SCHEDULE 13G/A: ARK Investment Management and Catherine Wood Reduce Stake in Quantum-Si Inc. Below 5%

ARK Investment Management LLC and its CEO, Catherine D. Wood, have reduced their beneficial ownership in Quantum-Si Inc. to 4.77% of the common stock, as disclosed in an Amendment No. 8 to their Schedule 13G filing.

Summary

• ARK Investment Management LLC and Catherine D. Wood jointly filed an Amendment No. 8 to Schedule 13G regarding their beneficial ownership of Quantum-Si Inc. Common Stock.
• As of May 31, 2025, the reporting persons collectively beneficially own 7,809,337 shares of Quantum-Si Inc. Common Stock.
• This ownership represents 4.77% of the total class of securities, which is below the 5% threshold typically requiring initial Schedule 13D or 13G filings for significant beneficial ownership.
• ARK Investment Management LLC holds sole voting and sole dispositive power over all 7,809,337 shares.
• Catherine D. Wood holds shared voting and shared dispositive power over the same 7,809,337 shares, reflecting her role as Chief Executive Officer and Chief Investment Officer of ARK.
• The filing certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of the issuer.

Sentiment

Score: 4

Explanation: The sentiment is slightly negative due to the reduction in beneficial ownership by a significant institutional investor, which often signals a less bullish outlook or a strategic reallocation of capital.

Positives

• ARK Investment Management and Catherine D. Wood, prominent investors, continue to hold a significant, albeit reduced, stake in Quantum-Si Inc., indicating continued, though diminished, interest in the company.

Negatives

• The reduction of beneficial ownership to 4.77% signifies that ARK Investment Management and Catherine D. Wood have decreased their stake in Quantum-Si Inc. below the 5% threshold, which can be interpreted as a less bullish outlook or a reallocation of capital.

Future Outlook

The document does not provide any forward-looking statements or guidance from Quantum-Si Inc. or the reporting persons regarding the issuer's future performance.

Management Comments

• "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §§ 240.14a-11."

Industry Context

This filing reflects a change in a significant institutional investor's position in a company, which can influence market perception within the broader investment community, particularly for companies in the life sciences or technology sectors where ARK is an active investor.

Stakeholder Impact

• Shareholders of Quantum-Si Inc. may react to the news of a prominent institutional investor reducing its stake, potentially leading to negative price action or a re-evaluation of the company's investment thesis.

Key Dates

Recommendation

Keywords

Quantum-Si Inc, ARK Investment Management, Catherine D. Wood, Schedule 13G, Beneficial Ownership, Common Stock, SEC Filing, Investment Stake, Institutional Investor