SCHEDULE: Vanguard Group Adjusts Annexon Inc. Ownership Reporting

The Vanguard Group has amended its Schedule 13G for Annexon Inc., reporting 0% beneficial ownership following an internal realignment.

Summary

• The Vanguard Group filed an Amendment No. 1 to its Schedule 13G for Annexon Inc. Common Stock.
• The filing reports 0% beneficial ownership by The Vanguard Group of Annexon Inc. Common Stock.
• This change is a result of an internal realignment at The Vanguard Group, Inc. that occurred on January 12, 2026.
• Following the realignment, certain subsidiaries or business divisions of The Vanguard Group, Inc. will now report beneficial ownership separately (on a disaggregated basis).
• The Vanguard Group, Inc. no longer has, or is deemed to have, beneficial ownership over securities beneficially owned by these disaggregated subsidiaries and/or business divisions.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event for Annexon Inc. shareholders, as it primarily reflects an internal organizational change within The Vanguard Group rather than a change in investment thesis or a significant divestment.

Future Outlook

The filing does not provide any forward-looking statements or guidance regarding Annexon Inc.'s future performance or The Vanguard Group's future investment strategy beyond the described reporting change.

Management Comments

• On January 12, 2026, The Vanguard Group, Inc. went through an internal realignment.
• In accordance with SEC Release No. 34-39538 (January 12, 1998), certain subsidiaries or business divisions of subsidiaries of The Vanguard Group, Inc., that formerly had, or were deemed to have, beneficial ownership with The Vanguard Group, Inc., will report beneficial ownership separately (on a disaggregated basis) from The Vanguard Group, Inc. in reliance on such release.
• These subsidiaries and/or business divisions pursue the same investment strategies as previously pursued by The Vanguard Group, Inc. prior to the realignment.
• Further in accordance with SEC Release No. 34-39538 (January 12, 1998), The Vanguard Group, Inc. no longer has, or is deemed to have, beneficial ownership over securities beneficially owned by such subsidiaries and/or business divisions.

Industry Context

StockSavvy.ai notes that institutional investors like Vanguard frequently adjust their internal reporting structures, which can lead to changes in beneficial ownership filings without necessarily indicating a change in overall investment strategy or a divestment from the underlying company by the broader institution. This realignment reflects a common practice among large asset managers to disaggregate reporting for compliance and operational efficiency.

Stakeholder Impact

• Shareholders of Annexon Inc. might initially perceive a large institutional investor reducing its reported stake, but understanding the context of Vanguard's internal realignment clarifies that this is a reporting adjustment rather than a true divestment by the broader Vanguard entity.

Key Dates

Keywords

Annexon Inc., Vanguard Group, Schedule 13G, beneficial ownership, SEC filing, institutional ownership, investment adviser, common stock