QTRX · ISSUER CIK 1503274
Quanterix Corp
Between Aug 1, 2026 and Oct 29, 2026, 5 Quanterix Corp insiders reported $286K of open-market purchases and $0.00 of sales on SEC Form 4. The largest buyer was Donnelly William P (Director), with $286K.
↗5 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. No open-market sales in the window.
$286KInsider buying
$0.00Insider selling
+$286KNet open-market
Oct 16, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 16, 202616:08 | Oct 15, 2026 | QTRX | Chief Technology Officer | M · Exercise | — | +1,558 | 39,792 | +4% | — | ||
| Oct 16, 202616:08 | Oct 15, 2026 | QTRX | Chief Technology Officer | F · Tax | $3.07 | −467 | 39,543 | -1% | $1K | ||
| Oct 2, 202616:05 | Oct 2, 2026 | QTRX | Director | M · Exercise | — | +4,224 | 15,883 | +36% | — | ||
| Oct 2, 202616:02 | Oct 1, 2026 | QTRX | Director | A · Grant | $3.41 | +4,398 | 28,454 | +18% | $15K | ||
| Oct 2, 202616:01 | Oct 1, 2026 | QTRX | Director | A · Grant | $3.41 | +6,964 | 169,365 | +4% | $24K | ||
| Sep 16, 202616:59 | Sep 15, 2026 | QTRX | Chief Technology Officer | M · Exercise | — | +1,558 | 38,701 | +4% | — | ||
| Sep 16, 202616:59 | Sep 15, 2026 | QTRX | Chief Technology Officer | F · Tax | $2.72 | −467 | 38,452 | -1% | $1K | ||
| Sep 1, 202616:07 | Aug 31, 2026 | QTRX | Chief Technology Officer | M · Exercise | — | +159 | 37,409 | +0% | — | ||
| Sep 1, 202616:07 | Aug 31, 2026 | QTRX | Chief Technology Officer | F · Tax | $2.67 | −48 | 37,361 | -0% | $128.16 | ||
| Aug 20, 202616:59 | Aug 19, 2026 | QTRX | Director | M · Exercise | — | +3,955 | 15,345 | +35% | — | ||
| Aug 19, 202606:37 | Aug 17, 2026 | QTRX | Director | M · Exercise | — | +2,802 | 162,401 | +2% | — | ||
| Aug 17, 202616:14 | Aug 15, 2026 | QTRX | Chief Technology Officer | M · Exercise | — | +1,558 | 37,499 | +4% | — | ||
| Aug 17, 202616:14 | Aug 15, 2026 | QTRX | Chief Technology Officer | F · Tax | $2.59 | −467 | 37,250 | -1% | $1K | ||
| Aug 14, 202616:01 | Aug 13, 2026from Aug 12, 2026 | QTRX | Director | P · Buy | $2.88 | +99,400 | 99,400 | New | +$286K | -36.5% | +9.2% |
| Aug 4, 202616:45 | Jul 31, 2026 | QTRX | Chief Technology Officer | M · Exercise | — | +130 | 36,198 | +0% | — | ||
| Aug 4, 202616:45 | Jul 31, 2026 | QTRX | Chief Technology Officer | F · Tax | $3.48 | −39 | 36,159 | -0% | $135.72 |