Form 4 for QTRX Quanterix Corp
Accepted 2026-04-02 19:26:04 ET · period of report 2026-03-31 · accession 0002120516-26-000005 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-04-02 19:26 | 2026-03-31 | QTRX | Miller Michael Francis | COO | M - OptEx | — | +229 | 31.5K | +0.7% | — |
| DM | 2026-04-02 19:26 | 2026-03-31 | QTRX | Miller Michael Francis | COO | F - Tax | $3.52 | -69 | 31.4K | -0.2% | -$242.88 |
| DM | 2026-04-02 19:26 | 2026-03-31 | QTRX | Miller Michael Francis | COO | M - OptEx | $0.00 | -229 | 679 | -25% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-31 | M | A | 99 | — | 31,370 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 2 | Common | Common Stock | 2026-03-31 | F | D | 30 | $3.52 | 31,340 | D | — | — | |
| 3 | Common | Common Stock | 2026-03-31 | M | A | 130 | — | 31,470 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 4 | Common | Common Stock | 2026-03-31 | F | D | 39 | $3.52 | 31,431 | D | — | — | |
| 5 | Derivative | Restricted Stock Unit | 2026-03-31 | M | D | 99 | $0.00 | 0 | D | $0.00 · — to — | 99 Common Stock | (F2) On April 7, 2022, the reporting person was granted 4,518 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter. (F2) On April 7, 2022, the reporting person was granted 4,518 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter. |
| 6 | Derivative | Restricted Stock Unit | 2026-03-31 | M | D | 130 | $0.00 | 679 | D | $0.00 · — to — | 130 Common Stock | (F3) On September 23, 2022, the reporting person was granted 6,278 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter. (F3) On September 23, 2022, the reporting person was granted 6,278 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the last day of each month thereafter. |