Nancy Erba
CIK 1684663 · Chief Financial Officer · last filed 2026-07-02
"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
$6.31M
Companies
4
Total Filings
62
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 |
|---|---|---|---|---|---|---|---|
| PDFS | Director | 43,811 | $44.59 | $1.95M | -$116.6K | 10 | 2026-07-02 |
| POWI | Chief Financial Officer | 64,487 | $59.20 | $3.82M | $0 | 1 | 2026-02-04 |
| Infinera Corp (INFN) Delisted | Chief Financial Officer | 0 | $6.64 | $0 | $0 | 41 | 2025-03-03 |
| IMMR | Chief Financial Officer | 70,647 | $7.66 | $541.2K | -$294.5K | 8 | 2019-03-11 |
Recent Filings · Page 2 of 7
62 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 |
|---|---|---|---|---|---|
| 2024-09-06 | Infinera Corp (INFN) Delisted | Mixed | +3,565 | -$25.7K | EDGAR |
| 2024-07-09 | Infinera Corp (INFN) Delisted | Mixed | +4,528 | -$32.4K | EDGAR |
| 2024-07-03 | PDFS | Grant (A) | +4,382 | $0 | EDGAR |
| 2024-06-07 | Infinera Corp (INFN) Delisted | Mixed | +4,721 | -$16.5K | EDGAR |
| 2024-05-14 | Infinera Corp (INFN) Delisted | Mixed | +25,575 | -$81.9K | EDGAR |
| 2024-04-08 | Infinera Corp (INFN) Delisted | Mixed | +27,214 | -$98.3K | EDGAR |
| 2024-03-12 | Infinera Corp (INFN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-03-06 | Infinera Corp (INFN) Delisted | Mixed | +3,156 | -$23.4K | EDGAR |
| 2024-01-08 | Infinera Corp (INFN) Delisted | Mixed | +2,367 | -$11.5K | EDGAR |
| 2023-12-06 | Infinera Corp (INFN) Delisted | Mixed | +3,650 | -$17.2K | 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.