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AMERICAN TOWER CORP /MA/: filings

Every AMERICAN TOWER CORP /MA/ annual and quarterly report in the SEC record with the published financial measures it tagged, 69 filings, each linked to its SEC index.

Filings with published measures

Each page shows what one filing reported, as tagged in that filing, with the periods it covered. Later filings can restate a value; the company overview shows the latest-filed value per period.

FormFiledFiscal periodMeasuresFactsSEC accession
10-Q2026-07-28fiscal Q2 2026511440001053507-26-000133
10-Q2026-04-28fiscal Q1 2026511080001053507-26-000099
10-K2026-02-24fiscal FY 2025531400001053507-26-000035
10-Q2025-10-28fiscal Q3 2025501420001053507-25-000149
10-Q2025-07-29fiscal Q2 2025501420001053507-25-000120
10-Q2025-04-29fiscal Q1 2025501060001053507-25-000102
10-K2025-02-25fiscal FY 2024541830001053507-25-000025
10-Q2024-10-29fiscal Q3 2024501420001053507-24-000130
10-Q2024-07-30fiscal Q2 2024501420001053507-24-000105
10-Q2024-04-30fiscal Q1 2024501060001053507-24-000084
10-K2024-02-27fiscal FY 2023541430001053507-24-000011
10-Q2023-10-26fiscal Q3 2023511440001053507-23-000161
10-Q2023-07-27fiscal Q2 2023511440001053507-23-000142
10-Q2023-04-26fiscal Q1 2023501060001053507-23-000114
10-K2023-02-23fiscal FY 2022551440001053507-23-000023
10-Q2022-10-27fiscal Q3 2022521480001053507-22-000118
10-Q2022-07-28fiscal Q2 2022521480001053507-22-000099
10-Q2022-04-27fiscal Q1 2022511080001053507-22-000068
10-K2022-02-25fiscal FY 2021551440001053507-22-000017
10-Q2021-10-28fiscal Q3 2021531520001053507-21-000159
10-Q2021-07-29fiscal Q2 2021531520001053507-21-000129
10-Q2021-04-29fiscal Q1 2021511080001053507-21-000085
10-K2021-02-25fiscal FY 2020541400001053507-21-000026
10-Q2020-10-29fiscal Q3 2020511480001053507-20-000161
10-Q2020-07-30fiscal Q2 2020511480001053507-20-000129
10-Q2020-04-29fiscal Q1 2020511080001053507-20-000093
10-K2020-02-25fiscal FY 2019561950001053507-20-000028
10-Q2019-10-31fiscal Q3 2019541510001053507-19-000134
10-Q2019-07-31fiscal Q2 2019541530001053507-19-000105
10-Q2019-05-03fiscal Q1 2019521080001053507-19-000073
10-K2019-02-27fiscal Q4 2018531920001053507-19-000012
10-Q2018-10-30fiscal Q3 2018451280001053507-18-000049
10-Q2018-07-31fiscal Q2 2018441240001053507-18-000038
10-Q2018-05-02fiscal Q1 201844930001053507-18-000026
10-K2018-02-28fiscal Q4 2017471690001053507-18-000006
10-Q2017-10-31fiscal Q3 2017401170001053507-17-000056
10-Q2017-07-27fiscal Q2 2017401170001053507-17-000045
10-Q2017-04-27fiscal Q1 201740850001053507-17-000031
10-K2017-02-27fiscal FY 2016451630001053507-17-000009
10-Q2016-10-27fiscal Q3 2016401150001053507-16-000057
10-Q2016-07-28fiscal Q2 2016401150001053507-16-000048
10-Q2016-04-29fiscal Q1 201641870001053507-16-000032
10-K2016-02-26fiscal FY 2015441610001053507-16-000018
10-Q2015-10-29fiscal Q3 2015391190001628280-15-008027
10-Q2015-07-29fiscal Q2 2015391190001193125-15-268479
10-Q2015-04-30fiscal Q1 201539850001193125-15-162716
10-K2015-02-24fiscal FY 2014441630001193125-15-059026
10-Q2014-10-30fiscal Q3 2014391190001193125-14-389764
10-Q2014-07-30fiscal Q2 2014391190001193125-14-287223
10-Q2014-05-01fiscal Q1 201438830001193125-14-177280
10-K2014-02-26fiscal FY 2013431500001193125-14-068001
10-Q2013-10-30fiscal Q3 2013381110001193125-13-418850
10-Q2013-07-31fiscal Q2 2013381100001193125-13-312703
10-Q2013-05-01fiscal Q1 201341860001193125-13-192592
10-K2013-02-27fiscal FY 2012461580001193125-13-077821
10-Q2012-10-31fiscal Q3 2012401120001193125-12-443907
10-Q2012-08-02fiscal Q2 2012401120001193125-12-332009
10-Q2012-05-03fiscal Q1 201240840001193125-12-208966
10-K2012-02-29fiscal FY 2011451560001193125-12-086162
10-Q2011-11-02fiscal Q3 2011351000001193125-11-291078
10-Q2011-08-04fiscal Q2 2011351000001193125-11-210453
10-Q2011-05-05fiscal Q1 201135740001193125-11-128578
10-K2011-02-28fiscal FY 2010411390001193125-11-050129
10-Q2010-11-05fiscal Q3 2010351000001193125-10-250228
10-Q2010-08-06fiscal Q2 2010351000001193125-10-179874
10-Q2010-05-06fiscal Q1 201034720001193125-10-111052
10-K2010-03-01fiscal FY 200936950001193125-10-044876
10-Q2009-11-05fiscal Q3 200934980001193125-09-225699
10-Q2009-08-06fiscal Q2 200931860001193125-09-167155

Inspect the source

Entity
AMERICAN TOWER CORP /MA/ / CIK 0001053507
Captured
2026-09-20T05:17:34.771Z
SEC response SHA-256
274a2cf2d92541f010690a4e13c29703d3b979fb0cc40e683f6236b218ab6048

Current SEC company facts · Download the original response snapshot (gzip) · Download the selected JSON

Every published concept a filing tagged, with the periods it covered, as reported in that filing at capture time. Forms 10-K, 10-K/A, 10-Q, 10-Q/A, 20-F, 20-F/A, 40-F, 40-F/A. A filing page needs at least 8 published concepts. Later filings can restate these values; the company history pages show the latest-filed value per period.

Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.

Use this in research

A financial period ends before its results become public. Use the filing date as a minimum availability boundary, inspect amendments, and retain the original filing vintage when testing historical signals. This latest-filed selection can contain information unavailable at the time.

These pages do not supply prices, total-return histories, corporate-action adjustments or a tradable universe. Build those inputs separately before evaluating a strategy. A profitable backtest can still reflect selection bias or costs that were left out.

Research methodology · Execution and cost assumptions · Check backtest overfitting

Build with the open-source tools

Use these accounting records as inspectable inputs. When you have constructed a return series, the validation tools can help test its statistical evidence and preserve the result with its limitations.

Read the published dataset with Python
import json
from urllib.request import urlopen

with urlopen("https://canlicapital.com/company-data/0001053507.json") as response:
    record = json.load(response)
print(record["fetched_at"])
print(record["policy"])
for concept in record["concepts"]:
    print(concept["tag"], next(iter(concept["observations"])))