QTRXQuanterix Corp
Insider trading & SEC Form 4 activity — last 90 days. Latest filing: 2026-10-16.
Insider buys (90d)
$286.4K
Insider sells (90d)
$0.00
Net flow
$286.4K
Filings
11
Buy transactions
2
Sell transactions
0
Distinct insiders
5
Last close (cached)
$2.79
as of 2026-10-21
1d return
+2.6%
5d return
-8.8%
1m return
-12.5%
Top insiders trading QTRX (90d)
Recent transactions (41)
| Filed | Txn date | Insider | Code | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Tax | 249 | $3.07 | $764.43 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Exer. | 834 | $0.00 | $0.00 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Tax | 111 | $3.07 | $340.77 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Exer. | 372 | $0.00 | $0.00 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Tax | 41 | $3.07 | $125.87 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Exer. | 135 | $0.00 | $0.00 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Tax | 41 | $3.07 | $125.87 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Exer. | 136 | $0.00 | $0.00 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Tax | 25 | $3.07 | $76.75 | open → |
| 2026-10-16 | 2026-10-15 | Miller Michael Francis | Exer. | 81 | $0.00 | $0.00 | open → |
| 2026-10-02 | 2026-10-02 | Magovcevic-Liebisch Ivana | Exer. | 4,224 | $0.00 | $0.00 | open → |
| 2026-10-02 | 2026-10-01 | Mendel Scott | Grant | 4,398 | $3.41 | $15.0K | open → |
| 2026-10-02 | 2026-10-01 | DONNELLY WILLIAM P | Grant | 6,964 | $3.41 | $23.7K | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Tax | 249 | $2.72 | $677.28 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Exer. | 834 | $0.00 | $0.00 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Tax | 111 | $2.72 | $301.92 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Exer. | 372 | $0.00 | $0.00 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Tax | 41 | $2.72 | $111.52 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Exer. | 135 | $0.00 | $0.00 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Tax | 41 | $2.72 | $111.52 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Exer. | 136 | $0.00 | $0.00 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Tax | 25 | $2.72 | $68.00 | open → |
| 2026-09-16 | 2026-09-15 | Miller Michael Francis | Exer. | 81 | $0.00 | $0.00 | open → |
| 2026-09-01 | 2026-08-31 | Miller Michael Francis | Tax | 48 | $2.67 | $128.16 | open → |
| 2026-09-01 | 2026-08-31 | Miller Michael Francis | Exer. | 159 | $0.00 | $0.00 | open → |
| 2026-08-20 | 2026-08-19 | Elliott Jeffrey Thomas | Exer. | 3,955 | $0.00 | $0.00 | open → |
| 2026-08-19 | 2026-08-17 | DONNELLY WILLIAM P | Exer. | 2,802 | $0.00 | $0.00 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Tax | 249 | $2.59 | $644.91 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Exer. | 834 | $0.00 | $0.00 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Tax | 111 | $2.59 | $287.49 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Exer. | 372 | $0.00 | $0.00 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Tax | 41 | $2.59 | $106.19 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Exer. | 135 | $0.00 | $0.00 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Tax | 41 | $2.59 | $106.19 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Exer. | 136 | $0.00 | $0.00 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Tax | 25 | $2.59 | $64.75 | open → |
| 2026-08-17 | 2026-08-15 | Miller Michael Francis | Exer. | 81 | $0.00 | $0.00 | open → |
| 2026-08-14 | 2026-08-13 | DONNELLY WILLIAM P | Buy | 72,245 | $2.93 | $211.7K | open → |
| 2026-08-14 | 2026-08-12 | DONNELLY WILLIAM P | Buy | 27,155 | $2.75 | $74.7K | open → |
| 2026-08-04 | 2026-07-31 | Miller Michael Francis | Tax | 39 | $3.48 | $135.72 | open → |
| 2026-08-04 | 2026-07-31 | Miller Michael Francis | Exer. | 130 | $0.00 | $0.00 | open → |
Other tickers these insiders trade
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