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American Tower
AMT

1,794 hedge funds and large institutions have $82.6B invested in American Tower in 2025 Q3 according to their latest regulatory filings, with 131 funds opening new positions, 644 increasing their positions, 754 reducing their positions, and 156 closing their positions.

New
Increased
Maintained
Reduced
Closed

94% more call options, than puts

Call options by funds: $641M | Put options by funds: $330M

1.66% less ownership

Funds ownership: 93.33% → 91.67% (-1.7%)

3% less funds holding

Funds holding: 1,846 → 1,794 (-52)

15% less capital invested

Capital invested by funds: $96.6B → $82.6B (-$14.1B)

15% less repeat investments, than reductions

Existing positions increased: 644 | Existing positions reduced: 754

16% less first-time investments, than exits

New positions opened: 131 | Existing positions closed: 156

35% less funds holding in top 10

Funds holding in top 10: 34 → 22 (-12)

Holders
1,794
Holders Change
-52
Holders Change %
-2.82%
% of All Funds
23.55%
Holding in Top 10
22
Holding in Top 10 Change
-12
Holding in Top 10 Change %
-35.29%
% of All Funds
0.29%
New
131
Increased
644
Reduced
754
Closed
156
Calls
$641M
Puts
$330M
Net Calls
+$311M
Net Calls Change
-$16.8M

Top Buyers

1
Lazard Asset Management
Lazard Asset Management
New York
+$886M
2
JP Morgan Chase
JP Morgan Chase
New York
+$565M
3
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss
Texas
+$331M
4
Morgan Stanley
Morgan Stanley
New York
+$174M
5
Barclays
Barclays
United Kingdom
+$155M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$1.04B
2
Viking Global Investors
Viking Global Investors
Connecticut
-$618M
3
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$378M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$298M
5
Fidelity Investments
Fidelity Investments
Massachusetts
-$280M
Name Holding Trade Value Shares
Change 		Change in
Stake
SB
626
Simmons Bank
Arkansas
$2.93M +$77.1K +370 +2%
CA
627
CGN Advisors
Kansas
$2.93M +$79.2K +380 +3%
TIM
628
Thompson Investment Management
Wisconsin
$2.92M +$91.7K +440 +3%
CSP
629
Cary Street Partners
Virginia
$2.91M +$12.9K +62 +0.4%
LAM
630
Lummis Asset Management
Texas
$2.89M – – –
CTI
631
Community Trust & Investment
Kentucky
$2.88M -$49.2K -236 -2%
MC
632
Machina Capital
France
$2.87M +$3.11M +14,927 New
NMIMC
633
Northwestern Mutual Investment Management Company
Wisconsin
$2.87M -$2.08K -10 -0.1%
PFM
634
Premier Fund Managers
United Kingdom
$2.86M -$510K -2,450 -14%
GWMR
635
GC Wealth Management RIA
Massachusetts
$2.85M +$349K +1,675 +13%
BSC
636
Brown Shipley & Co
United Kingdom
$2.85M -$61.9K -297 -2%
PVI
637
Pine Valley Investments
New Jersey
$2.84M +$539K +2,587 +21%
DFCM
638
Dark Forest Capital Management
Puerto Rico
$2.79M +$2.43M +11,680 +413%
AG
639
Algert Global
California
$2.79M +$2.31M +11,069 +325%
MFG
640
Merit Financial Group
Georgia
$2.78M +$326K +1,565 +12%
DS
641
DRW Securities
Illinois
$2.77M +$1.7M +8,154 +133%
LCM
642
Legato Capital Management
California
$2.75M – – –
OAM
643
Oak Asset Management
California
$2.74M -$74K -355 -2%
LFM
644
LGT Fund Management
Liechtenstein
$2.74M -$13.1M -62,734 -82%
WT
645
Whittier Trust
California
$2.73M -$268K -1,285 -8%
PAS
646
Park Avenue Securities
New York
$2.71M -$149K -713 -5%
DADC
647
D.A. Davidson & Co
Montana
$2.69M -$173K -828 -6%
WC
648
Westerkirk Capital
$2.67M – – –
JF
649
Jericho Financial
Ohio
$2.66M +$48.5K +233 +2%
FNA
650
First National Advisers
Nebraska
$2.65M +$165K +790 +6%
24 25
26
27 28

AMT Hedge Fund Activity: Q3 2025 in Review

1,794 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in American Tower (AMT) for Q3 2025, worth a combined $82.6B — down 15% from $96.6B a quarter earlier.

Sellers outnumbered buyers: 156 funds closed out of AMT and 131 opened new positions — a net loss of 25 holders — while 754 trimmed existing stakes and 644 added.

The largest buyer was Lazard Asset Management, adding an estimated $886M. The largest seller was Wellington Management Group, cutting an estimated $1.04B.

  • 1,794 institutional investors held American Tower (AMT) as of Q3 2025, down from 1,846 in Q2 2025.
  • Funds reported $82.6B of American Tower stock for Q3 2025, down 15% quarter-over-quarter.
  • 131 funds opened new American Tower positions in Q3 2025 and 156 closed out, a net change of -25 holders.
  • The largest American Tower buyer in Q3 2025 was Lazard Asset Management, an estimated $886M added.
  • The largest American Tower seller in Q3 2025 was Wellington Management Group, an estimated $1.04B sold.

Based on aggregated 13F filings for Q3 2025.