Kenneth Koon Keung Lai is VP at BEL FUSE INC /NJ (BELFB). They have made 5 open-market trades across 1 company since 2023, most recently 2026-03-16.
CIK 0001960567
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.
0 open-market purchases, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BELFB | 7,532 | $1.6M |
Shares reported on the most recent Form 4, priced at the 2026-03-17 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BELFB | SELL | 2026-03-16 | 2026-03-17 | $203.21 | $112K | -3.0% | +15.2% | +43.6% |
| BELFB | SELL | 2025-11-17 | 2025-11-19 | $143.72 | $719K | +8.7% | +18.2% | +58.4% |
| BELFB | SELL | 2025-08-01 | 2025-08-04 | $128.00 | $243K | -0.2% | +4.3% | +19.8% |
| BELFB | SELL | 2025-06-13 | 2025-06-16 | $84.03 | $336K | +9.0% | +12.0% | +65.4% |
| BELFB | SELL | 2023-12-14 | 2023-12-15 | $64.04 | $192K | +6.4% | -2.1% | -11.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.