Sriram Vandana 4

What Happened

• Sriram Vandana, Chief Financial Officer of Quanterix Corp (QTRX), received large equity awards and converted a small number of derivative units into common stock. The filing shows two grants of 74,905 derivative awards (each reported as acquired at $0.00) for a total of 149,810 awarded units.
• Vandana also had conversions/exercises of derivative units totaling 777 shares (514 + 263). To cover tax withholding on those conversions, 271 shares (179 + 92) were surrendered/disposed at $5.74 per share, generating cash of $1,027 and $528 respectively (total ≈ $1,555). The awards themselves were reported as derivatives/PSU/RSU grants with no immediate cash value.

Key Details

• Transaction date(s): February 15, 2026; Form 4 filed February 18, 2026 (filed shortly after the transactions; may be one business day past the usual two-business-day Form 4 deadline).
• Prices and proceeds: tax-withholding dispositions were 179 shares at $5.74 ($1,027) and 92 shares at $5.74 ($528), total ≈ $1,555. Awarded units reported at $0.00 (derivative awards).
• Shares reported acquired: two awards of 74,905 shares each (total 149,810 derivative units). Conversions/exercises: 514 and 263 units converted. Shares disposed for tax withholding: 271 shares.
• Shares owned after transaction: not specified in the provided transaction summary.
• Notable footnotes: F1 (RSUs convert 1:1 into common stock); F2 (55,884 unvested RSUs previously reported will now be shown in Table II); F3–F4 (PSU/award vesting details — performance conditions and 4-year annual vesting schedule); F5–F6 (prior RSU grants and their vesting cadence).
• Transaction codes: A = award/grant, M = exercise/conversion of derivative, F = payment of exercise price/tax liability (shares withheld).

Context

• These entries reflect equity awards (RSUs/PSUs) and routine tax-withholding on conversions, not an open-market buy or sale for investment purposes. The awards have vesting/performance conditions (per footnotes) and therefore represent potential future shares rather than immediate purchases. The small number of shares surrendered were used to satisfy tax liabilities (common practice, not a market sentiment signal).