American Tower
1,778 hedge funds and large institutions have $77B invested in American Tower in 2025 Q4 according to their latest regulatory filings, with 206 funds opening new positions, 570 increasing their positions, 820 reducing their positions, and 182 closing their positions.
27% more call options, than puts
Call options by funds: $460M | Put options by funds: $362M
13% more first-time investments, than exits
New positions opened: 206 | Existing positions closed: 182
9.9% more ownership
Funds ownership: 91.68% → 101.57% (+9.9%)
1% less funds holding
Funds holding: 1,798 → 1,778 (-20)
7% less capital invested
Capital invested by funds: $82.5B → $77B (-$5.59B)
9% less funds holding in top 10
Funds holding in top 10: 22 → 20 (-2)
30% less repeat investments, than reductions
Existing positions increased: 570 | Existing positions reduced: 820
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JSC
J. Stern & Co
London,
United Kingdom
|
+$6.83B |
| 2 |
Capital International Investors
Los Angeles,
California
|
+$430M |
| 3 |
Lazard Asset Management
New York
|
+$295M |
| 4 |
Canada Pension Plan Investment Board
Toronto Ontario,
Ontario, Canada
|
+$285M |
| 5 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$268M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$354M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
-$340M |
| 3 |
Goldman Sachs
New York
|
-$268M |
| 4 |
BlackRock
New York
|
-$249M |
| 5 |
Cohen & Steers
New York
|
-$185M |
AMT Hedge Fund Activity: Q4 2025 in Review
1,778 of the 8,264 institutional investors tracked by Wall St. Rank reported a position in American Tower (AMT) for Q4 2025, worth a combined $77B — down 6.8% from $82.5B a quarter earlier.
Buyers outnumbered sellers: 206 funds opened new AMT positions and 182 closed out — a net gain of 24 holders — while 570 added to existing stakes and 820 trimmed.
The largest buyer was J. Stern & Co, adding an estimated $6.83B. The largest seller was Massachusetts Financial Services, cutting an estimated $354M.
- 1,778 institutional investors held American Tower (AMT) as of Q4 2025, down from 1,798 in Q3 2025.
- Funds reported $77B of American Tower stock for Q4 2025, down 6.8% quarter-over-quarter.
- 206 funds opened new American Tower positions in Q4 2025 and 182 closed out, a net change of +24 holders.
- The largest American Tower buyer in Q4 2025 was J. Stern & Co, an estimated $6.83B added.
- The largest American Tower seller in Q4 2025 was Massachusetts Financial Services, an estimated $354M sold.
Based on aggregated 13F filings for Q4 2025.