Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

AMT

American Tower Corporation · Real Estate · REIT - Specialty

178.57 +0.1% mkt cap $83.21B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
23Tracked holders
-1Δ holders
191.62MShares held
$42.38BReported value
+0New positions
−1Exits
Falling Conviction score 52/100 4 quarters of rising tracked shares ●●●●○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -4.2% · share flow 0.0% · net new positions -4.3%formula
Concentrated accumulation — rising shares among fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 180 0 331.46M $54.32B +3 −2
Q1 2026 182 +1 326.66M $56.34B +5 −5
Q4 2025 180 +1 365.57M $64.21B +2
Q3 2025 25 0 222.75M $42.86B +2 −3
Q2 2025 23 -1 191.62M $42.38B −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
Q2 2024 18 40.82M $7.93B
Holder count
Who holds it · Q2 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 The Vanguard Group (passive) 63.03M $13.93B 0.2% n/c 1 SEC ↗
2 The Vanguard Group (passive) 63.03M $13.93B 0.2% n/c 1 SEC ↗
3 The Vanguard Group (passive) 63.03M $13.93B 0.2% n/c 1 SEC ↗
4 The Vanguard Group (passive) 63.03M $13.93B 0.2% n/c 1 SEC ↗
5 The Vanguard Group (passive) 63.03M $13.93B 0.2% n/c 1 SEC ↗
6 The Vanguard Group (passive) 63.03M $13.93B 0.2% n/c 1 SEC ↗
7 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
8 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
9 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
10 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
11 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
12 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
13 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
14 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
15 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
16 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
17 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
18 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
19 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
20 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
21 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
22 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
23 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
24 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
25 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
26 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
27 BlackRock (passive) 45.66M $10.09B 0.2% n/c 1 SEC ↗
28 State Street Global Advisors (passive) 21.11M -0.6% $4.70B 0.2% ▼ Trim 3 SEC ↗
29 Fidelity (FMR) 13.59M $3.00B 0.2% n/c 1 SEC ↗
30 Fidelity (FMR) 13.59M $3.00B 0.2% n/c 1 SEC ↗
31 Fidelity (FMR) 13.59M $3.00B 0.2% n/c 1 SEC ↗
32 Fidelity (FMR) 13.59M $3.00B 0.2% n/c 1 SEC ↗
33 Fidelity (FMR) 13.59M $3.00B 0.2% n/c 1 SEC ↗
34 Fidelity (FMR) 13.59M $3.00B 0.2% n/c 1 SEC ↗
35 Geode Capital Management (passive) 13.10M -0.9% $2.89B 0.2% ▼ Trim 5 SEC ↗
36 Geode Capital Management (passive) 13.10M -0.9% $2.89B 0.2% ▼ Trim 5 SEC ↗
37 T. Rowe Price 7.63M -6.4% $1.69B 0.2% ▼ Trim 5 SEC ↗
38 T. Rowe Price 7.63M -6.4% $1.69B 0.2% ▼ Trim 5 SEC ↗
39 T. Rowe Price 7.63M -6.4% $1.69B 0.2% ▼ Trim 5 SEC ↗
40 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
41 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
42 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
43 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
44 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
45 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
46 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
47 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
48 Wellington Management 7.57M +5.9% $1.67B 0.3% ▲ Add 5 SEC ↗
49 Norges Bank (passive) 6.21M +2.0% $1.37B 0.2% ▲ Add 5 SEC ↗
50 Capital World Investors 4.04M +0.2% $892.97M 0.1% ▲ Add 5 SEC ↗
51 Viking Global Investors 2.80M +233.5% $618.22M 1.8% ▲ Add 3 SEC ↗
52 Arrowstreet Capital 2.07M +11.9% $457.84M 0.3% ▲ Add 5 SEC ↗
53 Fisher Asset Management 1.82M +4.4% $402.32M 0.2% ▲ Add 5 SEC ↗
54 Point72 Asset Management 1.10M -21.1% $242.54M 0.6% ▼ Trim 5 SEC ↗
55 Marshall Wace 509.62K -26.4% $112.64M 0.1% ▼ Trim 2 SEC ↗
56 Adage Capital Partners 463.81K +44.4% $102.51M 0.2% ▲ Add 5 SEC ↗
57 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
58 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
59 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
60 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
61 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
62 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
63 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
64 AQR Capital Management 385.66K +37.5% $83.87M 0.1% ▲ Add 5 SEC ↗
65 Millennium Management 255.16K -49.1% $56.40M 0.1% ▼ Trim 5 SEC ↗
66 Two Sigma Investments 96.60K +395.4% $21.35M 0.0% ▲ Add 5 SEC ↗
67 Gotham Asset Management 87.59K +12.3% $19.36M 0.1% ▲ Add 5 SEC ↗
68 Baillie Gifford 67.82K -3.2% $14.99M 0.0% ▼ Trim 5 SEC ↗
69 Baillie Gifford 67.82K -3.2% $14.99M 0.0% ▼ Trim 5 SEC ↗
70 GAMCO Investors 27.58K +0.9% $6.10M 0.1% ▲ Add 5 SEC ↗
71 D. E. Shaw & Co. 3.85K -95.8% $851,148 0.0% ▼ Trim 4 SEC ↗
72 D. E. Shaw & Co. 3.85K -95.8% $851,148 0.0% ▼ Trim 4 SEC ↗
73 Bridgewater Associates 3.47K +9.0% $766,276 0.0% ▲ Add 3 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

Citadel Advisors $330.03M was 0.3%

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.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

Aug 21 Kalathur Rajesh

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

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2025 · Methodology · Get this via the API