List of insiders holdings for Quanterix Corp:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | ARCH VENTURE FUND VI LP ARCH Venture Fund VIII Overage L.P. ARCH VENTURE PARTNERS VI LP ARCH VENTURE PARTNERS VI LLC ARCH Venture Partners VIII LLC BYBEE CLINTON NELSEN ROBERT 10% Owner | 2021-02-02 16:12:23 | 3,156,106 0 | 3,156,106 | Form 13G |
| 2 | Cunningham Everett President and CEO | 2026-01-21 16:15:00 | 2,697,500 0 | 2,697,500 | Form 4 |
| 3 | WALT DAVID R Director | 2026-01-06 20:11:53 | 1,872,890 0 | 1,872,890 | Form 4 |
| 4 | HRUSOVSKY E KEVIN Executive Chairman | 2022-07-06 16:07:44 | 910,249 0 | 910,249 | Form 4 |
| 5 | Toloue Masoud President & CEO | 2026-01-20 16:37:02 | 507,310 0 | 507,310 | Form 4 |
| 6 | MEISTER PAUL M Director | 2026-01-15 13:56:49 | 313,253 0 | 313,253 | Form 4 |
| 7 | Madaus Martin D Director | 2025-01-06 17:55:49 | 52,729 254,633 | 307,362 | Form 4 |
| 8 | DRISCOLL JOSEPH Chief Financial Officer | 2019-01-15 16:02:59 | 203,773 0 | 203,773 | Form 4 |
| 9 | DONNELLY WILLIAM P Executive Chair | 2026-01-06 19:16:13 | 150,751 0 | 150,751 | Form 4 |
| 10 | Char Daniel Chief Legal Officer | 2026-03-24 16:06:50 | 147,133 0 | 147,133 | Form 3 |
| 11 | CRANDELL KEITH Director | 2023-04-04 18:23:24 | 131,236 0 | 131,236 | Form 4 |
| 12 | DOYLE MICHAEL A CFO and Treasurer | 2023-10-02 17:42:47 | 88,332 0 | 88,332 | Form 4 |
| 13 | Sriram Vandana Chief Financial Officer | 2026-03-16 16:10:22 | 80,702 0 | 80,702 | Form 4 |
| 14 | Sachs Alan Bruce Director | 2026-01-06 17:49:20 | 70,099 0 | 70,099 | Form 4 |
| 15 | Hampton Malcolm Garret Director | 2026-01-06 17:49:47 | 70,099 0 | 70,099 | Form 4 |
| 16 | Hlavinka Sarah E. Director | 2025-07-03 14:37:32 | 60,070 0 | 60,070 | Form 4 |
| 17 | Flynn Karen Director | 2026-01-06 17:45:19 | 57,212 0 | 57,212 | Form 4 |
| 18 | Geist William Chief Operating Officer | 2021-02-10 16:10:21 | 56,398 0 | 56,398 | Form 4 |
| 19 | Mendel Scott Director | 2026-01-06 17:45:43 | 56,053 0 | 56,053 | Form 4 |
| 20 | LAI GOLDMAN MYLA Director | 2026-01-06 17:46:17 | 54,804 0 | 54,804 | Form 4 |
| 21 | Duffy David C. SVP R&D and CTO | 2022-03-28 17:02:33 | 54,730 0 | 54,730 | Form 4 |
| 22 | Orticerio Ernest SVP Finance and Corporate Dev | 2019-01-11 16:15:22 | 51,585 0 | 51,585 | Form 4 |
| 23 | Streeter Jackson SVP, Corp Dev & Strategy | 2019-03-19 16:10:23 | 46,404 0 | 46,404 | Form 4 |
| 24 | Magovcevic-Liebisch Ivana Director | 2026-01-15 12:29:53 | 43,607 0 | 43,607 | Form 4 |
| 25 | Elliott Jeffrey Thomas Director | 2026-01-14 11:01:03 | 42,792 0 | 42,792 | Form 4 |
| 26 | Fry John J General Counsel & Secretary | 2022-08-03 16:01:41 | 37,671 0 | 37,671 | Form 4 |
| 27 | Mattoon Dawn Sr. VP, Diagnostics | 2022-04-05 16:02:37 | 36,876 0 | 36,876 | Form 4 |
| 28 | Miller Michael Francis Chief Operating Officer | 2026-04-02 19:26:04 | 32,110 0 | 32,110 | Form 4 |
| 29 | Chaubal Amol Chief Financial Officer | 2021-05-05 21:15:07 | 30,222 0 | 30,222 | Form 4 |
| 30 | Desjourdy Amee Chief Human Resource Officer | 2019-08-21 16:02:03 | 29,188 0 | 29,188 | Form 4 |
| 31 | Blaser Brian J Director | 2024-01-04 16:09:19 | 25,461 0 | 25,461 | Form 4 |
| 32 | BAL BRUCE J VP of Ops, Service and Quality | 2018-05-14 21:00:57 | 24,185 0 | 24,185 | Form 4 |
| 33 | Roskey Mark T. SVP, Strategic Partnerships | 2022-04-05 16:03:04 | 22,325 0 | 22,325 | Form 4 |
| 34 | Connolly John M Director | 2020-01-06 16:04:06 | 17,410 0 | 17,410 | Form 4 |
| 35 | OLSON LAURIE J Director | 2024-05-14 16:02:12 | 13,738 0 | 13,738 | Form 4 |
| 36 | Cole Douglas G. Director | 2019-01-04 16:02:08 | 12,440 0 | 12,440 | Form 4 |
| 37 | Stetson Shawn Interim CFO and Treasurer | 2021-05-13 17:32:40 | 8,033 0 | 8,033 | Form 4 |
| 38 | DEKKERS MARIJN E Director | 2021-06-08 16:19:37 | 7,002 0 | 7,002 | Form 4 |
| 39 | Flagship Ventures Fund 2004 L P Flagship Ventures General Partner LLC AFEYAN NOUBAR KANIA EDWIN M JR 10% Owner | 2020-02-13 16:17:06 | 0 0 | 0 | Form 13G |
| 40 | bioMerieux 10% Owner | 2019-11-18 15:55:57 | 0 0 | 0 | Form 13G |
| 41 | BAIN CAPITAL VENTURE INVESTORS LLC BAIN CAPITAL VENTURE PARTNERS 2005 L.P. BAIN CAPITAL VENTURE FUND 2005 L.P. BCIP Associates III LLC BCIP Associates III BCIP Associates III-B LLC BCIP Associates III-B KRUPKA MICHAEL A Agarwal Ajay 10% Owner | 2021-02-16 15:11:31 | 0 0 | 0 | Form 13G |