Vance D. Coffman is Director at 3M CO (MMM). They have made 1 open-market trade across 1 company since 2008, most recently 2019-03-06.
CIK 0001193998
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 $500K since 2008, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AMGN | BUY | 2008-11-04 | 2008-11-05 | $60.50 | $500K | -8.5% | -0.4% | -0.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.