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AMERICAN TOWER CORP /MA/ (AMT) reporting calendar

AMERICAN TOWER CORP /MA/ files periodic reports with the SEC as AMT on NYSE. Atlas tracks 37 filed reports for this issuer, each linked to its original EDGAR accession.

Next window
15 Jul 2026 – 12 Aug 2026
Latest report
10-Q
Period ended
31 Mar 2026
Filed
28 Apr 2026
Reports on record
37

How this window is derived. Derived from this issuer's own filing history: 9 periods at a median 91-day cadence, filed a median 29 days after period end. The SEC does not publish forward reporting dates and Atlas does not estimate one.

Filed periodic reports

FormPeriod endedFiledLagSEC accession
10-Q31 Mar 202628 Apr 202628 days0001053507-26-000099
10-K31 Dec 202524 Feb 202655 days0001053507-26-000035
10-Q30 Sep 202528 Oct 202528 days0001053507-25-000149
10-Q30 Jun 202529 Jul 202529 days0001053507-25-000120
10-Q31 Mar 202529 Apr 202529 days0001053507-25-000102
10-K31 Dec 202425 Feb 202556 days0001053507-25-000025
10-Q30 Sep 202429 Oct 202429 days0001053507-24-000130
10-Q30 Jun 202430 Jul 202430 days0001053507-24-000105
10-Q31 Mar 202430 Apr 202430 days0001053507-24-000084
10-K31 Dec 202327 Feb 202458 days0001053507-24-000011
10-Q30 Sep 202326 Oct 202326 days0001053507-23-000161
10-Q30 Jun 202327 Jul 202327 days0001053507-23-000142
10-Q31 Mar 202326 Apr 202326 days0001053507-23-000114
10-K31 Dec 202223 Feb 202354 days0001053507-23-000023
10-Q30 Sep 202227 Oct 202227 days0001053507-22-000118
10-Q30 Jun 202228 Jul 202228 days0001053507-22-000099
10-Q31 Mar 202227 Apr 202227 days0001053507-22-000068
10-K31 Dec 202125 Feb 202256 days0001053507-22-000017
10-Q30 Sep 202128 Oct 202128 days0001053507-21-000159
10-Q30 Jun 202129 Jul 202129 days0001053507-21-000129
10-Q31 Mar 202129 Apr 202129 days0001053507-21-000085
10-K31 Dec 202025 Feb 202156 days0001053507-21-000026
10-Q30 Sep 202029 Oct 202029 days0001053507-20-000161
10-Q30 Jun 202030 Jul 202030 days0001053507-20-000129
10-Q31 Mar 202029 Apr 202029 days0001053507-20-000093
10-K31 Dec 201925 Feb 202056 days0001053507-20-000028
10-Q30 Sep 201931 Oct 201931 days0001053507-19-000134
10-Q30 Jun 201931 Jul 201931 days0001053507-19-000105
10-Q31 Mar 20193 May 201933 days0001053507-19-000073
10-K31 Dec 201827 Feb 201958 days0001053507-19-000012
10-Q30 Sep 201830 Oct 201830 days0001053507-18-000049
10-Q30 Jun 201831 Jul 201831 days0001053507-18-000038
10-Q31 Mar 20182 May 201832 days0001053507-18-000026
10-K31 Dec 201728 Feb 201859 days0001053507-18-000006
10-Q30 Sep 201731 Oct 201731 days0001053507-17-000056
10-Q30 Jun 201727 Jul 201727 days0001053507-17-000045
10-Q31 Mar 201727 Apr 201727 days0001053507-17-000031

Source: SEC EDGAR company submissions for CIK 0001053507. Atlas publishes filed facts only. The SEC does not publish forward reporting dates, so no announced future date is claimed here.