Robert H. Niehaus is Director at Iridium Communications Inc. (IRDM). They have made 32 open-market trades across 7 companies since 2006, most recently 2026-08-17.
CIK 0001241677
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.
10 open-market purchases totalling $4.1M since 2008, against 22 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CCI | 2,498,329 | $205.5M |
| ZETA | 611,772 | $19.4M |
| IRDM | 266,910 | $11.7M |
| GHL | 104,325 | $1.6M |
| XCO | 5,469 | $3K |
| PLB | 19,880 | — |
| KRU | 63,298 | — |
| HPY | 87,722 | — |
| GHQ | 398,276 |
Shares reported on the most recent Form 4, priced at the 2026-08-19 close. 4 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IRDM | BUY | 2025-10-28 | 2025-10-29 | $17.49 | $525K | -2.7% | -3.2% | +25.1% |
| ZETA | BUY | 2024-11-18 | 2024-11-19 | $18.62 | $559K | +5.1% | -16.5% | +8.1% |
| IRDM | SELL | 2024-10-23 | 2024-10-24 | $29.39 | $2.3M | +2.7% | +3.7% | +0.8% |
| IRDM | SELL | 2023-05-01 | 2023-05-02 | $63.69 | $7.1M | -4.5% | -6.0% | -19.2% |
| IRDM | SELL | 2023-02-22 | 2023-02-24 | $62.84 | $4.6M | -4.4% | -1.7% | -3.7% |
| ZETA | SELL | 2022-10-25 | 2022-10-27 | $8.02 | $2.4M | +4.9% | +7.4% | +12.2% |
| IRDM | SELL | 2022-08-03 | 2022-08-04 | $45.19 | $2.7M | +1.4% | +3.4% | +10.5% |
| IRDM | SELL | 2021-08-02 | 2021-08-04 | $42.09 | $2.5M | -6.1% | +7.1% | -3.4% |
| ZETA | SELL | 2021-06-14 | 2021-12-08 | $10.00 | $10.5M | -10.6% | -9.0% | +19.4% |
| IRDM | SELL | 2021-02-17 | 2021-02-19 | $48.20 | $4.8M | -15.7% | -14.7% | -18.6% |
| IRDM | SELL | 2020-06-03 | 2020-06-05 | $25.60 | $1.3M | -2.5% | +4.4% | +9.4% |
| HPY | SELL | 2015-11-04 | 2015-11-06 | $72.79 | $1.1M | N/A | N/A | N/A |
| HPY | SELL | 2014-05-08 | 2014-05-09 | $40.75 | $51K | N/A | N/A | N/A |
| HPY | SELL | 2014-03-11 | 2014-03-13 | $44.39 | $1.6M | N/A | N/A | N/A |
| IRDM | BUY | 2012-11-06 | 2012-11-07 | $6.45 | $194K | -15.7% | +0.1% | +0.1% |
| HPY | SELL | 2012-09-10 | 2012-09-11 | $31.78 | $322K | N/A | N/A | N/A |
| HPY | SELL | 2012-02-27 | 2012-02-29 | $28.88 | $866K | N/A | N/A | N/A |
| HPY | SELL | 2011-08-09 | 2011-08-11 | $19.78 | $1.6M | N/A | N/A | N/A |
| GHL | SELL | 2009-11-23 | 2009-11-24 | $82.54 | $16.3M | -24.0% | -0.3% | -0.3% |
| GHQ | BUY | 2009-09-01 | 2009-09-02 | $9.96 | $2K | N/A | N/A | N/A |
| GHQ | BUY | 2009-08-27 | 2009-08-31 | $9.95 | $222K | N/A | N/A | N/A |
| GHL | SELL | 2009-08-04 | 2009-08-05 | $76.00 | $18.5M | -24.0% | -0.3% | -0.3% |
| GHQ | BUY | 2009-06-29 | 2009-06-30 | $9.79 | $246K | N/A | N/A | N/A |
| GHQ | BUY | 2009-06-17 | 2009-06-19 | $9.75 | $7K | N/A | N/A | N/A |
| GHQ | BUY | 2009-06-16 | 2009-06-18 | $9.75 | $1.5M | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| — |
| Total | $238.1M |