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AMT US
American Tower Corp /MA/
(AMT US)
$188.97
+7.40
4.08%
Ext:
$186.45
-2.52
1.33%
(Market Closed · 00:00:02 UTC)
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SEC Filings
Select Filings
Ask in Filing
Financials
(126)
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10-Q
Q2
ended 30 Jun 2026
28 Jul
10-Q
Q1
ended 31 Mar 2026
28 Apr
10-K
FY 2025
ended 31 Dec 2025
24 Feb
10-Q
Q3
ended 30 Sept 2025
28 Oct 2025
10-Q
Q2
ended 30 Jun 2025
29 Jul 2025
10-Q
Q1
ended 31 Mar 2025
29 Apr 2025
10-K
FY 2024
ended 31 Dec 2024
25 Feb 2025
10-Q
Q2
ended 30 Jun 2024
30 Jul 2024
10-Q
Q1
ended 31 Mar 2024
30 Apr 2024
10-K
FY 2023
ended 31 Dec 2023
27 Feb 2024
10-Q
Q3
ended 30 Sept 2023
26 Oct 2023
10-Q
Q2
ended 30 Jun 2023
27 Jul 2023
10-Q
Q1
ended 31 Mar 2023
26 Apr 2023
10-K
FY 2022
ended 31 Dec 2022
23 Feb 2023
10-Q
Q3
ended 30 Sept 2022
27 Oct 2022
Events
(578)
Expand
8-K
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
18 Sep
8-K
Entry into a Material Definitive Agreement
14 Sep
8-K
Other Events
9 Sep
8-K
Results of Operations and Financial Condition
28 Jul
8-K
Other Events
4 Jun
8-K
Other Events
2 Jun
8-K
Entry into a Material Definitive Agreement
27 May
8-K
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
21 May
8-K
Other Events
19 May
8-K
Entry into a Material Definitive Agreement
7 May
8-K
Results of Operations and Financial Condition
28 Apr
8-K
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
10 Mar
8-K
Other Events
5 Mar
8-K
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
27 Feb
8-K
Results of Operations and Financial Condition
24 Feb
Insider Ownership
(1.2K)
Expand
4
Statement of changes in beneficial ownership
22 Oct
4
Statement of changes in beneficial ownership
5 Oct
3
Initial statement of beneficial ownership
23 Sep
4
Statement of changes in beneficial ownership
25 Aug
4
Statement of changes in beneficial ownership
31 Jul
4
Statement of changes in beneficial ownership
30 Jul
4
Statement of changes in beneficial ownership
3 Jun
4
Statement of changes in beneficial ownership
1 Jun
4
Statement of changes in beneficial ownership
20 May
4
Statement of changes in beneficial ownership
30 Apr
3
Initial statement of beneficial ownership
30 Apr
4
Statement of changes in beneficial ownership
12 Mar
4
Statement of changes in beneficial ownership
12 Mar
4
Statement of changes in beneficial ownership
12 Mar
4
Statement of changes in beneficial ownership
12 Mar
Beneficial Ownership
(101)
Expand
SC 13G
AMERICAN TOWER CORP /MA/
29 Apr
SC 13G
AMERICAN TOWER CORP /MA/
28 Apr
SC 13G/A
AMERICAN TOWER CORP /MA/
26 Mar
SC 13D/A
AST SpaceMobile, Inc.
11 Dec 2025
SC 13G/A
AMERICAN TOWER CORP /MA/
5 Feb 2025
SC 13G/A
AMERICAN TOWER CORP /MA/
13 Feb 2024
SC 13G/A
AMERICAN TOWER CORP /MA/
26 Jan 2024
SC 13G/A
AMERICAN TOWER CORP /MA/
9 Feb 2023
SC 13G/A
AMERICAN TOWER CORP /MA/
31 Jan 2023
SC 13G/A
AMERICAN TOWER CORP /MA/
9 Feb 2022
SC 13G/A
AMERICAN TOWER CORP /MA/
1 Feb 2022
SC 13D
AST SpaceMobile, Inc.
16 Apr 2021
SC 13G/A
AMERICAN TOWER CORP /MA/
10 Feb 2021
SC 13G/A
AMERICAN TOWER CORP /MA/
29 Jan 2021
SC 13G/A
AMERICAN TOWER CORP /MA/
11 Feb 2020
Other Ownership
(48)
Expand
144
Meyer Robert Joseph
29 Jul
144
Dowling Ruth T
28 Jul
144
Vondran Steven O
4 Mar
144
Noel Eugene M
2 Mar
144
Dowling Ruth T
27 Feb
144
Meyer Robert Joseph
27 Feb
144
Puech Olivier
25 Feb
144
Smith Rodney M
17 Feb
144
AMERICAN TOWER CORP /MA/
9 Dec 2025
144
Font Juan
31 Jul 2025
144
Goel Sanjay
17 Mar 2025
144
Meyer Robert Joseph JR
27 Feb 2025
144
REEVE PAMELA D A
26 Feb 2025
144
Meyer Robert Joseph JR
26 Feb 2025
144
Smith Rodney M
13 Feb 2025
Proxies
(75)
Expand
DEFA14A
Definitive additional materials
28 Apr
ARS
Annual report to security holders
8 Apr
DEFA14A
Definitive additional materials
8 Apr
DEF 14A
Definitive proxy statement
8 Apr
DEFA14A
Definitive additional materials
2 Apr 2025
DEF 14A
Definitive proxy statement
2 Apr 2025
ARS
Annual report to security holders
2 Apr 2025
PX14A6G
Notice of exempt solicitation
17 Apr 2024
DEFA14A
Definitive additional materials
10 Apr 2024
DEF 14A
Definitive proxy statement
10 Apr 2024
ARS
Annual report to security holders
10 Apr 2024
ARS
Annual report to security holders
12 Apr 2023
DEFA14A
Definitive additional materials
12 Apr 2023
DEF 14A
Definitive proxy statement
12 Apr 2023
DEF 14A
Definitive proxy statement
6 Apr 2022
Registrations
(376)
Expand
424B2
Prospectus filing (Rule 424(b)(2))
10 Sep
FWP
Free writing prospectus
9 Sep
424B5
Prospectus filing (Rule 424(b)(5))
9 Sep
8-A12B
Registration of securities (Section 12(b))
27 May
S-8
Registration statement (employee benefit plan)
26 May
25-NSE
Notification of removal from listing
22 May
424B2
Prospectus filing (Rule 424(b)(2))
20 May
FWP
Free writing prospectus
19 May
424B5
Prospectus filing (Rule 424(b)(5))
19 May
424B2
Prospectus filing (Rule 424(b)(2))
3 Dec 2025
FWP
Free writing prospectus
2 Dec 2025
424B5
Prospectus filing (Rule 424(b)(5))
2 Dec 2025
424B2
Prospectus filing (Rule 424(b)(2))
12 Sep 2025
FWP
Free writing prospectus
11 Sep 2025
424B5
Prospectus filing (Rule 424(b)(5))
11 Sep 2025
Filing Review Correspondence
(8)
Expand
CORRESP
Filing review correspondence
31 Mar 2023
CORRESP
Filing review correspondence
28 Mar 2023
CORRESP
Filing review correspondence
30 Mar 2018
CORRESP
Filing review correspondence
11 May 2016
UPLOAD
Filing review upload
5 May 2009
CORRESP
Filing review correspondence
17 Apr 2009
UPLOAD
Filing review upload
3 Apr 2009
CORRESP
Filing review correspondence
31 Aug 2006
SEC Orders And Notices
(7)
Expand
EFFECT
Notice of effectiveness
4 Jan 2012
EFFECT
Notice of effectiveness
4 Jan 2012
EFFECT
Notice of effectiveness
4 Jan 2012
EFFECT
Notice of effectiveness
4 Jan 2012
EFFECT
Notice of effectiveness
4 Jan 2012
EFFECT
Notice of effectiveness
29 Dec 2009
CT ORDER
Confidential treatment order
28 May 2009
Tender Offers And Going Private
(25)
Expand
SC TO-T/A
Tender offer statement (third-party, amendment)
28 Dec 2021
SC TO-T/A
Tender offer statement (third-party, amendment)
17 Dec 2021
SC TO-T/A
Tender offer statement (third-party, amendment)
10 Dec 2021
SC TO-T/A
Tender offer statement (third-party, amendment)
7 Dec 2021
SC TO-T/A
Tender offer statement (third-party, amendment)
6 Dec 2021
SC TO-T/A
Tender offer statement (third-party, amendment)
2 Dec 2021
SC TO-T
Tender offer statement (third-party)
29 Nov 2021
SC TO-C
Tender offer statement (communication)
26 Nov 2021
SC TO-C
Tender offer statement (communication)
16 Nov 2021
SC TO-C
Tender offer statement (communication)
15 Nov 2021
SC TO-I/A
AMENDMENT NO.1 TO SCHEDULE TO
23 Feb 2007
SC TO-I
SC-TO-I
22 Jan 2007
SC TO-I/A
SC-TO-I/A
29 Dec 2006
SC TO-I
SCHEDULE -TO-I
29 Nov 2006
SC TO-I/A
SCHEDULE TO AMENDMENT #2
28 Oct 2003
Trust Indenture Filings
(4)
Expand
305B2/A
Application for qualification of indenture (amendment)
25 Jul 2000
305B2/A
Application for qualification of indenture (amendment)
25 Jul 2000
305B2
Application for qualification of indenture
25 Jul 2000
305B2
Application for qualification of indenture
25 Jul 2000
Other
(14)
Expand
CERT
CERT
8 Jun
CERT
CERT
2 Jun 2025
CERT
CERT
3 Jun 2024
CERT
CERT
23 May 2023
CERT
CERT
12 Oct 2021
CERT
CERT
27 May 2021
CERT
CERT
17 Sep 2020
CERT
CERT
24 May 2018
CERTNYS
AUTO-GENERATED PAPER DOCUMENT
11 Apr 2017
CERTNYS
AUTO-GENERATED PAPER DOCUMENT
3 Mar 2015
NO ACT
AUTO-GENERATED PAPER DOCUMENT
18 Feb 2015
CERTNYS
AUTO-GENERATED PAPER DOCUMENT
15 May 2014
NO ACT
AUTO-GENERATED PAPER DOCUMENT
30 Jan 2013
NO ACT
AUTO-GENERATED PAPER DOCUMENT
21 Mar 2012
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