American Tower Corporation (AMT)
NYSE: AMT · Real Estate Investment Trusts · Boston, MA · filing with the SEC since 1998
Grade5.8
◀ Past 6.9● Present 5.4▶ Future 5.6
Who owns American Tower Corporation
As filed with the SECHolders of 5% or more
3
Blackrock, Inc. holds 9.2% of Common Stock, as its SCHEDULE 13G/A filed Feb 5, 2025 says.
Directors and officers
21
report now, of 34 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 3 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Feb 5, 2025 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 28, 2026 · Common Stock
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What AMT reports owning in othersstakes of 5% or more, and other ties
AST SpaceMobile, Inc. ASTS
SCHEDULE 13D/A · filed Dec 11, 2025 · Class A Common Stock, par value $0.0001 per share · reported falling below 5%
317 subsidiaries in 28 countries, from the list filed with the 10-K filed Feb 24, 2026.
Insider tradesForm 4
22sales
6purchases
19sales on a scheduled plan
6people selling
$23.6Msold, in dollars
$1.0Mbought, in dollars
Open-market trades on Form 4 from Nov 3, 2025 to Nov 3, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 3, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window8 of 34 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Noel Eugene M | EVP & Chief Operating Officer | 4 | $7.9M | 4 | 0 | $0 |
| Smith Rodney M | EVP, CFO & Treasurer | 4 | $6.6M | 4 | 0 | $0 |
| Vondran Steven O | President and CEO | 3 | $6.3M | 3 | 0 | $0 |
| Meyer Robert Joseph Jr | SVP & Advisor to the CFO | 2 | $1.7M | 0 | 0 | $0 |
| Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | 8 | $1.0M | 8 | 0 | $0 |
| Font Juan | SVP, Pres. & CEO, CoreSite | 1 | $100,000 | 0 | 0 | $0 |
| Clarke Teresa Hillary | director | 0 | $0 | 0 | 4 | $0 |
| Kalathur Rajesh | director | 0 | $0 | 0 | 2 | $1.0M |