Joseph John Corso
CIK 1914846 · Chief Financial Officer · last filed 2026-06-05
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$10.72M
Companies
1
Total Filings
70
Lifetime Open-Market Net
-$14.87M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| LASR | Chief Financial Officer | 169,915 | $63.10 | $10.72M | -$14.87M | 41 | 2026-06-05 |
Recent Filings · Page 2 of 7
70 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-09 | LASR | Sell (S) | −25,328 | -$1.55M | EDGAR |
| 2026-03-06 | LASR | Notice (144) | −12,290 | -$742.2K | EDGAR |
| 2026-03-05 | LASR | Notice (144) | −13,038 | -$807.9K | EDGAR |
| 2025-12-17 | LASR | Sell (S) | −66,075 | -$2.40M | EDGAR |
| 2025-12-15 | LASR | Notice (144) | −66,075 | -$2.40M | EDGAR |
| 2025-12-05 | LASR | Sell (S) | −4,127 | -$139.4K | EDGAR |
| 2025-12-03 | LASR | Notice (144) | −4,127 | -$139.4K | EDGAR |
| 2025-09-08 | LASR | Sell (S) | −7,700 | -$226.5K | EDGAR |
| 2025-09-05 | LASR | Notice (144) | −3,588 | -$106.7K | EDGAR |
| 2025-09-04 | LASR | Notice (144) | −4,112 | -$119.8K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.