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American Tower Corp SEC Filings
What American Tower Corp has told the SEC happened, by the 8-K items and forms it filed under: when it reported results, who joined or left, what it bought or sold, and whether its auditor or its accounts ever changed.
AMT overview →Filings on file
187
since Sep 30, 2016
Warning signs
0
none filed
Last results
Jul 28, 2026
8-K item 2.02
Industry
Real Estate Investment Trusts
SIC 6798
Newest first
Each label is a form type or an 8-K item as filed; each row links to the filing.
| Filed | What it reports | Document |
|---|---|---|
| Sep 18, 2026 | Executive or director change 8-K | Read ↗ |
| Sep 14, 2026 | Material agreementNew debt 8-K | Read ↗ |
| Jul 28, 2026 | Quarterly report 10-Q | Read ↗ |
| Jul 28, 2026 | Results announced 8-K | Read ↗ |
| May 27, 2026 | Material agreementNew debt 8-K | Read ↗ |
| May 22, 2026 | Delisting 25-NSE | Read ↗ |
| May 21, 2026 | Executive or director changeShareholder vote 8-K | Read ↗ |
| May 7, 2026 | Material agreementNew debt 8-K | Read ↗ |
| Apr 28, 2026 | Quarterly report 10-Q | Read ↗ |
| Apr 28, 2026 | Results announced 8-K | Read ↗ |
| Mar 10, 2026 | Executive or director change 8-K | Read ↗ |
| Feb 27, 2026 | Executive or director change 8-K | Read ↗ |
| Feb 24, 2026 | Annual report 10-K | Read ↗ |
| Feb 24, 2026 | Results announced 8-K | Read ↗ |
| Jan 29, 2026 | Executive or director change 8-K | Read ↗ |
| Dec 5, 2025 | Material agreementNew debt 8-K | Read ↗ |
| Nov 7, 2025 | Executive or director change 8-K | Read ↗ |
| Oct 28, 2025 | Quarterly report 10-Q | Read ↗ |
| Oct 28, 2025 | Results announced 8-K | Read ↗ |
| Sep 18, 2025 | Executive or director change 8-K | Read ↗ |
| Sep 16, 2025 | Material agreementNew debt 8-K | Read ↗ |
| Aug 25, 2025 | Executive or director change 8-K | Read ↗ |
| Jul 29, 2025 | Quarterly report 10-Q | Read ↗ |
| Jul 29, 2025 | Results announced 8-K | Read ↗ |
| May 30, 2025 | Material agreementNew debt 8-K | Read ↗ |
| May 15, 2025 | Shareholder vote 8-K | Read ↗ |
| Apr 29, 2025 | Quarterly report 10-Q | Read ↗ |
| Apr 29, 2025 | Results announced 8-K | Read ↗ |
| Apr 4, 2025 | Delisting 25-NSE | Read ↗ |
| Mar 20, 2025 | Executive or director change 8-K | Read ↗ |
| Mar 14, 2025 | Material agreementNew debt 8-K | Read ↗ |
| Mar 5, 2025 | Executive or director change 8-K | Read ↗ |
| Feb 25, 2025 | Annual report 10-K | Read ↗ |
| Feb 25, 2025 | Results announced 8-K | Read ↗ |
| Feb 5, 2025 | Executive or director change 8-K | Read ↗ |
| Jan 28, 2025 | Material agreementNew debt 8-K | Read ↗ |
| Jan 7, 2025 | Executive or director change 8-K | Read ↗ |
| Nov 21, 2024 | Material agreementNew debt 8-K | Read ↗ |
| Oct 31, 2024 | Executive or director change 8-K | Read ↗ |
| Oct 29, 2024 | Quarterly report 10-Q | Read ↗ |
| Oct 29, 2024 | Results announced 8-K | Read ↗ |
| Jul 30, 2024 | Quarterly report 10-Q | Read ↗ |
| Jul 30, 2024 | Results announced 8-K | Read ↗ |
| May 29, 2024 | Material agreementNew debt 8-K | Read ↗ |
| May 24, 2024 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Apr 30, 2024 | Quarterly report 10-Q | Read ↗ |
| Apr 30, 2024 | Results announced 8-K | Read ↗ |
| Mar 14, 2024 | Executive or director change 8-K | Read ↗ |
| Mar 7, 2024 | Material agreementNew debt 8-K | Read ↗ |
| Mar 1, 2024 | Executive or director change 8-K | Read ↗ |
| Feb 27, 2024 | Annual report 10-K | Read ↗ |
| Feb 27, 2024 | Results announced 8-K | Read ↗ |
| Feb 7, 2024 | Executive or director change 8-K | Read ↗ |
| Oct 26, 2023 | Quarterly report 10-Q | Read ↗ |
| Oct 26, 2023 | Results announced 8-K | Read ↗ |
| Sep 15, 2023 | Material agreementNew debt 8-K | Read ↗ |
| Jul 27, 2023 | Quarterly report 10-Q | Read ↗ |
| Jul 27, 2023 | Results announced 8-K | Read ↗ |
| Jun 29, 2023 | Material agreementNew debt 8-K | Read ↗ |
| May 25, 2023 | Material agreementNew debt 8-K | Read ↗ |
| May 25, 2023 | Shareholder vote 8-K | Read ↗ |
| May 16, 2023 | Material agreementNew debt 8-K | Read ↗ |
| Apr 26, 2023 | Quarterly report 10-Q | Read ↗ |
| Apr 26, 2023 | Results announced 8-K | Read ↗ |
| Mar 31, 2023 | Executive or director change 8-K | Read ↗ |
| Mar 13, 2023 | Material agreementNew debt 8-K | Read ↗ |
| Mar 9, 2023 | Executive or director change 8-K | Read ↗ |
| Mar 3, 2023 | Material agreementNew debt 8-K | Read ↗ |
| Mar 2, 2023 | Executive or director change 8-K | Read ↗ |
| Feb 23, 2023 | Annual report 10-K | Read ↗ |
| Feb 23, 2023 | Results announced 8-K | Read ↗ |
| Oct 27, 2022 | Quarterly report 10-Q | Read ↗ |
| Oct 27, 2022 | Results announced 8-K | Read ↗ |
| Oct 3, 2022 | Executive or director change 8-K | Read ↗ |
| Aug 11, 2022 | Material agreement 8-K | Read ↗ |
| Jul 28, 2022 | Quarterly report 10-Q | Read ↗ |
| Jul 28, 2022 | Results announced 8-K | Read ↗ |
| Jun 7, 2022 | Material agreement 8-K | Read ↗ |
| May 19, 2022 | Executive or director changeShareholder vote 8-K | Read ↗ |
| Apr 27, 2022 | Quarterly report 10-Q | Read ↗ |
| Apr 27, 2022 | Results announced 8-K | Read ↗ |
| Apr 1, 2022 | Material agreementNew debt 8-K | Read ↗ |
| Mar 11, 2022 | Executive or director change 8-K | Read ↗ |
| Mar 1, 2022 | Executive or director change 8-K | Read ↗ |
| Feb 25, 2022 | Annual report 10-K | Read ↗ |
| Feb 24, 2022 | Results announced 8-K | Read ↗ |
| Dec 28, 2021 | Acquisition or sale completed 8-K | Read ↗ |
| Dec 16, 2021 | Executive or director change 8-K | Read ↗ |
| Dec 8, 2021 | Material agreementNew debt 8-K | Read ↗ |
| Nov 29, 2021 | Tender offer SC TO-T | Read ↗ |
| Nov 15, 2021 | Material agreement 8-K | Read ↗ |
| Oct 28, 2021 | Quarterly report 10-Q | Read ↗ |
| Oct 28, 2021 | Results announced 8-K | Read ↗ |
| Oct 5, 2021 | Material agreementNew debt 8-K | Read ↗ |
| Sep 27, 2021 | Material agreementNew debt 8-K | Read ↗ |
| Jul 29, 2021 | Quarterly report 10-Q | Read ↗ |
| Jul 29, 2021 | Results announced 8-K | Read ↗ |
| May 27, 2021 | Shareholder vote 8-K | Read ↗ |
| May 21, 2021 | Material agreementNew debt 8-K | Read ↗ |
| May 10, 2021 | Material agreement 8-K | Read ↗ |
| Apr 29, 2021 | Quarterly report 10-Q | Read ↗ |
| Apr 29, 2021 | Results announced 8-K | Read ↗ |
| Mar 29, 2021 | Material agreementNew debt 8-K | Read ↗ |
| Mar 3, 2021 | Executive or director change 8-K | Read ↗ |
| Feb 25, 2021 | Annual report 10-K | Read ↗ |
| Feb 25, 2021 | Results announced 8-K | Read ↗ |
| Feb 10, 2021 | Material agreementNew debt 8-K | Read ↗ |
| Jan 19, 2021 | Executive or director change 8-K | Read ↗ |
| Jan 13, 2021 | Material agreementNew debt 8-K | Read ↗ |
| Nov 20, 2020 | Material agreementNew debt 8-K | Read ↗ |
| Nov 6, 2020 | Executive or director change 8-K | Read ↗ |
| Nov 5, 2020 | Material agreement 8-K | Read ↗ |
| Oct 29, 2020 | Quarterly report 10-Q | Read ↗ |
| Oct 29, 2020 | Results announced 8-K | Read ↗ |
| Sep 28, 2020 | Material agreementNew debt 8-K | Read ↗ |
| Sep 10, 2020 | Material agreementNew debt 8-K | Read ↗ |
| Aug 5, 2020 | Material agreement 8-K | Read ↗ |
| Jul 30, 2020 | Quarterly report 10-Q | Read ↗ |
| Jul 30, 2020 | Results announced 8-K | Read ↗ |
| Jun 3, 2020 | Material agreementNew debt 8-K | Read ↗ |
| May 19, 2020 | Shareholder vote 8-K | Read ↗ |
| Apr 29, 2020 | Quarterly report 10-Q | Read ↗ |
| Apr 29, 2020 | Results announced 8-K | Read ↗ |
| Apr 16, 2020 | Executive or director change 8-K/A | Read ↗ |
| Apr 3, 2020 | Material agreementNew debt 8-K | Read ↗ |
| Mar 16, 2020 | Executive or director change 8-K | Read ↗ |
| Mar 2, 2020 | Executive or director change 8-K | Read ↗ |
| Feb 25, 2020 | Annual report 10-K | Read ↗ |
| Feb 25, 2020 | Results announced 8-K | Read ↗ |
| Feb 13, 2020 | Material agreementNew debt 8-K | Read ↗ |
| Jan 10, 2020 | Material agreementNew debt 8-K | Read ↗ |
| Dec 20, 2019 | Material agreementNew debt 8-K | Read ↗ |
| Dec 12, 2019 | Executive or director change 8-K | Read ↗ |
| Oct 31, 2019 | Quarterly report 10-Q | Read ↗ |
| Oct 31, 2019 | Results announced 8-K | Read ↗ |
| Oct 3, 2019 | Material agreementNew debt 8-K | Read ↗ |
| Sep 16, 2019 | Executive or director change 8-K | Read ↗ |
| Jul 31, 2019 | Quarterly report 10-Q | Read ↗ |
| Jul 31, 2019 | Results announced 8-K | Read ↗ |
| Jun 13, 2019 | Material agreementNew debt 8-K | Read ↗ |
| May 30, 2019 | Material agreement 8-K | Read ↗ |
| May 22, 2019 | Shareholder vote 8-K | Read ↗ |
| May 17, 2019 | Executive or director change 8-K | Read ↗ |
| May 3, 2019 | Quarterly report 10-Q | Read ↗ |
| May 3, 2019 | Results announced 8-K | Read ↗ |
| Mar 15, 2019 | Material agreementNew debt 8-K | Read ↗ |
| Mar 4, 2019 | Executive or director change 8-K | Read ↗ |
| Feb 27, 2019 | Annual report 10-K | Read ↗ |
| Feb 27, 2019 | Results announced 8-K | Read ↗ |
| Feb 14, 2019 | Material agreementNew debt 8-K | Read ↗ |
| Nov 28, 2018 | Material agreement 8-K | Read ↗ |
| Oct 30, 2018 | Quarterly report 10-Q | Read ↗ |
| Oct 30, 2018 | Results announced 8-K | Read ↗ |
| Sep 17, 2018 | Executive or director change 8-K | Read ↗ |
| Jul 31, 2018 | Quarterly report 10-Q | Read ↗ |
| Jul 31, 2018 | Executive or director change 8-K | Read ↗ |
| Jul 31, 2018 | Results announced 8-K | Read ↗ |
| May 24, 2018 | Shareholder vote 8-K | Read ↗ |
| May 22, 2018 | Material agreementNew debt 8-K | Read ↗ |
| May 2, 2018 | Quarterly report 10-Q | Read ↗ |
| May 1, 2018 | Results announced 8-K | Read ↗ |
| Mar 29, 2018 | Material agreementNew debt 8-K | Read ↗ |
| Mar 5, 2018 | Executive or director change 8-K | Read ↗ |
| Feb 28, 2018 | Annual report 10-K | Read ↗ |
| Feb 27, 2018 | Results announced 8-K | Read ↗ |
| Feb 15, 2018 | Delisting 25-NSE | Read ↗ |
| Dec 15, 2017 | Material agreement 8-K | Read ↗ |
| Dec 8, 2017 | Material agreementNew debt 8-K | Read ↗ |
| Oct 31, 2017 | Quarterly report 10-Q | Read ↗ |
| Oct 31, 2017 | Results announced 8-K | Read ↗ |
| Jul 27, 2017 | Quarterly report 10-Q | Read ↗ |
| Jul 27, 2017 | Results announced 8-K | Read ↗ |
| Jun 30, 2017 | Material agreementNew debt 8-K | Read ↗ |
| Jun 14, 2017 | Executive or director change 8-K | Read ↗ |
| Jun 1, 2017 | Shareholder vote 8-K | Read ↗ |
| May 16, 2017 | Delisting 25-NSE | Read ↗ |
| Apr 27, 2017 | Quarterly report 10-Q | Read ↗ |
| Apr 27, 2017 | Results announced 8-K | Read ↗ |
| Apr 6, 2017 | Material agreementNew debt 8-K | Read ↗ |
| Mar 14, 2017 | Executive or director change 8-K | Read ↗ |
| Mar 3, 2017 | Executive or director change 8-K | Read ↗ |
| Feb 27, 2017 | Annual report 10-K | Read ↗ |
| Feb 27, 2017 | Results announced 8-K | Read ↗ |
| Nov 30, 2016 | Material agreement 8-K | Read ↗ |
| Oct 27, 2016 | Quarterly report 10-Q | Read ↗ |
| Oct 27, 2016 | Results announced 8-K | Read ↗ |
| Sep 30, 2016 | Material agreementNew debt 8-K | Read ↗ |
Source: American Tower Corp's EDGAR filing history, the last ten years. The labels are the form types and 8-K item numbers the company filed under, not a reading of what it wrote — an item 5.02 can be a chief executive fired or a director retiring on schedule — so each row links to the filing.
More on AMT
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