American Tower Corp /MA/

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American Tower Corp /MA/
TickerAMT
CIK #0001053507
CUSIP03027X100
SectorTechnology - Communications Services, Nec
Address116 Huntington Ave, Boston, MA 02116
Source [EDGAR]
CIK Filing 2011 - 2026
[0001053507] 10-K
[0001053507] 10-Q
[0001053507] 3
[0001053507] 4
[0001053507] 5
[0001053507] 8-K
[0001053507] SC 13D
[0001053507] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Capital Management LLC American Tower Corp /MA/ [2026-04-29] 0.0
Vanguard Portfolio Management LLC American Tower Corp /MA/ [2026-04-28] 0.0
American Tower Corp /MA/ AST Spacemobile Inc [2021-04-16] 8.6
Wellington Management Group LLP American Tower Corp /MA/ [2018-02-08] 5.19
Vanguard Group Inc American Tower Corp /MA/ [2015-02-11] 5.3
FMR LLC American Tower Corp /MA/ [2013-02-14] 0.0
BlackRock Inc American Tower Corp /MA/ [2013-01-31] 7.4
BlackRock Inc American Tower Corp /MA/ [2012-02-09] 5.98
Form 3/4/5 Filer 2011 - 2026
Meyer Robert Joseph
American Tower Corp /MA/
Reeve Pamela D A
Hormats Robert D
Blanchett Paul
Dowling Ruth T
Noel Eugene M
Vondran Steven O
Chambliss Kelly C
Macnab Craig
Kalathur Rajesh
Clarke Teresa Hillary
Ray Neville R
Frank Kenneth R
Lieblein Grace
Tanner Bruce L
Reilly Eugene F
Rossi Richard C
Font Juan
Smith Rodney M
Puech Olivier
AST SpaceMobile Inc
Reed Joann A
Goel Sanjay
Dolan Raymond P
Thompson Samme L
Bartlett Thomas A
DiSanto Edmund
Sharbutt David E
Lara Gustavo
Sharma Amit
ATC TRS II LLC
Taiclet James D Jr
Hess William H
Marshall Steven C
Katz Carolyn
Dykes Ronald M
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Font Juan
Common Stock
2026-03-11 Tax withheld 928 $182.85 169,685
Rossi Richard C
Common Stock
2026-03-11 Tax withheld 684 $182.85 125,069
Noel Eugene M
Common Stock
2026-03-11 Tax withheld 719 $182.85 131,469
Dowling Ruth T
Common Stock
2026-03-11 Tax withheld 863 $182.85 157,800
Meyer Robert Joseph
Common Stock
2026-03-11 Tax withheld 684 $182.85 125,069
Vondran Steven O
Common Stock
2026-03-11 Tax withheld 2,158 $182.85 394,590
Smith Rodney M
Common Stock
2026-03-11 Tax withheld 1,295 $182.85 236,791
Smith Rodney M
Common Stock
2026-03-10 Tax withheld 12,433 $186.12 2,314,030
Vondran Steven O
Common Stock
2026-03-10 Grant 20,955 $0.00
Font Juan
Common Stock
2026-03-10 Grant 8,060 $0.00
Rossi Richard C
Common Stock
2026-03-10 Grant 6,448 $0.00
Ray Neville R
Common Stock
2026-03-10 Grant 1,209 $0.00
Hormats Robert D
Common Stock
2026-03-10 Grant 1,209 $0.00
Reilly Eugene F
Common Stock
2026-03-10 Grant 1,209 $0.00
Clarke Teresa Hillary
Common Stock
2026-03-10 Grant 1,209 $0.00
Meyer Robert Joseph
Common Stock
2026-03-10 Tax withheld 1,368 $186.12 254,612
Chambliss Kelly C
Common Stock
2026-03-10 Grant 1,209 $0.00
Vondran Steven O
Common Stock
2026-03-10 Tax withheld 15,269 $186.12 2,841,866
Macnab Craig
Common Stock
2026-03-10 Grant 1,209 $0.00
Dowling Ruth T
Common Stock
2026-03-10 Tax withheld 6,629 $186.12 1,233,789
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 1,752 409,399,185
2025-12-31 1,779 417,695,372
2025-09-30 1,803 421,797,252
2025-06-30 1,851 412,691,021
2025-03-31 1,850 406,472,290
2024-12-31 1,793 404,802,919
2024-09-30 1,849 405,618,922
2024-06-30 1,761 404,833,758
2024-03-31 1,765 429,418,509
2023-12-31 1,800 416,756,220
2023-09-30 1,625 395,913,826
2023-06-30 1,689 403,087,540
Form 13F Holdings
Firm Period DFND Voting Shares
Davenport & Company LLC [2026-06-30] SOLE 996,760 1,049,635
Sarasin & Partners LLP [2026-06-30] DFND 849,693 849,693
Commonwealth of Pennsylvania Public School Empls Retrmt SYS [2026-06-30] SOLE 848,826 848,826
Swedbank AB [2026-06-30] DFND 489,581 489,581
Douglas Lane & Associates LLC [2026-06-30] SOLE 10,060 418,541
Fort Washington Investment Advisors Inc /OH/ [2026-06-30] SOLE 357,384 366,638
Perpetual Ltd [2026-06-30] SOLE 359,598 359,598
ASR Vermogensbeheer NV [2026-06-30] DFND 217,226 217,226
Fisher Funds Management LTD [2026-06-30] SOLE 164,898 164,898
Eastern Bank [2026-06-30] SOLE 144,979 154,628
Aegon Asset Management UK PLC [2026-06-30] SOLE 148,260 150,166
Quintet Private Bank Europe SA [2026-06-30] SOLE 144,545 144,545
VERT Asset Management LLC [2026-06-30] DFND 0 138,807
Northeast Investment Management [2026-06-30] SOLE 134,816 136,188
Czech National Bank [2026-06-30] SOLE 132,611 132,611
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 10,214 129,999
PensionDanmark Pensionsforsikringsaktieselskab [2026-06-30] SOLE 0 122,509
Sound Income Strategies LLC [2026-06-30] SOLE 103,728 103,728
Barton Investment Management [2026-06-30] SOLE 0 77,038
Yousif Capital Management LLC [2026-06-30] SOLE 15,230 62,173
River Road Asset Management LLC [2026-06-30] SOLE 43,975 61,338
First Horizon Corp [2026-06-30] DFND 0 61,331
Cohen Klingenstein LLC [2026-06-30] SOLE 60,914 60,914
Edge Wealth Management LLC [2026-06-30] SOLE 59,087 59,087
PBU - The Pension Fund of Early Childhood & Youth Educators [2026-06-30] SOLE 1 57,164
Howland Capital Management LLC [2026-06-30] SOLE 48,185 54,438
Prevail Innovative Wealth Advisors LLC [2026-06-30] SOLE 0 54,433
Ausbil Investment Management Ltd [2026-06-30] SOLE 42,692 42,692
Park National Corp /OH/ [2026-06-30] SOLE 41,498 41,635
Palisade Asset Management LLC [2026-06-30] SOLE 33,055 39,775
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