QUANTERIX CORP

Ticker: QTRX CUSIP: 74766Q101 Class: Common Stock

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

Note: Option positions (PUT/CALL) are excluded.

Q3 2019

Shares 100,269 Value ($000) $2,202 Avg Close $27.89 Range $21.17 - $35.69

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	100,269	$2,202	$27.89	$21.17 - $35.69