XBiotech Inc.
DE ˙ DB ˙ CA98400H1029
1,91 € ↓ -0,13 (-6,24%)
2026-06-04
DEL PRIS
SecurityDE:4XB / XBiotech Inc.
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership231,020 shares
Latest Disclosed Value $ 543,173
Geode Capital Management, Llc reports 4.48% increase in ownership of 4XB / XBiotech Inc.

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 231,020 shares of XBiotech Inc. (DE:4XB) valued at $427,387 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 221,121 shares of XBiotech Inc.. This represents a change in shares of 4.48% during the quarter. The current value of the position is $440,786 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F XBIOTECH COM 98400H102 231,020 9,899 4.48 543 2.84 0.0000
2026-02-09 2025-12-31 13F XBIOTECH COM 98400H102 221,121 -742 -0.33 529 -10.51 0.0000
2025-11-12 2025-09-30 13F XBIOTECH COM 98400H102 221,863 1,184 0.54 590 -9.92 0.0000
2025-08-08 2025-06-30 13F XBIOTECH COM 98400H102 220,679 -240,551 -52.15 656 -56.16 0.0000
2025-05-13 2025-03-31 13F XBIOTECH COM 98400H102 461,230 6,703 1.47 1,495 -16.77 0.0001
2025-02-12 2024-12-31 13F XBIOTECH COM 98400H102 454,527 2,263 0.50 1,796 -48.66 0.0001
2024-11-12 2024-09-30 13F XBIOTECH COM 98400H102 452,264 22,059 5.13 3,496 58.12 0.0003
2024-08-09 2024-06-30 13F XBIOTECH COM 98400H102 430,205 235,001 120.39 2,212 39.32 0.0002
2024-05-13 2024-03-31 13F XBIOTECH COM 98400H102 195,204 2,616 1.36 1,587 106.10 0.0001
2024-02-13 2023-12-31 13F XBIOTECH COM 98400H102 192,588 9,850 5.39 771 2.26 0.0001
2023-11-13 2023-09-30 13F XBIOTECH COM 98400H102 182,738 9,557 5.52 753 -26.75 0.0001
2023-08-11 2023-06-30 13F XBIOTECH COM 98400H102 173,181 18,098 11.67 1,029 92.15 0.0001
2023-05-15 2023-03-31 13F XBIOTECH COM 98400H102 155,083 0 0.00 535 0.0001
2023-02-13 2022-12-31 13F XBIOTECH COM 98400H102 155,083 3,342 2.20 1 -100.00 0.0001
2022-11-14 2022-09-30 13F XBIOTECH COM 98400H102 151,741 345 0.23 549 -35.56 0.0001
2022-08-12 2022-06-30 13F XBIOTECH COM 98400H102 151,396 -145,274 -48.97 852 -66.76 0.0001
2022-05-13 2022-03-31 13F XBIOTECH COM 98400H102 296,670 -12,711 -4.11 2,563 -25.56 0.0003
2022-02-11 2021-12-31 13F XBIOTECH COM 98400H102 309,381 3,263 1.07 3,443 -13.14 0.0004
2021-11-12 2021-09-30 13F XBIOTECH COM 98400H102 306,118 8,196 2.75 3,964 -19.64 0.0005
2021-08-13 2021-06-30 13F XBIOTECH COM 98400H102 297,922 24,684 9.03 4,933 5.16 0.0007
2021-05-12 2021-03-31 13F XBIOTECH COM 98400H102 273,238 32,851 13.67 4,691 24.69 0.0007
2021-02-12 2020-12-31 13F XBIOTECH COM 98400H102 240,387 -3,022 -1.24 3,762 -19.03 0.0006
2020-11-13 2020-09-30 13F XBIOTECH COM 98400H102 243,409 -18,252 -6.98 4,646 29.52 0.0009
2020-08-13 2020-06-30 13F XBIOTECH COM 98400H102 261,661 -14,997 -5.42 3,587 22.09 0.0008
2020-05-14 2020-03-31 13F XBIOTECH COM 98400H102 276,658 -59,821 -17.78 2,938 -53.22 0.0008
2020-02-20 2019-12-31 13F/A-1 XBIOTECH COM 98400H102 336,479 32,547 10.71 6,280 97.55 0.0013
2020-02-13 2019-12-31 13F XBIOTECH COM 98400H102 336,479 32,547 6,280 800.3309
2019-11-12 2019-09-30 13F XBIOTECH COM 98400H102 303,932 5,976 2.01 3,179 40.79 0.0007
2019-08-14 2019-06-30 13F XBIOTECH COM 98400H102 297,956 132,090 79.64 2,258 23.59 0.0005
2019-05-14 2019-03-31 13F XBIOTECH COM 98400H102 165,866 30,703 22.72 1,827 166.33 0.0005
2019-03-06 2018-12-31 13F/A-1 XBIOTECH COM 98400H102 135,163 0 0.00 686 59.91 0.0002
2019-02-13 2018-12-31 13F XBIOTECH COM 98400H102 135,163 0 686
2018-11-13 2018-09-30 13F XBIOTECH COM 98400H102 135,163 8,086 6.36 429 -24.60 0.0001
2018-08-14 2018-06-30 13F XBIOTECH COM 98400H102 127,077 -42,729 -25.16 569 -37.33 0.0002
2018-05-15 2018-03-31 13F XBIOTECH COM 98400H102 169,806 3,631 2.19 908 38.84 0.0003
2018-02-13 2017-12-31 13F XBIOTECH COM 98400H102 166,175 -3,574 -2.11 654 -11.74 0.0002
2017-11-14 2017-09-30 13F XBIOTECH COM 98400H102 169,749 7,136 4.39 741 -3.01 0.0003
2017-08-14 2017-06-30 13F XBIOTECH COM 98400H102 162,613 10,295 6.76 764 -69.57 0.0003
2017-06-21 2017-03-31 13F/A-1 XBIOTECH COM 98400H102 152,318 7,066 4.86 2,511 70.93 0.0010
2017-05-12 2017-03-31 13F XBIOTECH COM 98400H102 152,318 2,511
2017-02-14 2016-12-31 13F XBIOTECH COM 98400H102 145,252 2,212 1.55 1,469 -23.69 0.0007
2016-11-10 2016-09-30 13F XBIOTECH COM 98400H102 143,040 82,209 135.14 1,925 51.34 0.0010
2016-08-12 2016-06-30 13F XBIOTECH COM 98400H102 60,831 19,661 47.76 1,272 226.99 0.0007
2016-05-13 2016-03-31 13F XBIOTECH COM 98400H102 41,170 639 1.58 389 -11.59 0.0002
2016-02-12 2015-12-31 13F XBIOTECH COM 98400H102 40,531 635 1.59 440 -26.17 0.0003
2015-11-13 2015-09-30 13F XBIOTECH COM 98400H102 39,896 39,896 596 0.0004
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.