Katherine Lyon Davis is Director at CHEMBIO DIAGNOSTICS, INC. (CEMI). They have made 3 open-market trades across 1 company since 2010, most recently 2023-04-26.
CIK 0001399265
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.
3 open-market purchases totalling $18K since 2010, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CEMI | 106,457 | $48K |
Shares reported on the most recent Form 4, priced at the 2023-05-01 close.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.