Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in AMT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 45.8M | $7.49B | +1.9% | 9.828% | 0.11% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 30.4M | $4.98B | +0.3% | 6.532% | 0.11% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 27.9M | $4.56B | +0.9% | 5.977% | 0.21% |
| 4 | STATE STREET CORP | 22.1M | $3.65B | +2.9% | 4.736% | 0.05% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 13.8M | $2.26B | -0.7% | 2.970% | 0.12% |
| 6 | FMR LLC | 11.4M | $1.86B | +0.5% | 2.442% | 0.08% |
| 7 | MORGAN STANLEY | 9.6M | $1.57B | +0.3% | 2.063% | 0.08% |
| 8 | JPMORGAN CHASE & CO | 8.9M | $1.49B | -41.5% | 1.900% | 0.08% |
| 9 | LAZARD ASSET MANAGEMENT LLC | 8.4M | $1.37B | +14.7% | 1.803% | 2.08% |
| 10 | Invesco Ltd. | 7.1M | $1.16B | -2.8% | 1.517% | 0.09% |
| 11 | DEUTSCHE BANK AG\ | 6.7M | $1.10B | -13.7% | 1.438% | 0.32% |
| 12 | Capital World Investors | 6.6M | $1.07B | +15.7% | 1.407% | 0.13% |
| 13 | NORGES BANK | 6.4M | $1.04B | — | 1.366% | 0.10% |
| 14 | DIMENSIONAL FUND ADVISORS LP | 5.9M | $961.2M | +1.1% | 1.261% | 0.17% |
| 15 | PRINCIPAL FINANCIAL GROUP INC | 5.7M | $939.3M | -2.9% | 1.232% | 0.46% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 5.6M | $917.2M | +7.0% | 1.203% | 0.12% |
| 17 | NORTHERN TRUST CORP | 5.0M | $821.7M | -5.9% | 1.078% | 0.10% |
| 18 | GOLDMAN SACHS GROUP INC | 5.0M | $812.5M | +5.5% | 1.066% | 0.07% |
| 19 | Legal & General Group Plc | 4.9M | $793.9M | +0.6% | 1.042% | 0.17% |
| 20 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 4.6M | $752.9M | +9.7% | 0.988% | 0.33% |
| 21 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 4.5M | $740.4M | +4.3% | 0.971% | 0.13% |
| 22 | Amundi | 4.0M | $661.8M | +5.6% | 0.868% | 0.16% |
| 23 | BANK OF AMERICA CORP /DE/ | 3.9M | $638.8M | -13.4% | 0.838% | 0.04% |
| 24 | Clearbridge Investments, LLC | 3.7M | $612.2M | +1.6% | 0.803% | 0.51% |
| 25 | WELLS FARGO & COMPANY/MN | 3.4M | $560.8M | -2.1% | 0.736% | 0.09% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AMT — a direct measure of their conviction.
Filings activity in AMT during Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new AMT position in Q2 2026
Institutions that fully closed their AMT position in Q2 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,749 | +0.4% | 94.96% | +1.91 pp | $68.29B | 6.8% |
| Q1 2026 | 1,742 | +0.5% | 93.05% | 11.22 pp | $73.25B | +1.3% |
| Q4 2025 | 1,733 | 0.9% | 104.27% | +11.34 pp | $72.32B | 6.8% |
| Q3 2025 | 1,749 | 2.7% | 92.93% | 1.27 pp | $77.61B | 15% |
| Q2 2025 | 1,798 | +1.4% | 94.20% | +1.64 pp | $91.48B | +8.0% |
| Q1 2025 | 1,774 | +3.7% | 92.56% | +0.16 pp | $84.73B | +17% |
| Q4 2024 | 1,711 | 3.6% | 92.40% | +1.43 pp | $72.26B | 19% |
| Q3 2024 | 1,774 | — | 90.97% | — | $89.40B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AMT stock.
Based on Q2 2026 13F filings, institutional ownership of American Tower Corporation stands at 95.0%, held across 1,749 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AMT, with approximately 45,796,561 shares worth $7.49B as of Q2 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of AMT.
Our composite Smart Money Score for AMT is 47 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
151 institutions opened new positions in AMT during Q2 2026, while 153 fully exited. 434 added to existing positions and 1,114 trimmed.
AMT institutional ownership rose by 1.91 percentage points quarter-over-quarter, with a net change of +7 holders.
The top 10 institutions account for 44.5% of all reported 13F value in AMT, and the top 25 account for 62.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
American Tower Corporation (AMT) Institutional Ownership