Every Form 4 that Quantum-Si Incorporated (QSIAW) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow QSIAW and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full QSIAW filings page.
Quantum-Si Inc general counsel and corporate secretary Christian LaPointe reported two small open-market sales of Class A common stock tied to tax withholding on vested restricted stock units. He sold 7,794 shares on June 22 at a weighted average price of $0.9574 per share and 7,794 shares on June 23 at a weighted average price of $0.8990 per share, for a total of 15,588 shares. The sales were executed under a mandatory sell-to-cover provision for federal, state and local tax withholding and were not discretionary. After these transactions, LaPointe directly holds 1,182,429 Quantum-Si shares.
Quantum-Si Inc Chief Financial Officer Jeffry R. Keyes reported sales of a total of 8,233 shares of Class A Common Stock on June 22 and 23, 2026. According to the disclosure, these transactions were executed under a mandatory sell-to-cover provision to satisfy federal, state and local tax withholding on vested restricted stock units. Following the sales, he directly holds 1,724,349 shares of Class A Common Stock.
Quantum-Si Inc Chief Product Officer John S. Vieceli reported sales of 30,223 shares of Class A Common Stock to cover tax obligations tied to vesting restricted stock units. The transactions occurred on June 22 and June 23 in open-market sales under a mandatory sell-to-cover provision that was set at the grant date and cannot be altered by the individual.
Shares were sold at weighted average prices of $0.9574 and $0.899 per share across price ranges described in the footnotes. After these sales, Vieceli directly holds 1,140,434 shares of Quantum-Si Class A Common Stock, indicating he retains a substantial equity position.
Quantum-Si Inc President & CEO Jeffrey Alan Hawkins reported routine share sales tied to tax withholding on vested equity. On two days, he sold a total of 22,621 shares of Class A Common Stock in open-market transactions under a mandatory sell-to-cover provision for federal, state and local taxes related to previously granted restricted stock units. The sales occurred at weighted average prices around $0.96 and $0.90 per share, and he held 3,669,802 shares directly after the transactions.
Quantum-Si Inc director Brigid Makes reported a new stock option grant and her current share holdings. She received a grant of 251,185 Stock Options (right to buy) Quantum-Si Class A Common Stock at an exercise price of $0.8539 per share, expiring on May 18, 2036. According to the footnote, the shares underlying this option vest on the date of Quantum-Si’s next regular annual stockholders meeting, subject to her continued service through that vesting date. Following this grant, she holds 20,512 shares of Class A Common Stock directly, along with the 251,185 options.
Quantum-Si Inc director Ruth A. Fattori reported an equity compensation grant in the form of stock options. She received options covering 251,185 shares of Class A Common Stock at an exercise price of $0.8539 per share, expiring on May 18, 2036.
The options relate to 251,185 underlying Class A shares and were granted as a “right to buy.” According to the footnote, the shares underlying this option vest on the date of Quantum-Si’s next regular annual stockholders meeting, subject to her continued service. Following the reported transactions, she directly holds 170,512 shares of Class A Common Stock.
Quantum-Si Inc director Amir Jafri reported a new stock option grant. He received an option covering 251,185 shares of Class A Common Stock at an exercise price of $0.8539 per share, expiring on May 18, 2036. The shares underlying this option vest on the date of the issuer's next regular annual stockholders meeting, subject to continued service through that date. Following the reported transactions, he holds 115,942 shares of Class A Common Stock directly, with no open-market purchases or sales reported.
Quantum-Si Inc director Paula Dowdy reported a new stock option grant. She received a Stock Option (right to buy) covering 251,185 shares of Class A Common Stock at a conversion or exercise price of $0.8539 per share, expiring on May 18, 2036.
The filing states that the shares underlying this option vest on the date of Quantum-Si’s next regular annual stockholders meeting, subject to her continued service through that vesting date. After the reported transactions, she directly beneficially owns 269,107 shares of Class A Common Stock.
Quantum-Si Inc director John P. Kenny received a new stock option award, giving him the right to buy 251,185 shares of Class A Common Stock at an exercise price of $0.8539 per share. This option expires on May 18, 2036 and the underlying shares vest on the date of the company’s next regular annual stockholders meeting, subject to his continued service through that vesting date. Following the reported transactions, he directly holds 114,285 shares of Class A Common Stock in addition to this new option grant.
Quantum-Si Inc director Kevin Rakin received a grant of stock options for 251,185 shares of Class A common stock at an exercise price of $0.8539 per share. These options expire on May 18, 2036 and vest on the date of the issuer's next regular annual stockholders meeting, subject to continued service.
Following the reported transactions, Rakin holds 20,512 Class A shares directly and 1,200,000 shares indirectly through investment entities with which he shares voting and investment discretion. The new option award adds to this equity exposure as compensation rather than an open‑market purchase.
Quantum-Si Inc director Scott Mendel reported an equity award. He received a grant of 251,185 stock options to buy Class A Common Stock at an exercise price of $0.8539 per share, expiring on May 18, 2036.
The options cover 251,185 underlying Class A shares and vest on the date of Quantum-Si’s next regular annual stockholders meeting, subject to his continued service through that vesting date. After this filing, he directly holds 141,843 shares of Class A Common Stock and 251,185 options.
ROTHBERG JONATHAN M reported acquisition or exercise transactions in this Form 4 filing.
Quantum-Si Inc director and 10% owner Jonathan M. Rothberg reported a grant of 251,185 stock options, each exercisable for one share of Class A Common Stock at $0.8539 per share. The options vest on the date of the issuer’s next regular annual stockholders meeting, subject to his continued service.
After this grant, he holds 2,568,443 Class A Common Stock shares directly and has additional indirect holdings, including 1,993,750 Class B shares through 4C Holdings V, LLC and 17,943,750 Class B shares through 4C Holdings I, LLC. Some shares are held by entities managed by Dr. Rothberg and by family members, and he disclaims beneficial ownership of shares held by his spouse and by 23rd Century Capital LLC.
Quantum-Si Inc director Charles R. Kummeth reported a new equity award and updated holdings. He received a grant of 251,185 stock options, each giving the right to buy one share of Class A Common Stock at an exercise price of $0.8539 per share. These options expire on May 18, 2036 and the shares underlying the option vest on the date of the issuer's next regular annual stockholders meeting, subject to continued service through that vesting date. Following this filing, he directly holds 855,000 shares of Class A Common Stock, alongside the newly granted options. This award is compensation-related and does not reflect an open-market purchase or sale.
Quantum-Si Inc Chief Financial Officer Jeffry R. Keyes reported mandatory tax-related share sales. He sold 37,382 shares of Class A Common Stock on April 20, 2026 at a weighted average price of $1.0064 per share and 37,381 shares on April 21, 2026 at a weighted average price of $0.9950 per share.
According to the footnotes, both transactions were executed under a mandatory Quantum-Si sell-to-cover provision to satisfy federal, state and local withholding taxes associated with vesting restricted stock units, and he could not alter this provision. After these transactions, he directly owns 1,732,582 Class A shares.
Quantum-Si Inc President & CEO Jeffrey Alan Hawkins reported two open-market sales of Class A Common Stock tied to tax withholding. He sold 83,712 shares on April 20, 2026 at a weighted average price of $1.0064 per share and another 83,712 shares on April 21, 2026 at a weighted average price of $0.9950 per share. According to the disclosure, these transactions were executed under a mandatory sell-to-cover provision to satisfy federal, state and local withholding taxes triggered by the vesting of previously granted restricted stock units. After these sales, Hawkins directly owned 3,692,423 shares of Quantum-Si Class A Common Stock.
Quantum-Si Inc Chief Financial Officer Jeffry R. Keyes reported routine tax-related stock sales. He sold a total of 8,655 shares of Class A Common Stock in open-market transactions on March 20 and March 23 at weighted average prices around $0.83 per share.
According to the footnotes, these sales were made under a mandatory Quantum-Si sell-to-cover provision to satisfy federal, state and local withholding taxes tied to the vesting of previously granted restricted stock units. After these transactions, he continued to hold 1,807,345 shares directly.
Quantum-Si Inc’s General Counsel and Corporate Secretary, Christian LaPointe, reported two open-market sales totaling 11,959 shares of Class A Common Stock. According to the disclosure, these sales were mandatory sell-to-cover transactions for federal, state, and local tax withholding on vested restricted stock units. LaPointe continues to hold 1,198,017 shares directly after the transactions.
Quantum-Si Chief Product Officer John S. Vieceli reported mandatory sales of 21,997 shares of Class A common stock to cover tax withholding on vested RSUs. The shares were sold in open-market transactions on March 20 and March 23 at weighted average prices around $0.83–$0.85 per share.
The filing explains these sales occurred under a pre-set, mandatory sell-to-cover provision established when the restricted stock units were granted, which he cannot alter. After these transactions, he directly holds 1,170,657 shares, so the sale represents a small portion of his overall stake.
Quantum-Si Inc President & CEO Jeffrey Alan Hawkins reported two open-market sales of Class A Common Stock totaling 23,777 shares. The sales occurred on March 20 and March 23 at weighted average prices of $0.8483 and $0.8266 per share, respectively. A footnote explains these transactions represent a mandatory sell-to-cover provision for federal, state and local tax withholding tied to the vesting of previously granted restricted stock units, which Hawkins cannot change. After these transactions, he directly holds 3,859,847 shares of Quantum-Si Class A Common Stock.
Quantum-Si Inc reported that Chief Financial Officer Jeffry R. Keyes received new equity awards. He was granted stock options for 780,847 shares of Class A common stock at an exercise price of $0.976 per share, expiring on March 12, 2036.
Keyes was also granted 652,803 restricted stock units, increasing his direct common stock holdings to 1,816,000 shares after the grant. The RSUs vest in four equal annual installments beginning on April 20, 2027, while the option vests in equal quarterly installments starting on June 20, 2026, in each case subject to his continued service.
Quantum-Si Inc Chief Product Officer John S. Vieceli received new equity awards. On March 12, 2026, he was granted options to buy 468,508 shares of Class A common stock at an exercise price of $0.976 per share, vesting in equal quarterly installments beginning on June 20, 2026 until fully vested, subject to continued service.
He also received 391,681 restricted stock units, each representing one share of common stock upon vesting, on the same vesting schedule starting June 20, 2026. Following these awards, Vieceli directly holds 1,192,654 shares of Class A common stock. These are compensation-related grants rather than open-market purchases or sales.
Quantum-Si Inc President & CEO Jeffrey Alan Hawkins reported equity compensation awards rather than open-market trades. He received a stock option covering 1,561,695 shares of Class A common stock at an exercise price of $0.976 per share, expiring on March 12, 2036. The option vests in equal quarterly installments beginning on June 20, 2026, subject to continued service. He also received 1,305,606 restricted stock units, each representing one share of common stock, which vest in four equal annual installments starting on April 20, 2027, subject to continued service. Following the RSU grant, his direct holdings of Class A common stock increased to 3,883,624 shares.
Quantum-Si Inc reported that its General Counsel and Corporate Secretary, Christian LaPointe, received new equity awards. He was granted 261,121 shares of Class A common stock in the form of restricted stock units and a stock option for 312,339 shares at an exercise price of $0.976 per share. Both the RSUs and the option vest in equal quarterly installments beginning on June 20, 2026, subject to continued service. Following these awards, LaPointe directly owns 1,209,976 shares of Class A common stock.
Quantum-Si Inc director Charles R. Kummeth reported an open-market purchase of 500,000 shares of Class A common stock on March 5, 2026. The weighted average purchase price was $0.9196 per share, with individual trades executed between $0.8906 and $0.9735 per share. Following this transaction, he directly holds 855,000 shares of Quantum-Si common stock.
Quantum-Si Inc director Paula Dowdy purchased Class A common stock in an open-market transaction. On March 5, 2026, she bought 109,890 shares at a weighted average price of $0.9505 per share, and held 269,107 shares directly after the trade.
The footnote explains that the $0.9505 figure is a weighted average, with actual purchase prices ranging from $0.9051 to $0.9730 per share. Detailed price breakdowns are available upon request from regulators, the company, or its security holders.
Quantum-Si Inc director Amir Jafri received a grant of 114,055 stock options on Class A Common Stock at an exercise price of $0.00 per share. The options vest in equal monthly installments beginning on March 31, 2026, subject to continued service. Following this, he directly holds 115,942 Class A shares.