64 transactions on file (1 open-market purchase and 3 open-market sales on this page).
| Date | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-21 | Kalathur Rajesh Director Open-market purchase | Open-market purchase | +2,829 | $177.00 | +500.73K | 7,765 |
| 2026-07-29 | Meyer Robert Joseph SVP & Advisor to the CFO Open-market sale | Open-market sale | −5,000 | $178.89 | −894.45K | 21,428 |
| 2026-07-29 | Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec Open-market sale | Open-market sale | −1,106 | $174.96 | −193.51K | 27,711 |
| 2026-07-28 | Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec Open-market sale | Open-market sale | −685 | $169.54 | −116.13K | 28,817 |
| 2026-06-01 | Meyer Robert Joseph SVP & Advisor to the CFO Tax withholding | Tax withholding | −153 | $187.53 | −28.69K | 26,286 |
59 more transactions are on Measure
The assistant answers from what AMT has actually filed: 19 annual reports filed with the SEC, 64 Form 4 filings from the last year, 13F positions from the 3 tracked investors who hold it and 6 funds that hold it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.
Pressing one answers it here, from AMT's filings and figures. One a day without an account; a free account has its own, and no card.
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Source
From SEC Form 4 filings, filed by officers, directors and 10%-owners within two business days of a transaction. “Indirect” holdings (a trust, an LLC, a family member) are included and not distinguished from direct ones in this table.
Past transactions say nothing about future ones, and none of this is investment advice.
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Every Form 4 AMT insiders file, not just the latest handful, with vesting and tax withholding struck out so what's left reads as a decision.
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Each stake priced at the quarter it was filed, and diffed against the quarter before: who added, who trimmed, who left.
Every position they holdMeasure
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Whether this is one decision or a pattern, and how it compares with AMT's own history of insider activity.
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