J. Jefferson Smith is Chief Research Officer at PRECISION BIOSCIENCES INC (DTIL). They have made 5 open-market trades across 1 company since 2024, most recently 2026-02-18.
CIK 0001770169
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 |
|---|---|---|
| DTIL | 126,851 | $733K |
Shares reported on the most recent Form 4, priced at the 2026-02-19 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 |
|---|---|---|---|---|---|---|---|---|
| DTIL | SELL | 2026-02-18 | 2026-02-19 | $3.84 | $19K | +13.0% | +69.0% | +86.0% |
| DTIL | SELL | 2026-01-21 | 2026-01-22 | $4.03 | $41K | -8.3% | -6.6% | +87.2% |
| DTIL | SELL · 10b5-1 | 2025-03-04 | 2025-03-05 | $4.91 | $756 | -1.6% | -10.1% | +0.4% |
| DTIL | SELL · 10b5-1 | 2025-01-22 | 2025-01-22 | $4.79 | $49K | -7.2% | +17.9% | +5.8% |
| DTIL | SELL | 2024-06-10 | 2024-06-11 | $11.79 | $590 | -21.7% | -19.0% | -15.2% |
| DTIL | SELL | 2024-05-02 | 2024-05-03 | $10.32 | $2K | +15.1% | +24.8% | -8.9% |
| DTIL | SELL | 2024-01-23 | 2024-01-23 | $0.37 | $10K | -1.0% | +8.5% | -13.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.