Who
John S. Vieceli
Chief Product Officer
Company insider
Files Form 4 as: Chief Product Officer, Quantum-Si.
In numbers
- Trades disclosed
- 21
- Buys
- 0
- Sells
- 12
- Bought
- $0
- Sold
- $205K
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 23 Sep 2024
- Last trade
- 23 Jun 2026
- Last filed
- 24 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 23 Jun 2026filed 24 Jun 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $14K15,112 at $0.899 | filing |
| 23 Jun 2026filed 24 Jun 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $14K15,112 at $0.90 | filing |
| 22 Jun 2026filed 24 Jun 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $14K15,111 at $0.9574 | filing |
| 22 Jun 2026filed 24 Jun 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $15K15,111 at $0.96 | filing |
| 23 Mar 2026filed 24 Mar 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $9,29011,239 at $0.8266 | filing |
| 23 Mar 2026filed 24 Mar 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $9,32811,239 at $0.83 | filing |
| 20 Mar 2026filed 24 Mar 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $9,12610,758 at $0.8483 | filing |
| 20 Mar 2026filed 24 Mar 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $9,14410,758 at $0.85 | filing |
| 12 Mar 2026filed 16 Mar 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Code A | —391,681 at $0.00 | filing |
| 12 Mar 2026filed 16 Mar 2026 | QSI Quantum-Sioption or derivative · Life-science tools | SEC FORM 4 Code A | —468,508 at $0.00 | filing |
| 12 Mar 2026filed 16 Mar 2026 | QSI Quantum-Sioption or derivative · Life-science tools | SEC FORM 4 Code A | —468,508 at $0.00 | filing |
| 12 Mar 2026filed 16 Mar 2026 | QSI Quantum-SiLife-science tools | SEC FORM 4 Code A | —391,681 at $0.00 | filing |
| 22 Dec 2025filed 22 Dec 2025 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $28K21,927 at $1.28 | filing |
| 23 Sep 2025filed 24 Sep 2025 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $16K9,843 at $1.64 | filing |
| 22 Sep 2025filed 24 Sep 2025 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $17K9,843 at $1.68 | filing |
| 23 Jun 2025filed 24 Jun 2025 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $35K21,923 at $1.61 | filing |
| 21 Mar 2025filed 24 Mar 2025 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $6,0014,317 at $1.39 | filing |
| 12 Mar 2025filed 14 Mar 2025 | QSI Quantum-SiLife-science tools | SEC FORM 4 Code A | —708,333 at $0.00 | filing |
| 23 Dec 2024filed 26 Dec 2024 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $5,5554,306 at $1.29 | filing |
| 24 Sep 2024filed 25 Sep 2024 | QSI Quantum-SiLife-science tools | SEC FORM 4 Sold | $1,9692,117 at $0.93 | filing |
News
Quantum-Si (NASDAQ:QSI) Stock Rating Lowered by Wall Street ZenQSI · tickerreport.com · 21 Oct 2026
0 headlines in the last 90 days name John S. Vieceli; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.