AMERICAN TOWER CORP NEW

American Tower Corporation (ticker AMT, CUSIP 03027X100) is the world's largest publicly traded independent owner, operator, and developer of communications real estate — more than 148,000 towers and related infrastructure across six continents. It bills to landlords and carrier tenants on long-negotiated tower-leasing contracts, generating recurring cash flows whose bond-like stability has made AMT a staple allocation for bond-oriented institutional portfolios. In the Q2 2026 13F data, ten institutions reported $30.59M in AMT holdings — a figure that, while large in absolute terms, is dominated by a single name at an extraordinary weight: Eastern Bank reported $26.52M and 162,107 shares, representing 86.7% of the reported AMT 13F base. Eastern Bank added 9,016 shares during the quarter and saw its position grow modestly in value despite a stock-price decline (the valueChange of +$95K against a large share addition implies AMT price fell approximately $36/share over the period). With Eastern Bank holding at this weight, the reported AMT 13F data functions effectively as a one-institution signal: Eastern Bank's directional decision — added in Q2 — is the institutional read-through. MassMutual trimmed its tiny $3.33M position by 154 shares, a rounding reduction relative to its book. Versant Capital cut 130 shares ($27K). Adelphi Trust and First County Bank added modestly.