Company · CIK 1053507

# AMERICAN TOWER CORP /MA/

| CIK | [1053507](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001053507) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 6798 — Real Estate Investment Trusts |
| Incorporated in | DE |
| Business address | MA |
| Listed | AMT (NYSE) |
| First annual or quarterly report | 1998-04-09 |

## Offerings

 12 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-287714 | Shelf Effective | 2025-06-02 | 2026-09-09 | 5 |
| 333-265348 | Shelf Effective | 2022-06-01 | 2025-05-21 | 11 |
| 333-231931 | Shelf Effective | 2019-06-04 | 2022-03-29 | 14 |
| 333-211829 | Shelf Effective | 2016-06-03 | 2019-03-12 | 8 |
| 333-188812 | Shelf Effective | 2013-05-23 | 2016-05-10 | 10 |
| 333-166805 | Shelf Effective | 2010-05-13 | 2013-01-03 | 6 |
| 333-109489 | Shelf Effective | 2003-10-03 | 2012-01-04 | 2 |
| 333-111632 | Shelf Effective | 2003-12-30 | 2012-01-04 | 2 |
| 333-114706 | Shelf Effective | 2004-04-22 | 2012-01-04 | 2 |
| 333-119162 | Shelf Effective | 2004-09-21 | 2012-01-04 | 2 |
| 333-126749 | Shelf Effective | 2005-07-21 | 2012-01-04 | 2 |
| 333-104800 | Shelf Dormant | 2003-04-29 | 2003-04-29 | 1 |

## Filings

 67

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2026-09-09 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312526385967/0001193125-26-385967-index.htm) Shelf takedown | 333-287714 | 0001193125-26-385967 |
| 2026-05-19 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312526229552/0001193125-26-229552-index.htm) Shelf takedown | 333-287714 | 0001193125-26-229552 |
| 2025-12-02 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312525304622/0001193125-25-304622-index.htm) Shelf takedown | 333-287714 | 0001193125-25-304622 |
| 2025-09-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312525200816/0001193125-25-200816-index.htm) Shelf takedown | 333-287714 | 0001193125-25-200816 |
| 2025-06-02 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1053507/000119312525132847/0001193125-25-132847-index.htm) Shelf registered | 333-287714 | 0001193125-25-132847 |
| 2025-05-21 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312525123578/0001193125-25-123578-index.htm) Shelf takedown | 333-265348 | 0001193125-25-123578 |
| 2025-03-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312525051549/0001193125-25-051549-index.htm) Shelf takedown | 333-265348 | 0001193125-25-051549 |
| 2024-11-18 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312524260510/0001193125-24-260510-index.htm) Shelf takedown | 333-265348 | 0001193125-24-260510 |
| 2024-05-22 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312524144376/0001193125-24-144376-index.htm) Shelf takedown | 333-265348 | 0001193125-24-144376 |
| 2024-03-04 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312524056970/0001193125-24-056970-index.htm) Shelf takedown | 333-265348 | 0001193125-24-056970 |
| 2023-09-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312523233068/0001193125-23-233068-index.htm) Shelf takedown | 333-265348 | 0001193125-23-233068 |
| 2023-05-22 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312523149985/0001193125-23-149985-index.htm) Shelf takedown | 333-265348 | 0001193125-23-149985 |
| 2023-05-09 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312523138825/0001193125-23-138825-index.htm) Shelf takedown | 333-265348 | 0001193125-23-138825 |
| 2023-02-28 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312523052510/0001193125-23-052510-index.htm) Shelf takedown | 333-265348 | 0001193125-23-052510 |
| 2022-06-02 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312522165701/0001193125-22-165701-index.htm) Shelf takedown | 333-265348 | 0001193125-22-165701 |
| 2022-06-01 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1053507/000119312522165192/0001193125-22-165192-index.htm) Shelf registered | 333-265348 | 0001193125-22-165192 |
| 2022-03-29 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312522087501/0001193125-22-087501-index.htm) Shelf takedown | 333-231931 | 0001193125-22-087501 |
| 2021-09-29 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312521285945/0001193125-21-285945-index.htm) Shelf takedown | 333-231931 | 0001193125-21-285945 |
| 2021-09-23 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312521280172/0001193125-21-280172-index.htm) Shelf takedown | 333-231931 | 0001193125-21-280172 |
| 2021-05-18 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312521164458/0001193125-21-164458-index.htm) Shelf takedown | 333-231931 | 0001193125-21-164458 |
| 2021-05-05 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312521150723/0001193125-21-150723-index.htm) Shelf takedown | 333-231931 | 0001193125-21-150723 |
| 2021-03-24 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312521091954/0001193125-21-091954-index.htm) Shelf takedown | 333-231931 | 0001193125-21-091954 |
| 2020-11-17 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312520295548/0001193125-20-295548-index.htm) Shelf takedown | 333-231931 | 0001193125-20-295548 |
| 2020-09-23 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312520251879/0001193125-20-251879-index.htm) Shelf takedown | 333-231931 | 0001193125-20-251879 |
| 2020-09-02 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312520237558/0001193125-20-237558-index.htm) Shelf takedown | 333-231931 | 0001193125-20-237558 |
| 2020-06-01 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312520156619/0001193125-20-156619-index.htm) Shelf takedown | 333-231931 | 0001193125-20-156619 |
| 2020-01-07 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312520002613/0001193125-20-002613-index.htm) Shelf takedown | 333-231931 | 0001193125-20-002613 |
| 2019-09-30 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312519258181/0001193125-19-258181-index.htm) Shelf takedown | 333-231931 | 0001193125-19-258181 |
| 2019-06-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312519168758/0001193125-19-168758-index.htm) Shelf takedown | 333-231931 | 0001193125-19-168758 |
| 2019-06-04 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1053507/000119312519164637/0001193125-19-164637-index.htm) Shelf registered | 333-231931 | 0001193125-19-164637 |
| 2019-03-12 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312519071425/0001193125-19-071425-index.htm) Shelf takedown | 333-211829 | 0001193125-19-071425 |
| 2018-05-15 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312518163276/0001193125-18-163276-index.htm) Shelf takedown | 333-211829 | 0001193125-18-163276 |
| 2017-12-05 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312517360899/0001193125-17-360899-index.htm) Shelf takedown | 333-211829 | 0001193125-17-360899 |
| 2017-06-27 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312517214161/0001193125-17-214161-index.htm) Shelf takedown | 333-211829 | 0001193125-17-214161 |
| 2017-03-30 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312517102631/0001193125-17-102631-index.htm) Shelf takedown | 333-211829 | 0001193125-17-102631 |
| 2016-12-05 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312516785212/0001193125-16-785212-index.htm) Shelf takedown | 333-211829 | 0001193125-16-785212 |
| 2016-09-28 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312516722481/0001193125-16-722481-index.htm) Shelf takedown | 333-211829 | 0001193125-16-722481 |
| 2016-06-03 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1053507/000119312516612693/0001193125-16-612693-index.htm) Shelf registered | 333-211829 | 0001193125-16-612693 |
| 2016-05-10 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312516584770/0001193125-16-584770-index.htm) Shelf takedown | 333-188812 | 0001193125-16-584770 |
| 2016-01-08 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312516424138/0001193125-16-424138-index.htm) Shelf takedown | 333-188812 | 0001193125-16-424138 |
| 2015-05-04 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312515167683/0001193125-15-167683-index.htm) Shelf takedown | 333-188812 | 0001193125-15-167683 |
| 2015-02-24 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312515059036/0001193125-15-059036-index.htm) Shelf takedown | 333-188812 | 0001193125-15-059036 |
| 2015-02-24 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312515059032/0001193125-15-059032-index.htm) Shelf takedown | 333-188812 | 0001193125-15-059032 |
| 2014-08-04 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312514292628/0001193125-14-292628-index.htm) Shelf takedown | 333-188812 | 0001193125-14-292628 |
| 2014-05-05 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312514182628/0001193125-14-182628-index.htm) Shelf takedown | 333-188812 | 0001193125-14-182628 |
| 2014-01-07 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312514003571/0001193125-14-003571-index.htm) Shelf takedown | 333-188812 | 0001193125-14-003571 |
| 2013-08-14 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312513333822/0001193125-13-333822-index.htm) Shelf takedown | 333-188812 | 0001193125-13-333822 |
| 2013-05-23 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1053507/000119312513233655/0001193125-13-233655-index.htm) Shelf registered | 333-188812 | 0001193125-13-233655 |
| 2013-01-03 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312513001702/0001193125-13-001702-index.htm) Shelf takedown | 333-166805 | 0001193125-13-001702 |
| 2012-03-07 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312512100316/0001193125-12-100316-index.htm) Shelf takedown | 333-166805 | 0001193125-12-100316 |
| 2012-01-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1053507/999999999512000076/9999999995-12-000076-index.htm) Declared effective | 333-126749 | 9999999995-12-000076 |
| 2012-01-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1053507/999999999512000075/9999999995-12-000075-index.htm) Declared effective | 333-119162 | 9999999995-12-000075 |
| 2012-01-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1053507/999999999512000074/9999999995-12-000074-index.htm) Declared effective | 333-114706 | 9999999995-12-000074 |
| 2012-01-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1053507/999999999512000073/9999999995-12-000073-index.htm) Declared effective | 333-111632 | 9999999995-12-000073 |
| 2012-01-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1053507/999999999512000072/9999999995-12-000072-index.htm) Declared effective | 333-109489 | 9999999995-12-000072 |
| 2011-10-03 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312511262057/0001193125-11-262057-index.htm) Shelf takedown | 333-166805 | 0001193125-11-262057 |
| 2010-12-02 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312510272646/0001193125-10-272646-index.htm) Shelf takedown | 333-166805 | 0001193125-10-272646 |
| 2010-08-11 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312510185494/0001193125-10-185494-index.htm) Shelf takedown | 333-166805 | 0001193125-10-185494 |
| 2010-05-13 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/1053507/000119312510119082/0001193125-10-119082-index.htm) Shelf registered | 333-166805 | 0001193125-10-119082 |
| 2009-12-29 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1053507/999999999509003633/9999999995-09-003633-index.htm) Declared effective | 333-163777 | 9999999995-09-003633 |
| 2005-07-21 | [S-3](https://www.sec.gov/Archives/edgar/data/1053507/000119312505145657/0001193125-05-145657-index.htm) Shelf registered | 333-126749 | 0001193125-05-145657 |
| 2004-09-21 | [S-3](https://www.sec.gov/Archives/edgar/data/1053507/000119312504159586/0001193125-04-159586-index.htm) Shelf registered | 333-119162 | 0001193125-04-159586 |
| 2004-04-22 | [S-3](https://www.sec.gov/Archives/edgar/data/1053507/000119312504066982/0001193125-04-066982-index.htm) Shelf registered | 333-114706 | 0001193125-04-066982 |
| 2003-12-30 | [S-3](https://www.sec.gov/Archives/edgar/data/1053507/000119312503100449/0001193125-03-100449-index.htm) Shelf registered | 333-111632 | 0001193125-03-100449 |
| 2003-10-03 | [S-3](https://www.sec.gov/Archives/edgar/data/1053507/000119312503057904/0001193125-03-057904-index.htm) Shelf registered | 333-109489 | 0001193125-03-057904 |
| 2003-07-29 | [424B5](https://www.sec.gov/Archives/edgar/data/1053507/000119312503025415/0001193125-03-025415-index.htm) Shelf takedown | 333-37988 | 0001193125-03-025415 |
| 2003-04-29 | [S-3](https://www.sec.gov/Archives/edgar/data/1053507/000092701603002147/0000927016-03-002147-index.htm) Shelf registered | 333-104800 | 0000927016-03-002147 |

[All filings of this company](https://equitycapital.markets/filings?cik=1053507) · [CSV](https://equitycapital.markets/filings.csv?cik=1053507)

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Source page: https://equitycapital.markets/company/1053507 · Data: U.S. SEC EDGAR · CC BY 4.0