Matthew J. Desch is CEO at Iridium Communications Inc. (IRDM). They have made 37 open-market trades across 4 companies since 2006, most recently 2026-09-01.
CIK 0001178032
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.
12 open-market purchases totalling $2.9M since 2006, against 25 sales. Across 11 scored buys the stock is up 2.2% at ninety days, and 0.3 points behind the S&P over the same stretch.
11 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| IRDM | 1,441,434 | $63.1M |
| STAR | 14,248 | $679K |
| UIS | 238,623 | $525K |
| VRSN | 1,628 | $492K |
| AIRN | 78,632 | — |
| Total | $64.8M |
Shares reported on the most recent Form 4, priced at the 2026-09-02 close. 1 holding could not be priced and is excluded from the total.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 27% | 91% | 91% |
| Avg Move | -8.6% | +1.8% | +2.2% |
| Alpha | -5.2% | +0.8% | -0.3% |
| Scored | 11 | 11 | 11 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IRDM | BUY | 2025-10-30 | 2025-11-03 | $17.33 | $693K | -8.8% | -6.4% | +8.0% |
| IRDM | BUY | 2023-11-20 | 2023-11-21 | $37.01 | $1.0M | +5.7% | +7.8% | -22.3% |
| UIS | BUY | 2023-05-09 | 2023-05-10 | $3.87 | $194K | +9.2% | +0.7% | +1.9% |
| IRDM | SELL | 2023-02-22 | 2023-02-24 | $62.82 | $12.6M | -4.4% | -1.7% | -3.7% |
| IRDM | SELL | 2023-01-12 | 2023-01-13 | $60.07 | $3.6M | -4.0% | -6.9% | -3.5% |
| IRDM | SELL | 2023-01-09 | 2023-01-11 | $60.07 | $5.4M | -0.4% | -4.7% | +0.3% |
| IRDM | SELL | 2023-01-05 | 2023-01-06 | $55.95 | $3.5M | -2.0% | -1.1% | +1.3% |
| IRDM | SELL | 2023-01-03 | 2023-01-05 | $54.18 | $3.4M | +9.5% | +9.0% | +11.8% |
| IRDM | SELL | 2022-11-04 | 2022-11-08 | $52.21 | $1.3M | +1.3% | -2.0% | +15.3% |
| IRDM | SELL | 2022-11-01 | 2022-11-03 | $52.02 | $4.0M | -0.6% | -2.4% | +17.4% |
| IRDM | SELL | 2022-08-05 | 2022-08-09 | $45.38 | $8.6M | -0.9% | -3.5% | +15.1% |
| IRDM | SELL | 2021-02-18 | 2021-02-19 | $48.32 | $6.0M | -15.7% | -14.7% | -18.6% |
| IRDM | SELL · 10b5-1 | 2020-12-22 | 2020-12-23 | $38.11 | $2.9M | +4.6% | +23.1% | -5.1% |
| IRDM | SELL | 2020-12-09 | 2020-12-10 | $34.90 | $4.5M | +13.2% | +28.2% | +21.6% |
| IRDM | SELL | 2020-12-04 | 2020-12-07 | $34.67 | $5.2M | +5.3% | +21.8% | +9.2% |
| IRDM | SELL | 2020-12-01 | 2020-12-03 | $33.04 | $3.1M | +5.5% | +14.2% | +14.3% |
| IRDM | SELL | 2020-11-24 | 2020-11-27 | $32.91 | $403K | +5.4% | +18.8% | +18.3% |
| IRDM | SELL | 2020-10-20 | 2020-10-21 | $30.00 | $2.8M | -3.6% | +13.8% | +72.5% |
| IRDM | SELL | 2020-08-07 | 2020-08-11 | $30.00 | $238K | -4.3% | -4.7% | +0.8% |
| IRDM | SELL | 2020-07-28 | 2020-07-29 | $28.50 | $5.7M | +5.7% | +1.7% | -5.6% |
| IRDM | SELL | 2020-02-11 | 2020-02-13 | $30.28 | $6.2M | -8.4% | -36.6% | -35.7% |
| IRDM | SELL | 2020-02-05 | 2020-02-07 | $28.09 | $4.5M | +8.1% | -9.7% | -25.5% |
| IRDM | SELL | 2020-01-16 | 2020-01-17 | $28.04 | $1.2M | -4.7% | +14.8% | -15.2% |
| IRDM | SELL | 2018-11-19 | 2018-11-21 | $21.53 | $11.8M | +4.4% | -20.8% | -0.8% |
| IRDM | BUY | 2016-09-09 | 2016-09-12 | $6.98 | $105K | +8.9% | +17.0% | +35.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.