QTRX Quanterix Corp: institutional ownership and insider trading
140 funds reported holding $159M of Quanterix Corp in their latest 13F filings; in Q2 2026 funds net sold $35.7M, with 36 new positions and 31 funds selling out; over the last 12 months insiders bought $296K and sold $0 on the open market; over its last four quarters it reported revenue of $153M and net income of −$123M.
QTRX revenue and earnings
- Quarter ended Jun 30, 2026: revenue $32.9M, net income −$48.9M, EPS -1.04
- Quarter ended Mar 31, 2026: revenue $36.4M, net income −$17.5M, EPS -0.37
- Quarter ended Dec 31, 2025: revenue $43.9M, net income −$23.2M, EPS -0.48
- Quarter ended Sep 30, 2025: revenue $40.2M, net income −$33.5M, EPS -0.73
Famous investors holding QTRX
- Ken Griffin (Citadel Advisors): $992K, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $176K, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $76.3K, 0.0% of the portfolio
Largest institutional holders of QTRX
- VANGUARD GROUP INC — $17.0M
- BlackRock, Inc. (BLK) — $15.7M
- Blue Water Life Science Advisors, LP — $15.0M
- First Eagle Investment Management, LLC — $11.9M
- Portolan Capital Management, LLC — $8.21M
- VANGUARD CAPITAL MANAGEMENT LLC — $7.78M
- Lionhunter Capital Management, LLC — $6.48M
- AQR CAPITAL MANAGEMENT LLC — $5.80M
- Nuveen Asset Management, LLC — $5.73M
- Kent Lake PR LLC — $5.44M
Recent QTRX insider trades
- Aug 13, 2026: Donnelly William P bought 99,400 shares ($286K)
- May 12, 2026: Meadows Benjamin bought 3,500 shares ($9.70K)
- Sep 12, 2025: Sriram Vandana bought 4,150 shares ($19.9K)
- Jun 13, 2025: Walt David R bought 160,000 shares ($986K)
5%+ owners
- Ameriprise Financial, Inc.: 7.5% (Schedule 13G/A, filed May 15, 2026)
- First Eagle Investment Management, LLC: 5.8% (Schedule 13G, filed Aug 6, 2026)
Who owns the most QTRX stock?
The largest institutional holders of Quanterix Corp in the latest 13F filings are VANGUARD GROUP INC ($17.0M), BlackRock, Inc. (BLK) ($15.7M), Blue Water Life Science Advisors, LP ($15.0M).
Are insiders buying or selling QTRX?
Over the last 12 months insiders bought $296K and sold $0 of Quanterix Corp stock on the open market (SEC Form 4).
Which famous investors own QTRX?
Ken Griffin, Izzy Englander, D. E. Shaw.
What was QTRX's revenue last quarter?
Quanterix Corp reported revenue of $32.9M for the quarter ended June 30, 2026, with net income of −$48.9M.