Ronen Tchelet is VP at DYADIC INTERNATIONAL INC (DYAI). They have made 9 open-market trades across 1 company since 2019, most recently 2026-01-02.
CIK 0001761230
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 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DYAI | 50,897 | $21K |
Shares reported on the most recent Form 4, priced at the 2026-01-06 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DYAI | SELL · 10b5-1 | 2022-07-07 | 2022-07-11 | $3.49 | $31K | -10.6% | -21.2% | -50.6% |
| DYAI | SELL | 2019-12-10 | 2019-12-12 | $5.82 | $58K | -14.6% | -4.3% | -19.7% |
| DYAI | SELL | 2019-11-11 | 2019-11-12 | $5.99 | $60K | -0.2% | +2.2% | +4.3% |
| DYAI | SELL | 2019-10-10 | 2019-10-11 | $6.06 | $61K | -2.0% | -7.2% | -16.7% |
| DYAI | SELL | 2019-09-10 | 2019-09-12 | $5.27 | $105K | +18.5% | +20.8% | +9.3% |
| DYAI | SELL | 2019-08-12 | 2019-08-14 | $5.74 | $57K | +12.6% | -6.7% | -2.4% |
| DYAI | SELL | 2019-07-10 | 2019-07-11 | $5.87 | $59K | -10.2% | +1.1% | +12.1% |
| DYAI | SELL | 2019-06-18 | 2019-06-20 | $6.44 | $129K | -15.8% | -26.9% | -12.9% |
| DYAI | SELL | 2019-06-18 | 2019-06-20 | $6.44 | $129K | -15.8% | -26.9% | -12.9% |
| DYAI | SELL | 2019-06-17 | 2019-06-19 | $6.11 | $122K | -15.9% | -27.6% | -13.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.