Transaction · 0001279281-26-000003

Magovcevic-Liebisch Ivana

Magovcevic-Liebisch Ivana, DIR, reported a transaction classified as exercise at Quanterix Corp involving 4224.000000 shares. Reported holdings after the transaction were 15883.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MDIR
QTRXQuanterix Corp
Filing timeOct 02
Trade dateOct 02, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position tradedUnavailableCalculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$3.64
Pre-filing
1mo ago -28.3%1w ago -10.2%1d ago -6.3%
Returns since
7d30d90d180d1y

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 2026-10-02Filed today · 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
0001279281-26-000003
Common Stock
Transaction date
Oct 02, 2026
Filed Oct 02, 2026, 08:05 PM · 0d delay
Shares
4.22k sh
Price unknown
Estimated value
—
Computed from shares × price
Holdings after
15.8k 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 $100kLarge $1.00M
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 October 2, 2024, the reporting person was granted 12,800 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively.

Original filing · 0001279281-26-000003
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

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