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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 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 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 Incorporated notice of proposed sale of 187,500 Class A Common Stock linked to Restricted Stock Unit Vesting on 04/22/2026. The filing also records 8,655 shares sold on 03/20/2026 by Morgan Stanley Smith Barney LLC as shown. The securities are described as equity compensation for services rendered.
Quantum-Si Incorporated notice of proposed sale of 187,500 Class A Common Stock linked to Restricted Stock Unit Vesting on 04/22/2026. The filing also records 8,655 shares sold on 03/20/2026 by Morgan Stanley Smith Barney LLC as shown. The securities are described as equity compensation for services rendered.
Quantum-Si Incorporated disclosed a Form 144 notice related to Class A Common Stock tied to a Restricted Stock Unit vesting event. The filing lists 416,667 shares associated with the RSU vesting dated 04/22/2026 and records a prior sale of 23,777 shares on 03/20/2026. The broker listed is Morgan Stanley Smith Barney LLC.
Quantum-Si Incorporated disclosed a Form 144 notice related to Class A Common Stock tied to a Restricted Stock Unit vesting event. The filing lists 416,667 shares associated with the RSU vesting dated 04/22/2026 and records a prior sale of 23,777 shares on 03/20/2026. The broker listed is Morgan Stanley Smith Barney LLC.
Quantum-Si Incorporated has called a fully virtual 2026 annual meeting for 1:00 p.m. Eastern on May 15, 2026. Stockholders will vote on electing ten directors, ratifying PricewaterhouseCoopers LLP as auditor for 2026, and approving a non-binding advisory say-on-pay for named executive officers.
The company has a dual-class structure with 196,431,273 Class A shares and 19,937,500 Class B shares outstanding as of March 20, 2026, with Class B carrying 20 votes per share. Founder Jonathan M. Rothberg, Ph.D. beneficially owns all Class B shares and about 69.33% of total voting power, effectively controlling the outcome of all proposals.
Quantum-Si Incorporated has called a fully virtual 2026 annual meeting for 1:00 p.m. Eastern on May 15, 2026. Stockholders will vote on electing ten directors, ratifying PricewaterhouseCoopers LLP as auditor for 2026, and approving a non-binding advisory say-on-pay for named executive officers.
The company has a dual-class structure with 196,431,273 Class A shares and 19,937,500 Class B shares outstanding as of March 20, 2026, with Class B carrying 20 votes per share. Founder Jonathan M. Rothberg, Ph.D. beneficially owns all Class B shares and about 69.33% of total voting power, effectively controlling the outcome of all proposals.
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 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 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 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 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 Incorporated submitted a Form 144 notice relating to proposed sales of Class A Common Stock. The filing lists a sale of 21,927 shares on 12/22/2025 and discloses vested equity items tied to restricted stock unit vesting of 10,838 and 44,271 shares on 03/15/2024 and 03/12/2025, respectively. The broker listed is Morgan Stanley Smith Barney LLC.
Quantum-Si Incorporated submitted a Form 144 notice relating to proposed sales of Class A Common Stock. The filing lists a sale of 21,927 shares on 12/22/2025 and discloses vested equity items tied to restricted stock unit vesting of 10,838 and 44,271 shares on 03/15/2024 and 03/12/2025, respectively. The broker listed is Morgan Stanley Smith Barney LLC.