SC 13G: Abivax S.A.

AI Summary

SC 13G filing by Abivax S.A..

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Risk Level: low

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Filing Documents

• d829911dsc13g.htm (SC 13G) — 66KB
• d829911dex991.htm (EX-99.1) — 5KB
• 0001193125-24-103197.txt ( ) — 72KB

From the Filing

SC 13G 1 d829911dsc13g.htm SC 13G SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Abivax SA (Name of Issuer) Ordinary shares, par value 0.01 per share (Title of Class of Securities) 00370M103 (American Depositary Shares, each representing one ordinary share) (CUSIP Number) April 11, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: Rule 13d-1(b) Rule 13d-1(c) Rule 13d-1(d) * The remainder of this cover page shall be filled out for a reporting persons initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be filed for the purpose of Section 18 of the Securities Exchange Act of 1934 (Act) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP No. 00370M103 13G 1. NAMES OF REPORTING PERSONS TCG Crossover GP I, LLC 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a)(b) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 6,056,596 (1) 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 6,056,596 (1) 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,056,596 (1) 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.6% (2) 12. TYPE OF REPORTING PERSON (see instructions) OO (1) Consists of 6,056,596 ordinary shares (as defined in Item 2(d) below) in the form of American Depositary Shares (ADSs) of the Issuer (as defined in Item 1(a) below) held of record by TCG Crossover I (as defined in Item 2(a) below). Each ADS represents one (1) ordinary share. TCG Crossover GP I (as defined in Item 2(a) below) is the general partner of TCG Crossover I and may be deemed to have voting, investment, and dispositive power with respect to these securities. Chen Yu is the sole managing member of TCG Crossover GP I and may be deemed to share voting, investment and dispositive power with respect to these securities. (2) Based on 62,928,818 ordinary shares outstanding as of December 31, 2023, as reported by the Issuer in the Form 20-F filed with the Securities and Exchange Commission (the Commission) on April 5, 2024 (the Form 20-F). CUSIP No. 00370M103 13G 1. NAMES OF REPORTING PERSONS TCG Crossover Fund I, L.P. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a)(b) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 6,056,596 (1) 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 6,056,596 (1) 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,056,596 (1) 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.6% (2) 12. TYPE OF REPORTING PERSON (see instructions) PN (1) Consists of 6,056,596 ordinary shares in the form of ADSs of the Issuer held of record by TCG Crossover I. Each ADS represents one (1) ordinary share. TCG Crossover GP I is the general partner of TCG Crossover I and may be deemed to have voting, investment, and dispositive power with respect to these securities. Chen Yu is the sole managing member of TCG Crossover GP I and may be deemed to share voting, investment and dispositive power with respect to these securities. (2) Based on 62,928,818 ordinary shares outstanding as of December 31, 2023, as reported by the Issuer in the Form 20-F. CUSIP No. 00370M103 13G 1. NAMES OF REPORTING PERSONS Chen Yu 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a)(b) 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION United States of America NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 0 6. SHARED VOTING POWER 6,056,596 (1) 7. SOLE DISPOSITIVE POWER 0 8. SHARED DISPOSITIVE POWER 6,056,596 (1) 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,056,596 (1) 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 9.6% (2) 12. TYPE OF REPORTING PERSON (see instructions) IN (1) Consists of 6,056,596 ordinary shares in the

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