Transaction · 0001689757-26-000005

Elliott Jeffrey Thomas

Elliott Jeffrey Thomas, DIR, reported a transaction classified as exercise at Quanterix Corp involving 3955.000000 shares. Reported holdings after the transaction were 15345.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MDIR
QTRXQuanterix Corp
Filing timeAug 20
Trade dateAug 19, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$3.12
Pre-filing
1mo ago +25.0%1w ago -6.1%1d ago -14.1%
Returns since
7d -15.4%30d -19.9%90d -19.9%180d -19.9%1y -19.9%

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 2026-08-20Filed 15 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
exercise
Code M
Identifier
0001689757-26-000005
Common Stock
Transaction date
Aug 19, 2026
Filed Aug 20, 2026, 08:59 PM · 1d delay
Shares
3.95k sh
Price unknown
Estimated value
Computed from shares × price
Holdings after
15.3k sh
Direct

Filing warnings

Notes recorded with this filing
1 warning
missing priceThe filing did not provide a usable price per share.

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership Large Holdings Increase
+2score
Filing-only score

+2

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

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

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

    Restricted stock units convert into common stock on a one-for-one basis.

  2. F2

    On August 19, 2024, the reporting person was granted 11,985 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively.

Original filing · 0001689757-26-000005
Related transactions

0 other filings

Same reporting owner
Recent company activity

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