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.
Q1 2026 vs. Q4 2025
How the institutions holding XBiotech Inc. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 41 | 2 | 37 | −2 |
| Shares | 2.30M | 312.9K | 1.99M | +10.4K (+0.5%) |
| Value | $5.48M | $747.8K | $4.68M | −$54.2K (−1.1%) |
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (6)
Institutions that held XBiotech Inc. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Vanguard Capital Management LLC | 200,971 | $472.3K | 0.00% |
| Vanguard Fiduciary Trust Co | 91,576 | $215.2K | 0.00% |
| Renaissance Technologies LLC | 22,438 | $52.7K | 0.00% |
| Vanguard Global Advisers, LLC | 7,009 | $16.5K | 0.00% |
| SRS Capital Advisors, Inc. | 15 | $35 | 0.00% |
| Caitong International Asset Management Co., Ltd | 11 | $26 | 0.00% |
Sold out (8)
Institutions that held XBiotech Inc. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Ameriprise Financial Inc | 186,796 | $446.4K |
| Goldman Sachs Group Inc | 16,831 | $40.2K |
| Two Sigma Advisers, LP | 16,300 | $39.0K |
| Persistent Asset Partners Ltd | 13,565 | $32.4K |
| Two Sigma Securities, LLC | 10,378 | $24.8K |
| FMR LLC | 450 | $1.08K |
| Simplex Trading, LLC | 67 | $160 |
| Barclays PLC | 1 | $2 |
Not filed for Q1 2026 yet (2)
Institutions that held XBiotech Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 299,556 | $715.9K |
| Thomasville National Bank | 13,350 | $31.9K |