Masoud Toloue - 02 Feb 2024 Form 4 Insider Report for Quanterix Corp (QTRX)

Role: President & CEO, Director
Signature: /s/ Brian Keane, as Attorney-in-Fact
Issuer symbol: QTRX
Transactions as of: 02 Feb 2024
Net transactions value: -$193,971
Form type: 4
Filing time: 06 Feb 2024, 16:07:06 UTC
Previous filing: 01 Feb 2024
Next filing: 04 Mar 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	QTRX	Common Stock	Award	$0	+67,532	+24%	$0.000000	353,799	02 Feb 2024	Direct	F1
transaction	QTRX	Common Stock	Tax liability	$193,971	-8,397	-2.4%	$23.10	345,402	02 Feb 2024	Direct	F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	QTRX	Stock Option (right to buy)	Award	$0	+227,262		$0.000000	227,262	02 Feb 2024	Common Stock	227,262	$23.10	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of stock issuable on vesting of restricted stock units. The restricted stock units vest as to 25% of the shares on February 2, 2025, and the remaining 75% vest in 36 equal monthly installments on the 15th of each month beginning on March 15, 2025.
F2	Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 27,794 RSUs.
F3	Includes 176,370 restricted stock units.
F4	The option vests as to 25% of the shares on February 2, 2025, and the remaining 75% vests in 36 equal monthly installments on the 15th of each month beginning on March 15, 2025.