Stocks › AMT

American Tower Corp AMT

US equity

$168.79

−$2.00 (-1.17%)

Market open · Sep 24, 1:10 pm ET

After hours $170.84 +0.04%

Open$171.11

Prev close$170.78

Day range$166.54 – $171.09

Volume937.8K

Market cap$82.87B

P/E (TTM)–

Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership96.4%-0.07 pts vs. prior quarter

Institutions holding2,074-12 vs. prior quarter

Insider trades (recent)1 buys / 3 sellsNet selling

Short interest1.27% of floatDays to cover 3.1 · as of 31 Aug 2026

Short-sale volume share13.7%5-day average of daily volume

Net of large-order buying minus selling, in USD. Over this window: −$33.98M (8 inflow days, 12 outflow days).

Institutional holders2,074

Institutional ownership96.4%

Total transactions22

Bought1

Sold3

Report date	Shares short	% of float	Days to cover
31 Aug 2026	5,929,222	1.3%	3.1
14 Aug 2026	7,032,065	1.5%	3.0
31 Jul 2026	7,601,720	1.6%	2.2
15 Jul 2026	7,640,281	1.6%	2.5
30 Jun 2026	7,656,891	1.6%	1.9
15 Jun 2026	8,952,567	1.9%	2.8