# Quanterix Corp (QTRX) insider trading, Q3 2026 Canonical: https://sec-api.dev/insider-trading/qtrx > 44 non-derivative transactions: 2 purchases ($286K), 0 sales. CIK 1503274. | Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing | | --- | --- | --- | --- | --- | --- | --- | --- | | 2026-09-15 | Miller Michael Francis | Officer | F | 111.0 | 2.72 | 37867.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | M | 834.0 | | 38701.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | M | 372.0 | | 37978.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | F | 41.0 | 2.72 | 37606.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | M | 135.0 | | 37647.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | F | 41.0 | 2.72 | 37512.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | M | 136.0 | | 37553.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | F | 249.0 | 2.72 | 38452.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | M | 81.0 | | 37442.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-09-15 | Miller Michael Francis | Officer | F | 25.0 | 2.72 | 37417.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000017/0002120516-26-000017-index.htm | | 2026-08-31 | Miller Michael Francis | Officer | F | 48.0 | 2.67 | 37361.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000016/0002120516-26-000016-index.htm | | 2026-08-31 | Miller Michael Francis | Officer | M | 159.0 | | 37409.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000016/0002120516-26-000016-index.htm | | 2026-08-19 | Elliott Jeffrey Thomas | Director | M | 3955.0 | | 15345.0 | https://www.sec.gov/Archives/edgar/data/1503274/000168975726000005/0001689757-26-000005-index.htm | | 2026-08-17 | DONNELLY WILLIAM P | Director | M | 2802.0 | | 162401.0 | https://www.sec.gov/Archives/edgar/data/1503274/000120792826000009/0001207928-26-000009-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | M | 81.0 | | 36240.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | F | 25.0 | 2.59 | 36215.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | M | 136.0 | | 36351.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | F | 41.0 | 2.59 | 36310.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | M | 135.0 | | 36445.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | F | 41.0 | 2.59 | 36404.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | M | 372.0 | | 36776.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | F | 111.0 | 2.59 | 36665.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | M | 834.0 | | 37499.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-15 | Miller Michael Francis | Officer | F | 249.0 | 2.59 | 37250.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000015/0002120516-26-000015-index.htm | | 2026-08-13 | DONNELLY WILLIAM P | Director | P | 72245.0 | 2.93 | 99400.0 | https://www.sec.gov/Archives/edgar/data/1503274/000120792826000008/0001207928-26-000008-index.htm | | 2026-08-12 | DONNELLY WILLIAM P | Director | P | 27155.0 | 2.75 | 27155.0 | https://www.sec.gov/Archives/edgar/data/1503274/000120792826000008/0001207928-26-000008-index.htm | | 2026-07-31 | Miller Michael Francis | Officer | F | 39.0 | 3.48 | 36159.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000014/0002120516-26-000014-index.htm | | 2026-07-31 | Miller Michael Francis | Officer | M | 130.0 | | 36198.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000014/0002120516-26-000014-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | M | 136.0 | | 35169.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | M | 834.0 | | 36317.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | F | 111.0 | 4.24 | 35483.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | M | 372.0 | | 35594.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | F | 41.0 | 4.24 | 35222.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | M | 81.0 | | 35058.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | F | 25.0 | 4.24 | 35033.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | F | 249.0 | 4.24 | 36068.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | F | 41.0 | 4.24 | 35128.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-15 | Miller Michael Francis | Officer | M | 135.0 | | 35263.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000013/0002120516-26-000013-index.htm | | 2026-07-08 | LAI GOLDMAN MYLA | Director | M | 8073.0 | | 15041.0 | https://www.sec.gov/Archives/edgar/data/1503274/000116858126000002/0001168581-26-000002-index.htm | | 2026-07-08 | Mendel Scott | Director | M | 8073.0 | | 24056.0 | https://www.sec.gov/Archives/edgar/data/1503274/000151505126000004/0001515051-26-000004-index.htm | | 2026-07-01 | DONNELLY WILLIAM P | Director | A | 5472.0 | 4.34 | 160305.0 | https://www.sec.gov/Archives/edgar/data/1503274/000120792826000007/0001207928-26-000007-index.htm | | 2026-07-01 | Mendel Scott | Director | A | 3456.0 | 4.34 | 16837.0 | https://www.sec.gov/Archives/edgar/data/1503274/000151505126000003/0001515051-26-000003-index.htm | | 2026-06-30 | Miller Michael Francis | Officer | M | 130.0 | | 35016.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000012/0002120516-26-000012-index.htm | | 2026-06-30 | Miller Michael Francis | Officer | F | 39.0 | 4.32 | 34977.0 | https://www.sec.gov/Archives/edgar/data/1503274/000212051626000012/0002120516-26-000012-index.htm | Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets --- Independent. 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