XBiotech Inc.
XBIT- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001626878
No open-market purchases or sales by XBiotech Inc. insiders were filed in the last 90 days; 36 institutions reported holding it in 13F filings for Q2 2026, worth $4.56M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in XBiotech Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 41
- −4 vs. Q3 2025
- Shares held
- 2.30M
- −616.4K (−21.2%) vs. Q3 2025
- Total value
- $5.48M
- −$2.26M (−29.2%) vs. Q3 2025
- New holders
- 4
- 8 more added
- Sold out
- 8
- 17 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting XBIT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 36 | $4.56M |
| Q1 2026 | 37 | $4.68M |
| Q4 2025 | 41 | $5.48M |
| Q3 2025 | 48 | $7.81M |
| Q2 2025 | 53 | $10.1M |
| Q1 2025 | 55 | $14.5M |
| Q4 2024 | 53 | $18.6M |
| Q3 2024 | 50 | $37.5M |
| Q2 2024 | 46 | $23.2M |
| Q1 2024 | 46 | $32.5M |
| Q4 2023 | 39 | $13.8M |
| Q3 2023 | 38 | $14.0M |
| Q2 2023 | 39 | $20.7M |
| Q1 2023 | 39 | $8.61M |
| Q4 2022 | 41 | $9.68M |
| Q3 2022 | 45 | $11.1M |
| Q2 2022 | 56 | $18.9M |
| Q1 2022 | 64 | $34.9M |
| Q4 2021 | 61 | $46.8M |
| Q3 2021 | 66 | $56.7M |
| Q2 2021 | 56 | $66.8M |
| Q1 2021 | 65 | $74.1M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding XBiotech Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 186 | $0 | 0.00% | −2,569−93.2% | Reduced |
| CWM, LLC | 23 | $0 | 0.00% | −104−81.9% | Reduced |
| Barclays PLC | 1 | $2 | 0.00% | −206−99.5% | Reduced |
| SBI Securities Co., Ltd. | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 8 | $19 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 21 | $50 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 67 | $160 | 0.00% | −255−79.2% | Reduced |
| Jones Financial Companies LLLP | 370 | $884 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 450 | $1.08K | 0.00% | +140+45.2% | Added |
| McIlrath & Eck, LLC | 753 | $1.80K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 928 | $2.22K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,128 | $2.69K | 0.00% | −1,254−52.6% | Reduced |
| UBS Group AG | 5,061 | $12.1K | 0.00% | −1,422−21.9% | Reduced |
| Two Sigma Securities, LLC | 10,378 | $24.8K | 0.00% | +10,378 | New |
| Pinnacle Financial Partners, Inc. | 11,796 | $28.2K | 0.00% | +11,796 | New |
| Thomasville National Bank | 13,350 | $31.9K | 0.00% | 00.0% | Unchanged |
| Persistent Asset Partners Ltd | 13,565 | $32.4K | 0.02% | +13,565 | New |
| Two Sigma Advisers, LP | 16,300 | $39.0K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 16,831 | $40.2K | 0.00% | −8,171−32.7% | Reduced |
| American Century Companies Inc | 18,881 | $45.1K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 20,611 | $49.3K | 0.00% | −9,706−32.0% | Reduced |
| XTX Topco Ltd | 21,703 | $51.9K | 0.00% | +6,647+44.1% | Added |
| National Bank of Canada | 25,000 | $58.8K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 26,864 | $64.2K | 0.00% | +6,254+30.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 30,229 | $72.2K | 0.00% | −5,800−16.1% | Reduced |
| Bank of America Corp | 35,895 | $85.8K | 0.00% | −11,494−24.3% | Reduced |
| Bank of New York Mellon Corp | 48,451 | $115.8K | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 50,695 | $121.0K | 0.00% | −13,621−21.2% | Reduced |
| Empowered Funds, LLC | 59,547 | $142.3K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 64,004 | $153.0K | 0.00% | +1,845+3.0% | Added |
| Jane Street Group, LLC | 69,738 | $166.7K | 0.00% | +13,971+25.1% | Added |
| State Street Corp | 73,006 | $174.5K | 0.00% | +5,700+8.5% | Added |
| Northern Trust Corp | 76,439 | $182.7K | 0.00% | −5,185−6.4% | Reduced |
| Bridgeway Capital Management, LLC | 89,547 | $214.0K | 0.00% | +30,000+50.4% | Added |
| Millennium Management LLC | 135,438 | $323.7K | 0.00% | −280,906−67.5% | Reduced |
| Morgan Stanley | 163,419 | $390.6K | 0.00% | +41,966+34.6% | Added |
| Ameriprise Financial Inc | 186,796 | $446.4K | 0.00% | +186,796 | New |
| RBF Capital, LLC | 198,501 | $474.4K | 0.02% | −1,499−0.7% | Reduced |
| Geode Capital Management, LLC | 221,121 | $528.7K | 0.00% | −742−0.3% | Reduced |
| BlackRock, Inc. | 288,632 | $689.8K | 0.00% | −13,754−4.5% | Reduced |
| Vanguard Group Inc | 299,556 | $715.9K | 0.00% | −519,683−63.4% | Reduced |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −42,816−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −26,156−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −22−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Sunbelt Securities, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Synovus Financial Corp | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |