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 $42.0M across reported positions. 10 SEC filings were submitted jointly with VIAVI SOLUTIONS INC.
"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.
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 monthDollar 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
latestMost 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
Holdings By Company
| 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
74 filings| 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 |
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.