SCHEDULE: Weiss Asset Management Discloses 5.2% Stake in Semler Scientific

Weiss Asset Management LP, WAM GP LLC, and Andrew M. Weiss have reported a 5.2% beneficial ownership stake in Semler Scientific, Inc. as of December 31, 2025.

Summary

• Weiss Asset Management LP, WAM GP LLC, and Andrew M. Weiss collectively reported beneficial ownership of 801,086 shares of Semler Scientific, Inc. common stock.
• This represents a 5.2% stake in the company, calculated based on 15,285,092 shares outstanding as of November 19, 2025.
• The reporting persons share both voting and dispositive power over all 801,086 shares.
• The securities were acquired and are held in the ordinary course of business, without the purpose or effect of changing or influencing control of Semler Scientific, Inc.

Sentiment

Score: 7

Explanation: StockSavvy.ai views this as moderately positive, as a significant institutional investment typically signals confidence in the company's long-term prospects and could attract further investor interest.

Positives

• A significant institutional investor, Weiss Asset Management, has taken a 5.2% stake, indicating potential confidence in Semler Scientific's prospects.
• The investment is 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

• 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

StockSavvy.ai notes that a new 5.2% stake by an established asset manager like Weiss Asset Management in Semler Scientific could signal increased institutional interest in the healthcare technology sector, particularly in companies focused on diagnostic tools or data-driven health solutions. This could potentially attract further investor attention to Semler Scientific and its peers.

Comparison to Industry Standards

• StockSavvy.ai notes that a 5.2% stake by an institutional investor is a significant position, often indicating a long-term strategic interest.
• While direct comparisons to specific companies or projects are not provided in this filing, such an investment size is generally considered a substantial vote of confidence, aligning with typical institutional investment patterns in growth-oriented healthcare companies.

Stakeholder Impact

• Shareholders: The disclosure of a significant institutional investor taking a stake could be perceived positively, potentially boosting investor confidence and share price.
• Management: May feel increased scrutiny or validation from a new large shareholder, though the filing states no intent to influence control.

Next Steps

• Semler Scientific, Inc. will continue its operations.
• Weiss Asset Management LP, WAM GP LLC, and Andrew M. Weiss will continue to hold their beneficial ownership in Semler Scientific, Inc. and will file updates as required by SEC regulations.

Key Dates

Keywords

Semler Scientific, Weiss Asset Management, WAM GP LLC, Andrew M. Weiss, beneficial ownership, Schedule 13G, common stock, institutional investment, healthcare technology