AMERICAN TOWER CORP /MA/ — All Filings
1,004 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
All
10-K
10-K/A
10-Q
10-Q/A
11-K
144
15-12B
25-NSE
3
3/A
305B2
305B2/A
4
4/A
424A
424B2
424B3
424B4
424B5
424B8
425
5
8-A12B
8-K
8-K/A
ARS
CERT
CERTNYS
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFM14A
DEFR14A
EFFECT
FWP
NO ACT
NT 10-K
NT 10-Q
POS AM
POSASR
PRE 14A
PRER14A
PX14A6G
RW
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-3ASR
S-3MEF
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-C
SC TO-I
SC TO-I/A
SC TO-T
SC TO-T/A
SCHEDULE 13D/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC TO-T/A | SC TO-T/A | 0001193125-21-354107 | Dec 10, 2021 | — |
| 8-K | 8-K | 0001053507-21-000162 | Dec 8, 2021 | — |
| SC TO-T/A | SC TO-T/A | 0001193125-21-349661 | Dec 7, 2021 | — |
| SC TO-T/A | SC TO-T/A | 0001193125-21-349090 | Dec 6, 2021 | — |
| SC TO-T/A | SC TO-T/A | 0001193125-21-346799 | Dec 2, 2021 | — |
| SC TO-T | SC TO-T | 0001193125-21-341764 | Nov 29, 2021 | — |
| SC TO-C | SC TO-C | 0001193125-21-341165 | Nov 26, 2021 | — |
| 4 | FORM 4 | 0001053507-21-000160 | Nov 18, 2021 | Nov 16, 2021 |
| SC TO-C | SC TO-C | 0001193125-21-330324 | Nov 16, 2021 | — |
| 8-K | 8-K | 0001193125-21-328894 | Nov 15, 2021 | Nov 14, 2021 |
| SC TO-C | SC TO-C | 0001193125-21-328910 | Nov 15, 2021 | — |
| 8-K | 8-K | 0001053507-21-000156 | Oct 28, 2021 | — |
| 10-Q | 10-Q | 0001053507-21-000159 | Oct 28, 2021 | Sep 30, 2021 |
| 8-K | 8-K | 0001053507-21-000153 | Oct 25, 2021 | — |
| 8-K | 8-K | 0001053507-21-000151 | Oct 18, 2021 | — |
| CERT | NYSE CERTIFICATION | 0000876661-21-001470 | Oct 12, 2021 | — |
| 8-K | 8-K | 0001193125-21-292090 | Oct 5, 2021 | — |
| 8-A12B | 8-A12B | 0001053507-21-000149 | Oct 5, 2021 | — |
| 424B2 | 424B2 | 0001193125-21-288003 | Sep 30, 2021 | — |
| FWP | FWP | 0001193125-21-286773 | Sep 29, 2021 | — |
| 8-K | 8-K | 0001053507-21-000147 | Sep 29, 2021 | — |
| 424B5 | 424B5 | 0001193125-21-285945 | Sep 29, 2021 | — |
| 8-K | 8-K | 0001193125-21-284167 | Sep 27, 2021 | — |
| 424B2 | 424B2 | 0001193125-21-282235 | Sep 24, 2021 | — |
| 424B5 | 424B5 | 0001193125-21-280172 | Sep 23, 2021 | — |
| FWP | FWP | 0001193125-21-280776 | Sep 23, 2021 | — |
| 8-K | 8-K | 0001053507-21-000144 | Sep 23, 2021 | — |
| 8-K | 8-K | 0001053507-21-000142 | Sep 16, 2021 | — |
| 8-K | 8-K | 0001053507-21-000140 | Sep 14, 2021 | — |
| 4 | FORM 4 | 0001053507-21-000138 | Sep 9, 2021 | Sep 7, 2021 |
| 4 | FORM 4 | 0001053507-21-000137 | Sep 8, 2021 | Sep 4, 2021 |
| 4 | FORM 4 | 0001053507-21-000136 | Sep 8, 2021 | Sep 3, 2021 |
| 4 | FORM 4 | 0001053507-21-000135 | Aug 26, 2021 | Aug 24, 2021 |
| 4 | FORM 4 | 0001053507-21-000134 | Aug 25, 2021 | Aug 23, 2021 |
| 8-K | 8-K | 0001053507-21-000133 | Aug 16, 2021 | — |
| 4 | FORM 4 | 0001053507-21-000131 | Aug 12, 2021 | Aug 10, 2021 |
| 4 | FORM 4 | 0001053507-21-000130 | Aug 3, 2021 | Jul 30, 2021 |
| 8-K | 8-K | 0001053507-21-000127 | Jul 29, 2021 | — |
| 10-Q | 10-Q | 0001053507-21-000129 | Jul 29, 2021 | Jun 30, 2021 |
| 4 | FORM 4 | 0001053507-21-000120 | Jul 22, 2021 | Jul 20, 2021 |
| 4 | FORM 4 | 0001053507-21-000119 | Jul 14, 2021 | Jul 12, 2021 |
| 4 | FORM 4 | 0001053507-21-000118 | Jul 8, 2021 | Jul 6, 2021 |
| 4 | FORM 4 | 0001053507-21-000117 | Jul 6, 2021 | Jul 1, 2021 |
| 8-K | 8-K | 0001053507-21-000116 | Jun 16, 2021 | — |
| 4 | FORM 4 | 0001053507-21-000113 | Jun 3, 2021 | Jun 1, 2021 |
| 4 | FORM 4 | 0001053507-21-000114 | Jun 3, 2021 | Jun 1, 2021 |
| 8-K | 8-K | 0001053507-21-000111 | Jun 3, 2021 | — |
| 8-K | 8-K | 0001053507-21-000109 | Jun 1, 2021 | — |
| CERT | NYSE CERTIFICATION | 0000876661-21-000799 | May 27, 2021 | — |
| 8-K | 8-K | 0001053507-21-000107 | May 27, 2021 | May 26, 2021 |