Joseph John Corso is CFO at NLIGHT, INC. (LASR). They have made 5 open-market trades across 1 company since 2023, most recently 2026-09-04.
CIK 0001914846
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 |
|---|---|---|
| LASR | 162,200 | $4.8M |
Shares reported on the most recent Form 4, priced at the 2026-09-08 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 |
|---|---|---|---|---|---|---|---|---|
| LASR | SELL · 10b5-1 | 2026-09-03 | 2026-09-08 | $41.06 | $317K | -1.7% | -5.6% | — |
| LASR | SELL · 10b5-1 | 2026-06-03 | 2026-06-05 | $75.45 | $578K | -5.5% | -4.4% | -39.2% |
| LASR | SELL · 10b5-1 | 2026-05-19 | 2026-05-21 | $69.70 | $3.9M | -1.4% | -15.8% | -38.2% |
| LASR | SELL | 2026-05-15 | 2026-05-19 | $72.93 | $2.8M | +1.3% | -7.2% | -22.5% |
| LASR | SELL · 10b5-1 | 2026-03-05 | 2026-03-09 | $61.20 | $1.6M | +14.3% | -2.7% | +7.5% |
| LASR | SELL · 10b5-1 | 2025-12-15 | 2025-12-17 | $36.33 | $2.5M | +7.5% | +22.6% | +98.4% |
| LASR | SELL | 2025-12-03 | 2025-12-05 | $33.78 | $279K | -5.0% | +4.4% | +71.4% |
| LASR | SELL · 10b5-1 | 2025-09-04 | 2025-09-08 | $29.41 | $453K | +8.9% | +6.7% | +29.0% |
| LASR | SELL · 10b5-1 | 2025-08-25 | 2025-08-27 | $28.29 | $2.2M | +0.0% | -0.1% | +14.1% |
| LASR | SELL | 2025-08-20 | 2025-08-22 | $26.78 | $1.4M | +5.3% | +12.5% | +2.2% |
| LASR | SELL | 2025-08-18 | 2025-08-20 | $26.45 | $764K | +10.5% | +21.1% | +11.1% |
| LASR | SELL · 10b5-1 | 2025-06-13 | 2025-06-17 | $17.62 | $355K | +4.6% | +1.9% | +58.1% |
| LASR | SELL · 10b5-1 | 2025-03-03 | 2025-03-05 | $8.58 | $57K | +3.1% | -25.6% | +83.4% |
| LASR | SELL · 10b5-1 | 2024-12-02 | 2024-12-04 | $10.87 | $71K | +1.2% | -4.3% | -25.9% |
| LASR | SELL · 10b5-1 | 2024-09-03 | 2024-09-05 | $11.21 | $434K | -2.4% | +1.4% | +2.9% |
| LASR | SELL · 10b5-1 | 2024-06-03 | 2024-06-05 | $12.26 | $215K | -2.6% | -10.9% | -9.9% |
| LASR | SELL · 10b5-1 | 2024-03-18 | 2024-03-20 | $12.26 | $346K | -1.4% | -14.9% | -5.2% |
| LASR | SELL | 2023-12-01 | 2023-12-05 | $13.24 | $695K | +6.1% | -2.1% | -0.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.