Welcome to our dedicated page for Quantum-Si Incorporated SEC filings (Ticker: QSI), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page compiles U.S. SEC filings for Quantum-Si Incorporated (Nasdaq: QSI), a proteomics technology and life sciences company focused on single-molecule protein analysis and Next-Generation Protein Sequencing. Here, investors can review how Quantum-Si reports its financial performance, capital structure, and material corporate events in official regulatory documents.
Quantum-Si’s periodic reports, such as its quarterly results furnished via Form 8-K, provide detail on product and service revenue, cost of revenue, research and development spending, selling, general and administrative expenses, and items like lease termination or legal settlement expenses. These filings also include condensed consolidated balance sheets and statements of operations, along with non-GAAP metrics such as adjusted total operating expenses and adjusted EBITDA, together with reconciliations to GAAP measures.
Capital markets and financing activities are documented in Forms 8-K and related registration statements. Examples include a registered direct offering of Class A common stock and pre-funded warrants, an at-the-market Sales Agreement for Class A common stock, and the termination of a prior equity distribution agreement. Filings describe intended uses of proceeds, such as funding the Proteus platform development, commercialization, manufacturing development, research and development, and general corporate purposes.
Other material agreements and corporate actions, including lease terminations, settlement and mutual release agreements, and inducement equity awards under the 2023 Inducement Equity Incentive Plan, are also reported in Quantum-Si’s SEC filings. Stock Titan’s interface adds AI-powered summaries that highlight key terms, financial impacts, and timelines from these documents, helping readers quickly understand complex agreements, capital raises, and operating decisions without reading every line of each filing.
Quantum-Si Incorporated (QSI) Form 4 – insider activity snapshot
Chief Product Officer John S. Vieceli reported one transaction dated 06/23/2025. He disposed of 21,923 Class A common shares at a weighted-average price of $1.6139 through the company’s mandatory “sell-to-cover” program that automatically sells shares to satisfy federal, state and local tax withholding triggered by the vesting of previously granted restricted stock units. The officer had no discretion over the timing or volume of the sale, which generated roughly $35,000 in gross proceeds based on the reported average price range of $1.55-$1.68.
After the sale, Vieceli maintains direct ownership of 842,586 shares, retaining more than 97 % of his pre-transaction stake. No derivative securities were acquired or disposed of, and no additional open-market activity is disclosed. Because the disposition was administrative and pre-arranged at grant, it is generally viewed as neutral from a sentiment standpoint, though investors often track any insider sales for potential signals of executive confidence.
Christian LaPointe, General Counsel and Corporate Secretary of Quantum-Si, reported a transaction involving the company's Class A Common Stock on June 23, 2025. The insider sold 11,946 shares at a weighted average price of $1.6139 per share, with individual sale prices ranging from $1.55 to $1.68.
This sale was executed through a mandatory sell-to-cover provision to satisfy tax withholding obligations related to the vesting of restricted stock units (RSUs). The transaction was automatic and non-discretionary, as LaPointe had no control over this mandatory provision established at the RSU grant date.
Following the transaction, LaPointe continues to hold 971,534 shares directly. This Form 4 filing demonstrates standard tax-related share sales common during RSU vesting events rather than discretionary trading activity by the insider.
Quantum-Si CFO Jeffry R. Keyes reported a sale of 8,624 shares of Class A Common Stock on June 23, 2025, at a weighted average price of $1.6139 per share. The transaction was executed through a mandatory sell-to-cover provision to satisfy tax withholding obligations related to the vesting of restricted stock units (RSUs).
Key details of the transaction:
- The sales prices ranged from $1.55 to $1.68 per share
- Following the transaction, Keyes retains beneficial ownership of 1,179,570 shares held directly
- The sale was automatic and non-discretionary, triggered by RSU vesting tax obligations
- The Form 4 was filed on behalf of Keyes by Christian LaPointe, Ph.D., as attorney-in-fact