Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| AMT | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | 10/29/2026 | Verkauf | 185.81 | 952 | 176,891 | Form 4 |
| AMT | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | 10/28/2026 | Verkauf | 182.00 | 626 | 113,932 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 10/20/2026 | Kauf | 183.20 | 43 | 7,878 | Form 4 |
| AMTB | Nursey Michael E. | See remarks | 10/08/2026 | Steuer-Abgabe | 29.03 | 122 | 3,542 | Form 4 |
| AMTB | Nursey Michael E. | See remarks | 10/08/2026 | Optionsausübung | — | 500 | — | Form 4 |
| AMT | Blanchett Paul | SVP & Chief Accounting Officer | 10/01/2026 | Zuteilung | — | 16,299 | — | Form 4 |
| AMT | Kalathur Rajesh | Director | 08/21/2026 | Kauf | 177.00 | 2,829 | 500,733 | Form 4 |
| AMTM | Thompson Christopher M.T. | Director | 08/14/2026 | Schenkung | — | 4,250 | — | Form 4 |
| AMT | Meyer Robert Joseph | SVP & Advisor to the CFO | 07/29/2026 | Verkauf | 178.89 | 5,000 | 894,450 | Form 4 |
| AMT | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | 07/29/2026 | Verkauf | 174.96 | 1,106 | 193,506 | Form 4 |
| AMT | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | 07/28/2026 | Verkauf | 169.54 | 685 | 116,135 | Form 4 |
| AMTB | Cragg Lee Ann | SEVP, Chief Credit Officer | 07/21/2026 | Steuer-Abgabe | 25.86 | 49 | 1,267 | Form 4 |
| AMTB | Cragg Lee Ann | SEVP, Chief Credit Officer | 07/21/2026 | Optionsausübung | — | 201 | — | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 07/13/2026 | Kauf | 167.52 | 46 | 7,706 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 04/28/2026 | Kauf | 177.08 | 44 | 7,792 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 02/02/2026 | Kauf | 178.04 | 31 | 5,519 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 10/20/2025 | Kauf | 189.12 | 29 | 5,484 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 07/11/2025 | Kauf | 223.23 | 24 | 5,358 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 04/28/2025 | Kauf | 209.33 | 25 | 5,233 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 02/03/2025 | Kauf | 187.27 | 18 | 3,371 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 10/25/2024 | Kauf | 227.42 | 14 | 3,184 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 07/12/2024 | Kauf | 204.28 | 16 | 3,268 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 04/26/2024 | Kauf | 172.82 | 19 | 3,284 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 02/01/2024 | Kauf | 199.95 | 8 | 1,600 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 10/27/2023 | Kauf | 171.52 | 8 | 1,372 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 07/10/2023 | Kauf | 193.78 | 7 | 1,356 | Form 4 |
| AMT | Clarke Teresa Hillary | Director | 04/28/2023 | Kauf | 205.93 | 7 | 1,442 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).