John S. Vieceli
CIK 2032947 · View on SEC EDGAR ↗
First SEC filing: Aug. 12, 2024 · Latest: Aug. 12, 2024
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 23, 2026 | QSI | S | 15,112 | $0.90 | $13,601 | 1,140,434 Direct | -1.31% | Disposed | -11.4% (price as of 2026-08-20) |
| June 22, 2026 | QSI | S | 15,111 | $0.96 | $14,507 | 1,155,546 Direct | -1.29% | Disposed | -17.0% (price as of 2026-08-20) |
| March 23, 2026 | QSI | S | 11,239 | $0.83 | $9,328 | 1,170,657 Direct | -0.95% | Disposed | -4.0% (price as of 2026-08-20) |
| March 20, 2026 | QSI | S | 10,758 | $0.85 | $9,144 | 1,181,896 Direct | -0.90% | Disposed | -6.2% (price as of 2026-08-20) |
| Sept. 23, 2025 | QSI | S | 9,843 | $1.64 | $16,143 | 822,900 Direct | -1.18% | Disposed | -51.4% (price as of 2026-08-20) |
| Sept. 22, 2025 | QSI | S | 9,843 | $1.68 | $16,536 | 832,743 Direct | -1.17% | Disposed | -52.5% (price as of 2026-08-20) |
| June 23, 2025 | QSI | S | 21,923 | $1.61 | $35,296 | 842,586 Direct | -2.54% | Disposed | -50.5% (price as of 2026-08-20) |
| March 21, 2025 | QSI | S | 4,317 | $1.39 | $6,001 | 864,509 Direct | -0.50% | Disposed | -42.6% (price as of 2026-08-20) |
| Dec. 23, 2024 | QSI | S | 4,306 | $1.29 | $5,555 | 160,493 Direct | -2.61% | Disposed | -38.2% (price as of 2026-08-20) |
| Sept. 24, 2024 | QSI | S | 2,117 | $0.93 | $1,969 | 164,799 Direct | -1.27% | Disposed | -14.3% (price as of 2026-08-20) |
| Sept. 23, 2024 | QSI | S | 2,192 | $0.95 | $2,082 | 166,916 Direct | -1.30% | Disposed | -16.1% (price as of 2026-08-20) |
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 12, 2026 | QSI | Stock Option (Right to Buy) | Class A Common Stock (468,508) | $0.98 | March 12, 2036 | 468,508 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 12, 2024 | QSI | Class A Common Stock | 6,535 | Direct |
| Aug. 12, 2024 | QSI | Class A Common Stock | 162,573 | Direct |
| Aug. 12, 2024 | QSI | Stock Option (right to buy)→ Class A Common Stock (186,044) | 186,044 | Direct |
| Aug. 12, 2024 | QSI | Stock Option (right to buy)→ Class A Common Stock (13,956) | 13,956 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
QSI
Ph.D.Chief Product Officer(7)| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $411,667 | — | $850,000 | — | $192,975 | — | $360 | $1,455,002 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.