AMERICAN TOWER CORP /MA/ (AMT)
Data as of , from SEC Form 4 filings.
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About AMERICAN TOWER CORP /MA/ (AMT)
AMT Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 2,829 | $501K |
| Open-market sale | 3 | 6,791 | $1.20M |
| Grant or award | 1 | 16,299 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
AMT insider transactions (Form 4)
1542 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Ruth T. Dowling - Officer | Grant or award | Common Stock | 11,083 footnote F1 | $0.00 | - | |
| ||||||
| Rodney M. Smith - Officer | Grant or award | Common Stock | 21,425 footnote F1 | $0.00 | - | |
| ||||||
 Steven O. Vondran - Officer | Grant or award | Common Stock | 24,626 footnote F1 | $0.00 | - | |
| ||||||
| Rodney M. Smith - Officer | Option exercise | Common Stock | 34,341 | $94.71 | $3.25M | |
| Rodney M. Smith - Officer | Open-market sale | Common Stock | 2,086 | $190.35 footnote F3 | $397K | |
| Rodney M. Smith - Officer | Open-market sale | Common Stock | 1 | $193.13 | $193 | |
| Rodney M. Smith - Officer | Open-market sale | Common Stock | 9,596 | $191.52 footnote F4 | $1.84M | |
| Rodney M. Smith - Officer | Open-market sale | Common Stock | 22,658 | $192.49 footnote F5 | $4.36M | |
| Rodney M. Smith - Officer | Option exercise | Option to Purchase Common Stock | 34,341 | $0.00 | - | |
| ||||||
| Eugene F. Reilly - Director | Open-market purchase | Common Stock | 5,554 | $178.99 | $994K | |
| Ruth T. Dowling - Officer | Tax withholding / forfeiture | Common Stock | 55 | $193.32 | $11K | |
| Eugene F. Reilly - Director | Other | Call Option (Obligation to Sell) | 1 | $0.00 | - | |
| Juan Font - Officer | Open-market sale | Common Stock | 720 | $208.33 | $150K | |
| Robert Joseph Meyer Jr. - Officer | Tax withholding / forfeiture | Common Stock | 162 | $214.65 | $35K | |
| Ruth T. Dowling - Officer | Tax withholding / forfeiture | Common Stock | 59 | $232.07 | $14K | |
Recent AMT Form 144 notices of proposed sale
2An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - |
Stock trades in AMT disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Dwight EvansDemocrat, PA-03 | Sale |
AMT insider trading FAQ
What is the latest insider trade for AMT?
AMERICAN TOWER CORP /MA/ (AMT) had 4 insider filings in the last 90 days, with the most recent on 2026-10-05. The full record for AMT runs to 42 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying AMT stock?
1 insider purchase of AMT was filed in the last 90 days, totaling $501K.
How many insiders are selling AMT stock?
3 insider sales of AMT were filed in the last 90 days, totaling $1.20M.
Where can I see AMT SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects AMT Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Paul Blanchett view on EDGAR
- - Rajesh Kalathur view on EDGAR
- - Robert Joseph Meyer Jr. view on EDGAR
- - Ruth T. Dowling view on EDGAR
- - Robert Joseph Meyer Jr. view on EDGAR
- - Pamela D. A. Reeve view on EDGAR
- - Robert D. Hormats view on EDGAR
- - Richard C. Rossi view on EDGAR
- - Juan Font view on EDGAR
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Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Real Estate
- Where AMT's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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