American Tower AMT Institutional Ownership

Updated Oct 22, 2026

American Tower Corp (NYSE:AMT) was reported as a holding by 1,743 institutional investors in 13F filings for the quarter ended June 30, 2026.

• Together they owned 94.42% of the outstanding stock in Q2 2026, up from 92.05% a quarter earlier.
• Total shares held in AMT rose 2.52% from Q1 2026; the number of holders fell 4.96% from Q2 2025.
• Of these 1,743 holders, 860 added to their positions, 657 reduced their stakes and 226 left their positions unchanged.
• In total, institutional investors held 439.96Mn shares of American Tower at the end of Q2 2026, up 10.83Mn from the prior quarter and up 13.67Mn from a year earlier.
• BlackRock, Inc. was the top holder of American Tower as of June 30, 2026, with 45.8Mn shares, or 9.83% of shares outstanding.
• The largest position increases in AMT for Q2 2026 were by AQR Capital Management LLC (+1.89Mn shares), Jane Street Group, LLC (+1.46Mn shares), Millennium Management LLC (+1.17Mn shares), Cohen & Steers, Inc. (+1.16Mn shares) and Qube Research & Technologies Ltd (+1.14Mn shares).
• Among holders that kept a stake in American Tower, the biggest sellers in Q2 2026 were JPMorgan Chase & Co (-6.27Mn shares), Nuveen, LLC (-1.26Mn shares), Capital Research Global Investors (-1.18Mn shares), Deutsche Bank AG (-1.07Mn shares) and Franklin Templeton Inc (-925.18K shares).
• Per Business Quant, the top 10 investors in AMT for the quarter ended June 30, 2026 were BlackRock, Inc. (45.8Mn shares), Vanguard Capital Management LLC (30.44Mn shares), Vanguard Portfolio Management LLC (27.85Mn shares), State Street Corp (22.07Mn shares), Geode Capital Management, LLC (13.84Mn shares), Cohen & Steers, Inc. (13.78Mn shares), FMR LLC (11.38Mn shares), Morgan Stanley (9.61Mn shares), JPMorgan Chase & Co (8.85Mn shares) and Lazard Asset Management LLC (8.4Mn shares).