Ruben Calderon is CFO at JFB Construction Holdings (JFB). They have made 1 open-market trade across 1 company since 2025, most recently 2025-12-10.
CIK 0002061362
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 $29K since 2025, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| JFB | 26,550 | $131K |
Shares reported on the most recent Form 4, priced at the 2025-12-10 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 |
|---|---|---|---|---|---|---|---|---|
| JFB | BUY | 2025-12-10 | 2025-12-10 | $18.72 | $29K | -14.9% | -5.4% | +8.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.