Jeffrey G Winzeler
CIK 1312143 · View on SEC EDGAR ↗
First SEC filing: June 4, 2026 · Latest: June 4, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 14, 2026 | AMBQ | S | 25,918 | $69.90 | $1,811,668 | 94,477 Direct | -21.53% | Disposed | -16.3% (price as of 2026-08-21) |
| May 14, 2026 | AMBQ | S | 82 | $70.65 | $5,793 | 94,395 Direct | -0.09% | Disposed | -17.2% (price as of 2026-08-21) |
| March 13, 2019 | MRAM | S | 819 | $8.45 | $6,921 | 15,115 Direct | -5.14% | Disposed | 104.3% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| June 2, 2026 | AMBQ | Stock Option (Right to Buy) | Common Stock (5,952) | $16.80 | June 9, 2035 | 5,952 | Disposed |
| May 15, 2026 | AMBQ | Stock Option (Right to Buy) | Common Stock (5,952) | $16.80 | June 9, 2035 | 5,952 | Disposed |
| May 14, 2026 | AMBQ | Stock Option (Right to Buy) | Common Stock (26,000) | $16.80 | June 9, 2035 | 26,000 | Disposed |
| Feb. 11, 2019 | MRAM | Employee Stock Option (Right to Buy) | Common Stock (20,000) | $6.35 | Feb. 10, 2029 | 20,000 | Acquired |
| March 13, 2018 | MRAM | Employee Stock Option (Right to Buy) | Common Stock (40,000) | $9.12 | March 12, 2028 | 40,000 | Acquired |
| Dec. 16, 2016 | MRAM | Employee Stock Option (Right to Buy) | Common Stock (24,313) | $6.63 | July 11, 2026 | 24,313 | Acquired |
| Dec. 16, 2016 | MRAM | Employee Stock Option (Right to Buy) | Common Stock (24,313) | $15.86 | July 11, 2026 | 24,313 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 29, 2025 | AMBQ | Stock Option (Right to Buy)→ Common Stock (142,857) | 142,857 | Direct |
| Oct. 7, 2016 | MRAM | Employee Stock Option (Right to Buy)→ Common Stock (42,307) | 42,307 | Direct |
| Oct. 7, 2016 | MRAM | Employee Stock Option (Right to Buy)→ Common Stock (24,313) | 24,313 | Direct |
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 | $287,373 | — | — | — | $87,610 | — | $700 | $484,789 |
| 2018 | $269,200 | — | — | — | $78,957 | — | $1,219 | $630,224 |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $270,979 | $360,073 | — | — | — | — | $20,000 | $4,207,118 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.