Quanterix (QTRX) COO Miller details PSUs, RSUs, options and shares in Form 3
Filing Impact
Filing Sentiment
Form Type
3
Rhea-AI Filing Summary
Quanterix Corp Chief Operating Officer Michael Francis Miller filed an initial ownership report showing his equity-based holdings in the company. As of February 23, 2026, he holds 74,905 Performance Stock Units granted on February 15, 2026, which vest in four equal annual installments after meeting performance conditions under the 2026 Employee Equity Guidelines.
He also holds multiple Restricted Stock Unit awards, including 74,905 RSUs granted on February 15, 2026 that vest 25% per year for four years, plus earlier RSU grants from 2022–2025 with monthly vesting schedules after the first anniversary. In addition, he has several option grants to buy Common Stock at exercise prices between $8.4300 and $54.0400 per share, with expirations between July 28, 2031 and February 4, 2035, and directly owns 30,262 shares of Common Stock.
Positive
- None.
Negative
- None.
Insider Trade Summary
18 transactions reported
Mixed
18 txns
Insider
Miller Michael Francis
Role
Chief Operating Officer
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| holding | Performance Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Restricted Stock Unit | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Stock Options (Right to buy) | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Performance Stock Unit — 74,905 shares (Direct);
Restricted Stock Unit — 99 shares (Direct);
Stock Options (Right to buy) — 11,820 shares (Direct);
Common Stock — 30,262 shares (Direct)
Footnotes (1)
- On February 15, 2026, the reporting person was granted 74,905 Performance Stock Units, with 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 grant date On July 28, 2021, the reporting person was granted 11,820 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On April 7, 2022, the reporting person was granted 10,543 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On February 2, 2024, the reporting person was granted 21,852 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On May 21, 2024, the reporting person was granted 60,123 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On February 6, 2023, the reporting person was granted 9,168 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On March 15, 2023, the reporting person was granted 15,320 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On September 23, 2022, the reporting person was granted 14,649 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On February 4, 2025, the reporting person was granted 131,147 stock options, vesting 25% on the first anniversary of the grant date, with the remaining 75% vesting in 36 equal monthly installments on the final day of each month thereafter. On April 7, 2022, the reporting person was granted 4,518 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 final day of each month thereafter. On September 23, 2022, the reporting person was granted 6,278 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 final day of each month thereafter. On February 6, 2023, the reporting person was granted 3,929 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. On February 4, 2025, the reporting person was granted 40,036 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. On May 21, 2024, the reporting person was granted 17,878 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. On February 2, 2024, the reporting person was granted 6,494 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. On March 15, 2023, the reporting person was granted 6,566 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. On February 15, 2026, the reporting person was granted 74,905 restricted stock units, vesting 25% per year for four years.
FAQ
What does the Form 3 filing by Quanterix (QTRX) COO Michael Francis Miller show?
The Form 3 shows Michael Francis Miller’s existing equity interests in Quanterix, including Performance Stock Units, multiple Restricted Stock Unit grants, several stock option awards, and directly owned Common Stock. It is an initial ownership report, not a record of new share purchases or sales.
How many Performance Stock Units does the Quanterix (QTRX) COO hold?
Michael Francis Miller holds 74,905 Performance Stock Units granted on February 15, 2026. These PSUs vest in four equal annual installments after specified performance conditions are satisfied, and are governed by the company’s 2026 Employee Equity Guidelines and long-term incentive plan.
What Restricted Stock Units are disclosed for the Quanterix (QTRX) COO?
The filing lists several RSU awards, including 74,905 Restricted Stock Units granted on February 15, 2026 that vest 25% per year for four years. Earlier RSU grants from 2022–2025 vest 25% after one year, with the remaining 75% vesting in 36 monthly installments.
What stock options does Quanterix (QTRX) COO Michael Francis Miller hold?
He holds several stock option grants to buy Common Stock, with exercise prices ranging from $8.4300 to $54.0400 per share. These options were granted between July 28, 2021 and February 4, 2025 and expire between 2031 and 2035, following standard multi-year vesting schedules.