Form 4 for QTRX Quanterix Corp
Accepted 2026-08-04 16:45:11 ET · period of report 2026-07-31 · accession 0002120516-26-000014 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-04 16:45 | 2026-07-31 | QTRX | Miller Michael Francis | CTO | M - OptEx | — | +130 | 36.2K | +0.4% | — |
| D | 2026-08-04 16:45 | 2026-07-31 | QTRX | Miller Michael Francis | CTO | F - Tax | $3.48 | -39 | 36.2K | -0.1% | -$135.72 |
| D | 2026-08-04 16:45 | 2026-07-31 | QTRX | Miller Michael Francis | CTO | M - OptEx | $0.00 | -130 | 159 | -45% | $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 | 2026-07-31 | M | A | 130 | — | 36,198 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 2 | Common | Common Stock | 2026-07-31 | F | D | 39 | $3.48 | 36,159 | D | — | — | |
| 3 | Derivative | Restricted Stock Units | 2026-07-31 | M | D | 130 | $0.00 | 159 | D | $0.00 · — to — | 130 Common Stock | (F2) 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. (F2) 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. |