QUANTERIX CORP
QTRX·74766Q101·US·Common Stock·Healthcare - Medical Devices-Activist
QTRX (QUANTERIX CORP) is held by 76 institutional investors as of Q1 2026. Largest holders: AMERIPRISE FINANCIAL INC ($12.5M), BlackRock, Inc. ($11.5M), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC ($7.3M). Net institutional sentiment: Mixed.
76
Holders
Avg rating(7 Elite)
$73.1M
Total Value
52% (84)
Fund Consensus
40 buying - 37 selling
Who's Trading
ActivistPOPortolan Capital Management, LLC6.3%May 15, 2026
InsiderMBMeadows BenjaminBuy $10KMay 12, 2026
InsiderMFMiller Michael FrancisExercise 130 shApr 30, 2026
InsiderMFMiller Michael FrancisTax 39 shApr 30, 2026
InsiderSVSriram VandanaBuy $20KSep 12, 2025
13F: Insider & Congress:
Fund | Action | Shares | Value | Weight | Est. P&L | Conviction |
|---|---|---|---|---|---|---|
Decreased | 3.5M(-29.1%) | $12.5M | 0.0% | -73.82% | 0 | |
Decreased | 3.3M(-2.9%) | $11.5M | 0.0% | -73.12% | 0 | |
Increased | 2.1M(+1.8%) | $7.3M | 0.0% | -67.88% | 28 | |
Increased | 1.3M(+144.6%) | $4.6M | 0.0% | -54.61% | 43 | |
Decreased | 994,764(-7.4%) | $3.5M | 0.0% | -89.67% | 0 | |
Increased | 898,277(+0.6%) | $3.2M | 0.0% | -88.15% | 26 | |
Increased | 689,167(+71.2%) | $2.4M | 0.0% | -50.84% | 39 | |
Increased | 682,711(+170.7%) | $2.4M | 0.0% | -58.23% | 42 | |
Increased | 641,981(+150.6%) | $2.3M | 0.0% | -64.46% | 42 | |
Increased | 622,380(+301.1%) | $2.2M | 0.0% | -53.94% | 42 | |
Decreased | 613,439(-4.0%) | $2.2M | 0.0% | -75.97% | 0 | |
Decreased | 607,856(-26.1%) | $2.1M | 0.0% | -67.60% | 0 | |
Increased | 443,118(+13.8%) | $1.6M | 0.0% | -83.36% | 29 | |
Increased | 376,982(+21.0%) | $1.3M | 0.0% | -71.51% | 30 | |
Increased | 349,658(+1.2%) | $1.2M | 0.0% | -89.69% | 26 | |
Decreased | 345,913(-4.6%) | $1.2M | 0.0% | -89.41% | 0 | |
Increased | 316,001(+86.2%) | $1.1M | 0.0% | -55.04% | 39 | |
Increased | 270,187(+8.8%) | $951,059 | 0.0% | -70.80% | 27 | |
Increased | 232,101(+129.8%) | $817,000 | 0.0% | -61.54% | 40 | |
Increased | 183,356(+14.7%) | $645,413 | 0.0% | -66.61% | 19 |
Showing 1-20 of 84
1 / 5
Continue exploring
Other Healthcare stocks held by institutions
LLYELI LILLY & CO
408 holders · $591.1B
UNHUNITEDHEALTH GROUP INC408 holders · $161.5B
JNJJOHNSON & JOHNSON389 holders · $331.8B
DHRDANAHER CORP DEL387 holders · $85.5B
ISRGINTUITIVE SURGICAL INC386 holders · $107.9B
TMOTHERMO FISHER SCIENTIFIC INC386 holders · $130.2B
BSXBOSTON SCIENTIFIC CORP384 holders · $68B
MRKMERCK & CO INC380 holders · $178.5B
ABBVABBVIE INC376 holders · $215.3B
ABTABBOTT LABORATORIES375 holders · $110.8B
Data sourced from four SEC data sources: 13F, Form 4, 13D/13G, and STOCK Act. Not financial advice. Full disclaimer