Companies / American Tower Corp
American Tower Corp
Financials · FY2025
Ownership
466.0M shares outstanding · as of Jul 21, 2026
Ownership
| Insiders | 0.08% | 357,549 |
| 10%+ / strategic | 13.51% | 62,964,837 |
| Institutions | 104.15% | 485,276,273 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 20
View all →| Insider | % of shares | Shares |
|---|---|---|
Vondran Steven OCEOPresident and CEO · Director | 0.02% | 108,902 |
Smith Rodney MEVP, CFO & Treasurer | 0.02% | 92,542 |
Noel Eugene MEVP & Chief Operating Officer | <0.01% | 34,542 |
Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec | <0.01% | 29,461 |
Font JuanCEOFormerSVP, Pres. & CEO, CoreSite | <0.01% | 28,352 |
Meyer Robert JosephFormerSVP & Advisor to the CFO | <0.01% | 26,286 |
Reeve Pamela D aDirector | <0.01% | 21,089 |
Rossi Richard CFormerEVP & President, U.S. Tower | <0.01% | 17,518 |
Macnab CraigDirector | <0.01% | 15,315 |
Hormats Robert DDirector | <0.01% | 9,597 |
Institutional holders 1,781
View all →| Holder | Value | % of shares |
|---|---|---|
| $11.19B | 13.68% | |
| $7.49B | 9.83% | |
| $3.65B | 4.74% | |
| $2.53B | 3.09% | |
| $2.40B | 2.99% | |
| $2.11B | 2.58% | |
| $1.72B | 2.10% | |
| $1.26B | 1.57% | |
| $1.22B | 1.49% | |
| $1.17B | 1.43% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Norges Bank 13F manager | Exit | Common stock | $-1.17B | -6.7M -100.00% | 0 | high |
| Q1 2026 as of | Federated Hermes Inc 13F manager | Add | Common stock | $373.52M | +2.2M +365.78% | 2,756,058 0.59% of shares | high |
| Q2 2026 as of | Ontario Teachers Pension Plan Board 13F manager | New | Common stock | $291.87M | +1.8M | 1,784,357 0.38% of shares | high |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common stock | $288.18M | +1.8M +4.00% | 45,796,561 9.83% of shares | high |
| Q1 2026 as of | Lazard Asset Management LLC 13F manager | Add | Common stock | $214.13M | +1.2M +20.39% | 7,325,943 1.57% of shares | high |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $178.30M | +1.1M +5.14% | 22,066,202 4.74% of shares | high |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Trim | Common stock | $-151.64M | -884K -60.64% | 574,106 0.12% of shares | high |
| Q3 2025 as of | Barclays PLC 13F manager | Add | Common stock | $143.09M | +744K +88.56% | 1,584,224 0.34% of shares | high |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Vanguard Portfolio Management | Passive13G | — |
| Vanguard Capital Management | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| AMT | — | 03027X100 |