Form 4 for QTRX Quanterix Corp
Accepted 2026-05-18 17:34:46 ET · period of report 2026-05-15 · accession 0001908223-26-000009 · 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 | 2026-05-18 17:34 | 2026-05-15 | QTRX | Sriram Vandana | CFO | M - OptEx | — | +1,833 | 30.3K | +6% | — |
| DM | 2026-05-18 17:34 | 2026-05-15 | QTRX | Sriram Vandana | CFO | F - Tax | $2.75 | -548 | 30.0K | -2% | -$1,507 |
| DM | 2026-05-18 17:34 | 2026-05-15 | QTRX | Sriram Vandana | CFO | M - OptEx | $0.00 | -1,833 | 34.9K | -5% | $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 | 2026-05-15 | M | A | 263 | — | 28,976 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 2 | Common | Common Stock | 2026-05-15 | F | D | 79 | $2.75 | 28,897 | D | — | — | |
| 3 | Common | Common Stock | 2026-05-15 | M | A | 514 | — | 29,411 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 4 | Common | Common Stock | 2026-05-15 | F | D | 154 | $2.75 | 29,257 | D | — | — | |
| 5 | Common | Common Stock | 2026-05-15 | M | A | 1,056 | — | 30,313 | D | — | — | (F1) Restricted stock units convert into common stock on a one-for-one basis. |
| 6 | Common | Common Stock | 2026-05-15 | F | D | 315 | $2.75 | 29,998 | D | — | — | |
| 7 | Derivative | Restricted Stock Unit | 2026-05-15 | M | D | 263 | $0.00 | 3,945 | D | $0.00 · — to — | 263 Common Stock | (F2) 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 36 equal monthly installments on the 15th day of each month thereafter. (F2) 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 36 equal monthly installments on the 15th day of each month thereafter. |
| 8 | Derivative | Restricted Stock Unit | 2026-05-15 | M | D | 514 | $0.00 | 10,797 | D | $0.00 · — to — | 514 Common Stock | (F3) 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 36 equal monthly installments on the 15th day of each month thereafter. (F3) 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 36 equal monthly installments on the 15th day of each month thereafter. |
| 9 | Derivative | Restricted Stock Unit | 2026-05-15 | M | D | 1,056 | $0.00 | 34,866 | D | $0.00 · — to — | 1,056 Common Stock | (F4) On February 4, 2025, the reporting person was granted 50,712 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter. (F4) On February 4, 2025, the reporting person was granted 50,712 restricted stock units, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the 15th day of each month thereafter. |