Principal Securities’s Quanterix QTRX Stock Holding History

Principal Securities’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
2025 Q3	–	Sell	-60	Closed	-$399	–	3824
2025 Q2	$399	Buy	+60	New	+$334	﹤0.01%	3514

Other funds holding QTRX

PCM

Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

ICM

Invenomic Capital Management Boston, Massachusetts $2.18B AUM 0.03% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

EIP

Easterly Investment Partners Beverly, Massachusetts $1.97B AUM 25.87% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

KLP

Kent Lake PR Anasco, Puerto Rico $198M AUM 5.21% 1-Year Est. Return

Principal Securities's QTRX Position: Q3 2025 in Review

Principal Securities sold out of Quanterix (QTRX) in Q3 2025, closing a stake of 60 shares — an estimated $399 sold.

Principal Securities first reported a position in QTRX in Q2 2025 and held it in 1 quarter. The position peaked at $399 in Q2 2025. 129 funds tracked by Wall St. Rank hold QTRX as of Q3 2025.

Principal Securities reported no remaining Quanterix position as of Q3 2025 after selling out during the quarter.
Principal Securities sold 60 Quanterix shares in Q3 2025, an estimated $399.
Principal Securities first reported a position in Quanterix in Q2 2025 and held it in 1 quarter.
Principal Securities's Quanterix position peaked at $399 in Q2 2025.
129 funds tracked by Wall St. Rank held Quanterix as of Q3 2025.

Based on Principal Securities's 13F filing for Q3 2025, filed 12 Nov 2025.