Mailing Address 116 HUNTINGTON AVE BOSTON MA 02116
Business Address 116 HUNTINGTON AVE BOSTON MA 02116 6173757500
AMERICAN TOWER CORP /MA/ CIK#: 0001053507 (see all company filings)

SIC: 6798 - REAL ESTATE INVESTMENT TRUSTS
State location: MA | State of Inc.: DE | Fiscal Year End: 1231
formerly: AMERICAN TOWER SYSTEMS CORP (filings through 1998-05-08)
(CF Office: 05 Real Estate & Construction)
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Items 1 - 40  0001053507 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001053507-25-000087 (34 Act)  Size: 300 KB
2025-03-20 001-14195
25756761
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000084 Size: 4 KB
2025-03-19
144  Documents Report of proposed sale of securities
Acc-no: 0001972362-25-000318 (33 Act)  Size: 4 KB
2025-03-17 001-14195
25744778
8-K  Documents   Interactive Data Current report, items 1.01, 2.03, and 9.01
Acc-no: 0001193125-25-054806 (34 Act)  Size: 580 KB
2025-03-14 001-14195
25740182
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000082 Size: 8 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000080 Size: 7 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000078 Size: 8 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000076 Size: 8 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000074 Size: 8 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000072 Size: 7 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000070 Size: 7 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000068 Size: 8 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000066 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000064 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000062 Size: 5 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000060 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000058 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000056 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000054 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000052 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000050 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000048 Size: 4 KB
2025-03-12
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000046 Size: 4 KB
2025-03-12
424B2  Documents   Interactive Data Prospectus [Rule 424(b)(2)]
Acc-no: 0001193125-25-052935 (33 Act)  Size: 1 MB
2025-03-12 333-265348
25731938
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001053507-25-000044 (34 Act)  Size: 335 KB
2025-03-11 001-14195
25728291
FWP  Documents Filing under Securities Act Rules 163/433 of free writing prospectuses
Acc-no: 0001193125-25-051983 (34 Act)  Size: 21 KB
2025-03-11 333-265348
25728206
424B5  Documents Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-25-051549 (33 Act)  Size: 808 KB
2025-03-11 333-265348
25726022
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001053507-25-000042 (34 Act)  Size: 334 KB
2025-03-06 001-14195
25715478
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001053507-25-000039 (34 Act)  Size: 310 KB
2025-03-05 001-14195
25708980
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000037 Size: 5 KB
2025-03-03
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000035 Size: 5 KB
2025-03-03
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000033 Size: 5 KB
2025-03-03
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000031 Size: 5 KB
2025-03-03
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000029 Size: 6 KB
2025-02-28
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001053507-25-000027 Size: 8 KB
2025-02-28
144  Documents Report of proposed sale of securities
Acc-no: 0001972362-25-000194 (33 Act)  Size: 4 KB
2025-02-27 001-14195
25680592
144  Documents Report of proposed sale of securities
Acc-no: 0001972362-25-000177 (33 Act)  Size: 4 KB
2025-02-26 001-14195
25671172
144  Documents Report of proposed sale of securities
Acc-no: 0001972362-25-000174 (33 Act)  Size: 4 KB
2025-02-26 001-14195
25670822
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001053507-25-000025 (34 Act)  Size: 28 MB
2025-02-25 001-14195
25663412
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001053507-25-000022 (34 Act)  Size: 1 MB
2025-02-25 001-14195
25659337