Karen Flynn - Jan 3, 2023 Form 4 Insider Report for Quanterix Corp (QTRX)

Role: Director
Signature: /s/ Brian Keane, as Attorney-in-Fact
Stock symbol: QTRX
Transactions as of: Jan 3, 2023
Transactions value $: $11,805
Form type: 4
Date filed: 1/4/2023, 03:03 PM
Previous filing: Oct 31, 2022
Next filing: Oct 31, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	QTRX	Common Stock	Award	$0	+8.08K	+55.91%	$0.00	22.5K	Jan 3, 2023	Direct	F1, F2
transaction	QTRX	Common Stock	Award	$11.8K	+918	+4.07%	$12.86	23.5K	Jan 3, 2023	Direct	F2, F3, F4

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	+12.1K		$0.00	12.1K	Jan 3, 2023	Common Stock	12.1K	$12.86	Direct	F5

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

Explanation of Responses:

Id	Content
F1	Represents restricted stock units that vest as to 100% of the shares on December 31, 2023 granted pursuant to the Quanterix Corporation Amended and Restated 2018 Non-Employee Director Compensation Policy. Each restricted stock unit represents the right to receive one share of the Issuer's common stock.
F2	Includes 21,310 restricted stock units.
F3	Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the fourth quarter of 2022.
F4	Closing price of the Company's common stock on the Nasdaq Global Market on January 3, 2023.
F5	Represents non-qualified stock option to purchase 12,124 shares of common stock granted pursuant to the Quanterix Corporation Amended and Restated 2018 Non-Employee Director Compensation Policy.