Derek Bell
CIK 1182407 · VP of Engineering · last filed 2013-05-17
"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
$4.28M
Companies
1
Total Filings
123
Lifetime Open-Market Net
-$12.27M
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 |
|---|---|---|---|---|---|---|---|
| POWI | VP of Engineering | 57,504 | $74.39 | $4.28M | -$12.27M | 123 | 2013-05-17 |
Recent Filings · Page 5 of 13
123 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 |
|---|---|---|---|---|---|
| 2011-04-28 | POWI | Mixed | — | -$94.8K | EDGAR |
| 2011-03-09 | POWI | Mixed | — | -$20.9K | EDGAR |
| 2011-03-01 | POWI | Mixed | — | -$21.7K | EDGAR |
| 2011-02-23 | POWI | Mixed | — | -$23.2K | EDGAR |
| 2011-02-16 | POWI | Mixed | — | -$23.0K | EDGAR |
| 2011-02-10 | POWI | Tax (F) | −3,034 | -$125.9K | EDGAR |
| 2011-02-09 | POWI | Mixed | — | -$95.8K | EDGAR |
| 2011-02-07 | POWI | Mixed | — | -$138.6K | EDGAR |
| 2011-01-27 | POWI | Grant (A) | +6,400 | $0 | EDGAR |
| 2011-01-20 | POWI | Mixed | — | -$22.0K | 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.