AMERICAN TOWER CORP /MA/ — DEFA14A Filings
19 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by AMERICAN TOWER CORP /MA/ (AMT), sorted by most recent first. Each row links to the full filing on EdgarLookup. AMERICAN TOWER CORP /MA/ has filed 19 DEFA14A documents with the SEC since 2017. To view all SEC filings by AMERICAN TOWER CORP /MA/, see the full filings list.
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 |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0001053507-25-000094 | Apr 2, 2025 | — |
| DEFA14A | DEFA14A | 0001053507-24-000076 | Apr 10, 2024 | — |
| DEFA14A | DEFA14A | 0001053507-23-000108 | Apr 12, 2023 | — |
| DEFA14A | DEFA14A | 0001053507-22-000060 | Apr 6, 2022 | — |
| DEFA14A | DEFA14A | 0001053507-21-000077 | Apr 14, 2021 | — |
| DEFA14A | DEFA14A | 0001053507-20-000082 | Apr 6, 2020 | — |
| DEFA14A | DEFA14A | 0001193125-19-102397 | Apr 10, 2019 | — |
| DEFA14A | DEFA14A | 0001193125-18-114924 | Apr 12, 2018 | — |
| DEFA14A | DEFA14A | 0001193125-17-128093 | Apr 19, 2017 | — |
| DEFA14A | DEFA14A | 0001193125-16-551353 | Apr 22, 2016 | — |
| DEFA14A | DEFA14A | 0001193125-15-123565 | Apr 9, 2015 | — |
| DEFA14A | DEFA14A | 0001193125-14-130764 | Apr 4, 2014 | — |
| DEFA14A | NOTICE OF INTERNET AVAILABILITY | 0001193125-13-151089 | Apr 11, 2013 | — |
| DEFA14A | DEFA14A | 0001193125-12-188435 | Apr 27, 2012 | — |
| DEFA14A | DEFA14A | 0001193125-11-121867 | May 2, 2011 | — |
| DEFA14A | NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS | 0001193125-11-091363 | Apr 7, 2011 | — |
| DEFA14A | DEFA14A | 0001193125-10-074417 | Apr 1, 2010 | — |
| DEFA14A | DEFA14A | 0001193125-09-065172 | Mar 27, 2009 | — |
| DEFA14A | DEFA14A | 0001193125-08-071603 | Apr 1, 2008 | — |