SCHEDULE: TCG Crossover Entities Adjust Abivax Stake

TCG Crossover entities have filed an amendment to their Schedule 13G, reporting a combined beneficial ownership of 7.0% in Abivax SA ordinary shares following a recent offering.

Summary

• This filing is an amendment to a Schedule 13G, reporting changes in beneficial ownership of Abivax SA ordinary shares by TCG Crossover Fund I, L.P., TCG Crossover GP I, LLC, TCG Crossover Fund II, L.P., TCG Crossover GP II, LLC, and Chen Yu.
• The reporting persons collectively hold 6,007,834 ordinary shares, representing 7.0% of the outstanding shares.
• This ownership is based on 86,094,535 shares outstanding as of July 2, 2026, following an underwritten offering.
• TCG Crossover GP I and GP II are general partners, and Chen Yu is the sole managing member, with shared voting and dispositive power over the held securities.

Sentiment

Score: 3

Explanation: StockSavvy.ai views this filing as having a neutral to slightly negative sentiment due to its nature as a Schedule 13G amendment, primarily reporting changes in beneficial ownership rather than operational performance.

Positives

• The reporting entities have a significant, though passive, stake in Abivax SA, indicating continued interest.
• The filing clarifies the ownership structure and beneficial interest held by TCG Crossover entities and Chen Yu.

Negatives

• The filing does not contain operational or financial performance data, making it difficult to assess the company's health from this document alone.
• The disclosure is an amendment to a previous filing, suggesting adjustments to holdings rather than a new strategic initiative.

Risks

• Potential for further adjustments in beneficial ownership by the reporting persons.
• The passive nature of the ownership reported means these entities are not actively involved in management or strategic direction, which could be a risk if active oversight is needed.

Future Outlook

This filing does not contain forward-looking statements or guidance from the company. It solely reports on beneficial ownership.

Management Comments

• Each of the Reporting Persons disclaims beneficial ownership as to such securities, except to the extent of his or its pecuniary interest therein.

Industry Context

StockSavvy.ai notes that Schedule 13G filings typically report passive investors who own more than 5% of a company's stock. This filing indicates significant institutional interest in Abivax SA, but the passive nature means these entities are not seeking control or influencing management decisions.

Stakeholder Impact

• Shareholders: The filing provides transparency on significant beneficial ownership, which can influence market perception. The passive nature of the ownership suggests no immediate intent to control or influence company strategy.
• Management: The filing does not indicate any direct impact on management's operational control or strategic direction.

Next Steps

• The reporting persons will continue to monitor their beneficial ownership in Abivax SA and may file further amendments as required by regulations.

Key Dates

Keywords

Abivax SA, Schedule 13G, Beneficial Ownership, TCG Crossover, Ordinary Shares, American Depositary Shares, SEC Filing, Chen Yu