American Tower Corporation (AMT)

Publicly reported company facts and saved market data for American Tower Corporation (AMT), with sources and as-of times. Saved data is not a live quote.

Company profile

American Tower, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of over 148,000 communications sites and a highly interconnected footprint of U.S. data center facilities.

Company facts

Sector: Real Estate
Industry: Real Estate Investment Trusts
Market cap: $87.1B · as of 2026-10-30
Incorporated in: United States
Company website: www.americantower.com
Exchange: NYSE

Saved quote

Saved snapshot, not a real-time quote. Check the market time before relying on it.

Last reported price: $187.68
Reported change: +0.97%
Reported volume: 3,113,582
Latest market time: 2026-10-30 19:57 ET

Float and shares outstanding

AMT float references and SEC-reported shares outstanding
Measure	Shares	As of	Source and basis
Float	465,494,088	2026-08-18	Reported by a single source; not cross-checked.
Shares outstanding (O/S)	465,960,048	2026-07-21	SEC 10-Q filing · filed 2026-07-28

Dates are measurement dates, not the time FennEdge retrieved the data. Float references are listed separately; they are not averaged or adjusted for later splits or share issuances.

Recent daily sessions

The 10 most recent saved daily sessions, through 2026-10-26. Daily OHLC and volume; not real-time.

AMT daily open, high, low, close and volume
Date	Open	High	Low	Close	Volume
2026-10-26	188.50	191.19	187.28	188.28	4,428,108
2026-10-23	200.72	202.50	185.44	188.97	8,852,784
2026-10-22	178.65	182.78	177.18	181.57	4,058,915
2026-10-21	183.50	183.78	177.10	177.64	2,588,109
2026-10-20	184.50	185.86	182.96	183.56	2,816,305
2026-10-19	184.39	186.00	181.31	183.03	3,184,556
2026-10-16	181.48	185.88	180.54	185.27	2,458,557
2026-10-15	182.75	184.69	180.37	181.36	2,852,174
2026-10-14	178.24	179.94	176.42	179.40	3,118,770
2026-10-13	184.50	184.75	179.36	179.43	3,039,547

Dilution timeline

As of 2026-10-27T10:05:44.697674+00:00

2026-09-10 · 424B2 · Prospectus filed
2026-09-09 · 424B5 · Prospectus filed
2026-09-09 · FWP · Free writing prospectus filed
2026-05-20 · 424B2 · Prospectus filed
2026-05-19 · 424B5 · Prospectus filed
2026-05-19 · FWP · Free writing prospectus filed
2025-06-02 · S-3ASR · Shelf registration filed

Parsed share counts, prices and warrant terms require Plus or above. Explore plans

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