Faessler Jason F. 4

What Happened

• Jason F. Faessler, Chief Financial Officer of Quanterix Corp (QTRX), was granted 141,820 restricted stock units (RSUs) on July 15, 2026. The Form 4 reports the award as a derivative acquisition (code A) at $0.00 consideration — no cash was paid.
• This is a compensation grant (not an open-market purchase or sale). The RSUs represent the right to receive shares if and when they vest.

Key Details

• Transaction date: July 15, 2026; Report filed: July 16, 2026 (filed within the typical 2-business-day Form 4 window).
• Transaction type: Award/Grant of derivative securities (RSUs); price reported $0.00.
• Grant size: 141,820 RSUs. Total dollar value at grant is not reported on the Form 4; actual value will depend on QTRX share price at vesting.
• Shares owned following the transaction: not specified in the filing.
• Footnote: RSUs vest in four equal annual installments on the first four anniversaries of the grant date, subject to continued employment.

Context

• RSUs are a common form of executive compensation and do not transfer actual shares until they vest. This award is routine compensation rather than a market purchase or sale and should be interpreted as part of pay, not necessarily a direct signal of near-term insider buying or selling.