Form 4 for QTRX Quanterix Corp
Accepted 2026-01-20 00:00:00 ET · period of report 2026-01-16 · accession 0001867276-26-000003 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-20 | 2026-01-15 | QTRX | Toloue Masoud | Pres, CEO, Dir | F - Tax | $7.95 | -1,817 | 507.3K | -0.4% | -$14.4K |
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 | 2026-01-15 | F | D | 1,817 | $7.95 | 507,310 | D | — | — | (F1) Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs). (F3) Includes 206,398 RSUs. (F2) QTRX year-end reconciliation revealed a variance of 681 shares. Corrected balance as shown |