Sriram Vandana — SEC Form 4 filings
SEC reporting owner CIK 1908223. 28 Form 4 filings on record with FilingPulse; latest filed 2026-06-23.
Transaction summary — filings shown
Covers all 28 filings on record, filed 2024-02-06 to 2026-06-23. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 4,150 shares, $19,878 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, …): 68.
- Largest priced transaction: purchase of 4,150 shares @ $4.79 ($19,878) in Quanterix Corp, filed 2025-09-17.
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) | Chief Financial Officer | 28 | 1 leg · 4,150 sh · $19,878 | — | 68 |
Form 4 filings — Sriram Vandana
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-23 | 4 | Quanterix Corp (QTRX) | Option exercise (M): 263 · Tax withholding (F): 79 @ $3.10 · Option exercise (M): 514 · Tax withholding (F): 154 @ $3.10 · Option exercise (M): 1,056 · Tax withholding (F): 315 @ $3.10 · +3 more | EDGAR |
| 2026-05-18 | 4 | Quanterix Corp (QTRX) | Option exercise (M): 263 · Tax withholding (F): 79 @ $2.75 · Option exercise (M): 514 · Tax withholding (F): 154 @ $2.75 · Option exercise (M): 1,056 · Tax withholding (F): 315 @ $2.75 · +3 more | EDGAR |
| 2026-04-17 | 4 | Quanterix Corp (QTRX) | Option exercise (M): 263 · Tax withholding (F): 79 @ $3.60 · Option exercise (M): 514 · Tax withholding (F): 154 @ $3.60 · Option exercise (M): 1,056 · Tax withholding (F): 315 @ $3.60 · +3 more | EDGAR |
| 2026-03-16 | 4 | Quanterix Corp (QTRX) | Option exercise (M): 263 · Tax withholding (F): 93 @ $4.72 · Option exercise (M): 514 · Tax withholding (F): 181 @ $4.72 · Option exercise (M): 1,056 · Tax withholding (F): 371 @ $4.72 · +3 more | EDGAR |
| 2026-02-18 | 4 | Quanterix Corp (QTRX) | Option exercise (M): 514 · Tax withholding (F): 179 @ $5.74 · Option exercise (M): 263 · Tax withholding (F): 92 @ $5.74 · Grant/award (A): 74,905 (derivative) @ $0 · Grant/award (A): 74,905 (derivative) @ $0 · +2 more | EDGAR |
| 2026-02-06 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 4,395 @ $0 | EDGAR |
| 2026-01-20 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 274 @ $7.95 | EDGAR |
| 2025-12-18 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $7.41 | EDGAR |
| 2025-11-24 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $5.78 | EDGAR |
| 2025-10-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $5.78 | EDGAR |
| 2025-09-17 | 4 | Quanterix Corp (QTRX) | Purchase (P): 4,150 @ $4.79 | EDGAR |
| 2025-09-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $4.97 | EDGAR |
| 2025-08-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $4.57 | EDGAR |
| 2025-07-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $5.49 | EDGAR |
| 2025-06-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $6.06 | EDGAR |
| 2025-05-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $4.50 | EDGAR |
| 2025-04-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $5.36 | EDGAR |
| 2025-03-18 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 229 @ $7.06 | EDGAR |
| 2025-02-19 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 92 @ $8.05 | EDGAR |
| 2025-02-06 | 4 | Quanterix Corp (QTRX) | Grant/award (A): 50,712 @ $0 · Grant/award (A): 166,119 (derivative) @ $0 | EDGAR |
| 2025-02-04 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 2,166 @ $9.19 | EDGAR |
| 2025-01-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 93 @ $8.62 | EDGAR |
| 2024-12-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 75 @ $10.68 | EDGAR |
| 2024-11-18 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 78 @ $11.44 | EDGAR |
| 2024-10-16 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 78 @ $12.48 | EDGAR |
| 2024-09-17 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 78 @ $12.82 | EDGAR |
| 2024-08-22 | 4 | Quanterix Corp (QTRX) | Tax withholding (F): 927 @ $13.15 | EDGAR |
| 2024-02-06 | 4 | Quanterix Corp (QTRX) | Grant/award (A): 24,675 @ $0 · Grant/award (A): 83,038 (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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