ARCH VENTURE FUND VI LP [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Ownership	Reported
11/24/2020	Quanterix Corp	QTRX	Other (disposition)	Common Stock	277.5k	$0.00	$0	See Footnote	11/20/2020
11/24/2020	Quanterix Corp	QTRX	Other (disposition)	Common Stock	176.9k	$0.00	$0	See Footnote	11/20/2020
11/24/2020	Quanterix Corp	QTRX	Other (acquisition)	Common Stock	1k	$0.00	$0		11/20/2020
11/24/2020	Quanterix Corp	QTRX	Other (acquisition)	Common Stock	1k	$0.00	$0		11/20/2020
11/20/2020	Quanterix Corp	QTRX	Other (disposition)	Common Stock	229k	$0.00	$0	See Footnote	11/20/2020
11/20/2020	Quanterix Corp	QTRX	Other (disposition)	Common Stock	146k	$0.00	$0	See Footnote	11/20/2020
11/20/2020	Quanterix Corp	QTRX	Other (acquisition)	Common Stock	854	$0.00	$0		11/20/2020
11/20/2020	Quanterix Corp	QTRX	Other (acquisition)	Common Stock	853	$0.00	$0		11/20/2020
12/11/2017	Quanterix Corp	QTRX	Conversion	Common Stock	398.3k	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Common Stock	381.5k	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Common Stock	1.3M	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Purchase	Common Stock	266k	$15.00	$4M		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Series A-1 Preferred Stock	1.3M	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Series A-2 Preferred Stock	3.4M	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Series B Preferred Stock	1.5M	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Series C Preferred Stock	352.8k	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Series D Preferred Stock	1.2M	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Common Stock	1M	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Common Stock	477k	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Common Stock	109.8k	$0.00	$0		12/11/2017
12/11/2017	Quanterix Corp	QTRX	Conversion	Series D Preferred Stock	4.1M	$0.00	$0		12/11/2017