American Tower Shares Outstanding 2012-2025 | AMT

American Tower shares outstanding history from 2012 to 2025. Shares outstanding can be defined as the number of shares held by shareholders (including insiders) assuming conversion of all convertible debt, securities, warrants and options. This metric excludes the company's treasury shares.
  • American Tower shares outstanding for the quarter ending September 30, 2025 were 0.469B, a 0.17% increase year-over-year.
  • American Tower 2024 shares outstanding were 0.468B, a 0.21% increase from 2023.
  • American Tower 2023 shares outstanding were 0.467B, a 0.95% increase from 2022.
  • American Tower 2022 shares outstanding were 0.463B, a 2.09% increase from 2021.
American Tower Annual Shares Outstanding
(Millions of Shares)
2024 468
2023 467
2022 463
2021 453
2020 446
2019 446
2018 443
2017 432
2016 429
2015 423
2014 400
2013 399
2012 399
2011 400
American Tower Quarterly Shares Outstanding
(Millions of Shares)
2025-09-30 469
2025-06-30 469
2025-03-31 469
2024-12-31 468
2024-09-30 468
2024-06-30 468
2024-03-31 468
2023-12-31 467
2023-09-30 467
2023-06-30 467
2023-03-31 467
2022-12-31 463
2022-09-30 467
2022-06-30 460
2022-03-31 457
2021-12-31 453
2021-09-30 457
2021-06-30 452
2021-03-31 446
2020-12-31 446
2020-09-30 446
2020-06-30 446
2020-03-31 446
2019-12-31 446
2019-09-30 446
2019-06-30 445
2019-03-31 445
2018-12-31 443
2018-09-30 444
2018-06-30 444
2018-03-31 439
2017-12-31 432
2017-09-30 433
2017-06-30 430
2017-03-31 430
2016-12-31 429
2016-09-30 430
2016-06-30 429
2016-03-31 428
2015-12-31 423
2015-09-30 427
2015-06-30 427
2015-03-31 409
2014-12-31 400
2014-09-30 400
2014-06-30 400
2014-03-31 399
2013-12-31 399
2013-09-30 398
2013-06-30 399
2013-03-31 400
2012-12-31 399
2012-09-30 399
2012-06-30 399
2012-03-31 398
2011-12-31 400
2011-09-30 395
2011-06-30 400
2011-03-31 402
Sector Industry Market Cap Revenue
Finance REIT - Other Equity Trusts $80.301B $10.127B
American Tower Corporation, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate. In addition to leasing space on towers, they provide customized collocation solutions through our in-building systems, outdoor distributed antenna systems and other right-of-way options, managed rooftops and services that speed network deployment. Headquartered in Boston, Massachusetts, American Tower has offices across the United States and in Argentina, Brazil, Chile, Columbia, Costa Rica, France, Germany, Ghana, India, Mexico, Nigeria, Paraguay, Peru, South Africa and Uganda.
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VICI Properties (VICI) United States $29.809B 11.87
Extra Space Storage Inc (EXR) United States $29.793B 17.20
SBA Communications (SBAC) United States $19.711B 14.12
Brookfield Infrastructure Partners LP (BIP) Bermuda $15.772B 10.43
W.P Carey (WPC) United States $14.635B 13.60
Omega Healthcare Investors (OHI) United States $13.133B 14.57
Lamar Advertising (LAMR) United States $13.126B 15.75
SEGRO (SEGXF) United Kingdom $13.082B 0.00
Gaming And Leisure Properties (GLPI) United States $12.730B 11.71
Host Hotels & Resorts (HST) United States $12.612B 9.12
Healthpeak Properties (DOC) United States $11.682B 9.14
BXP (BXP) United States $10.603B 9.73
EastGroup Properties (EGP) United States $9.773B 20.94
Alexandria Real Estate Equities (ARE) United States $9.395B 5.88
Rexford Industrial Realty (REXR) United States $9.324B 16.76
CubeSmart (CUBE) United States $8.643B 14.47
Lineage (LINE) United States $8.490B 11.10
American Healthcare REIT (AHR) United States $8.410B 28.99
CareTrust REIT (CTRE) United States $8.354B 22.01
NNN REIT (NNN) United States $7.836B 12.14
First Industrial Realty Trust (FR) United States $7.796B 20.23
Stag Industrial (STAG) United States $7.100B 15.21
Vornado Realty Trust (VNO) United States $6.578B 14.45
Terreno Realty (TRNO) United States $6.143B 23.30
Healthcare Realty Trust (HR) United States $6.080B 10.74
Ryman Hospitality Properties (RHP) United States $5.940B 11.48
Sabra Healthcare REIT (SBRA) United States $4.845B 13.04
Kilroy Realty (KRC) United States $4.594B 8.75
Cousins Properties (CUZ) United States $4.441B 9.38
OUTFRONT Media (OUT) United States $4.070B 12.76
Americold Realty Trust (COLD) United States $3.774B 9.33
National Health Investors (NHI) United States $3.705B 16.14
SL Green Realty (SLG) United States $3.471B 8.03
COPT Defense Properties (CDP) United States $3.368B 11.14
Medical Properties Trust (MPW) United States $3.224B 9.08
Highwoods Properties (HIW) United States $2.994B 7.94
Apple Hospitality REIT (APLE) United States $2.941B 8.12
Keppel REIT (KREVF) Singapore $2.827B 0.00
Derwent Valley Holdings Plc (DWVYF) United Kingdom $2.726B 0.00
Four Corners Property Trust (FCPT) United States $2.570B 13.69
National Storage Affiliates Trust (NSA) United States $2.465B 14.17
Park Hotels & Resorts (PK) United States $2.279B 6.20
InvenTrust Properties (IVT) United States $2.225B 15.93
CoreCivic (CXW) United States $2.111B 10.56
Global Net Lease (GNL) United States $1.982B 8.14
DiamondRock Hospitality (DRH) United States $1.890B 8.67
Douglas Emmett (DEI) United States $1.859B 7.45
Smartstop Self Storage REIT Inc (SMA) United States $1.798B 0.00
Sunstone Hotel Investors (SHO) United States $1.757B 11.28
LTC Properties (LTC) United States $1.693B 12.98
Getty Realty (GTY) United States $1.658B 11.97
Alexander & Baldwin Holdings (ALEX) United States $1.508B 14.50
Paramount (PGRE) United States $1.465B 9.85
Innovative Industrial Properties (IIPR) United States $1.443B 6.80
NETSTREIT (NTST) United States $1.432B 13.19
Xenia Hotels & Resorts (XHR) United States $1.409B 8.74
Pebblebrook Hotel Trust (PEB) United States $1.396B 8.09
Diversified Healthcare Trust (DHC) United States $1.315B 27.15
Sila Realty Trust (SILA) United States $1.309B 10.94
Alexander's (ALX) United States $1.171B 16.49
RLJ Lodging Trust (RLJ) United States $1.165B 5.55
Empire State Realty Trust (ESRT) United States $1.091B 7.28
Piedmont Realty Trust (PDM) United States $1.046B 5.83
Easterly Government Properties (DEA) United States $1.031B 7.57
JBG SMITH Properties (JBGS) United States $1.010B 29.93
Plymouth Industrial REIT (PLYM) United States $0.977B 11.94
Whitestone REIT (WSR) United States $0.709B 13.23
CTO Realty Growth (CTO) United States $0.595B 9.42
Universal Health Realty Income Trust (UHT) United States $0.552B 11.56
Gladstone Commercial (GOOD) United States $0.547B 8.13
Hudson Pacific Properties (HPP) United States $0.545B 5.13
Summit Hotel Properties (INN) United States $0.516B 5.51
Brandywine Realty Trust (BDN) United States $0.511B 4.74
Peakstone Realty Trust (PKST) United States $0.507B 5.86
Community Healthcare Trust (CHCT) United States $0.480B 7.80
Global Medical REIT (GMRE) United States $0.473B 7.90
One Liberty Properties (OLP) United States $0.452B 10.82
Farmland Partners (FPI) United States $0.443B 30.24
Postal Realty Trust (PSTL) United States $0.436B 12.57
Claros Mortgage Trust (CMTG) United States $0.395B 0.00
Industrial Logistics Properties Trust (ILPT) United States $0.393B 7.36
Gladstone Land (LAND) United States $0.357B 103.01
Service Properties Trust (SVC) United States $0.355B 2.67
FrontView REIT (FVR) United States $0.345B 13.18
Chatham Lodging Trust (REIT) (CLDT) United States $0.340B 6.86
Net Lease Office Properties (NLOP) United States $0.298B 4.70
City Office REIT (CIO) Canada $0.282B 6.19
Alpine Income Property Trust (PINE) United States $0.243B 9.65
BRAEMAR HOTELS & RESORTS INC (BHR) United States $0.201B 12.25
Seritage Growth Properties (SRG) United States $0.195B 0.00
Orion Office REIT (ONL) United States $0.119B 2.78
Highlands REIT (HHDS) United States $0.068B 9.49
Clipper Realty (CLPR) United States $0.059B 5.13
Global Self Storage (SELF) United States $0.058B 12.41
Sotherly Hotels (SOHO) United States $0.044B 5.97
Ashford Hospitality Trust Inc (AHT) United States $0.028B 0.00
Medalist Diversified REIT (MDRR) United States $0.014B 0.00
Mackenzie Realty Capital (MKZR) United States $0.009B 0.00
Creative Media & Community Trust (CMCT) United States $0.003B 0.00
Granite Real Estate (GRP.U) Canada $0.000B 0.00