Quantum-Si (QSI) GC granted 261K RSUs and options on 312K shares

Rhea-AI Filing Summary

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.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

LaPointe Christian

(Last) (First) (Middle)

C/O QUANTUM-SI INCORPORATED

29 BUSINESS PARK DRIVE

(Street)

BRANFORD CT 06405

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Quantum-Si Inc [ QSI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	GC & Corp. Secretary

3. Date of Earliest Transaction (Month/Day/Year)
03/12/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	03/12/2026		A		261,121(1)	A	$0	1,209,976	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$0.976	03/12/2026		A		312,339		(2)	03/12/2036	Class A Common Stock	312,339	$0	312,339	D

Explanation of Responses:

1. The grant consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs shall vest in 16 equal quarterly installments beginning on June 20, 2026 until fully vested, subject to continued service through the applicable vesting date.

2. The shares underlying this option shall vest in equal quarterly installments beginning on June 20, 2026 until fully vested, subject to continued service through the applicable vesting dates.

	/s/ Christian LaPointe, Ph.D.	03/16/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transactions did Quantum-Si (QSI) report for Christian LaPointe?

Quantum-Si reported that General Counsel Christian LaPointe received equity awards, not open-market trades. He was granted restricted stock units and stock options as part of compensation, increasing his direct holdings in Class A common stock.

How many RSUs did Quantum-Si (QSI) grant to Christian LaPointe?

Quantum-Si granted 261,121 restricted stock units to Christian LaPointe. Each RSU represents one share of Class A common stock upon vesting, providing additional equity-based compensation tied to his continued service with the company.

What stock options did Quantum-Si (QSI) award to Christian LaPointe?

Quantum-Si awarded LaPointe a stock option covering 312,339 shares of Class A common stock. The option has an exercise price of $0.976 per share and vests in equal quarterly installments starting on June 20, 2026.

When do Christian LaPointe’s Quantum-Si (QSI) RSUs and options start vesting?

Both the RSUs and the stock option granted to Christian LaPointe begin vesting on June 20, 2026. Vesting occurs in equal quarterly installments, contingent on his continued service through each applicable vesting date.

How many Quantum-Si (QSI) shares does Christian LaPointe hold after these grants?

After the reported equity grants, Christian LaPointe directly holds 1,209,976 shares of Quantum-Si Class A common stock. This figure reflects his position following the non-derivative award of 261,121 shares reported in the filing.

Are the Quantum-Si (QSI) insider transactions open-market purchases or sales?

The reported transactions are compensation-related grants, not open-market purchases or sales. They include restricted stock units and a stock option award, classified as acquisitions under grant or award rather than discretionary trading in the market.