Mark Stewart Sobey

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

"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.

Disclosed Exposure

$42.02M

Companies

Total Filings

Lifetime Open-Market Net

-$12.16M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

COHR price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest

OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Related Filers

VIAVI SOLUTIONS INC. — 10 joint filings, latest 2005-10-28

II-VI INC — 7 joint filings, latest 2024-02-07

Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses.

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	$221.50	$42.02M	-$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 · Page 4 of 8

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
2017-05-24	COHR	Sell (S)	−4,904	-$1.19M	EDGAR
2016-11-21	COHR	Sell (S)	−4,671	-$602.6K	EDGAR
2016-11-17	COHR	Grant (A)	—	$0	EDGAR
2016-11-15	COHR	Mixed	+1,371	-$188.5K	EDGAR
2016-11-10	COHR	Mixed	+662	-$999.6K	EDGAR
2016-11-07	COHR	Mixed	+1,531	-$105.8K	EDGAR
2016-08-24	COHR	Sell (S)	−4,042	-$434.9K	EDGAR
2015-11-17	COHR	Mixed	+1,947	-$71.6K	EDGAR
2015-11-10	COHR	Mixed	+1,426	-$54.8K	EDGAR
2015-11-05	COHR	Mixed	+1,531	-$52.0K	EDGAR

Showing 31–40 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.