Justin Zhu
CIK: 0002082678
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (14 total)
- Oct 15, 2026WYFI
WhiteFiber, Inc.
Tax Payment(F)Direct14.1K shares at avg. $12.20$172K - Oct 14, 2026WYFI
WhiteFiber, Inc.
Award(A)Direct26.4K shares- - Aug 27, 2026WYFI
WhiteFiber, Inc.
Tax Payment(F)Direct2.1K shares at avg. $20.39$42K - Aug 1, 2026WYFI
WhiteFiber, Inc.
Award(A)Direct4.2K shares- - Apr 2, 2026BTBT
Bit Digital, Inc
Tax Payment(F)Direct40.2K shares- - Mar 25, 2026BTBT
Bit Digital, Inc
Exercise(M)Direct94.3K shares- - Mar 25, 2026BTBT
Bit Digital, Inc
Award(A)DirectRestricted Stock Units
94.3K shares- - Mar 19, 2026BTBT
Bit Digital, Inc
Tax Payment(F)Direct1.8K shares- - Mar 16, 2026BTBT
Bit Digital, Inc
Exercise(M)Direct3.1K shares- - Dec 29, 2025BTBT
Bit Digital, Inc
Tax Payment(F)Direct1.2K shares- - Sep 24, 2025BTBT
Bit Digital, Inc
Tax Payment(F)Direct1K shares at avg. $3.21$3K - Aug 21, 2025BTBT
Bit Digital, Inc
Tax Payment(F)Direct20.1K shares at avg. $2.71$54K - Jul 25, 2025BTBT
Bit Digital, Inc
Exercise(M)Direct47.6K shares- - Jul 25, 2025BTBT
Bit Digital, Inc
Award(A)DirectRestricted Stock Units
47.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 15, 2026 |  WYFI WhiteFiber, Inc. | Tax Payment(F) | 14,080 | $12.20 | $171,776 | Direct |
| Oct 14, 2026 | WYFI WhiteFiber, Inc. | Award(A) | 26,374 | - | $0 | Direct |
| Aug 27, 2026 | WYFI WhiteFiber, Inc. | Tax Payment(F) | 2,060 | $20.39 | $42,003 | Direct |
| Aug 1, 2026 | WYFI WhiteFiber, Inc. | Award(A) | 4,219 | - | $0 | Direct |
| Apr 2, 2026 |  BTBT Bit Digital, Inc | Tax Payment(F) | 40,165 | - | $0 | Direct |
| Mar 25, 2026 | BTBT Bit Digital, Inc | Exercise(M) | 94,340 | - | $0 | Direct |
| Mar 25, 2026 | BTBT Bit Digital, Inc | Award(A) Restricted Stock Units | 94,340 | - | - | Direct |
| Mar 19, 2026 | BTBT Bit Digital, Inc | Tax Payment(F) | 1,775 | - | $0 | Direct |
| Mar 16, 2026 | BTBT Bit Digital, Inc | Exercise(M) | 3,125 | - | $0 | Direct |
| Dec 29, 2025 | BTBT Bit Digital, Inc | Tax Payment(F) | 1,165 | - | - | Direct |
| Sep 24, 2025 | BTBT Bit Digital, Inc | Tax Payment(F) | 1,038 | $3.21 | $3,335 | Direct |
| Aug 21, 2025 | BTBT Bit Digital, Inc | Tax Payment(F) | 20,077 | $2.71 | $54,489 | Direct |
| Jul 25, 2025 | BTBT Bit Digital, Inc | Exercise(M) | 47,619 | - | - | Direct |
| Jul 25, 2025 | BTBT Bit Digital, Inc | Award(A) Restricted Stock Units | 47,619 | - | - | Direct |
1-14 of 14 transactions
About Zhu Justin
Zhu Justin (SEC CIK 0002082678) files insider reports with the SEC as Chief Financial Officer of WhiteFiber, Inc. (WYFI) and VP of Finance & CAO of Bit Digital, Inc (BTBT).
Signal8 holds 10 ownership filings by Zhu Justin (2 Form 3, 8 Form 4), filed between Aug 20, 2025 and Oct 16, 2026. Those filings report 14 transactions, from Jul 25, 2025 to Oct 15, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Zhu Justin's filings is in NEW YORK, NY.
Recent filings by Zhu Justin
- Oct 15, 2026: Tax withholding of WYFI shares (Form 4, code F).
- Oct 14, 2026: Grant or award of WYFI shares (Form 4, code A).
- Aug 27, 2026: Tax withholding of WYFI shares (Form 4, code F).
- Aug 1, 2026: Grant or award of WYFI shares (Form 4, code A).
- Apr 2, 2026: Tax withholding of BTBT shares (Form 4, code F).
Other insiders filing for WhiteFiber, Inc. (WYFI)
- Sanfilippo Thomas, Chief Technology Officer
- Tabar Samir, Chief Executive Officer
- Shih Ichi, Director
- Rulf Michael, Director
- Huang Erke, Chief Financial Officer
- Krassakopoulos Billy, President