Transaction · 0001207928-26-000002

DONNELLY WILLIAM P

DONNELLY WILLIAM P, CHAIR, reported a transaction classified as grant at Quanterix Corp involving 2377.000000 shares for an estimated $0.00. Reported holdings after the transaction were 150751.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

grantSEC transaction code ACHAIR
QTRXQuanterix Corp
Filing timeJan 07
Trade dateJan 02, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

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QTRX price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
QTRX since 2026-01-07Filed 240 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
grant
Code A
Identifier
0001207928-26-000002
Common Stock
Transaction date
Jan 02, 2026
Filed Jan 07, 2026, 12:16 AM · 5d delay
Shares
2.37k sh
$0 per share
Estimated value
$0
Computed from shares × price
Holdings after
150k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership
-16score
Filing-only score

-16

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Executive Chair

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the fourth quarter of 2025.

  2. F2

    Includes 2,802 restricted stock units.

Original filing · 0001207928-26-000002
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Same reporting owner
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