FilingIndex
SC 13D/AThe Stakes

AMERICAN TOWER CORP /MA/ files SC 13D/A

Filed Dec 11, 2025 · 6mo ago · Accession 0001193125-25-315968

Plain English

Activist stake — an investor has acquired more than 5% with intent to influence.

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Filing details
Ticker
AMT
CIK
1053507
Form type
SC 13D/A
Filing date
Dec 11, 2025
Report date
Document
Size