Who owns American Tower (AMT)?
163 holders named in SEC filings declare between 64.6% and 86.5% of American Tower's shares outstanding, as of Jun 30, 2026. The largest are Vanguard (13.6%), BlackRock (9.8%) and State Street (4.7%); the five largest hold 34.1% together. Another 1,585 institutions hold small positions worth 7.9%. At least 5.6% of the shares appear in no ownership filing: investors who do not have to report, mostly individuals. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 5.9% and sold 5.6% of the shares, a net purchase of 0.27%; 141 opened a position, 666 added, 659 reduced and 138 sold out. Biggest buyers: AQR (+1.9M shares) and Jane Street (+1.5M shares). Biggest sellers: JPMorgan (-6.3M) and Nuveen (-1.3M). Over time, 1,734 managers declared American Tower in their 13F for Q2 2026, against 1,338 for Q4 2019: together at most 94.4% of the shares outstanding, against 91.6%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| Vanguard | 13F | 13.6% | Jun 30, 2026 | Q4 2019 or earlier |
| BlackRock | 13F | 9.8% | Jun 30, 2026 | Q4 2019 or earlier |
| State Street | 13F | 4.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Geode Capital | 13F | 3.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Cohen & Steers, Inc. | 13F | 3.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Fidelity (FMR) | 13F | 2.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Capital Group | 13F | 2.3% | Jun 30, 2026 | Q4 2019 or earlier |
| Morgan Stanley | 13F | 2.1% | Jun 30, 2026 | Q4 2019 or earlier |
| JPMorgan | 13F | 1.9% | Jun 30, 2026 | Q4 2019 or earlier |
| LAZARD ASSET MANAGEMENT LLC | 13F | 1.8% | Jun 30, 2026 | Q4 2019 or earlier |
| UBS | 13F | 1.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Invesco | 13F | 1.5% | Jun 30, 2026 | Q4 2019 or earlier |
| Deutsche Bank | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Norges Bank | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Dimensional | 13F | 1.3% | Jun 30, 2026 | Q4 2019 or earlier |
| PRINCIPAL FINANCIAL GROUP INC | 13F | 1.2% | Jun 30, 2026 | Q4 2019 or earlier |
| Charles Schwab | 13F | 1.2% | Jun 30, 2026 | Q4 2019 or earlier |
| Northern Trust | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Goldman Sachs | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Legal & General | 13F | 1.0% | Jun 30, 2026 | Q4 2019 or earlier |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 13F | 0.99% | Jun 30, 2026 | Q1 2024 |
| T. Rowe Price | 13F | 0.90% | Jun 30, 2026 | Q4 2019 or earlier |
| Amundi | 13F | 0.87% | Jun 30, 2026 | Q4 2019 or earlier |
| Bank of America | 13F | 0.84% | Jun 30, 2026 | Q4 2019 or earlier |
| Clearbridge Investments, LLC | 13F | 0.80% | Jun 30, 2026 | Q4 2019 or earlier |
American Tower institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 1,338 | 91.6% | $93.4B | 59.2% |
| Q4 2020 | 1,548 | 89.7% | $89.4B | 58.1% |
| Q4 2021 | 1,744 | 90.6% | $120.5B | 57.6% |
| Q4 2022 | 1,683 | 90.6% | $89.5B | 55.6% |
| Q4 2023 | 1,782 | 92.9% | $93.4B | 56.2% |
| Q4 2024 | 1,767 | 92.8% | $79.6B | 52.9% |
| Q4 2025 | 1,764 | 93.7% | $77.0B | 50.9% |
| Q2 2026 | 1,734 | 94.4% | $72.0B | 49.7% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.