Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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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(Print or Type Responses)

1. Name and Address of Reporting Person * Sanfilippo Thomas 2. Issuer Name and Ticker or Trading Symbol WhiteFiber, Inc. [WYFI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Technology Officer (Last) (First) (Middle) C/O WHITEFIBER, INC 31 HUDSON YARDS, FLOOR 11, SUITE 30 3. Date of Earliest Transaction (Month/Day/Year) 07/31/2026 (Street) NEW YORK, NY 10001 4. If Amendment, Date 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 (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Ordinary Shares, $01 par value 07/31/2026 M 4,412(1) A (2) 21,732 D Ordinary Shares, $01 par value 08/05/2026 F(4) 1,259(3) D $26.34(4) 20,473 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Restricted Stock Units

(2)

07/31/2026

M

4,412

(5)

(5)

Ordinary Shares

4,412

$ 0

39,708

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Sanfilippo Thomas C/O WHITEFIBER, INC 31 HUDSON YARDS FLOOR 11, SUITE 30 NEW YORK, NY 10001			Chief Technology Officer

Signatures

/s/ Thomas Sanfilippo		10/16/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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).
(1)	Represents 4,412 Ordinary Shares, par value $0.01 per share, of the Issuer, which were issued upon vesting of Restricted Stock Units ("RSUs") on July 31, 2026, under the Issuer's 2025 Omnibus Equity Incentive Plan (the "Plan") pursuant to Rule 16b-3, of which a total of 30,880 have vested.
(2)	RSUs convert into Ordinary Shares on a one-for-one basis.
(3)	Represents Ordinary Shares, sold on August 5, 2026, to pay tax liability of the shares issued on July 31, 2026, upon the vesting of RSUs granted under the Issuer's Plan pursuant to Rule 16b-3. This does not represent a discretionary transaction by a reporting person.
(4)	The price reported in Column 4 is a weighted average price. These Ordinary Shares were sold in multiple transactions at prices ranging from $26.33 to $26.36, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, with full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(5)	On September 11, 2025, the Reporting Person was initially granted 70,588 RSUs, vesting in 12 equal quarterly installments with a one-year cliff, beginning on October 31, 2025.

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