[Form 3] XBiotech Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Craig Evan Rademaker filed an initial Form 3 reporting beneficial ownership in XBiotech Inc. (XBIT). The filing shows 104,237 shares held indirectly by the Rademaker 2020 Trust and 66,748 shares held indirectly by his spouse, for a combined disclosed position of 170,985 shares. The form identifies Mr. Rademaker as a director and was signed on 09/16/2025.

Insights

Financial Analyst

TL;DR: Director disclosed a non-trivial beneficial stake of 170,985 shares via trusts and spouse, standard initial SEC disclosure.

This Form 3 is a routine Section 16 initial ownership statement showing indirect holdings by a trust and spouse. The filing does not include derivative positions or transaction history, so it provides a snapshot of current beneficial ownership only. For valuation impact, investors must combine these share counts with current outstanding shares and market price; that information is not in this filing.

Corporate Governance Expert

TL;DR: Governance disclosure completed: director reported indirect holdings consistent with Section 16 requirements; no apparent compliance issues in the form.

The Form 3 identifies Mr. Rademaker as a director and discloses indirect ownership through a family trust and spouse, which is typical for initial insider filings. The absence of amendments, derivatives, or direct holdings limits insight into voting control or intent. The filing is procedural and fulfills initial reporting obligations.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Rademaker Craig Evan

(Last) (First) (Middle)

11-3085 DEER RIDGE CLOSE

(Street)

WEST VANCOUVER A1 V7S4W1

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/29/2025

3. Issuer Name and Ticker or Trading Symbol
XBiotech Inc. [ XBIT ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	104,237	I	By the Rademaker 2020 Trust
Common Stock	66,748	I	By Spouse

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	Craig Rademaker	09/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the Form 3 filed for XBIT report?

The Form 3 reported 104,237 shares held indirectly by the Rademaker 2020 Trust and 66,748 shares held indirectly by Mr. Rademaker's spouse, totaling 170,985 shares.

What role does the reporting person hold at XBiotech (XBIT)?

The filing identifies Craig Evan Rademaker as a director of XBiotech Inc.

Were any derivative securities disclosed in the Form 3 for XBIT?

No derivative securities (options, warrants, convertible securities) were listed in Table II of the Form 3.

When was the Form 3 signed by the reporting person?

The filing was signed by Craig Rademaker on 09/16/2025.

Does the Form 3 show any direct ownership by the reporting person?

No. The filing shows ownership as indirect (I) via the Rademaker 2020 Trust and spouse; no direct (D) holdings are listed.