David R. Walt - 01 Oct 2025 Form 4 Insider Report for Quanterix Corp (QTRX)

Role
Director
Signature
/s/ Brian Keane, as Attorney-in-Fact
Issuer symbol
QTRX
Transactions as of
01 Oct 2025
Net transactions value
+$14,371
Form type
4
Filing time
03 Oct 2025, 20:04:53 UTC
Previous filing
02 Jul 2025
Next filing
06 Jan 2026
SEC
View on sec.gov

Sponsored

Quoteable Key Fact

"David R. Walt filed Form 4 for Quanterix Corp (QTRX) on 03 Oct 2025."

Quick Takeaways

  • This page summarizes David R. Walt's Form 4 filing for Quanterix Corp (QTRX).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Filing timestamp: 03 Oct 2025, 20:04.

What Changed

  • Previous filing in this sequence was filed on 02 Jul 2025.
  • Current net transaction value: +$14,371.

Why This Matters

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Official SEC Source

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

See Original Filing

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
WALT DAVID R Director C/O QUANTERIX CORPORATION,, 900 MIDDLESEX TURNPIKE, BILLERICA /s/ Brian Keane, as Attorney-in-Fact 03 Oct 2025 0001205236

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction QTRX Common Stock Award $14,371 +2,594 +0.14% $5.54 1,871,675 01 Oct 2025 Direct F1, F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the third quarter of 2025.
F2 Closing price of the Company's common stock on the Nasdaq Global Market on October 1, 2025.
F3 Includes 7,435 restricted stock units.

Sponsored