Valerie Barnett is CLO at Cytek Biosciences, Inc. (CTKB). They have made 1 open-market trade across 1 company since 2021, most recently 2026-05-18.
CIK 0001873091
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 $32K since 2021, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CTKB | 150,012 | $789K |
Shares reported on the most recent Form 4, priced at the 2026-05-20 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CTKB | BUY | 2021-07-22 | 2021-07-27 | $17.00 | $32K | +44.2% | +29.1% | +34.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.