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Joseph John Corso

CIK 1914846 · Chief Financial Officer · last filed 2026-06-05

Joseph John Corso is a Chief Financial Officer who has filed 70 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing shows the insider sold $577.7K of LASR on Jun 5, 2026. Across all open-market trades the lifetime net is −$14.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $10.7M across reported positions.

"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

70 filings
Insider 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
2026-06-05 LASR Sell (S) −7,657 -$577.7K EDGAR
2026-06-04 LASR Notice (144) −3,817 -$278.3K EDGAR
2026-06-03 LASR Notice (144) −3,840 -$299.5K EDGAR
2026-05-21 LASR Sell (S) −55,719 -$3.88M EDGAR
2026-05-20 LASR Notice (144) −35,476 -$2.52M EDGAR
2026-05-19 LASR Notice (144) −20,243 -$1.39M EDGAR
2026-05-19 LASR Sell (S) −38,020 -$2.77M EDGAR
2026-05-18 LASR Notice (144) −19,575 -$1.39M EDGAR
2026-05-15 LASR Notice (144) −18,445 -$1.39M EDGAR
2026-05-07 LASR Grant (A) +100,000 $0 EDGAR
Showing 1–10 of 70
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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.