American Tower Corporation
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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
2026
Material company events (earnings, M&A, or leadership changes)
Registration of securities for listing on a national exchange
Registration of shares for employee stock plans
Exchange-filed notice of delisting
Material company events (earnings, M&A, or leadership changes)
Insider ownership (buying, selling) activity
Prospectus variant for specific offering structures
Material company events (earnings, M&A, or leadership changes)
Shelf offering prospectus with final pricing terms
Free writing prospectus related to a securities offering
Material company events (earnings, M&A, or leadership changes)
Insider ownership (buying, selling) activity
Initial disclosure of insider ownership
Passive large shareholder ownership disclosure
Material company events (earnings, M&A, or leadership changes)
Passive large shareholder ownership disclosure
Quarterly financial results and management updates
Additional or supplemental proxy disclosures
Final shareholder voting details (board elections and executive pay)
Additional or supplemental proxy disclosures
Annual Report to Shareholders
Updated passive ownership disclosure
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Insider ownership (buying, selling) activity
Current Events / Material company events (earnings, M&A, or leadership changes)
May 27, 2026
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