT - Specialty
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2026
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 283.38K | $45.60M | n/a | n/a |
| Q2 2026 | 178 | 0 | 326.93M | $53.57B | +3 | −4 |
| Q1 2026 | 182 | +1 | 326.66M | $56.34B | +5 | −5 |
| Q4 2025 | 180 | +1 | 365.57M | $64.21B | +2 | n/a |
| Q3 2025 | 25 | 0 | 222.75M | $42.86B | +2 | −3 |
| Q2 2025 | 23 | -1 | 191.62M | $42.38B | n/a | −1 |
| Q1 2025 | 21 | 0 | 69.31M | $15.07B | +1 | −1 |
| Q4 2024 | 21 | 0 | 64.21M | $11.80B | +2 | −2 |
| Q3 2024 | 20 | +2 | 41.47M | $9.63B | +2 | n/a |
| Q2 2024 | 18 | n/a | 40.82M | $7.93B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wealth Enhancement Advisory… | 185.48K | +42.7% | $29.76M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | TD Waterhouse Canada Inc. | 77.00K | +4.3% | $12.41M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Assenagon Asset Management S.A. | 20.90K | -48.2% | $3.42M | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,737 holders, 416.18M shares, $67.33B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Director · 2.83K sh @ 177.00 · $500,733
Open-market sales (S)
No open-market insider sales in our coverage window.
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology