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MARK STEWART SOBEY

CIK 1182387 · President, Lasers Segment · last filed 2023-07-05

MARK STEWART SOBEY is a President, Lasers Segment who has filed 74 SEC Form 4 insider transactions across 2 companies since 2010. The most recent filing, for COHR, was dated Feb 7, 2024. Across all open-market trades the lifetime net is −$12.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $46.3M 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

$46.30M

Companies

2

Total Filings

74

Lifetime Open-Market Net

-$12.16M

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
COHR President, Lasers Segment 189,688 $244.11 $46.30M -$12.16M 69 2023-07-05
COHERENT CORP. (IIVIP) Delisted President, Lasers Segment 195,752 $187.51 $36.71M $0 3 2022-08-30

Recent Filings

74 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
2024-02-07 COHR Notice (144) −25,000 -$1.45M EDGAR
2024-02-06 COHR Notice (144) −25,000 -$1.24M EDGAR
2023-07-05 COHR Tax (F) −6,064 $0 EDGAR
2022-08-30 COHERENT CORP. (IIVIP) Delisted Grant (A) +24,861 $0 EDGAR
2022-07-12 COHERENT CORP. (IIVIP) Delisted Tax (F) −96,319 -$4.61M EDGAR
2022-07-06 COHERENT CORP. (IIVIP) Delisted Grant (A) +40,709 $0 EDGAR
2022-07-01 COHR Disp (D) −35,421 $0 EDGAR
2021-12-16 COHR Tax (F) −16,959 -$4.47M EDGAR
2021-11-17 COHR Tax (F) −849 -$219.4K EDGAR
2021-11-16 COHR Mixed +763 -$544.2K EDGAR
Showing 1–10 of 74
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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.