InsiderTrades

Form 4 for QTRX Quanterix Corp

Accepted 2026-01-05 00:00:00 ET · period of report 2025-12-31 · accession 0001867276-26-000001 · 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
2026-01-05 2025-12-31 QTRX Toloue Masoud Pres, CEO, Dir F - Tax $6.36 -258 508.4K -0.1% -$1,641

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-12-31 F D 258 $6.36 508,446 D — — (F1) Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 761 restricted stock units (RSUs). (F2) Includes 211,362 RSUs.