Cipher Mining Inc. (CIFR) Insider Ownership

Historic Insider Ownership Trends

Cipher Digital's top three insider shareholders as of April 22, 2026 are Top Holdco B.V. Bitfury (TenPercentOwner, 93.38Mn shares), Top Holdco B.V. Bitfury (TenPercentOwner, 93.38Mn shares), Holding Ltd V3 (TenPercentOwner, 61.32Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Top Holdco B.V. Bitfury - 0 93,378,292 16 Jul, 2025
Top Holdco B.V. Bitfury - 0 93,378,292 16 Jul, 2025
Holding Ltd V3 - 0 61,316,694 16 Oct, 2025
Holding Ltd V3 - 0 61,316,694 16 Oct, 2025
Tyler Page Chief Executive Officer 8,507,180 0 02 Apr, 2026
Tyler Page Chief Executive Officer 8,507,180 0 02 Apr, 2026
Patrick Arthur Kelly Co President And Coo 1,499,856 0 02 Apr, 2026
Patrick Arthur Kelly Co President And Coo 1,499,856 0 02 Apr, 2026
Edward J Farrell Chief Financial Officer 1,482,622 0 02 Oct, 2025
Edward J Farrell Chief Financial Officer 1,482,622 0 02 Oct, 2025
William Iwaschuk Co President And Clo 1,464,610 0 02 Apr, 2026
William Iwaschuk Co President And Clo 1,464,610 0 02 Apr, 2026
Robert R B Dykes - 1,103,745 0 11 Sep, 2024
Robert R B Dykes - 1,103,745 0 11 Sep, 2024
Caitlin Long - 226,781 0 06 Jun, 2025
Caitlin Long - 226,781 0 06 Jun, 2025
Holly Morrow Evans - 195,512 0 28 Nov, 2025
Holly Morrow Evans - 195,512 0 28 Nov, 2025
Cary M Grossman President And Cfo 170,530 0 24 Mar, 2026
Cary M Grossman President And Cfo 170,530 0 24 Mar, 2026
Wesley Hastie Williams - 158,145 0 23 Dec, 2025
Wesley Hastie Williams - 158,145 0 23 Dec, 2025
Robert Flatley - 138,872 0 06 Jun, 2025
Robert Flatley - 138,872 0 06 Jun, 2025
James E Newsome - 127,331 0 06 Mar, 2026
James E Newsome - 127,331 0 06 Mar, 2026
Thomas David Duda - 17,680 0 27 Feb, 2026
Thomas David Duda - 17,680 0 27 Feb, 2026
Gregory J.D. Mumford Chief Financial Officer 9,994 0 07 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
31 Mar, 2026 Gregory J.D. Mumford Common Stock A 17,108 - 17,108 D M
31 Mar, 2026 Gregory J.D. Mumford Common Stock D 7,114 $12.87 9,994 D F
31 Mar, 2026 Gregory J.D. Mumford Restricted Stock Units D 17,108 $0.00 563,198 D M
31 Mar, 2026 William Iwaschuk Common Stock A 33,968 - 1,424,477 D M
31 Mar, 2026 Tyler Page Common Stock A 113,225 - 8,377,087 D M
31 Mar, 2026 Patrick Arthur Kelly Common Stock A 33,968 - 1,453,776 D M
31 Mar, 2026 Tyler Page Common Stock D 46,147 $12.87 8,330,940 D F
31 Mar, 2026 William Iwaschuk Common Stock D 13,825 $12.87 1,410,652 D F
31 Mar, 2026 Patrick Arthur Kelly Common Stock D 12,386 $12.87 1,441,390 D F
31 Mar, 2026 Patrick Arthur Kelly Common Stock A 29,611 - 1,471,001 D M
31 Mar, 2026 Tyler Page Common Stock A 105,285 - 8,436,225 D M
31 Mar, 2026 William Iwaschuk Common Stock A 29,611 - 1,440,263 D M
31 Mar, 2026 Patrick Arthur Kelly Common Stock D 10,674 $12.87 1,460,327 D F
31 Mar, 2026 Tyler Page Common Stock D 53,748 $12.87 8,382,477 D F
31 Mar, 2026 William Iwaschuk Common Stock D 11,934 $12.87 1,428,329 D F
31 Mar, 2026 William Iwaschuk Common Stock A 76,427 - 1,504,756 D M
31 Mar, 2026 Patrick Arthur Kelly Common Stock A 76,427 - 1,536,754 D M
31 Mar, 2026 Tyler Page Common Stock A 254,756 - 8,637,233 D M
31 Mar, 2026 Patrick Arthur Kelly Common Stock D 36,898 $12.87 1,499,856 D F
31 Mar, 2026 William Iwaschuk Common Stock D 40,146 $12.87 1,464,610 D F