Mark Gruber is COO at Armour Residential REIT, Inc. (ARR). They have made 6 open-market trades across 1 company since 2017, most recently 2024-02-22.
CIK 0001585875
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.
6 open-market purchases totalling $318K since 2017, never a sale. Across 6 scored buys the stock is up 2.5% at ninety days, and 1.9 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| ARR | 23,588 | $312K |
Shares reported on the most recent Form 4, priced at the 2024-02-26 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 33% | 67% | 67% |
| Avg Move | -1.3% | +0.9% | +2.5% |
| Alpha | -0.3% | +0.7% | -1.9% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ARR | BUY | 2020-06-15 | 2020-06-15 | $8.80 | $26K | -2.1% | -2.4% | +2.3% |
| ARR | BUY | 2018-02-20 | 2018-02-20 | $22.70 | $45K | -3.5% | -0.1% | +1.2% |
| ARR | BUY | 2017-10-30 | 2017-10-30 | $25.38 | $102K | -4.1% | +0.7% | -6.0% |
| ARR | BUY | 2017-07-31 | 2017-07-31 | $25.33 | $51K | +2.3% | +3.8% | +0.0% |
| ARR | BUY | 2017-05-04 | 2017-05-05 | $25.05 | $50K | -1.9% | +2.6% | +1.2% |
| ARR | BUY | 2017-02-21 | 2017-02-22 | $21.71 | $43K | +1.5% | +0.5% | +16.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.