Abivax S.A. ABVX
CIK 0001956827 · CUSIP 00370M103
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | TCG Crossover Management, LLC CIK 1839948 · View history | $46.33M 6,056,596 shares | 5.29% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2025 | ▾ |
| 02 | Deep Track Capital, LP CIK 1856083 · View history | $26.62M 3,480,144 shares | 0.86% | -99.06K(-2.8%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 03 | ADAR1 Capital Management, LLC CIK 1940272 · View history | $23.50M 3,071,340 shares | 3.82% | +861.32K(+39.0%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 04 | Cormorant Asset Management, LP CIK 1583977 · View history | $16.29M 2,130,000 shares | 1.21% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2025 | ▾ |
| 05 | Caligan Partners LP CIK 1727492 · View history | $12.81M 1,674,400 shares | 2.49% | +405.28K(+31.9%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 06 | Nantahala Capital Management, LLC CIK 1472322 · View history | $11.34M 1,482,994 shares | 0.80% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2025 | ▾ |
| 07 | FRANKLIN RESOURCES INC CIK 38777 · View history | $10.49M 1,371,050 shares | 0.00% | 0(0.0%)Unchanged | SEC filing ↗ Aug 12, 2025 | ▾ |
| 08 | Venrock Adviser, LLC CIK 1615982 · View history | $10.30M 1,345,780 shares | 0.77% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2025 | ▾ |
| 09 | GREAT POINT PARTNERS LLC CIK 1281446 · View history | $9.88M 1,291,617 shares | 6.42% | -346.49K(-21.2%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 10 | Octagon Capital Advisors LP CIK 1839435 · View history | $9.69M 1,267,000 shares | 2.13% | +37.00K(+3.0%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 11 | CITADEL ADVISORS LLC CIK 1423053 · View history | $9.58M 1,252,257 shares | 0.01% | -121.60K(-8.9%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 12 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $9.58M 1,251,765 shares | 0.01% | +264.35K(+26.8%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 13 | BOOTHBAY FUND MANAGEMENT, LLC CIK 1549230 · View history | $6.66M 870,438 shares | 0.20% | +299.77K(+52.5%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 14 | Aberdeen Group plc CIK 1716774 · View history | $5.44M 710,516 shares | 0.01% | 0(0.0%)Unchanged | SEC filing ↗ Jul 24, 2025 | ▾ |
| 15 | Saturn V Capital Management LP CIK 1964437 · View history | $4.76M 622,479 shares | 1.93% | +69.55K(+12.6%)Added | SEC filing ↗ Aug 13, 2025 | ▾ |
| 16 | MORGAN STANLEY CIK 895421 · View history | $3.64M 475,280 shares | 0.00% | -21.87K(-4.4%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 17 | Ensign Peak Advisors, Inc CIK 1454984 · View history | $3.49M 455,684 shares | 0.01% | 0(0.0%)Unchanged | SEC filing ↗ Aug 12, 2025 | ▾ |
| 18 | KENNEDY CAPITAL MANAGEMENT LLC CIK 884589 · View history | $1.85M 241,188 shares | 0.04% | +16.00K(+7.1%)Added | SEC filing ↗ Aug 13, 2025 | ▾ |
| 19 | Woodline Partners LP CIK 1784547 · View history | $1.41M 183,800 shares | 0.01% | -18.12K(-9.0%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 20 | CITIGROUP INC CIK 831001 · View history | $1.31M 170,733 shares | 0.00% | -13.51K(-7.3%)Reduced | SEC filing ↗ Aug 11, 2025 | ▾ |
Showing 20 / 44 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 44 reporting institutions.
This page includes 20 of 44 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 44 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"00370M103","quarter":"2025Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.