Martin D. Madaus - Jan 3, 2022 Form 4 Insider Report for Quanterix Corp (QTRX)

Role: Director
Signature: /s/ Brian Keane, Attorney-in-Fact
Stock symbol: QTRX
Transactions as of: Jan 3, 2022
Transactions value $: $18,109
Form type: 4
Date filed: 1/5/2022, 03:06 PM
Previous filing: Oct 5, 2021
Next filing: Apr 6, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	QTRX	Common Stock	Award	$0	+2.67K	+17.38%	$0.00	18K	Jan 3, 2022	Direct	F1, F2
transaction	QTRX	Common Stock	Award	$18.1K	+427	+2.37%	$42.41	18.4K	Jan 3, 2022	Direct	F2, F3, F4
holding	QTRX	Common Stock						165K	Jan 3, 2022	See Footnote	F5

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	+4K		$0.00	4K	Jan 3, 2022	Common Stock	4K	$42.41	Direct	F6

* 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, 2022 granted pursuant to the Quanterix Corporation 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 2,668 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 2021.
F4	Closing price of the Company's common stock on the Nasdaq Global Market on January 3, 2022.
F5	Held by a trust for which the Reporting Person is a trust advisor who shares voting and investment control.
F6	Represents non-qualified stock option to purchase 4,002 shares of common stock granted pursuant to the Quanterix Corporation 2018 Non-Employee Director Compensation Policy.