Billy Krassakopoulos

Billy Krassakopoulos: President at WhiteFiber. What Billy Krassakopoulos holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

WhiteFiber (WYFI)

Billy Krassakopoulos holds 18,937 WhiteFiber shares (0.05% of the company), worth about $282,918.78 at the last price, according to the Form 4 of Apr 28, 2026.

• Shares held: 18,937 (0.05%), $282,918.78 — Held in their own name.
• Share units: 327 (0.00%), $4,885.38 — WhiteFiber promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.

Declarations

• WhiteFiber (WYFI) — Form 4 of Apr 28, 2026 (President): shares withheld for tax of 8,490; 18,937 shares after 0001213900-26-048887
• WhiteFiber (WYFI) — Form 4 of Mar 16, 2026 (President): option exercise or conversion of 15,624; option exercise or conversion of 327; 11,803 shares after 0001213900-26-029127
• WhiteFiber (WYFI) — Form 4 of Nov 17, 2025 (President): option exercise or conversion of 2,653; 11,476 shares after 0001213900-25-112766
• WhiteFiber (WYFI) — Form 4 of Aug 8, 2025 (President): grant or award of 8,823 at $17.00; 8,823 shares after 0001213900-25-073374
• WhiteFiber (WYFI) — Form 3 of Aug 6, 2025 (President); 0 shares after 0001213900-25-072654

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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