144: Filer Information

144: Issuer Information

144: Securities Information



Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold


* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.



Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

144: Remarks and Signature


Exhibit 24.1
 
POWER OF ATTORNEY
 
Know all by these present, that the undersigned hereby constitutes and appoints each of Jeffry Keyes, Chief Financial Officer, Christian LaPointe, Ph.D., General Counsel, and Linda Spero, Director of SEC Reporting, of Quantum-Si Incorporated (the “Company”), and Michael Fantozzi, Anne Bruno, Samantha Silver, Maura Foley and Robyn Frattali of Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C., signing singly, with full power of substitution, the undersigned's true and lawful attorney-in-fact to:
 

(1)
execute for and on behalf of the undersigned, in the undersigned's capacity as a shareholder of the Company, Forms 144 and Seller’s Representation Letters pursuant to Rule 144 of the Securities Act of 1933, as amended, and the rules thereunder;
 

(2)
do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any transaction which requires compliance with Rule 144 of the Securities Act of 1933, as amended, and timely file any Form 144 with the United States Securities and Exchange Commission and any stock exchange or similar authority; and
 

(3)
take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interests of, or legally required by the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.
 
The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Rule 144 of the Securities Act of 1933, as amended.
 
This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to comply with Rule 144 of the Securities Act of 1933, as amended, with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.
 
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed 6/18/2024.
 
   
/s/ Grace Johnston
 
   
Grace Johnston