Billy Krassakopoulos - 13 Jan 2026 Form 4 Insider Report for WhiteFiber, Inc. (WYFI)

Reporting relationship: President
Issuer ticker: WYFI
Reported as of: 13 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Mar 2026, 16:30:28 UTC
Prior SEC filing: 19 Nov 2025
Next SEC filing: 29 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Billy Krassakopoulos

Key filing fact

Billy Krassakopoulos filed Form 4 for WhiteFiber, Inc. (WYFI) on 17 Mar 2026.

Key facts

This page summarizes Billy Krassakopoulos's Form 4 filing for WhiteFiber, Inc. (WYFI).
4 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 17 Mar 2026, 16:30.

Change

Previous filing in this sequence was filed on 19 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002058419 Primary reporting owner

Krassakopoulos Billy

Relationship: President
Address: C/O WHITEFIBER, INC 31 HUDSON YARDS, FLOOR 11, SUITE 30, NEW YORK
Signature: /s/ Billy Krassakopoulos
Signature date: 17 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WYFI transaction

Ordinary Shares, $.01 par value

Options Exercise

Transaction value
Shares: +15,624
Change %: +132%
Price
Shares after: 27,427
Date: 16 Mar 2026
Ownership: Direct
Footnotes: F1, F2

WYFI transaction

Ordinary Shares, $.01 par value

Options Exercise

Transaction value
Shares: +327
Change %: +2.8%
Price
Shares after: 11,803
Date: 13 Jan 2026
Ownership: Direct
Footnotes: F3, F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WYFI transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +15,624
Change %
Price: $0.000000^*
Shares after: 15,624
Date: 16 Mar 2026
Ownership: Direct
Underlying class: Ordinary Shares, $.01 par value
Underlying amount: 15,624
Exercise price: $0.0100
Footnotes: F5, F6

WYFI transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +327
Change %
Price: $0.000000^*
Shares after: 327
Date: 13 Jan 2026
Ownership: Direct
Underlying class: Ordinary Shares, $.01 par value
Underlying amount: 327
Exercise price: $0.0100
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Represents Ordinary Shares issued upon the immediate vesting of restricted stock units ("RSUs") awarded under the Company's 2025 Omnibus Equity Incentive Plan (the "Plan").

Footnote F2

These shares were valued at $15.80 the closing market price on December 31, 2025, the Measurement Date under the RSU.

Footnote F3

Represents 327 Ordinary Shares issued on January 13, 2026, as a result of an administrative error related to the October 31, 2025 issuance. The RSUs were issued in exchange for Bit Digital, Inc. RSUs previously granted to Mr. Krassakopoulos by Bit Digital, Inc. prior to the IPO of WhiteFiber, Inc.

Footnote F4

These shares were valued at $18.43 the closing market price on January 13, 2026. This does not represent a discretionary transaction by a reporting person.

Footnote F5

Thee RSUs are Performance Vesting RSUs under an RSU Award Agreement dated August 7, 2025 based on Growth EBITDA as of December 31, 2025.

Footnote F6

The performance RSUs were vested on March 16, 2026, the date when vesting was determined by the Company.