Form 4 for QTRX Quanterix Corp
Accepted 2026-02-18 00:00:00 ET · period of report 2026-02-15 · accession 0001908223-26-000006 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-02-18 | 2026-02-15 | QTRX | Sriram Vandana | CFO | M - OptEx | — | +777 | 26.3K | +3% | — |
| DM | 2026-02-18 | 2026-02-15 | QTRX | Sriram Vandana | CFO | F - Tax | $5.74 | -271 | 26.2K | -1% | -$1,556 |
| DM | 2026-02-18 | 2026-02-15 | QTRX | Sriram Vandana | CFO | M - OptEx | $0.00 | -777 | 4,734 | -14% | $0 |
| DM | 2026-02-18 | 2026-02-15 | QTRX | Sriram Vandana | CFO | A - Grant | $0.00 | +149.8K | 74.9K | New | $0 |
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 | 2026-02-15 | M | A | 514 | — | 26,248 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. (F2) The total shown no longer includes 55,884 unvested RSUs which the reporting person previously reported in Table I of Form 4 and will hereafter report in Table II of Form 4. |
| 2 | Common | Common Stock | 2026-02-15 | F | D | 179 | $5.74 | 26,069 | D | — | — | |
| 3 | Common | Common Stock | 2026-02-15 | M | A | 263 | — | 26,332 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 4 | Common | Common Stock | 2026-02-15 | F | D | 92 | $5.74 | 26,240 | D | — | — | |
| 5 | Derivative | Restricted Stock Unit | 2026-02-15 | M | D | 514 | $0.00 | 12,339 | D | $0.00 · — to — | 514 Common Stock | (F6) On February 2, 2024, the reporting person was granted 24,675 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in equal monthly installments of 6.25% on the monthly anniversary of the grant date thereafter. |
| 6 | Derivative | Performance Stock Unit | 2026-02-15 | A | A | 74,905 | $0.00 | 74,905 | D | $0.00 · — to 2026-12-31 | 74,905 Common Stock | (F3) Each PSU award to vest (subject to the employee's continued service to the Company on the applicable vesting dates) according to the schedule and conditions set forth in the executive long-term incentive plan contained in the Company's 2026 Employee Equity Guidelines. After the award's performance conditions are satisfied, the PSUs will vest in four equal annual installments on each of the first four anniversaries of the Transaction Date. |
| 7 | Derivative | Restricted Stock Unit | 2026-02-15 | A | A | 74,905 | $0.00 | 74,905 | D | $0.00 · — to — | 74,905 Common Stock | (F4) The award vests in four equal annual installments on each of the first four anniversaries of the Transaction Date. |
| 8 | Derivative | Restricted Stock Unit | 2026-02-15 | M | D | 263 | $0.00 | 4,734 | D | $0.00 · — to — | 263 Common Stock | (F5) On August 21, 2023, the reporting person was granted 12,624 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in equal monthly installments of 6.25% on the monthly anniversary of the grant date thereafter. |