The SEC lists Quantum-Si Inc under CIK 0001816431, in measuring and controlling devices, nec. We track it alongside the rest of the Information Technology sector.
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.75 to $0.762 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7511 to $0.7779 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.75 to $0.762 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7511 to $0.7779 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.75 to $0.762 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7511 to $0.7779 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9212 to $1.005 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.88 to $0.9291 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9212 to $1.005 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.88 to $0.9291 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9212 to $1.005 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.88 to $0.9291 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9212 to $1.005 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.88 to $0.9291 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9811 to $1.05 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9763 to $1.04 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9811 to $1.05 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.9763 to $1.04 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.8314 to $0.8718 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7973 to $0.8525 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.8314 to $0.8718 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7973 to $0.8525 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.8314 to $0.8718 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7973 to $0.8525 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.8314 to $0.8718 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F3 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $0.7973 to $0.8525 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange… Full note on SEC EDGAR
Footnote F1 (shares): The grant consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs shall vest in four equal annual installments beginning on April 20, 2027 until fully vested, subject to continued service through the… Full note on SEC EDGAR
Footnote F1 (shares): The grant consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs shall vest in 16 equal quarterly installments beginning on June 20, 2026 until fully vested, subject to continued service through the… Full note on SEC EDGAR
Footnote F1 (shares): The grant consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs shall vest in four equal annual installments beginning on April 20, 2027 until fully vested, subject to continued service through the… Full note on SEC EDGAR
Footnote F1 (shares): The grant consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs shall vest in 16 equal quarterly installments beginning on June 20, 2026 until fully vested, subject to continued service through the… Full note on SEC EDGAR
Footnote F1 (price): Represents the weighted average purchase price per share. The shares were purchased at prices ranging from $0.8906 to $0.9735 per share. Full information regarding the number of shares purchased at each price shall be provided upon request to the staff of the U.S. Securities and… Full note on SEC EDGAR
Footnote F1 (price): Represents the weighted average purchase price per share. The shares were purchased at prices ranging from $0.9051 to $0.9730 per share. Full information regarding the number of shares purchased at each price shall be provided upon request to the staff of the U.S. Securities and… Full note on SEC EDGAR
Footnote F1 (shares): This sale was effected in connection with estate planning pursuant to a 10b5-1 trading plan established by Dr. Rothberg on September 13, 2024.
Footnote F2 (price): Represents the weighted average sales price per share. The shares sold at prices ranging from $3.07 to $3.09 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission… Full note on SEC EDGAR
An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
Quantum-Si Inc (QSI) had 3 insider filings in the last 90 days, with the most recent on 2026-09-23. The full record for QSI runs to 40 Form 4 filings, the earliest from 2024-12-26. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying QSI stock?
No insider purchases of QSI were filed in the last 90 days. 2 purchases are on record for this company.
How many insiders are selling QSI stock?
6 insider sales of QSI were filed in the last 90 days, totaling $39K.
Where can I see QSI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects QSI Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Jeffrey Alan Hawkins - OfficerOpen-market sale$15K
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Scott Mendel
Jonathan M. Rothberg
Charles R. Kummeth
