Robert D. Hormats is Director at AMERICAN TOWER CORP /MA/ (AMT). They have made 2 open-market trades across 1 company since 2019, most recently 2026-03-10.
CIK 0001029613
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AMT | 9,597 | $1.8M |
Shares reported on the most recent Form 4, priced at the 2026-03-12 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AMT | SELL | 2024-05-03 | 2024-05-07 | $183.50 | $128K | +8.1% | +10.9% | +25.7% |
| AMT | SELL · 10b5-1 | 2023-10-16 | 2023-10-18 | $166.39 | $25K | +8.9% | +24.8% | +31.3% |
| AMT | SELL · 10b5-1 | 2023-10-02 | 2023-10-04 | $163.63 | $25K | +7.8% | +21.4% | +39.4% |
| AMT | SELL · 10b5-1 | 2023-08-15 | 2023-08-17 | $185.34 | $23K | +3.9% | +2.8% | +12.1% |
| AMT | SELL · 10b5-1 | 2023-08-01 | 2023-08-03 | $190.75 | $24K | +0.8% | -2.0% | -3.1% |
| AMT | SELL · 10b5-1 | 2022-09-01 | 2022-09-06 | $252.94 | $38K | -3.5% | -20.3% | -15.4% |
| AMT | SELL · 10b5-1 | 2022-07-01 | 2022-07-06 | $254.53 | $38K | -3.6% | +5.3% | -14.9% |
| AMT | SELL · 10b5-1 | 2022-06-15 | 2022-06-17 | $235.40 | $47K | +5.6% | +3.0% | +1.3% |
| AMT | SELL | 2022-06-01 | 2022-06-03 | $256.13 | $51K | -10.5% | -5.1% | -4.5% |
| AMT | SELL · 10b5-1 | 2021-09-07 | 2021-09-09 | $300.50 | $30K | -1.6% | -11.8% | -7.0% |
| AMT | SELL · 10b5-1 | 2021-08-24 | 2021-08-26 | $289.49 | $29K | +6.6% | -3.8% | -6.8% |
| AMT | SELL · 10b5-1 | 2021-08-10 | 2021-08-12 | $281.55 | $28K | +1.5% | +5.1% | -1.6% |
| AMT | SELL · 10b5-1 | 2021-07-20 | 2021-07-22 | $283.11 | $28K | +0.7% | +2.2% | -2.2% |
| AMT | SELL · 10b5-1 | 2021-07-06 | 2021-07-08 | $272.87 | $27K | +1.9% | +0.9% | -3.5% |
| AMT | SELL · 10b5-1 | 2020-12-28 | 2020-12-30 | $218.87 | $22K | -2.2% | +3.5% | +7.9% |
| AMT | SELL · 10b5-1 | 2020-12-21 | 2020-12-23 | $218.36 | $22K | -0.6% | +3.6% | +6.3% |
| AMT | SELL · 10b5-1 | 2020-09-28 | 2020-09-30 | $243.07 | $24K | +1.7% | -5.2% | -9.0% |
| AMT | SELL · 10b5-1 | 2020-09-21 | 2020-09-23 | $243.38 | $24K | +3.0% | +0.6% | -6.7% |
| AMT | SELL · 10b5-1 | 2019-11-15 | 2019-11-19 | $212.21 | $11K | -2.9% | +3.9% | +17.2% |
| AMT | SELL · 10b5-1 | 2019-10-15 | 2019-10-17 | $225.74 | $23K | -4.3% | -5.1% | +4.2% |
| AMT | SELL · 10b5-1 | 2019-08-15 | 2019-08-19 | $219.25 | $22K | +2.2% | -1.7% | -5.0% |
| AMT | SELL · 10b5-1 | 2019-07-15 | 2019-07-17 | $210.33 | $21K | -1.5% | +6.8% | +7.5% |
| AMT | SELL · 10b5-1 | 2019-05-15 | 2019-05-17 | $198.20 | $20K | +2.5% | +7.2% | +12.2% |
| AMT | SELL · 10b5-1 | 2019-04-15 | 2019-04-17 | $196.70 | $20K | +2.3% | +6.0% | +9.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.