Nancy Erba
CIK 1684663 · Chief Financial Officer · last filed 2026-02-04
"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
$8.15M
Companies
4
Total Filings
59
Lifetime Open-Market Net
-$411.1K
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 | Chief Financial Officer | 64,487 | $78.38 | $5.05M | $0 | 1 | 2026-02-04 |
| PDFS | Director | 41,122 | $64.14 | $2.64M | -$116.6K | 9 | 2025-07-02 |
| Infinera Corp (INFN) Delisted | Chief Financial Officer | 0 | $6.64 | $0 | $0 | 41 | 2025-03-03 |
| IMMR | Chief Financial Officer | 70,647 | $6.54 | $462.0K | -$294.5K | 8 | 2019-03-11 |
Recent Filings · Page 6 of 6
59 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-07-03 | PDFS | Grant (A) | +13,169 | $0 | EDGAR |
| 2019-03-11 | IMMR | Mixed | +6,446 | -$29.6K | EDGAR |
| 2019-03-01 | IMMR | Exer (M) | +56,946 | $0 | EDGAR |
| 2019-02-28 | IMMR | Mixed | −80,686 | -$194.8K | EDGAR |
| 2019-02-08 | IMMR | Sell (S) | −2,500 | -$25.0K | EDGAR |
| 2018-03-09 | IMMR | Mixed | +6,201 | -$45.1K | EDGAR |
| 2018-02-28 | IMMR | Grant (A) | — | $0 | EDGAR |
| 2017-06-06 | IMMR | Grant (A) | — | $0 | EDGAR |
| 2016-10-17 | IMMR | Grant (A) | — | $0 | EDGAR |
Showing 51–59 of 59
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Page 6 of 6
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.