American Tower Corp
AMTFigures shown here come from public SEC filings. Dates beside each section show the available history.
How American Tower Corp Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
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Financial Summary
Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.
Loading financial history…
SEC filings supply these figures; updates after the dates shown are not included. This page includes 19 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 3, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| AR ASSET MANAGEMENT INC | 2026-03-31 | 6,000 | Not shown | SEC filing |
| West Oak Capital, LLC | 2025-06-30 | 45 | Not shown | SEC filing |
| West Oak Capital, LLC | 2025-03-31 | 45 | Not shown | SEC filing |
| Violich Capital Management, Inc. | 2025-03-31 | 1,650 | Not shown | SEC filing |
| West Oak Capital, LLC | 2024-12-31 | 45 | Not shown | SEC filing |
| Violich Capital Management, Inc. | 2024-12-31 | 1,650 | Not shown | SEC filing |
| 1620 INVESTMENT ADVISORS, INC. | 2024-09-30 | 29 | Not shown | SEC filing |
| West Oak Capital, LLC | 2024-09-30 | 45 | Not shown | SEC filing |
| Violich Capital Management, Inc. | 2024-09-30 | 1,650 | Not shown | SEC filing |
| West Oak Capital, LLC | 2024-06-30 | 1,103 | Not shown | SEC filing |
| Violich Capital Management, Inc. | 2024-06-30 | 1,650 | Not shown | SEC filing |
- Each value is checked against American Tower Corp's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 1 row: the filed value is about 1,000 times too small for the share count at American Tower Corp's share price.
- Value not shown for 10 rows: no share price from within three months of their report dates is on file, so they could not be checked.
- 1 row left out: the value per share it reports is far from American Tower Corp's share prices on file from around the report date, far from the value most filers reported for that date, or the value of a security already left out, so it may describe another security or share class.
- 8 rows left out: they repeat the same share count and value quarter after quarter, which a market value cannot do.
Filer report history
Two reports per filer, as filed. No change is calculated, because the data on file cannot confirm that both reports describe the same security. Filers with a row left out above, or with no row above to check, are not listed.
- Violich Capital Management, Inc.: 1,650 shares reported 2024-12-31; 1,650 shares reported 2025-03-31.
- Violich Capital Management, Inc.: 1,650 shares reported 2024-09-30; 1,650 shares reported 2024-12-31.
- Violich Capital Management, Inc.: 1,650 shares reported 2024-06-30; 1,650 shares reported 2024-09-30.
- 1620 INVESTMENT ADVISORS, INC.: 20 shares reported 2024-06-30; 29 shares reported 2024-09-30.
2 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among American Tower Corp's recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2026-03-04 · Vondran Steven O: Larger than 59 of the 65 other insider sales of Common Stock on file. SEC filing
- 2026-03-04 · Vondran Steven O: Larger than 60 of the 65 other insider sales of Common Stock on file. SEC filing
- 2026-03-02 · Noel Eugene M: Larger than 63 of the 65 other insider sales of Common Stock on file. SEC filing
- 2026-02-17 · Smith Rodney M: Larger than 64 of the 65 other insider sales of Common Stock on file. SEC filing
- 2024-09-10 · Noel Eugene M: Larger than all 65 other insider sales of Common Stock on file. SEC filing
- 2024-09-03 · Puech Olivier: Larger than 61 of the 65 other insider sales of Common Stock on file. SEC filing
- 2024-08-02 · Vondran Steven O: Larger than 62 of the 65 other insider sales of Common Stock on file. SEC filing
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-04-29 | Dowling Ruth T · EVP, Chief Admin Ofr, GC & Sec | Common Stock | S — Open market or private sale | −416 | 177.54 | SEC filing |
| 2026-04-28 | Dowling Ruth T · EVP, Chief Admin Ofr, GC & Sec | Common Stock | S — Open market or private sale | −556 | 178.48 | SEC filing |
| 2026-03-10 | Kalathur Rajesh · Director | Common Stock | P — Open market or private purchase | +2,671 | 185.30 | SEC filing |
| 2026-03-04 | Vondran Steven O · President and CEO | Common Stock | S — Open market or private sale | −1,773 | 189.82 | SEC filing |
| 2026-03-04 | Vondran Steven O · President and CEO | Common Stock | S — Open market or private sale | −16,625 | 188.82 | SEC filing |
| 2026-03-04 | Vondran Steven O · President and CEO | Common Stock | S — Open market or private sale | −15,084 | 187.90 | SEC filing |
| 2026-03-04 | Dowling Ruth T · EVP, Chief Admin Ofr, GC & Sec | Common Stock | S — Open market or private sale | −682 | 188.51 | SEC filing |
| 2026-03-02 | Noel Eugene M · EVP & Chief Operating Officer | Common Stock | S — Open market or private sale | −7,378 | 190.29 | SEC filing |
Showing 8 of 12 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-01 | Meyer Robert Joseph · SVP & Advisor to the CFO | Common Stock | F — Payment of exercise price or tax by delivering securities | −153 | SEC filing |
| 2026-05-28 | REEVE PAMELA D A · Director | Common Stock | G — Bona fide gift | −810 | SEC filing |
| 2026-03-11 | Meyer Robert Joseph · SVP & Chief Accounting Officer | Common Stock | F — Payment of exercise price or tax by delivering securities | −684 | SEC filing |
| 2026-03-11 | Dowling Ruth T · EVP, Chief Admin Ofr, GC & Sec | Common Stock | F — Payment of exercise price or tax by delivering securities | −863 | SEC filing |
| 2026-03-11 | Vondran Steven O · President and CEO | Common Stock | F — Payment of exercise price or tax by delivering securities | −2,158 | SEC filing |
| 2026-03-11 | Smith Rodney M · EVP, CFO & Treasurer | Common Stock | F — Payment of exercise price or tax by delivering securities | −1,295 | SEC filing |
| 2026-03-11 | Font Juan · SVP, Pres. & CEO, CoreSite | Common Stock | F — Payment of exercise price or tax by delivering securities | −928 | SEC filing |
| 2026-03-11 | Noel Eugene M · EVP & Chief Operating Officer | Common Stock | F — Payment of exercise price or tax by delivering securities | −719 | SEC filing |
Showing 8 of 31 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2025-09-19 | REILLY EUGENE F · Director | Call Option (Obligation to Sell) | E — Expiration of short derivative position | −1 | SEC filing |
Showing 1 of 1 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.