Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Quanterix Corp
Report date January 16, 2026 · Filed January 20, 2026
Section 16 reporting ended · disclosed 2026-01-20. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 507,310 |
Reported balance
After 2026-01-15 transaction · row 1
Account or security details depend on footnotes; rows are not merged.
1 source rowRow 1 · 2026-01-15 · Tax withholding · Disposed 1,817 · Balance 507,310 F1: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs). F2: QTRX year-end reconciliation revealed a variance of 681 shares. Corrected balance as shown F3: Includes 206,398 RSUs. |
Filing footnotes · ownership attribution and instrument terms
F1: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs).
F2: QTRX year-end reconciliation revealed a variance of 681 shares. Corrected balance as shown
F3: Includes 206,398 RSUs.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| January 15, 2026 Filed Jan 20, 2026 21:37 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,817 | $7.95 | $14,445.15 |
DisclosureSEC source: 0001867276-26-000003 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 507,310 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs). F2 · balance_after: QTRX year-end reconciliation revealed a variance of 681 shares. Corrected balance as shown F3 · balance_after: Includes 206,398 RSUs. Read SEC document |
| December 31, 2025 Filed Jan 5, 2026 21:51 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 258 | $6.36 | $1,640.88 |
DisclosureSEC source: 0001867276-26-000001 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 508,446 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 761 restricted stock units (RSUs). F2 · balance_after: Includes 211,362 RSUs. Read SEC document |
| December 15, 2025 Filed Dec 18, 2025 20:27 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $7.41 | $9,203.22 |
DisclosureSEC source: 0001867276-25-000009 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 508,704 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs). F2 · balance_after: Includes 212,123 RSUs Read SEC document |
| November 30, 2025 Filed Dec 3, 2025 16:53 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $7.26 | $1,844.04 |
DisclosureSEC source: 0001867276-25-000008 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 509,946 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 761 restricted stock units (RSUs). F2 · balance_after: Includes 215,845 RSUs Read SEC document |
| November 15, 2025 Filed Nov 24, 2025 19:51 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $5.74 | $7,129.08 |
DisclosureSEC source: 0001867276-25-000007 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 510,200 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 2,480 restricted stock units (RSUs). F2 · balance_after: Includes 216,606 RSUs. Read SEC document |
| October 31, 2025 Filed Nov 5, 2025 18:12 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $5.34 | $1,356.36 |
DisclosureSEC source: 0001867276-25-000006 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 511,442 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 761 restricted stock units (RSUs). F2 · balance_after: Includes 219,086 RSUs Read SEC document |
| October 15, 2025 Filed Oct 18, 2025 01:43 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $5.78 | $7,178.76 |
DisclosureSEC source: 0001867276-25-000005 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 511,696 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 3,722 restricted stock units (RSUs). F2 · balance_after: Includes 219,847 RSUs Read SEC document |
| September 30, 2025 Filed Oct 2, 2025 23:31 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $5.43 | $1,379.22 |
DisclosureSEC source: 0001867276-25-000004 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 512,938 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon vesting of 761 restricted stock units (RSUs). F2 · balance_after: Includes 223,569 RSUs. Read SEC document |
| September 15, 2025 Filed Sep 18, 2025 00:10 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $4.97 | $6,172.74 |
DisclosureSEC source: 0001867276-25-000003 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 513,192 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 224,330 restricted stock units. Read SEC document |
| August 31, 2025 Filed Sep 3, 2025 14:31 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $4.55 | $1,155.70 |
DisclosureSEC source: 0001562180-25-006066 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 514,434 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 228,052 restricted stock units. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 20:36 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $4.57 | $5,675.94 |
DisclosureSEC source: 0001562180-25-005890 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 514,688 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 228,813 restricted stock units. Read SEC document |
| July 31, 2025 Filed Aug 4, 2025 20:03 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $5.94 | $1,508.76 |
DisclosureSEC source: 0001562180-25-005615 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 515,930 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 232,535 restricted stock units. Read SEC document |
| July 15, 2025 Filed Jul 17, 2025 20:37 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $5.49 | $6,818.58 |
DisclosureSEC source: 0001562180-25-005454 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 516,184 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 233,296 restricted stock units. Read SEC document |
| June 30, 2025 Filed Jul 2, 2025 20:27 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $6.65 | $1,689.10 |
DisclosureSEC source: 0001562180-25-005234 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 517,426 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 237,018 restricted stock units. Read SEC document |
| June 15, 2025 Filed Jun 17, 2025 21:18 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $6.06 | $7,526.52 |
DisclosureSEC source: 0001562180-25-004913 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 517,680 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 241,779 restricted stock units. Read SEC document |
| June 09, 2025 Filed Jun 10, 2025 20:08 UTC | Quanterix Corp QTRX · Entity 6649 | PurchaseCommon Stock | 45,900 | $5.42 | $248,722.92 |
DisclosureSEC source: 0001562180-25-004679 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 518,922 F1 · price: This transaction was executed in multiple trades at prices ranging from $5.38 to $5.42. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 · balance_after: Includes 245,501 restricted stock units. Read SEC document |
| May 31, 2025 Filed Jun 3, 2025 20:19 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $5.20 | $1,320.80 |
DisclosureSEC source: 0001562180-25-004344 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 473,022 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 245,501 restricted stock units. Read SEC document |
| May 15, 2025 Filed May 19, 2025 13:14 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $4.50 | $5,589.00 |
DisclosureSEC source: 0001562180-25-003966 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 473,276 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 242,262 restricted stock units. Read SEC document |
| April 30, 2025 Filed May 2, 2025 20:05 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $5.76 | $1,463.04 |
DisclosureSEC source: 0001562180-25-003476 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 474,518 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 245,984 restricted stock units. Read SEC document |
| April 15, 2025 Filed Apr 17, 2025 20:01 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $5.16 | $6,408.72 |
DisclosureSEC source: 0001562180-25-003182 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 474,772 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 246,745 restricted stock units. Read SEC document |
| March 31, 2025 Filed Apr 2, 2025 20:52 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 254 | $6.51 | $1,653.54 |
DisclosureSEC source: 0001562180-25-002912 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 476,014 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 250,467 restricted stock units. Read SEC document |
| March 15, 2025 Filed Mar 18, 2025 22:25 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,242 | $7.06 | $8,768.52 |
DisclosureSEC source: 0001562180-25-002555 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 476,268 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 3,722 RSUs. F2 · balance_after: Includes 251,228 restricted stock units. Read SEC document |
| February 28, 2025 Filed Mar 4, 2025 21:03 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 247 | $7.59 | $1,874.73 |
DisclosureSEC source: 0001562180-25-001948 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 477,510 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 254,950 restricted stock units. Read SEC document |
| February 15, 2025 Filed Feb 19, 2025 21:13 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 752 | $8.05 | $6,053.60 |
DisclosureSEC source: 0001562180-25-001307 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 477,757 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 255,711 restricted stock units. Read SEC document |
| February 04, 2025 Filed Feb 6, 2025 22:00 UTC | Quanterix Corp QTRX · Entity 6649 | GrantStock Option (right to buy) · Derivative | 454,641 | $0.00 Strike: $8.43 | $0.00 |
DisclosureSEC source: 0001562180-25-000995 · primarydocument.xml · derivative · entry 2 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 454,641 Underlying: Common Stock · 454,641 shares Expires 2035-02-04 F3 · derivative.exercise_date: The option vests as to 25% of the shares on February 4, 2026, and the remaining 75% vests in 36 equal monthly installments on the 15th of each month beginning on March 15, 2026. Read SEC document |
| February 04, 2025 Filed Feb 6, 2025 22:00 UTC | Quanterix Corp QTRX · Entity 6649 | GrantCommon Stock | 138,790 | $0.00 | $0.00 |
DisclosureSEC source: 0001562180-25-000995 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 478,509 F1 · shares: Represents shares of stock issuable on vesting of restricted stock units. The restricted stock units vest as to 25% of the shares on February 4, 2026, and the remaining 75% vest in 36 equal monthly installments on the 15th of each month beginning on March 15, 2026. F2 · balance_after: Includes 258,027 restricted stock units. Read SEC document |
| February 02, 2025 Filed Feb 5, 2025 02:33 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 6,077 | $9.19 | $55,847.63 |
DisclosureSEC source: 0001562180-25-000928 · primarydocument.xml · nonDerivative · entry 2 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 339,719 F3 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 16,883 RSUs. F4 · balance_after: Includes 119,237 restricted stock units. Read SEC document |
| January 31, 2025 Filed Feb 5, 2025 02:33 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 298 | $9.19 | $2,738.62 |
DisclosureSEC source: 0001562180-25-000928 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 345,796 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 136,120 restricted stock units. Read SEC document |
| January 15, 2025 Filed Jan 17, 2025 21:05 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 906 | $8.62 | $7,809.72 |
DisclosureSEC source: 0001562180-25-000397 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 346,094 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 136,881 restricted stock units. Read SEC document |
| December 31, 2024 Filed Jan 2, 2025 23:15 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 415 | $10.63 | $4,411.45 |
DisclosureSEC source: 0001562180-25-000025 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 347,000 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 139,197 restricted stock units. Read SEC document |
| December 15, 2024 Filed Dec 17, 2024 23:13 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 752 | $10.68 | $8,031.36 |
DisclosureSEC source: 0001562180-24-008463 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 347,415 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 139,958 restricted stock units. Read SEC document |
| November 30, 2024 Filed Dec 2, 2024 21:20 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 368 | $12.33 | $4,537.44 |
DisclosureSEC source: 0001562180-24-008051 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 348,167 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 142,274 restricted stock units. Read SEC document |
| November 15, 2024 Filed Nov 18, 2024 23:10 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $11.44 | $12,812.80 |
DisclosureSEC source: 0001562180-24-007749 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 348,535 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 143,035 restricted stock units. Read SEC document |
| October 31, 2024 Filed Oct 31, 2024 22:56 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 368 | $13.22 | $4,864.96 |
DisclosureSEC source: 0001562180-24-007482 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 349,655 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 145,351 restricted stock units. Read SEC document |
| October 15, 2024 Filed Oct 16, 2024 22:56 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $12.48 | $13,977.60 |
DisclosureSEC source: 0001562180-24-007364 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 350,023 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 146,112 restricted stock units. Read SEC document |
| September 30, 2024 Filed Oct 1, 2024 21:03 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 368 | $12.50 | $4,600.00 |
DisclosureSEC source: 0001562180-24-007049 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 351,143 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 148,428 restricted stock units. Read SEC document |
| September 15, 2024 Filed Sep 16, 2024 20:00 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $12.82 | $14,358.40 |
DisclosureSEC source: 0001562180-24-006814 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 351,511 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 149,189 restricted stock units. Read SEC document |
| August 31, 2024 Filed Sep 4, 2024 13:47 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 368 | $13.03 | $4,795.04 |
DisclosureSEC source: 0001562180-24-006623 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 352,631 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 151,505 restricted stock units. Read SEC document |
| August 15, 2024 Filed Aug 16, 2024 20:16 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $11.35 | $12,712.00 |
DisclosureSEC source: 0001562180-24-006312 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 352,999 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 152,266 restricted stock units. Read SEC document |
| August 13, 2024 Filed Aug 15, 2024 20:03 UTC | Quanterix Corp QTRX · Entity 6649 | PurchaseCommon Stock | 19,000 | $10.90 | $207,100.00 |
DisclosureSEC source: 0001562180-24-006279 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 354,119 F1 · price: This transaction was executed in multiple trades at prices ranging from $10.88 to $10.90 The price reported reflects the weighted average purchase price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. F2 · balance_after: Includes 154,582 restricted stock units. Read SEC document |
| July 31, 2024 Filed Aug 1, 2024 20:17 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 368 | $14.76 | $5,431.68 |
DisclosureSEC source: 0001562180-24-005921 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 335,119 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 154,582 restricted stock units. Read SEC document |
| July 15, 2024 Filed Jul 16, 2024 21:01 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $15.08 | $16,889.60 |
DisclosureSEC source: 0001562180-24-005760 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 335,487 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 155,343 restricted stock units. Read SEC document |
| June 30, 2024 Filed Jul 1, 2024 20:09 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 368 | $13.21 | $4,861.28 |
DisclosureSEC source: 0001562180-24-005395 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 336,607 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs. F2 · balance_after: Includes 157,659 restricted stock units. Read SEC document |
| June 15, 2024 Filed Jun 17, 2024 20:05 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $13.32 | $14,918.40 |
DisclosureSEC source: 0001562180-24-005121 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 336,975 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 158,420 restricted stock units. Read SEC document |
| May 31, 2024 Filed Jun 3, 2024 20:03 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,054 | $15.97 | $16,832.38 |
DisclosureSEC source: 0001562180-24-004553 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 338,095 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,179 RSUs. F2 · balance_after: Includes 160,736 restricted stock units. Read SEC document |
| May 15, 2024 Filed May 16, 2024 20:02 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $17.88 | $20,025.60 |
DisclosureSEC source: 0001562180-24-004085 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 339,149 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 162,915 restricted stock units. Read SEC document |
| April 30, 2024 Filed May 1, 2024 20:03 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,049 | $16.12 | $16,909.88 |
DisclosureSEC source: 0001562180-24-003670 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 340,269 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,169 RSUs. F2 · balance_after: Includes 165,231 restricted stock units. Read SEC document |
| April 15, 2024 Filed Apr 17, 2024 20:01 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $17.15 | $19,208.00 |
DisclosureSEC source: 0001562180-24-003438 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 341,318 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 167,400 restricted stock units. Read SEC document |
| March 31, 2024 Filed Apr 2, 2024 20:00 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $23.56 | $26,387.20 |
DisclosureSEC source: 0001562180-24-003147 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 342,438 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,169 RSUs. F2 · balance_after: Includes 169,716 restricted stock units. Read SEC document |
| March 15, 2024 Filed Mar 19, 2024 20:23 UTC | Quanterix Corp QTRX · Entity 6649 | Tax withholdingCommon Stock | 1,120 | $26.55 | $29,736.00 |
DisclosureSEC source: 0001562180-24-002813 · primarydocument.xml · nonDerivative · entry 1 Toloue Masoud · CIK 0001867276 · Director · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 343,558 F1 · shares: Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 2,316 RSUs. F2 · balance_after: Includes 171,885 restricted stock units. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.