Krassakopoulos Billy 4

What Happened
Billy Krassakopoulos, President of WhiteFiber, had 8,490 ordinary shares disposed on April 28, 2026 to satisfy tax-withholding obligations related to RSUs that vested March 16, 2026. The shares were sold at an average market price of $15.48 per share for total gross proceeds of approximately $131,425. This transaction is a tax-withholding sale (code F), not an open-market discretionary sale by the reporting person.

Key Details

• Transaction date: April 28, 2026; Form 4 filed April 29, 2026 (timely filing).
• Shares sold/used for tax withholding: 8,490 at an average price of $15.48.
• Approximate total value: $131,425.20.
• Shares owned after transaction: not disclosed in this Form 4.
• Footnotes: F1 clarifies the shares were sold by the issuer solely to satisfy withholding from RSU vesting and do not represent a sale initiated by the reporting person; F2 confirms the $15.48 average sale price and that it was not a discretionary transaction.
• Transaction code meaning: F = tax withholding/cashless share surrender to cover taxes.

Context
This was a routine tax-withholding transaction following RSU vesting, commonly handled by the company selling a portion of vested shares to cover payroll taxes. Such transactions typically do not signal management’s market view; they are administrative in nature rather than voluntary stock sales.