Form4.ai tracks every SEC insider trade in real time. See every AMT insider filing with a free account — no card.
See every AMT insider filing — free account, no card.
Free accountAMERICAN TOWER CORP (AMT) has 5 SEC Form 4 insider filings on record in the last 90 days. That includes 2 insider purchases totalling $564K, and 2 sales totalling $403K. Most recent filing: Nov. 3, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Nov 3, 2026 SEC filing | Font Juan SVP, Pres. & CEO, CoreSite | Sold | $112,261 | — |
| Oct 30, 2026 SEC filing | Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec | Sold | $290,823 | — |
| Oct 22, 2026 SEC filing | Clarke Teresa Hillary Director | Bought | $63,718 | -2.4% 7D |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.