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Nancy Erba

CIK 1684663 · Chief Financial Officer · last filed 2026-07-02

Nancy Erba is a Chief Financial Officer who has filed 62 SEC Form 4 insider transactions across 4 companies since 2016. The most recent filing, for PDFS, was dated Jul 2, 2026. Across all open-market trades the lifetime net is −$411.1K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.3M across reported positions.

"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

62 filings
Insider 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
2026-07-02 PDFS Grant (A) +2,689 $0 EDGAR
2026-02-04 POWI Grant (A) +64,487 $0 EDGAR
2025-07-02 PDFS Grant (A) +7,429 $0 EDGAR
2025-03-03 Infinera Corp (INFN) Delisted Mixed −576,222 $0 EDGAR
2025-01-15 Infinera Corp (INFN) Delisted Grant (A) — $0 EDGAR
2025-01-07 Infinera Corp (INFN) Delisted Mixed +4,300 -$36.2K EDGAR
2024-12-12 PDFS Sell (S) −2,000 -$61.6K EDGAR
2024-12-11 PDFS Notice (144) −2,000 -$61.6K EDGAR
2024-12-06 Infinera Corp (INFN) Delisted Mixed +3,564 -$27.5K EDGAR
2024-10-08 Infinera Corp (INFN) Delisted Mixed +4,528 -$35.5K EDGAR
Showing 1–10 of 62
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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.