XBiotech Inc. - Common Shares, no par value (XBIT)

CUSIP: 98400H102

Q3 2026 13F Holders as of 30 Sep 2026

Holder snapshot 3 signals
Share change
0
SEC-reported price per share
$2.19
Number of holders
1
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
32,315,113

Security key

98400H102

Report period

Q3 2026

Institutions

1

Top holders

1

Ownership snapshot

Top reported holders of XBIT - XBiotech Inc. - Common Shares, no par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
John Simard
Disclosed value leader
John Simard
Comparable rows
2/15
Latest evidence
30 Jun 2026
13D/G 3/4/5 13F Lead comparable stake: 18% 13 rows are not safely comparable across share classes. 13D/G row: John Simard Showing 1-6 of 15 holder rows.

Quick read

John Simard leads the comparable SEC ownership view at 18%.

2 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens John Simard's linked filing trail.
Comparable ownership Top 2
John Simard 18%
W. Thorpe McKenzie 9.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
John Simard
13D/G 3/4/5
Chief Executive Officer, Director, 10%+ Owner
18%
Reported 13D/G · 31 Dec 2025
$13,784,658
5,719,775 shares
-$2,180,460 31 Dec 2025
W. Thorpe McKenzie
13D/G 3/4/5
Director, 10%+ Owner
9.8%
Reported 13D/G · 31 Dec 2025
$7,245,084
3,006,259 shares
+$45,188 31 Dec 2025
Thomas Martin Kuendig
3/4/5
Director
—
mixed-class rows
$1,017,000
379,115 shares
mixed-class rows
— 01 Oct 2025
BlackRock, Inc.
13F
Company
13F
—
denominator unverified
$738,636
321,146 shares
— 30 Jun 2026
Craig Evan Rademaker
3/4/5
Director
—
mixed-class rows
$579,638
263,089 shares
mixed-class rows
— 01 Oct 2025
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
—
denominator unverified
$492,755
214,116 shares
— 30 Jun 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
1
Shares
37
Rows available
1
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q3 2025 Across Filers

Q3 2025 holders
45
Q3 2026 holders
1
Holder diff
-44
Investor Q3 2025 Shares Q3 2026 Shares Share Diff Share Chg % Q3 2025 value Q3 2026 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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