Updated Jul 16, 2026
Iwaschuk William has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $4K.

William Iwaschuk is the Co-President and Chief Legal Officer (CLO) of Cipher Mining Inc., a company focused on Bitcoin mining in the United States. He has been involved in the company's operations as it develops its cryptocurrency mining business.
| Role | Co-President and CLO |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-02 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 42.3K | $24.50 | $1.04M |
| 2026-07-02 | CIFR | Cipher Digital Inc. | M — Option exercise | 76.4K | — | |
| 2026-07-02 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 16.4K | $24.50 | $401K |
| 2026-07-02 | CIFR | Cipher Digital Inc. | M — Option exercise | 29.6K | — | |
| 2026-07-02 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 18.8K | $24.50 | $460K |
| 2026-07-02 | CIFR | Cipher Digital Inc. | M — Option exercise | 34.0K | — | |
| 2026-06-16 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 92.2K | $26.03 | $2.40M |
| 2026-06-16 | CIFR | Cipher Digital Inc. | M — Option exercise | 166.7K | — | |
| 2026-04-03 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 40.1K | $12.87 | $517K |
| 2026-04-03 | CIFR | Cipher Digital Inc. | M — Option exercise | 76.4K | — | |
| 2026-04-03 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 11.9K | $12.87 | $154K |
| 2026-04-03 | CIFR | Cipher Digital Inc. | M — Option exercise | 29.6K | — | |
| 2026-04-03 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 13.8K | $12.87 | $178K |
| 2026-04-03 | CIFR | Cipher Digital Inc. | M — Option exercise | 34.0K | — | |
| 2025-09-30 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 18.8K | $12.59 | $237K |
| 2025-09-30 | CIFR | Cipher Digital Inc. | M — Option exercise | 34.0K | — | |
| 2025-09-30 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 202.8K | $12.59 | $2.55M |
| 2025-09-30 | CIFR | Cipher Digital Inc. | M — Option exercise | 366.7K | — | |
| 2025-06-30 | CIFR | Cipher Digital Inc. | F — Tax withholding / forfeiture | 18.8K | $4.78 | $90K |
| 2025-06-30 | CIFR | Cipher Digital Inc. | M — Option exercise | 34.0K | — |
William Iwaschuk is the Co-President and Chief Legal Officer (CLO) of Cipher Mining Inc., a company focused on Bitcoin mining in the United States. He has been involved in the company's operations as it develops its cryptocurrency mining business.…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 1 open-market sales ($4K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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