American Tower Corporation
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American Tower Corporation (AMT) SEC Filings
Browse all American Tower Corporation SEC filings, including Annual reports (10-K), Quarterly reports (10-Q), 8-K, proxy statements (DEF 14A), and insider filings (Form 4). Access official documents by filing date, reporting period, and form type. ...more
American Tower Corporation Reports: Annual 10-K, Quarterly 10-Q & SEC Filings
SEC Filings
Date
2026
DEF 14A
Final shareholder voting details (board elections and executive pay)
DEFA14A
Additional or supplemental proxy disclosures
ARS
Annual Report to Shareholders
SC 13G/A
Updated passive ownership disclosure
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
8-K
Material company events (earnings, M&A, or leadership changes)
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
8-K
Material company events (earnings, M&A, or leadership changes)
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
8-K
Material company events (earnings, M&A, or leadership changes)
8-K
Material company events (earnings, M&A, or leadership changes)
10-K
Annual financial results and management updates
4
Insider ownership (buying, selling) activity
8-K
Material company events (earnings, M&A, or leadership changes)
8-K
Material company events (earnings, M&A, or leadership changes)
4
Insider ownership (buying, selling) activity
4
Insider ownership (buying, selling) activity
2025
SC 13D/A
Updated disclosure of active ownership changes
American Tower Corporation (Form DEF 14A) 2026
Proxy & Voting / Final shareholder voting details (board elections and executive pay)
Apr 8, 2026
