Toloue Masoud — SEC Form 4 filings
SEC reporting owner CIK 1867276. 51 Form 4 filings on record with FilingPulse; latest filed 2026-01-20.
Transaction summary — filings shown
Covers the 50 most recent of 51 filings on record, filed 2024-02-06 to 2026-01-20. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 2 filings — 64,900 shares, $455,823 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 52.
- Largest priced transaction: purchase of 45,900 shares @ $5.42 ($248,723) in Quanterix Corp, filed 2025-06-10.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Quanterix Corp (QTRX) | President & CEO, Director | 50 | 2 legs · 64,900 sh · $455,823 | — | 52 |
Form 4 filings — Toloue Masoud
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-01-20 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,817 @ $7.95 | EDGAR |
| 2026-01-05 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 258 @ $6.36 | EDGAR |
| 2025-12-18 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $7.41 | EDGAR |
| 2025-12-03 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $7.26 | EDGAR |
| 2025-11-24 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $5.74 | EDGAR |
| 2025-11-05 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $5.34 | EDGAR |
| 2025-10-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $5.78 | EDGAR |
| 2025-10-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $5.43 | EDGAR |
| 2025-09-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $4.97 | EDGAR |
| 2025-09-03 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $4.55 | EDGAR |
| 2025-08-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $4.57 | EDGAR |
| 2025-08-04 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $5.94 | EDGAR |
| 2025-07-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $5.49 | EDGAR |
| 2025-07-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $6.65 | EDGAR |
| 2025-06-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $6.06 | EDGAR |
| 2025-06-10 | 4 | Quanterix Corp (QTRX) | Purchase (P): 45,900 @ $5.42 | EDGAR |
| 2025-06-03 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $5.20 | EDGAR |
| 2025-05-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $4.50 | EDGAR |
| 2025-05-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $5.76 | EDGAR |
| 2025-04-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $5.16 | EDGAR |
| 2025-04-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 254 @ $6.51 | EDGAR |
| 2025-03-18 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,242 @ $7.06 | EDGAR |
| 2025-03-04 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 247 @ $7.59 | EDGAR |
| 2025-02-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 752 @ $8.05 | EDGAR |
| 2025-02-06 | 4 | Quanterix Corp (QTRX) | Grant/award (A): 138,790 @ $0 · Grant/award (A): 454,641 (derivative) @ $0 | EDGAR |
| 2025-02-04 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 298 @ $9.19 · Tax withholding (F): 6,077 @ $9.19 | EDGAR |
| 2025-01-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 906 @ $8.62 | EDGAR |
| 2025-01-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 415 @ $10.63 | EDGAR |
| 2024-12-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 752 @ $10.68 | EDGAR |
| 2024-12-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 368 @ $12.33 | EDGAR |
| 2024-11-18 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $11.44 | EDGAR |
| 2024-10-31 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 368 @ $13.22 | EDGAR |
| 2024-10-16 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $12.48 | EDGAR |
| 2024-10-01 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 368 @ $12.50 | EDGAR |
| 2024-09-16 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $12.82 | EDGAR |
| 2024-09-04 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 368 @ $13.03 | EDGAR |
| 2024-08-16 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $11.35 | EDGAR |
| 2024-08-15 | 4 | Quanterix Corp (QTRX) | Purchase (P): 19,000 @ $10.90 | EDGAR |
| 2024-08-01 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 368 @ $14.76 | EDGAR |
| 2024-07-16 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $15.08 | EDGAR |
| 2024-07-01 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 368 @ $13.21 | EDGAR |
| 2024-06-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $13.32 | EDGAR |
| 2024-06-03 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,054 @ $15.97 | EDGAR |
| 2024-05-16 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $17.88 | EDGAR |
| 2024-05-01 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,049 @ $16.12 | EDGAR |
| 2024-04-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $17.15 | EDGAR |
| 2024-04-02 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $23.56 | EDGAR |
| 2024-03-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 1,120 @ $26.55 | EDGAR |
| 2024-03-04 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 724 @ $23.96 | EDGAR |
| 2024-02-06 | 4 | Quanterix Corp (QTRX) | Grant/award (A): 67,532 @ $0 · Tax withholding (F): 8,397 @ $23.10 · Grant/award (A): 227,262 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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