Sergei Krylov is CFO at Approach Resources Inc (AREX). They have made 1 open-market trade across 1 company since 2018, most recently 2026-05-27.
CIK 0001594869
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 $27K since 2022, never a sale. Too few scored purchases to measure a record yet.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.