| $385M | ||
| $350M | ||
| $215M | ||
| $82M | ||
| $76M | ||
| $62M |
Buys | $2,893,714 | 7 | 100 |
Sells | $0 | 0 | 0 |
| WALT DAVID R | director | 4 | $2.12M | 0 | $0 | $2.12M |
| DONNELLY WILLIAM P | director | 1 | $506,348 | 0 | $0 | $506,348 |
| Toloue Masoud | President & CEO | 1 | $248,723 | 0 | $0 | $248,723 |
| Sriram Vandana | Chief Financial Officer | 1 | $19,879 | 0 | $0 | $19,879 |
Quanterix Corporation, a life sciences company, engages in development and marketing of digital immunoassay platforms that advances precision health for life sciences research and diagnostics in North America, Europe, the Middle East, Africa, and the Asia Pacific regions. It offers HD-X instrument, a sensitive automated multiplex protein detection platform; and SR-X instrument that enables researchers to apply Simoa detection technology in various applications, including direct detection of nucleic acids. The company also provides SP-X instrument that is based on Simoa planar array technology for the measurement of multiplex chemiluminescent immunoassays. The company's products include assay kits and other consumables such as reagents. In addition, it offers contract research services, including sample testing, homebrew assay development, and custom development services. The company primarily operates in the areas of neurology, oncology, cardiology, infectious diseases, and inflammation. It sells its products for the life science research sector primarily to laboratories associated with academic and governmental research institutions, as well as pharmaceutical, biotechnology, and contract research companies through a direct sales force, support organizations, and distributors or sales agents. The company was formerly known as Digital Genomics, Inc. and changed its name to Quanterix Corporation in August 2007. Quanterix Corporation was incorporated in 2007 and is headquartered in Billerica, Massachusetts.
Over the last 12 months, insiders at Quanterix Corporation have bought $2.89M and sold $0 worth of Quanterix Corporation stock.
On average, over the past 5 years, insiders at Quanterix Corporation have bought $2M and sold $2.68M worth of stock each year.
Highest buying activity among insiders over the last 12 months: WALT DAVID R (director) — $2.12M. DONNELLY WILLIAM P (director) — $506,348. Toloue Masoud (President & CEO) — $248,723.
The last purchase of 4,150 shares for transaction amount of $19,879 was made by Sriram Vandana (Chief Financial Officer) on 2025‑09‑12.
| 2025-09-12 | Sriram Vandana | Chief Financial Officer | 4,150 0.0089% | $4.79 | $19,879 | +25.36% | ||
| 2025-06-13 | WALT DAVID R | director | 123,990 0.3233% | $6.14 | $760,803 | -2.89% | ||
| 2025-06-12 | WALT DAVID R | director | 36,010 0.0933% | $6.23 | $224,166 | -4.85% | ||
| 2025-06-09 | WALT DAVID R | director | 78,131 0.2124% | $5.34 | $417,220 | +16.60% | ||
| 2025-06-09 | Toloue Masoud | President & CEO | 45,900 0.1266% | $5.42 | $248,723 | +16.60% | ||
| 2025-06-06 | WALT DAVID R | director | 131,869 0.3437% | $5.43 | $716,576 | +9.87% | ||
| 2025-06-06 | DONNELLY WILLIAM P | director | 93,113 0.2428% | $5.44 | $506,348 | +9.87% | ||
| 2024-08-20 | WALT DAVID R | director | 47,000 0.1231% | $13.29 | $624,630 | -40.92% | ||
| 2024-08-13 | Toloue Masoud | President & CEO | 19,000 0.0485% | $10.90 | $207,100 | -27.92% | ||
| 2024-05-14 | Sale | OLSON LAURIE J | director | 1,500 0.004% | $16.98 | $25,470 | -29.19% | |
| 2024-04-01 | Sale | OLSON LAURIE J | director | 1,000 0.0026% | $23.50 | $23,500 | -47.35% | |
| 2024-02-14 | Sale | OLSON LAURIE J | director | 1,500 0.004% | $24.35 | $36,525 | -46.35% | |
| 2024-01-02 | Sale | OLSON LAURIE J | director | 1,000 0.0026% | $26.91 | $26,910 | -45.06% | |
| 2023-09-08 | DONNELLY WILLIAM P | director | 20,200 0.0545% | $24.85 | $501,978 | -11.27% | ||
| 2022-08-12 | Toloue Masoud | President & CEO | 105,000 0.2829% | $10.43 | $1.1M | +23.14% | ||
| 2022-08-12 | DOYLE MICHAEL A | CFO and Treasurer | 15,000 0.0394% | $10.16 | $152,418 | +23.14% | ||
| 2022-08-11 | Hlavinka Sarah E. | 4,760 0.0132% | $10.46 | $49,788 | +26.57% | |||
| 2022-08-10 | WALT DAVID R | 150,000 0.4084% | $8.62 | $1.29M | +50.00% | |||
| 2022-08-10 | Madaus Martin D | 89,667 0.2385% | $8.43 | $755,543 | +50.00% | |||
| 2022-08-10 | MEISTER PAUL M | 47,957 0.1303% | $8.61 | $412,780 | +50.00% |
| WALT DAVID R | director | 1866933 3.9968% | $10.94M | 8 | 0 | +26.53% |
| Toloue Masoud | President & CEO | 518922 1.1109% | $3.04M | 3 | 3 | <0.0001% |
| DONNELLY WILLIAM P | director | 139094 0.2978% | $815,090.84 | 2 | 0 | <0.0001% |
| Sriram Vandana | Chief Financial Officer | 87200 0.1867% | $510,992.00 | 1 | 0 | |
| CRANDELL KEITH | 1537684 3.2919% | $9.01M | 1 | 1 | <0.0001% | |
| ARCH VENTURE FUND VI LP | 10 percent owner | 1537684 3.2919% | $9.01M | 1 | 0 | <0.0001% |
| HRUSOVSKY E KEVIN | Executive Chairman | 910249 1.9487% | $5.33M | 1 | 103 | <0.0001% |
| Madaus Martin D | 254633 0.5451% | $1.49M | 1 | 52 | +50% | |
| MEISTER PAUL M | 252611 0.5408% | $1.48M | 1 | 0 | +50% | |
| Duffy David C. | SVP R&D and CTO | 54730 0.1172% | $320,717.80 | 0 | 36 | |
| DOYLE MICHAEL A | CFO and Treasurer | 48614 0.1041% | $284,878.04 | 1 | 1 | +23.14% |
| Fry John J | General Counsel & Secretary | 37671 0.0806% | $220,752.06 | 0 | 29 | |
| Mattoon Dawn | Sr. VP, Diagnostics | 36876 0.0789% | $216,093.36 | 0 | 48 | |
| Chaubal Amol | Chief Financial Officer | 30222 0.0647% | $177,100.92 | 0 | 15 | |
| Orticerio Ernest | SVP Finance and Corporate Dev | 28802 0.0617% | $168,779.72 | 0 | 5 | |
| Hlavinka Sarah E. | 26270 0.0562% | $153,942.20 | 1 | 0 | +26.57% | |
| Roskey Mark T. | SVP, Strategic Partnerships | 22325 0.0478% | $130,824.50 | 0 | 45 | |
| OLSON LAURIE J | director | 13738 0.0294% | $80,504.68 | 0 | 4 | |
| Connolly John M | director | 4970 0.0106% | $29,124.20 | 1 | 0 | +26.86% |
| DRISCOLL JOSEPH | Chief Financial Officer | 4388 0.0094% | $25,713.68 | 0 | 6 | |
| DEKKERS MARIJN E | director | 2270 0.0049% | $13,302.20 | 1 | 5 | <0.0001% |
| Increased Positions | 63 | +42.86% | 5M | +14.64% |
| Decreased Positions | 59 | -40.14% | 6M | -15.67% |
| New Positions | 20 | New | 1M | New |
| Sold Out Positions | 14 | Sold Out | 148,815 | Sold Out |
| Total Postitions | 151 | +2.72% | 37M | -1.03% |
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| Blackrock, Inc. | $20,016.00 | 6.62% | 3.11M | -311,229 | -9.09% | 2025-09-30 |
| Vanguard Group Inc | $17,024.00 | 5.63% | 2.65M | -1M | -28.89% | 2025-09-30 |
| Invenomic Capital Management Lp | $8,957.00 | 2.96% | 1.39M | +248,101 | +21.67% | 2025-09-30 |
| William Blair Investment Management, Llc | $8,457.00 | 2.8% | 1.32M | +187,299 | +16.61% | 2025-09-30 |
| Easterly Investment Partners Llc | $8,052.00 | 2.66% | 1.25M | +168,549 | +15.55% | 2025-09-30 |
| Millennium Management Llc | $7,775.00 | 2.57% | 1.21M | +1M | +1,066.14% | 2025-09-30 |
| Geode Capital Management, Llc | $6,506.00 | 2.15% | 1.01M | -120,855 | -10.67% | 2025-09-30 |
| Kent Lake Pr Llc | $6,436.00 | 2.13% | 1M | -1M | -56.5% | 2025-09-30 |