January 15, 2026 · Form 4 insider transaction
Toloue Masoud sold 1,817 shares of QUANTERIX CORP at $7.95 per share, a transaction worth $14.4K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 5 days after the transaction.
Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs).; QTRX year-end reconciliation revealed a variance of 681 shares. Corrected balance as shown; Includes 206,398 RSUs.