QTRX: Miller Michael Francis reports an option exercise and tax withholding on shares
By AlphaYouPublished Form 4
Miller Michael Francis
Reporting filer
Miller Michael Francis reports an option exercise and tax withholding on shares, not an open-market purchase or sale, in Quanterix Corp. Form 4 filed Oct 16, 2026 lists 15 entries.
- Disclosed
- Oct 16, 2026
Reported details
15 entries| Security | Owner | Date | Code | Action | Quantity | Price | Following holdings | Reporting delay | Filed terms and references |
|---|---|---|---|---|---|---|---|---|---|
| Common Stock | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 81.00 | Not stated (see footnotes) | 38,533 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | F | Tax/exercise withholding | 25.00 | 3.07 | 38,508 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 136.00 | Not stated (see footnotes) | 38,644 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | F | Tax/exercise withholding | 41.00 | 3.07 | 38,603 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 135.00 | Not stated (see footnotes) | 38,738 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | F | Tax/exercise withholding | 41.00 | 3.07 | 38,697 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 372.00 | Not stated (see footnotes) | 39,069 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | F | Tax/exercise withholding | 111.00 | 3.07 | 38,958 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 834.00 | Not stated (see footnotes) | 39,792 | 1 day | Filed terms
|
| Common Stock | Miller Michael Francis | 2026-10-15 | F | Tax/exercise withholding | 249.00 | 3.07 | 39,543 | 1 day | Filed terms
|
| Restricted Stock Unit (derivative) | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 81.00 | 0.00 | 355 | 1 day | Filed terms
|
| Restricted Stock Unit (derivative) | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 136.00 | 0.00 | 709 | 1 day | Filed terms
|
| Restricted Stock Unit (derivative) | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 135.00 | 0.00 | 2,171 | 1 day | Filed terms
|
| Restricted Stock Unit (derivative) | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 372.00 | 0.00 | 7,085 | 1 day | Filed terms
|
| Restricted Stock Unit (derivative) | Miller Michael Francis | 2026-10-15 | M | Exercise or conversion | 834.00 | 0.00 | 23,355 | 1 day | Filed terms
|
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 81.00
- Price
- Not stated (see footnotes)
- Following holdings
- 38,533
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 81.00
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 38533.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- F
- Action
- Tax/exercise withholding
- Quantity
- 25.00
- Price
- 3.07
- Following holdings
- 38,508
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: F
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 25.00
- transaction Price Per Share: 3.07
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 38508.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 136.00
- Price
- Not stated (see footnotes)
- Following holdings
- 38,644
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 136.00
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 38644.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- F
- Action
- Tax/exercise withholding
- Quantity
- 41.00
- Price
- 3.07
- Following holdings
- 38,603
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: F
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 41.00
- transaction Price Per Share: 3.07
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 38603.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 135.00
- Price
- Not stated (see footnotes)
- Following holdings
- 38,738
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 135.00
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 38738.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- F
- Action
- Tax/exercise withholding
- Quantity
- 41.00
- Price
- 3.07
- Following holdings
- 38,697
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: F
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 41.00
- transaction Price Per Share: 3.07
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 38697.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 372.00
- Price
- Not stated (see footnotes)
- Following holdings
- 39,069
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 372.00
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 39069.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- F
- Action
- Tax/exercise withholding
- Quantity
- 111.00
- Price
- 3.07
- Following holdings
- 38,958
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: F
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 111.00
- transaction Price Per Share: 3.07
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 38958.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 834.00
- Price
- Not stated (see footnotes)
- Following holdings
- 39,792
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 834.00
- id: F1
- transaction Acquired Disposed Code: A
- shares Owned Following Transaction: 39792.00
- direct Or Indirect Ownership: D
Common Stock
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- F
- Action
- Tax/exercise withholding
- Quantity
- 249.00
- Price
- 3.07
- Following holdings
- 39,543
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Common Stock
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: F
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 249.00
- transaction Price Per Share: 3.07
- transaction Acquired Disposed Code: D
- shares Owned Following Transaction: 39543.00
- direct Or Indirect Ownership: D
Restricted Stock Unit (derivative)
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 81.00
- Price
- 0.00
- Following holdings
- 355
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Restricted Stock Unit
- conversion Or Exercise Price: 0.00
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 81.00
- transaction Price Per Share: 0.00
- transaction Acquired Disposed Code: D
- id: F2
- id: F2
- underlying Security Title: Common Stock
- underlying Security Shares: 81.00
- shares Owned Following Transaction: 355.00
- direct Or Indirect Ownership: D
Restricted Stock Unit (derivative)
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 136.00
- Price
- 0.00
- Following holdings
- 709
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Restricted Stock Unit
- conversion Or Exercise Price: 0.00
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 136.00
- transaction Price Per Share: 0.00
- transaction Acquired Disposed Code: D
- id: F3
- id: F3
- underlying Security Title: Common Stock
- underlying Security Shares: 136.00
- shares Owned Following Transaction: 709.00
- direct Or Indirect Ownership: D
Restricted Stock Unit (derivative)
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 135.00
- Price
- 0.00
- Following holdings
- 2,171
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Restricted Stock Unit
- conversion Or Exercise Price: 0.00
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 135.00
- transaction Price Per Share: 0.00
- transaction Acquired Disposed Code: D
- id: F4
- id: F4
- underlying Security Title: Common Stock
- underlying Security Shares: 135.00
- shares Owned Following Transaction: 2171.00
- direct Or Indirect Ownership: D
Restricted Stock Unit (derivative)
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 372.00
- Price
- 0.00
- Following holdings
- 7,085
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Restricted Stock Unit
- conversion Or Exercise Price: 0.00
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 372.00
- transaction Price Per Share: 0.00
- transaction Acquired Disposed Code: D
- id: F5
- id: F5
- underlying Security Title: Common Stock
- underlying Security Shares: 372.00
- shares Owned Following Transaction: 7085.00
- direct Or Indirect Ownership: D
Restricted Stock Unit (derivative)
- Owner
- Miller Michael Francis
- Date
- 2026-10-15
- Code
- M
- Action
- Exercise or conversion
- Quantity
- 834.00
- Price
- 0.00
- Following holdings
- 23,355
- Reporting delay
- 1 day
- Filed terms and references
Filed terms
- security Title: Restricted Stock Unit
- conversion Or Exercise Price: 0.00
- transaction Date: 2026-10-15
- deemed Execution Date:
- transaction Form Type: 4
- transaction Code: M
- equity Swap Involved: false
- transaction Timeliness:
- transaction Shares: 834.00
- transaction Price Per Share: 0.00
- transaction Acquired Disposed Code: D
- id: F6
- id: F6
- underlying Security Title: Common Stock
- underlying Security Shares: 834.00
- shares Owned Following Transaction: 23355.00
- direct Or Indirect Ownership: D
Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.
Filing context
- Quantities and prices are shown in the units filed. No trade value is inferred from their product.
- Miller Michael Francis: Chief Technology Officer.
- F1: Restricted stock units convert into common stock on a one-for-one basis.
- F2: 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.
- F3: 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.
- F4: 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.
- F5: 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.
- F6: 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.
Original sources
Prepared automatically from public filing data. Report a correction.