William Blair Investment Management
QTRX icon

William Blair Investment Management’s Quanterix QTRX Stock Holding History

William Blair Investment Management’s Portfolio QTRX Stock Details QTRX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$7.33M Buy
2,083,699
+37,250
+2% +$217K 0.02% 323
2025
Q4 		$13M Buy
2,046,449
+731,169
+56% +$4.54M 0.04% 300
2025
Q3 		$7.14M Buy
1,315,280
+187,299
+17% +$996K 0.02% 329
2025
Q2 		$7.5M Buy
1,127,981
+21,918
+2% +$122K 0.02% 334
2025
Q1 		$7.2M Buy
1,106,063
+43,958
+4% +$367K 0.02% 333
2024
Q4 		$11.3M Buy
+1,062,105
New +$12.9M 0.03% 339

Other funds holding QTRX

Ameriprise
Ameriprise Minneapolis, Minnesota $431B AUM 30.22% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
PCM
Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return
BWLSA
Blue Water Life Science Advisors Larkspur, California $125M AUM 91.82% 1-Year Est. Return
ICM
Invenomic Capital Management Boston, Massachusetts $2.17B AUM 0.03% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
LCS
Levin Capital Strategies New York $1.31B AUM 28.11% 1-Year Est. Return
First Eagle Investment Management
First Eagle Investment Management New York $59B AUM 32.99% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
TC
Trium Capital London, United Kingdom $138M AUM 84.73% 1-Year Est. Return