Warren L. Robinson is Director at BLACK HILLS CORP /SD/ (BKH). They have made 4 open-market trades across 1 company since 2008, most recently 2015-03-02.
CIK 0001195507
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.
4 open-market purchases totalling $206K since 2008, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BKH | 7,108 | $545K |
Shares reported on the most recent Form 4, priced at the 2015-03-02 close.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.