Development Inc. Clayburn is 10% at PLUG POWER INC (PLUG). They have made 4 open-market trades across 1 company since 2007, most recently 2008-02-08.
CIK 0001359865
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 $684K since 2007, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PLUG | 5,120,104 | $7.2M |
Shares reported on the most recent Form 4, priced at the 2008-02-11 close.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.