SIMON BIDDISCOMBE
CIK 1239891 · Executive Vice Chair · last filed 2026-06-05
"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.
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Disclosed Exposure
$6.7K
Companies
5
Total Filings
87
Lifetime Open-Market Net
-$1.90M
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 |
|---|---|---|---|---|---|---|---|
| MVIS | Executive Vice Chair | 27,150 | $0.25 | $6.7K | -$206.6K | 27 | 2026-06-05 |
| MOBILEIRON, INC. (MOBL) Delisted | President and CEO | 1,235,728 | — | — | -$1.61M | 34 | 2020-11-24 |
| CONCENTRIX SERVICESOURCE INC. (SREV) Delisted | Chief Financial Officer | 200,000 | $1.50 | $300.0K | $0 | 1 | 2014-10-14 |
| QLOGIC CORP (QLGC) Delisted | President and CEO | 57,978 | — | — | $0 | 14 | 2012-11-15 |
| MINDSPEED TECHNOLOGIES, INC (MSPD) Delisted | Sr. VP, CFO, Treasurer & Sec. | 53,670 | — | — | -$84.3K | 7 | 2008-03-13 |
Recent Filings · Page 2 of 9
87 filingsInsider 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 |
|---|---|---|---|---|---|
| 2024-06-07 | MVIS | Grant (A) | — | $0 | EDGAR |
| 2024-05-17 | MVIS | Exer (M) | +11,439 | $0 | EDGAR |
| 2024-03-01 | MVIS | Exer (M) | +11,439 | $0 | EDGAR |
| 2023-12-01 | MVIS | Exer (M) | +11,439 | $0 | EDGAR |
| 2023-11-14 | MVIS | Grant (A) | +5,076 | $10.0K | EDGAR |
| 2023-09-06 | MVIS | Exer (M) | +11,439 | $0 | EDGAR |
| 2023-05-18 | MVIS | Mixed | +7,492 | $0 | EDGAR |
| 2023-03-02 | MVIS | Exer (M) | +7,492 | $0 | EDGAR |
| 2022-12-02 | MVIS | Exer (M) | +7,492 | $0 | EDGAR |
| 2022-09-06 | MVIS | Exer (M) | +7,492 | $0 | EDGAR |
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.
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.