Insider holders · CIK 0001503274
Quanterix Corp · QTRX
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Ajay Agarwal10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BCIP Associates III-B10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BCIP Associates III-B, LLC10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BCIP Associates III10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BCIP Associates III, LLC10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BAIN CAPITAL VENTURE FUND 2005, L.P.10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BAIN CAPITAL VENTURE PARTNERS 2005, L.P.10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| BAIN CAPITAL VENTURE INVESTORS, LLC10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| Michael A Krupka10% Owner | — | 2,136,085 | 2,136,085 | Dec 11, 2017 · 5:27 pm EST | Form 4 |
| bioMerieux/ADR10% Owner | 2,055,632 | — | 2,055,632 | Dec 13, 2017 · 4:26 pm EST | Form 4 |
| Flagship Ventures General Partner LLC10% Owner | 2,030,495 | — | 2,030,495 | Dec 13, 2017 · 4:26 pm EST | Form 4 |
| Flagship Ventures Fund 2004 L P10% Owner | 2,030,495 | — | 2,030,495 | Dec 13, 2017 · 4:26 pm EST | Form 4 |
| Edwin M Kania Jr.10% Owner | 2,030,495 | — | 2,030,495 | Dec 13, 2017 · 4:26 pm EST | Form 4 |
| Noubar Afeyan10% Owner | 2,030,495 | — | 2,030,495 | Dec 13, 2017 · 4:26 pm EST | Form 4 |
| Keith CrandellDirector | 4,540 | 1,537,684 | 1,542,224 | Jan 4, 2019 · 4:02 pm EST | Form 4 |
| ARCH Venture Fund VIII Overage, L.P.10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| ARCH Venture Partners VIII, LLC10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| ARCH VENTURE PARTNERS VI LLC10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| ARCH VENTURE PARTNERS VI LP10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| ARCH VENTURE FUND VI LP10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| Clinton Bybee10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| Robert Nelsen10% Owner | 1,537,684 | — | 1,537,684 | Dec 13, 2017 · 4:25 pm EST | Form 4 |
| David R WaltDirector | 1,220,040 | — | 1,220,040 | Jan 4, 2019 · 4:02 pm EST | Form 4 |
| E Kevin HrusovskyChairman, President & CEO | 1,157,495 | — | 1,157,495 | Mar 1, 2019 · 4:57 pm EST | Form 4 |
| William P DonnellyDirector | 162,401 | 99,400 | 261,801 | Aug 19, 2026 · 6:37 am EDT | Form 4 |
| Martin D MadausDirector | 4,540 | 224,966 | 229,506 | Jan 4, 2019 · 4:02 pm EST | Form 4 |
| Marijn E DekkersDirector | 121,918 | — | 121,918 | Jan 4, 2019 · 4:01 pm EST | Form 4 |
| Ernest OrticerioSVP Finance and Corporate Dev | 48,802 | — | 48,802 | Jan 11, 2019 · 4:15 pm EST | Form 4 |
| David C. DuffySVP R&D and CTO | 39,812 | — | 39,812 | Oct 31, 2018 · 7:44 pm EDT | Form 4 |
| Michael Francis MillerChief Technology Officer | 38,452 | — | 38,452 | Sep 16, 2026 · 4:59 pm EDT | Form 4 |
| Vandana SriramChief Financial Officer | 31,283 | — | 31,283 | Jun 23, 2026 · 5:06 pm EDT | Form 4 |
| Jackson StreeterSVP, Corp Dev & Strategy | 28,441 | — | 28,441 | Nov 14, 2018 · 4:35 pm EST | Form 4 |
| Scott MendelDirector | 24,056 | — | 24,056 | Jul 9, 2026 · 5:20 pm EDT | Form 4 |
| Dawn MattoonSr VP, Stgc Mrktg & Assay Tech | 16,715 | — | 16,715 | Mar 1, 2019 · 5:02 pm EST | Form 4 |
| Jeffrey Thomas ElliottDirector | 15,345 | — | 15,345 | Aug 20, 2026 · 4:59 pm EDT | Form 4 |
| Goldman Myla LaiDirector | 15,041 | — | 15,041 | Jul 9, 2026 · 5:19 pm EDT | Form 4 |
| John M ConnollyDirector | 7,240 | — | 7,240 | Jan 4, 2019 · 4:02 pm EST | Form 4 |
| Mark T. RoskeySVP and GM Apps and Reagents | 7,131 | — | 7,131 | May 14, 2018 · 9:00 pm EDT | Form 4 |
| Bruce J BalVP of Ops, Service and Quality | 5,485 | — | 5,485 | May 14, 2018 · 9:00 pm EDT | Form 4 |
| Douglas G. ColeDirector | 4,540 | — | 4,540 | Jan 4, 2019 · 4:02 pm EST | Form 4 |
| Paul M MeisterDirector | 4,540 | — | 4,540 | Jan 4, 2019 · 4:02 pm EST | Form 4 |
| Joseph DriscollChief Financial Officer | 4,388 | — | 4,388 | Jan 15, 2019 · 4:02 pm EST | Form 4 |
| Benjamin MeadowsChief Commercial Officer | 3,500 | — | 3,500 | Jun 12, 2026 · 5:32 pm EDT | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.