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John Sakys

CIK 1197710 · CFO · last filed 2026-06-23

John Sakys is a CFO who has filed 66 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for MLAB, was dated Jun 23, 2026. Across all open-market trades the lifetime net is −$8.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.0M 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

$2.01M

Companies

2

Total Filings

66

Lifetime Open-Market Net

-$8.47M

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
MLAB CFO 19,835 $101.10 $2.01M -$8.47M 60 2026-06-23
ISONICS CORP (ISOND) Delisted COO, Interim CEO 1,143 — — $0 1 2007-02-16

Recent Filings

66 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
2026-06-23 MLAB Mixed +3,247 $324.6K EDGAR
2026-06-22 MLAB Notice (144) −2,827 -$253.0K EDGAR
2026-06-17 MLAB Sell (S) −1,223 -$123.8K EDGAR
2026-06-16 MLAB Notice (144) −1,223 -$123.8K EDGAR
2026-06-16 MLAB Mixed +2,717 $282.8K EDGAR
2025-06-25 MLAB Mixed +582 $55.8K EDGAR
2025-06-20 MLAB Mixed +1,597 $148.5K EDGAR
2025-06-18 MLAB Grant (A) — $0 EDGAR
2025-06-18 MLAB Mixed +819 -$62.3K EDGAR
2025-06-16 MLAB Notice (144) −642 -$62.3K EDGAR
Showing 1–10 of 66
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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.