American Tower (AMT)Officer sold ~$832K

~$832K

Approx. value · 4,454 sh @ $186.73

24K

Holds after · shares reported

Traded

Feb 27, 2026

Filed

Mar 3, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jan 26, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On January 26, 2026, American Tower Corporation (the “Company”) appointed Paul Blanchett as its Senior Vice President and Chief Accounting Officer (Principal Accounting Officer), effective April 27, 2026 (the “Start Date”).”
2. Feb 17, 2026Insider · 1 personInsiders: 4 sales (~$6.6M)
3. Feb 24, 2026Company filing · Form 8-K · ResultsReported its results
4. Feb 25, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On February 25, 2026, the Compensation and Human Capital Committee (the “Compensation Committee”) of the Board of Directors of American Tower Corporation (the “Company”) considered the compensation arrangements with the Company’s executive officers.”
5. Feb 27, 2026 · this disclosureInsiderOfficer sold ~$832K of AMT shares in the open market

What came next

1. Feb 27, 2026InsiderOfficer sold ~$122K of AMT shares in the open market
2. Mar 2, 2026Insider · 1 personInsiders: 4 sales (~$7.9M)
3. Mar 4, 2026Insider · 2 peopleInsiders: 4 sales (~$6.4M)
4. Mar 6, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On March 6, 2026, Robert D. Hormats notified the Corporate Secretary of American Tower Corporation (the “Company”) of his decision to not stand for re-election as a director at the Company’s 2026 Annual Meeting of Stockholders (the “Annual Meeting”).”
5. Mar 10, 2026Insider · Their first buy on recordDirector purchased ~$495K of AMT shares in the open market
6. Mar 26, 20265% stakeThe Vanguard Group reported a passive stake (13G)
7. Apr 17, 2026CongressDisclosed sale of AMT — reported range $1,001 - $15,000
8. Apr 28, 2026Company filing · Form 8-K · ResultsReported its results
9. Apr 28, 20265% stakeVanguard Portfolio Management reported a passive stake (13G) of 5.9%
10. Apr 28, 2026InsiderOfficer sold ~$99K of AMT shares in the open market
11. Apr 29, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.6%
12. Apr 29, 2026InsiderOfficer sold ~$74K of AMT shares in the open market
13. May 7, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
14. May 11, 2026CongressDisclosed sale of AMT — reported range $1,001 - $15,000
15. May 20, 2026Company filing · Form 8-K · Executive change, Shareholder voteChanged a top executive or board member, and held a shareholder vote (and 1 more item)“On May 20, 2026, at the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of American Tower Corporation (the “Company”), the stockholders of the Company approved the American Tower Corporation 2026 Equity Incentive Plan (the “2026 Equity Plan”), which became effective as of such date.”
16. May 27, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for American Tower

For American Tower, OQRO holds 4 insider filings (SEC Form 4 or Form 144), 1 Congress trade report and 42 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its AMT page.

Other recent filings by Robert Joseph Meyer, SVP & Chief Accounting Officer

• SEC Form 4 at American Tower (AMT)Jul 31, 2026
• SEC Form 4 at American Tower (AMT)Feb 28, 2025
• SEC Form 4 at American Tower (AMT)Feb 28, 2025

The full history of Robert Joseph Meyer, SVP & Chief Accounting Officer is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at American Tower

• SEC Form 4Aug 25, 2026
• SEC Form 13F-HRAug 18, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its AMT page.