Bitfury Group Ltd — SEC Form 4 filings
SEC reporting owner CIK 1887872. 44 Form 4 filings on record with FilingPulse; latest filed 2026-06-08.
Transaction summary — filings shown
Covers all 44 filings on record, filed 2024-01-26 to 2026-06-08. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 112 legs across 38 filings — 60,497,885 shares, $573,076,119 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 8.
- Largest priced transaction: sale of 1,490,098 shares @ $21.20 ($31,590,078) in Cipher Digital Inc., filed 2025-10-16.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Cipher Digital Inc. (CIFR) | 10% owner | 44 | — | 112 legs · 60,497,885 sh · $573,076,119 | 8 |
Form 4 filings — Bitfury Group Ltd
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-08 | 4 | Cipher Digital Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 977,578 @ $25.35 · Sale (S): 222,422 @ $26.10 | EDGAR |
| 2026-06-04 | 4 | Cipher Digital Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 1,146,445 @ $26.28 · Sale (S): 624,715 @ $27.17 · Sale (S): 28,840 @ $28.10 · Other (J): 2,000,000 (derivative) | EDGAR |
| 2026-05-18 | 4 | Cipher Digital Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Other (J): 2,812,863 (derivative) · Other (J): 4,433,735 (derivative) | EDGAR |
| 2026-05-13 | 4 | Cipher Digital Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Other (J): 5,675,984 (derivative) | EDGAR |
| 2025-11-18 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Other (J): 5,520,000 (derivative) | EDGAR |
| 2025-11-05 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Other (J): 5,415,000 (derivative) | EDGAR |
| 2025-10-16 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 1,307,887 @ $20.63 · Sale (S): 524,429 @ $21.16 · Sale (S): 513,259 @ $20.42 · Sale (S): 1,490,098 @ $21.20 · Sale (S): 164,327 @ $21.83 · Sale (S): 516,058 @ $20.29 · +1 more | EDGAR |
| 2025-09-30 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 1,399,268 @ $11.53 · Sale (S): 185,914 @ $12.20 · Sale (S): 1,811,580 @ $12.03 · Sale (S): 188,420 @ $12.52 · Sale (S): 2,000,000 @ $12.39 | EDGAR |
| 2025-09-25 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 899,100 @ $14.01 · Sale (S): 900 @ $14.71 · Sale (S): 832,691 @ $14.35 · Sale (S): 67,309 @ $15.11 · Sale (S): 1,679,532 @ $11.87 · Sale (S): 1,777,894 @ $12.80 · +1 more | EDGAR |
| 2025-09-22 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 900,000 @ $11.79 · Sale (S): 849,199 @ $12.35 · Sale (S): 50,801 @ $12.75 · Sale (S): 697,769 @ $12.59 · Sale (S): 192,269 @ $13.71 · Sale (S): 9,962 @ $14.15 | EDGAR |
| 2025-09-17 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 900,000 @ $10.80 · Sale (S): 725,707 @ $11.13 · Sale (S): 174,293 @ $11.54 · Sale (S): 780,897 @ $11.68 · Sale (S): 119,103 @ $12.37 | EDGAR |
| 2025-09-12 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 860,720 @ $9.97 · Sale (S): 39,280 @ $10.27 · Sale (S): 900,000 @ $10.26 · Sale (S): 878,847 @ $10.59 · Sale (S): 21,153 @ $10.90 | EDGAR |
| 2025-09-10 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 600,000 @ $7.48 · Sale (S): 419,837 @ $8.34 · Sale (S): 180,163 @ $9.16 | EDGAR |
| 2025-09-08 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 700,000 @ $7.60 · Sale (S): 600,000 @ $7.38 | EDGAR |
| 2025-09-04 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 600,000 @ $8.13 · Sale (S): 600,000 @ $8.30 | EDGAR |
| 2025-09-02 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 600,000 @ $7.11 · Sale (S): 590,804 @ $7.42 · Sale (S): 9,196 @ $8.05 | EDGAR |
| 2025-08-28 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 700,000 @ $6.81 · Sale (S): 500,000 @ $7.07 | EDGAR |
| 2025-07-31 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 66,049 @ $6.06 · Sale (S): 369,984 @ $5.61 | EDGAR |
| 2025-07-29 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 500,000 @ $6.45 · Sale (S): 500,000 @ $6.19 | EDGAR |
| 2025-07-25 | 4 | Cipher Mining Inc. (CIFR) jointly with V3 Holding Ltd, Bitfury Top HoldCo B.V., Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 500,000 @ $6.55 · Sale (S): 500,000 @ $6.68 | EDGAR |
| 2025-07-16 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 667,010 @ $6.11 · Sale (S): 289,145 @ $6.06 | EDGAR |
| 2025-07-14 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 600,000 @ $6.27 · Sale (S): 432,990 @ $6.13 | EDGAR |
| 2025-07-10 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 600,000 @ $6.08 · Sale (S): 600,000 @ $6.17 | EDGAR |
| 2025-07-03 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 500,000 @ $4.86 · Sale (S): 500,000 @ $5.28 | EDGAR |
| 2024-12-19 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 3,120 @ $7.55 | EDGAR |
| 2024-12-18 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 300,000 @ $7.23 · Sale (S): 250,000 @ $7.42 | EDGAR |
| 2024-12-09 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijs | Sale (S): 91,982 @ $7.23 · Sale (S): 177,031 @ $7.38 | EDGAR |
| 2024-12-03 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 277,618 @ $7.17 | EDGAR |
| 2024-11-22 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 6,900 @ $7 · Sale (S): 73,500 @ $7.02 | EDGAR |
| 2024-11-12 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 300,000 @ $6.60 | EDGAR |
| 2024-10-29 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 1,000,000 @ $6.22 | EDGAR |
| 2024-09-10 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 1,421,663 @ $2.74 · Sale (S): 479,449 @ $2.75 · Sale (S): 1,421,663 @ $2.87 · Sale (S): 479,449 @ $2.87 · Sale (S): 1,421,663 @ $2.97 · Sale (S): 575,641 @ $2.96 | EDGAR |
| 2024-09-06 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 1,421,663 @ $3.03 · Sale (S): 479,449 @ $3.01 · Sale (S): 1,421,663 @ $2.92 · Sale (S): 479,449 @ $2.93 | EDGAR |
| 2024-07-22 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 592,980 @ $6.21 · Sale (S): 16,664 @ $7.01 · Sale (S): 261,847 @ $6.17 | EDGAR |
| 2024-07-01 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 478,606 @ $4.17 · Sale (S): 490,275 @ $4.12 | EDGAR |
| 2024-06-26 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 443,830 @ $4.33 · Sale (S): 454,073 @ $4.26 · Sale (S): 466,915 @ $4.30 | EDGAR |
| 2024-06-21 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 388,167 @ $4.80 · Sale (S): 394,357 @ $5.54 · Sale (S): 416,793 @ $4.51 | EDGAR |
| 2024-06-17 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 349,519 @ $4.95 · Sale (S): 366,042 @ $5 · Sale (S): 376,320 @ $4.82 | EDGAR |
| 2024-06-12 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 319,747 @ $4.21 · Sale (S): 308,506 @ $4.07 · Sale (S): 336,377 @ $4.58 | EDGAR |
| 2024-06-06 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 302,841 @ $3.77 · Sale (S): 299,953 @ $3.91 · Sale (S): 298,950 @ $4.16 | EDGAR |
| 2024-06-03 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 298,778 @ $3.73 · Sale (S): 303,006 @ $3.69 · Sale (S): 308,973 @ $3.72 | EDGAR |
| 2024-05-29 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Sale (S): 294,811 @ $4.08 · Sale (S): 296,357 @ $3.99 · Sale (S): 300,552 @ $3.85 | EDGAR |
| 2024-02-27 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Other (J): 107,304,200 @ $0 | EDGAR |
| 2024-01-26 | 4 | Cipher Mining Inc. (CIFR) jointly with Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Vavilovs Valerijis | Other (J): 16,127,092 @ $2.28 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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