ABVX — ABIVAX SA
Reported value held$1.33B
Funds holding (latest)32
SectorHealth Care
Funds holding (Q2 2026)28
Institutional value$1.12B · 8.70M sh
New / Add / Cut / Exit6 / 9 / 12 / 1
Top-5 / Top-10 concentration65.4% / 90.0%
Institutional holdings change
Reducing -39.7%
(-5.72M sh)
Institutional value change
Down -26.8%
As of Q2 2026, 28 SEC-registered investment managers reported holding ABVX (ABIVAX SA) in their latest 13F filings, with a combined reported value of $1.12B across 8.70M shares. That is -39.7% by share count (-5.72M shares) versus the previous quarter, while reported value moved -26.8%. Ownership is concentrated: the five largest holders account for 65.4% of reported value and the top ten for 90.0%.
Compared with the prior quarter, 6 opened new positions, 9 added to existing stakes, 12 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
ABVX is classified in the Health Care sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 28 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Morgan Stanley history | 1.43M | $190.85M | 0.01% | Reduce |
| Citadel Advisors history | 1.20M | $159.99M | 0.20% | Reduce |
| Norges Bank Investment Management history | 1.10M | $146.59M | 0.01% | New |
| Bank of America Corp history | 971.44K | $129.45M | 0.01% | Add |
| Goldman Sachs Group history | 792.71K | $105.64M | 0.03% | Add |
| Balyasny Asset Management history | 624.44K | $83.21M | 0.11% | Add |
| BlackRock Inc history | 574.06K | $76.50M | 0.00% | Add |
| Millennium Management history | 307.64K | $41.00M | 0.02% | Reduce |
| Franklin Resources history | 299.75K | $39.95M | 0.01% | Reduce |
| Principal Global Investors history | 257.68K | $34.34M | 0.02% | Reduce |
| Fidelity Management & Research (FMR) history | 191.69K | $25.54M | 0.00% | Reduce |
| D. E. Shaw & Co history | 130.36K | $17.37M | 0.01% | Add |
| Wellington Management Group history | 123.29K | $16.43M | 0.00% | New |
| Farallon Capital Management history | 122.00K | $16.26M | 0.07% | Add |
| Wells Fargo & Co history | 98.08K | $13.07M | 0.00% | Add |
| Geode Capital Management history | 51.87K | $6.91M | 0.00% | Add |
| Royce & Associates history | 45.10K | $6.01M | 0.05% | New |
| Maverick Capital history | 40.00K | $5.33M | 0.05% | New |
| Citigroup Inc history | 10.06K | $1.34M | 0.00% | Add |
| Manulife Financial history | 9.63K | $1.28M | 0.00% | Reduce |
| JPMorgan Chase & Co history | 5.72K | $549.79K | 0.00% | New |
| PNC Financial Services history | 3.77K | $502.26K | 0.00% | Hold |
| Charles Schwab Investment Management history | 3.32K | $442.56K | 0.00% | New |
| Invesco Ltd history | 3.06K | $407.51K | 0.00% | Reduce |
| Baron Funds history | 2.50K | $333.15K | 0.00% | Reduce |
| UBS Group AG history | 1.00K | $133.26K | 0.00% | Reduce |
| Point72 Asset Management history | 800 | $106.61K | 0.00% | Reduce |
| T. Rowe Price Associates history | 300.37K | $40.03K | 0.00% | Reduce |
Q1 2026 — 23 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 4.55M | $506.35M | 0.08% | Add |
| Morgan Stanley history | 1.70M | $189.85M | 0.01% | Reduce |
| Citadel Advisors history | 1.34M | $149.10M | 0.03% | Add |
| Fidelity Management & Research (FMR) history | 1.29M | $143.24M | 0.01% | Reduce |
| Janus Henderson Group history | 878.83K | $98.01M | 0.05% | Add |
| Bank of America Corp history | 735.73K | $81.92M | 0.01% | Add |
| Point72 Asset Management history | 647.24K | $72.07M | 0.10% | Reduce |
| Millennium Management history | 621.09K | $69.16M | 0.03% | Reduce |
| BlackRock Inc history | 427.33K | $47.58M | 0.00% | Reduce |
| Franklin Resources history | 382.83K | $42.63M | 0.01% | Reduce |
| Goldman Sachs Group history | 348.80K | $38.84M | 0.01% | Add |
| Principal Global Investors history | 312.27K | $34.77M | 0.02% | Add |
| Balyasny Asset Management history | 213.69K | $23.79M | 0.03% | Reduce |
| Invesco Ltd history | 126.42K | $14.08M | 0.00% | Add |
| D. E. Shaw & Co history | 55.15K | $6.14M | 0.00% | Add |
| Geode Capital Management history | 51.31K | $5.71M | 0.00% | Add |
| Manulife Financial history | 38.59K | $4.30M | 0.00% | Add |
| Baron Funds history | 5.50K | $612.42K | 0.00% | Reduce |
| PNC Financial Services history | 3.77K | $419.35K | 0.00% | Add |
| Wells Fargo & Co history | 2.90K | $322.47K | 0.00% | Add |
| Farallon Capital Management history | 2.00K | $222.70K | 0.00% | Reduce |
| Citigroup Inc history | 1.73K | $192.52K | 0.00% | Add |
| T. Rowe Price Associates history | 691.67K | $77.02K | 0.01% | Add |
Q4 2025 — 26 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 4.42M | $596.59M | 0.10% | Reduce |
| Morgan Stanley history | 3.15M | $425.06M | 0.03% | Add |
| Point72 Asset Management history | 2.91M | $392.31M | 0.46% | Reduce |
| Fidelity Management & Research (FMR) history | 1.37M | $184.17M | 0.01% | Reduce |
| Citadel Advisors history | 1.08M | $146.12M | 0.02% | Add |
| Deutsche Bank AG history | 764.90K | $103.15M | 0.03% | New |
| Millennium Management history | 741.06K | $99.94M | 0.04% | Reduce |
| Janus Henderson Group history | 667.76K | $90.04M | 0.04% | Add |
| Bank of America Corp history | 522.29K | $70.43M | 0.01% | Add |
| Balyasny Asset Management history | 493.32K | $66.53M | 0.09% | Add |
| Franklin Resources history | 449.12K | $60.57M | 0.01% | Reduce |
| BlackRock Inc history | 436.71K | $58.89M | 0.00% | New |
| Farallon Capital Management history | 387.00K | $52.19M | 0.25% | Reduce |
| Goldman Sachs Group history | 263.53K | $35.54M | 0.00% | Add |
| Principal Global Investors history | 217.89K | $29.38M | 0.01% | New |
| Invesco Ltd history | 125.40K | $16.91M | 0.00% | New |
| Marshall Wace history | 59.76K | $8.06M | 0.01% | Reduce |
| Geode Capital Management history | 49.93K | $6.73M | 0.00% | Add |
| Manulife Financial history | 35.53K | $4.92M | 0.00% | Add |
| Baron Funds history | 25.00K | $3.37M | 0.01% | Add |
| D. E. Shaw & Co history | 17.60K | $2.37M | 0.00% | Reduce |
| PNC Financial Services history | 3.25K | $437.60K | 0.00% | Add |
| Citigroup Inc history | 1.67K | $225.75K | 0.00% | Add |
| Wells Fargo & Co history | 737 | $99.39K | 0.00% | Add |
| T. Rowe Price Associates history | 651.64K | $87.88K | 0.01% | Add |
| JPMorgan Chase & Co history | 600 | $80.91K | 0.00% | New |
Q3 2025 — 21 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| UBS Group AG history | 4.46M | $378.76M | 0.06% | Add |
| Point72 Asset Management history | 2.93M | $248.36M | 0.44% | Add |
| Morgan Stanley history | 1.47M | $124.86M | 0.01% | Add |
| Fidelity Management & Research (FMR) history | 1.43M | $121.46M | 0.01% | New |
| Millennium Management history | 1.10M | $93.39M | 0.04% | Reduce |
| Farallon Capital Management history | 805.00K | $68.34M | 0.28% | New |
| Citadel Advisors history | 695.68K | $59.06M | 0.01% | Reduce |
| Franklin Resources history | 516.09K | $43.82M | 0.01% | Reduce |
| Janus Henderson Group history | 354.73K | $30.11M | 0.01% | New |
| Marshall Wace history | 189.70K | $16.11M | 0.02% | New |
| Balyasny Asset Management history | 160.22K | $13.60M | 0.02% | New |
| Goldman Sachs Group history | 135.63K | $11.51M | 0.00% | New |
| Bank of America Corp history | 95.59K | $8.12M | 0.00% | Add |
| Geode Capital Management history | 29.85K | $2.53M | 0.00% | Add |
| D. E. Shaw & Co history | 27.54K | $2.34M | 0.00% | New |
| Manulife Financial history | 26.14K | $2.22M | 0.00% | New |
| Baron Funds history | 14.00K | $1.19M | 0.00% | New |
| Wells Fargo & Co history | 717 | $60.87K | 0.00% | New |
| T. Rowe Price Associates history | 479.87K | $40.74K | 0.00% | New |
| PNC Financial Services history | 141 | $11.97K | 0.00% | New |
| Citigroup Inc history | 51 | $4.33K | 0.00% | Reduce |
Q2 2025 — 12 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Franklin Resources history | 1.37M | $10.49M | 0.00% | Hold |
| Citadel Advisors history | 1.25M | $9.58M | 0.00% | Reduce |
| Citadel Advisors history | 1.25M | $9.58M | 0.00% | Reduce |
| Millennium Management history | 1.25M | $9.58M | 0.01% | Add |
| Morgan Stanley history | 475.28K | $3.64M | 0.00% | Reduce |
| Morgan Stanley history | 475.28K | $3.64M | 0.00% | Reduce |
| Citigroup Inc history | 170.73K | $1.31M | 0.00% | Reduce |
| Point72 Asset Management history | 167.89K | $1.28M | 0.00% | Add |
| Point72 Asset Management history | 167.89K | $1.28M | 0.00% | Add |
| UBS Group AG history | 167.66K | $1.28M | 0.00% | Add |
| Geode Capital Management history | 16.82K | $128.66K | 0.00% | Hold |
| Bank of America Corp history | 536 | $4.10K | 0.00% | Reduce |
Q1 2025 — 15 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 1.37M | $8.59M | 0.00% | Add |
| Citadel Advisors history | 1.37M | $8.59M | 0.00% | Add |
| Franklin Resources history | 1.37M | $8.57M | 0.00% | Reduce |
| Millennium Management history | 987.41K | $6.17M | 0.00% | Add |
| JPMorgan Chase & Co history | 907.68K | $5.67M | 0.00% | Add |
| JPMorgan Chase & Co history | 907.68K | $5.67M | 0.00% | Add |
| Morgan Stanley history | 497.15K | $3.11M | 0.00% | Add |
| Morgan Stanley history | 497.15K | $3.11M | 0.00% | Add |
| Citigroup Inc history | 184.24K | $1.15M | 0.00% | New |
| UBS Group AG history | 162.55K | $1.02M | 0.00% | Reduce |
| Marshall Wace history | 74.84K | $467.76K | 0.00% | New |
| Point72 Asset Management history | 29.42K | $183.86K | 0.00% | Reduce |
| Point72 Asset Management history | 29.42K | $183.86K | 0.00% | Reduce |
| Geode Capital Management history | 16.75K | $104.68K | 0.00% | Hold |
| Bank of America Corp history | 10.71K | $66.91K | 0.00% | Add |
New Positions (Q2 2026)
- Norges Bank Investment Management 1.10M sh · $146.59M
- Wellington Management Group 123.29K sh · $16.43M
- Royce & Associates 45.10K sh · $6.01M
- Maverick Capital 40.00K sh · $5.33M
- JPMorgan Chase & Co 5.72K sh · $549.79K
- Charles Schwab Investment Management 3.32K sh · $442.56K
Fully Exited (vs previous quarter)
- Janus Henderson Group sold 878.83K sh · $98.01M
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Morgan Stanley | 1.43M | 1.70M | 3.15M | 1.47M | 475.28K | 497.15K | 479.33K | 504.75K | 563.55K | 593.46K | 427.95K |
| Citadel Advisors | 1.20M | 1.34M | 1.08M | 695.68K | 1.25M | 1.37M | 855.68K | 466.43K | 454.76K | 551.51K | 732.87K |
| Norges Bank Investment Management | 1.10M | — | — | — | — | — | — | — | — | — | — |
| Bank of America Corp | 971.44K | 735.73K | 522.29K | 95.59K | 536 | 10.71K | 5.54K | 3.55K | 2.82K | 2.27K | — |
| Goldman Sachs Group | 792.71K | 348.80K | 263.53K | 135.63K | — | — | — | — | — | — | — |
| Balyasny Asset Management | 624.44K | 213.69K | 493.32K | 160.22K | — | — | — | — | — | — | — |
| BlackRock Inc | 574.06K | 427.33K | 436.71K | — | — | — | — | — | — | — | — |
| Millennium Management | 307.64K | 621.09K | 741.06K | 1.10M | 1.25M | 987.41K | 931.18K | 645.64K | 77.60K | 137.81K | 130.32K |
| Franklin Resources | 299.75K | 382.83K | 449.12K | 516.09K | 1.37M | 1.37M | 1.47M | 1.32M | 1.40M | 1.40M | 1.25M |
| Principal Global Investors | 257.68K | 312.27K | 217.89K | — | — | — | — | — | — | — | — |
| Fidelity Management & Research (FMR) | 191.69K | 1.29M | 1.37M | 1.43M | — | — | — | — | — | — | 34.70K |
| D. E. Shaw & Co | 130.36K | 55.15K | 17.60K | 27.54K | — | — | — | — | — | — | — |
| Wellington Management Group | 123.29K | — | — | — | — | — | — | — | — | — | — |
| Farallon Capital Management | 122.00K | 2.00K | 387.00K | 805.00K | — | — | — | — | — | — | — |
| Wells Fargo & Co | 98.08K | 2.90K | 737 | 717 | — | — | — | — | — | — | — |
| Geode Capital Management | 51.87K | 51.31K | 49.93K | 29.85K | 16.82K | 16.75K | 16.75K | 15.57K | 14.39K | 14.39K | — |
| Royce & Associates | 45.10K | — | — | — | — | — | — | — | — | — | — |
| Maverick Capital | 40.00K | — | — | — | — | — | — | — | — | — | — |
| Citigroup Inc | 10.06K | 1.73K | 1.67K | 51 | 170.73K | 184.24K | — | — | — | — | — |
| Manulife Financial | 9.63K | 38.59K | 35.53K | 26.14K | — | — | — | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
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