WHITEFIBER INC (WYFI) — insider trading
Information Technology · NASDAQ
WHITEFIBER INC (WYFI) has 29 reported SEC Form 4 insider transactions in our data, including 1 open-market sale among the most recent 29 (latest 2026-08-03).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-03 | Shih Ichi | Director | Grant / award / vesting | 4,657 | — | — | Form 4 |
| 2026-08-01 | Zhu Justin | Officer (Chief Financial Officer) | Grant / award / vesting | 4,219 | — | — | Form 4 |
| 2026-07-24 | Huang Erke | Director, Officer (Chief Financial Officer) | Grant / award / vesting (derivative) | 7,079 | — | $0 | Form 4 |
| 2026-07-24 | Huang Erke | Director, Officer (Chief Financial Officer) | Option exercise / conversion | 7,079 | — | — | Form 4 |
| 2026-07-24 | Tabar Samir | Officer (Chief Executive Officer) | Grant / award / vesting (derivative) | 7,079 | — | $0 | Form 4 |
| 2026-07-24 | Tabar Samir | Officer (Chief Executive Officer) | Option exercise / conversion | 7,079 | — | — | Form 4 |
| 2026-05-29 | Shih Ichi | Director | Open-market sale | 7,059 | $30.12 | $212.6K | Form 4 |
| 2026-05-07 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Shares withheld for taxes / exercise cost | 955 | $21.00 | $20.1K | Form 4 |
| 2026-04-28 | Krassakopoulos Billy | Officer (President) | Shares withheld for taxes / exercise cost | 8,490 | — | — | Form 4 |
| 2026-03-31 | Huang Erke | Director, Officer (Chief Financial Officer) | Grant / award / vesting (derivative) | 41,982 | — | $0 | Form 4 |
| 2026-03-31 | Huang Erke | Director, Officer (Chief Financial Officer) | Option exercise / conversion | 41,982 | — | — | Form 4 |
| 2026-03-31 | Tabar Samir | Officer (Chief Executive Officer) | Grant / award / vesting (derivative) | 41,982 | — | $0 | Form 4 |
| 2026-03-31 | Tabar Samir | Officer (Chief Executive Officer) | Option exercise / conversion | 41,982 | — | — | Form 4 |
| 2026-03-19 | Tabar Samir | Officer (Chief Executive Officer) | Grant / award / vesting (derivative) | 33,047 | — | $0 | Form 4 |
| 2026-03-19 | Tabar Samir | Officer (Chief Executive Officer) | Option exercise / conversion | 33,047 | — | — | Form 4 |
| 2026-03-19 | Huang Erke | Director, Officer (Chief Financial Officer) | Grant / award / vesting (derivative) | 66,094 | — | $0 | Form 4 |
| 2026-03-19 | Huang Erke | Director, Officer (Chief Financial Officer) | Option exercise / conversion | 66,094 | — | — | Form 4 |
| 2026-03-16 | Krassakopoulos Billy | Officer (President) | Grant / award / vesting (derivative) | 15,624 | — | $0 | Form 4 |
| 2026-03-16 | Krassakopoulos Billy | Officer (President) | Option exercise / conversion | 15,624 | — | — | Form 4 |
| 2026-02-10 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Shares withheld for taxes / exercise cost | 1,500 | $19.31 | $29.0K | Form 4 |
| 2026-02-04 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Option exercise / conversion | 4 | — | — | Form 4/A |
| 2026-01-13 | Krassakopoulos Billy | Officer (President) | Grant / award / vesting (derivative) | 327 | — | $0 | Form 4 |
| 2026-01-13 | Krassakopoulos Billy | Officer (President) | Option exercise / conversion | 327 | — | — | Form 4 |
| 2025-10-31 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Grant / award / vesting (derivative) | 76,977 | — | $0 | Form 5/A |
| 2025-10-31 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Option exercise / conversion | 24,033 | $29.85 | $717.4K | Form 5/A |
| 2025-10-31 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Shares withheld for taxes / exercise cost | 13,082 | $18.52 | $242.3K | Form 5/A |
| 2025-10-31 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Grant / award / vesting (derivative) | 76,977 | — | $0 | Form 5 |
| 2025-10-31 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Shares withheld for taxes / exercise cost | 8,226 | $29.46 | $242.3K | Form 5 |
| 2025-10-31 | Sanfilippo Thomas | Officer (Chief Technology Officer) | Option exercise / conversion | 24,033 | $29.85 | $717.4K | Form 5 |
Ask the chat about WYFI's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: WHITEFIBER INC (WYFI).
Last updated 2026-08-03 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.