Van Herk Management Services B.V. is 10% Owner at MARRONE BIO INNOVATIONS INC (MBII). They have made 2 open-market trades across 1 company since 2019, most recently 2019-02-21.
CIK 0001510644
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.
1 open-market purchase totalling $300 since 2019, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MBII | 7,128,770 | $5.7M |
Shares reported on the most recent Form 4, priced at the 2019-02-25 close.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.