SCHEDULE 13G: Logos Global Management Discloses 6.0% Passive Stake in Annexon, Inc.

Logos Global Management LP and its affiliated entities have disclosed a passive beneficial ownership of 6.0% in Annexon, Inc.'s common stock, totaling 6,600,000 shares.

Summary

• Logos Global Management LP, Logos Global Management GP LLC, Logos Global Master Fund LP, Logos GP LLC, and Arsani William collectively reported beneficial ownership of 6,600,000 shares of Annexon, Inc. Common Stock.
• This ownership represents 6.0% of Annexon, Inc.'s outstanding Common Stock.
• The percentage is calculated based on 109,709,826 shares of Common Stock outstanding as of February 28, 2025, as reported in Annexon's Form 10-K for the fiscal year ended December 31, 2024.
• All reporting persons hold shared voting power and shared dispositive power over the 6,600,000 shares.
• The filing is made under Rule 13d-1(c), indicating a passive investment intent, meaning the shares were not acquired or held for the purpose of changing or influencing control of the issuer.

Sentiment

Score: 7

Explanation: The disclosure of a new, significant passive institutional stake is generally viewed positively as it indicates investor confidence and potential long-term support for the company.

Positives

• A significant institutional investor, Logos Global Management, has taken a 6.0% stake in Annexon, Inc., which can be viewed as a vote of confidence in the company's prospects.
• The investment is stated to be for passive purposes, suggesting a long-term holding strategy rather than an activist intent.

Risks

• No specific risks related to Annexon, Inc.'s operations, financial health, or strategic direction are disclosed in this beneficial ownership filing.

Future Outlook

This Schedule 13G filing does not contain any forward-looking statements or guidance regarding Annexon, Inc.'s future performance or strategic outlook.

Management Comments

• The reporting persons certify that, to the best of their knowledge and belief, the securities were acquired and are held in the ordinary course of business and not for the purpose of or with the effect of changing or influencing the control of the issuer.

Industry Context

This filing indicates a significant institutional investment in Annexon, Inc., a biotechnology company. Such investments are common in the biotech sector, where long-term capital is often required for research, development, and commercialization of new therapies.

Related Party Transactions

• The reporting persons (Logos Global Management LP, Logos Global Management GP LLC, Logos Global Master Fund LP, Logos GP LLC, and Arsani William) have entered into an agreement to file jointly any required statements under Section 13(d) or 16(a) of the Securities Exchange Act of 1934, designating Logos Global Management LP as their agent. This is an agreement among the reporting parties for filing purposes, not a transaction involving Annexon, Inc.

Stakeholder Impact

• Shareholders may view the entry of a new institutional investor with a significant stake as a positive signal, potentially increasing confidence in the company's stock.
• The passive nature of the investment suggests no immediate impact on corporate governance or strategic direction from this new shareholder.

Key Dates

Keywords

Annexon Inc., Logos Global Management, Beneficial Ownership, Institutional Investment, Common Stock, SEC Filing, ANXN, Schedule 13G, Passive Investment