SCHEDULE 13G/A: Ameriprise Financial and Affiliates Disclose Significant Stake in Quanterix Corp

Ameriprise Financial, Inc. and its affiliated entities have reported a collective beneficial ownership of 9.6% in Quanterix Corp's common stock as of March 31, 2025.

Summary

• Ameriprise Financial, Inc. and its subsidiaries, collectively referred to as the "Ameriprise Entities," have filed an Amendment No. 1 to Schedule 13G regarding their beneficial ownership in Quanterix Corp.
• As of March 31, 2025, Ameriprise Financial, Inc. beneficially owns 3,715,238 shares of Quanterix Corp common stock, representing 9.6% of the class.
• This aggregate ownership includes shares held by its UK-based subsidiaries, such as TAM UK International Holdings Limited, Threadneedle Holdings Limited, TAM UK Holdings Limited, Threadneedle Asset Management Holdings Limited, TC Financing Ltd, Threadneedle Asset Management Limited, and Threadneedle Investment Services Limited.
• Each of these UK-based subsidiaries individually reported beneficial ownership of 2,999,012 shares, representing 7.7% of the class, with shared voting and dispositive power.
• The filing explicitly states that these securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of Quanterix Corp.

Sentiment

Score: 5

Explanation: The document is a routine regulatory filing disclosing beneficial ownership, providing factual information without expressing positive or negative sentiment about the issuer's performance or future.

Positives

• The disclosure of a significant institutional investment from Ameriprise Financial and its affiliates indicates a vote of confidence in Quanterix Corp.
• The acquisition of shares was stated to be in the ordinary course of business, suggesting a long-term investment perspective rather than an activist stance.

Future Outlook

NA

Management Comments

• "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11."

Industry Context

The filing reflects a significant institutional investment in a publicly traded company, common practice for large asset management firms like Ameriprise Financial and its Threadneedle affiliates. Such filings provide transparency on major ownership stakes, which can influence market perception and liquidity.

Comparison to Industry Standards

• This is a standard Schedule 13G filing, which is a regulatory requirement for investors acquiring more than 5% beneficial ownership in a company's stock.
• The percentages reported (9.6% for Ameriprise Financial and 7.7% for its subsidiaries) are substantial and indicate a significant position for an institutional investor.
• No specific comparable companies, projects, or results are mentioned in the document itself for direct comparison.

Stakeholder Impact

• Shareholders: The disclosure of a significant institutional stake by Ameriprise Financial and its affiliates may be viewed positively, signaling confidence from a major investor. It could potentially influence trading volume and share price.
• Management: Awareness of a large institutional holder may influence management's strategic decisions, though the filing explicitly states the shares are not held for control purposes.

Key Dates

Keywords

Quanterix Corp, Ameriprise Financial, Schedule 13G, Beneficial Ownership, Common Stock, Institutional Investment, SEC Filing, Financial Reporting, Asset Management, Threadneedle