Nancy Erba
First SEC filing: Feb. 4, 2026 · Latest: Feb. 4, 2026
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 1, 2026 | PDFS | A | 2,689 | · | · | 11,943 Direct | +29.06% | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2026 | POWI | A | 64,487 | · | · | 64,487 Direct | · | Acquired | (price as of 2026-10-02) |
| July 1, 2025 | PDFS | A | 7,429 | · | · | 27,383 Direct | +37.23% | Acquired | (price as of 2026-10-02) |
| Dec. 11, 2024 | PDFS | S | 2,000 | $30.81 | $61,620 | 13,739 Indirect | -12.71% | Disposed | 80.1% (price as of 2026-10-02) |
| July 1, 2024 | PDFS | A | 4,382 | · | · | 19,954 Direct | +28.14% | Acquired | (price as of 2026-10-02) |
| Nov. 29, 2023 | PDFS | S | 1,800 | $30.57 | $55,026 | 15,739 Indirect | -10.26% | Disposed | 81.6% (price as of 2026-10-02) |
| July 1, 2023 | PDFS | A | 3,354 | · | · | 33,111 Direct | +11.27% | Acquired | (price as of 2026-10-02) |
| July 1, 2022 | PDFS | A | 7,212 | · | · | 29,757 Direct | +31.99% | Acquired | (price as of 2026-10-02) |
| July 1, 2021 | PDFS | A | 4,688 | · | · | 22,545 Direct | +26.25% | Acquired | (price as of 2026-10-02) |
| July 1, 2019 | PDFS | A | 4,688 | · | · | 17,857 Direct | +35.60% | Acquired | (price as of 2026-10-02) |
| July 1, 2019 | PDFS | A | 13,169 | · | · | 13,169 Direct | · | Acquired | (price as of 2026-10-02) |
| March 8, 2019 | IMMR | S 10b5-1 | 3,554 | $8.32 | $29,569 | 67,093 Direct | -5.03% | Disposed | -11.2% (price as of 2026-10-02) |
| March 7, 2019 | IMMR | M | 10,000 | · | · | 70,647 Direct | +16.49% | Acquired | (price as of 2026-10-02) |
| March 7, 2019 | IMMR | M | 10,000 | · | · | 20,000 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| Feb. 27, 2019 | IMMR | S 10b5-1 | 23,740 | $8.21 | $194,905 | 36,907 Direct | -39.14% | Disposed | -10.0% (price as of 2026-10-02) |
| Feb. 26, 2019 | IMMR | M | 56,946 | · | · | 60,647 Direct | +1538.67% | Acquired | (price as of 2026-10-02) |
| Feb. 26, 2019 | IMMR | M | 56,946 | · | · | 60,647 Direct | -48.43% | Disposed | (price as of 2026-10-02) |
| Feb. 26, 2019 | IMMR | M | 56,946 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 6, 2019 | IMMR | S 10b5-1 | 2,500 | $10.00 | $25,000 | 3,701 Direct | -40.32% | Disposed | -26.1% (price as of 2026-10-02) |
| March 8, 2018 | IMMR | S 10b5-1 | 62 | $12.12 | $751 | 6,201 Direct | -0.99% | Disposed | -39.0% (price as of 2026-10-02) |
| March 8, 2018 | IMMR | S 10b5-1 | 3,737 | $11.87 | $44,358 | 6,263 Direct | -37.37% | Disposed | -37.7% (price as of 2026-10-02) |
| March 7, 2018 | IMMR | M | 10,000 | · | · | 30,000 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| March 7, 2018 | IMMR | M | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 26, 2018 | IMMR | A | 56,946 | · | · | 56,946 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 26, 2018 | IMMR | A | 80,000 | · | · | 80,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 2, 2017 | IMMR | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 14, 2016 | IMMR | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 7, 2019 | IMMR | Restricted Stock Units | Common Stock | $0.00 | · | 10,000 | Disposed |
| Feb. 26, 2019 | IMMR | Restricted Stock Units | Common Stock | $0.00 | · | 56,946 | Disposed |
| March 7, 2018 | IMMR | Restricted Stock Units | Common Stock | $0.00 | · | 10,000 | Disposed |
| Feb. 26, 2018 | IMMR | Restricted Stock Units | Common Stock | $0.00 | · | 56,946 | Acquired |
| Feb. 26, 2018 | IMMR | Non-Qualified Stock Option (right to buy) | Common Stock | $11.84 | Feb. 26, 2025 | 80,000 | Acquired |
| June 2, 2017 | IMMR | Restricted Stock Units | Common Stock | $0.00 | · | 40,000 | Acquired |
| Oct. 14, 2016 | IMMR | Non-Qualified Stock Option (right to buy) | Common Stock | $7.79 | Oct. 14, 2023 | 150,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2019 | $73,564 | · | · | · | · | · | · | $73,564 |
| 2018 | $321,487 | $10,000 | $674,241 | $438,192 | $293,167 | · | · | $1,737,087 |
| 2017 | $309,289 | · | $346,000 | · | · | · | · | $655,289 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.