AMERIPRISE FINANCIAL INC - 30 Apr 2025 SCHEDULE 13G/A Report for Quanterix Corp Common Stock (QTRX)

Filing Manager
AMERIPRISE FINANCIAL INC
Reporting Manager
Ameriprise Financial, Inc.
Security
Quanterix Corp Common Stock
Symbol
QTRX
Shares outstanding
38.9M shares
Disclosed Ownership
4.16M shares
Ownership
10.7%
Form type
SCHEDULE 13G/A
Filing time
07 May 2025, 10:44:05 UTC
Date of event
30 Apr 2025
Previous filing
15 May 2025
Next filing
14 Nov 2025
SEC
View on sec.gov

Reporting Managers (8)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Ameriprise Financial, Inc. 10.7% 4.16M 0 4.16M /s/ Michael G. Clarke Michael G. Clarke, Senior Vice President, North America Head of Operations & Investor Services
TAM UK International Holdings Limited 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services
Threadneedle Holdings Limited 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services
TAM UK Holdings Limited 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services
Threadneedle Asset Management Holdings Limited 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services
TC Financing Ltd 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services
Threadneedle Asset Management Limited 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services
Threadneedle Investment Services Limited 7.9% 3.06M 0 3.06M /s/ Michael G. Clarke By: Columbia Management Investment Advisers, LLC, as Attorney in Fact, By: Michael G. Clarke, S.V.P., North America H.O. & Investor Services