Cipher Mining Inc. CIFR NASDAQ

NASDAQ Global Select • Financial Services • Financial - Capital Markets • US • USD

SharesGrow Score

46/100

2/7 Pass

SharesGrow Intrinsic Value

Cipher Mining Inc. (CIFR) has 20 known insider and institutional holders on record. The largest holder is Bitfury Group Ltd with 201,931,387 shares. Other notable holders include Bitfury Top HoldCo B.V. and V3 Holding Ltd.

Over the last 12 months, insiders have made 55 transactions in CIFR stock — 17 buys (valued at RSU Award) and 18 sells (valued at $25.92M). Insider selling has exceeded buying during this period.

CIFR Insider Ownership

Top Holder

Bitfury Group Ltd

201,931,387 shares

Buys (12 mo)

$0.00 value

Sells (12 mo)

$25.92M value

12-Month Transaction Activity

Buy 31%

Sell 33%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Bitfury Group Ltd	Director	201,931,387	2022-06-16	100%
2	Bitfury Top Holdco B.v.	10 Percent Owner	97,567,437	2024-12-19	48%
3	V3 Holding Ltd	10 Percent Owner	5,520,000	2025-11-18	3%
4	Glazer Capital, Llc	10 Percent Owner	1,806,406	2021-03-09	1%
5	Page Tyler	Chief Executive Officer	1,783,288	2026-04-02	1%
6	Farrell Edward J	Chief Financial Officer	1,356,568	2025-06-17	1%
7	Dykes Robert R B	Director	916,412	2024-09-11	0%
8	Mumford Gregory J.d.	Chief Financial Officer	580,306	2026-02-27	0%
9	Kelly Patrick Arthur	Co-president and COO	534,986	2026-04-02	0%
10	Iwaschuk William	Co-president and CLO	534,986	2026-04-02	0%
11	Long Caitlin	Director	226,781	2025-06-06	0%
12	Evans Holly Morrow	Director	195,512	2025-11-28	0%
13	Zeidman Fred S	CEO	195,000	2021-04-19	0%
14	Grossman Cary M	Director	170,530	2026-03-25	0%
15	Williams Wesley Hastie	Director	158,145	2025-12-23	0%
16	Flatley Robert	Director	138,872	2025-06-06	0%
17	Newsome James E	Director	127,331	2026-03-06	0%
18	Wurth Douglas Clark	Director	125,000	2021-04-19	0%
19	Pauker David I	Director	47,500	2021-04-19	0%
20	Rehmatullah Tahira	Director	47,500	2021-04-19	0%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-03-31	Iwaschuk William	Co-president and CLO	Option Exercise (Sell)	76,427	-	-
2026-03-31	Page Tyler	Chief Executive Officer	Option Exercise (Sell)	254,756	-	-
2026-03-31	Kelly Patrick Arthur	Co-president and COO	Option Exercise (Sell)	76,427	-	-
2026-03-25	Page Tyler	Chief Executive Officer	Informative Sell	37,500	$16.11	$604.13K
2026-03-23	Kelly Patrick Arthur	Co-president and COO	Gift (Given)	21,700	-	-
2026-03-23	Grossman Cary M	Director	Informative Sell	30,000	$14.54	$436.2K
2026-03-16	Kelly Patrick Arthur	Co-president and COO	Informative Sell	35,568	$14.98	$532.81K
2026-03-04	Newsome James E	Director	Informative Sell	45,161	$15.74	$710.83K
2026-02-25	Duda Thomas David	Director	RSU Award	3,862	-	-
2026-02-25	Mumford Gregory J.d.	Chief Financial Officer	RSU Award	205,306	-	-
2026-02-25	Iwaschuk William	Co-president and CLO	RSU Award	355,338	-	-
2026-02-25	Page Tyler	Chief Executive Officer	RSU Award	1,263,424	-	-
2026-02-25	Kelly Patrick Arthur	Co-president and COO	RSU Award	355,338	-	-
2026-02-11	Duda Thomas David	Director	Unknown	-	-	-
2026-02-17	Kelly Patrick Arthur	Co-president and COO	Informative Sell	35,568	$15.52	$552.02K
2026-01-15	Kelly Patrick Arthur	Co-president and COO	Informative Sell	35,568	$17.76	$631.69K
2025-12-19	Iwaschuk William	Co-president and CLO	Option Exercise (Sell)	305,707	-	-
2025-12-19	Page Tyler	Chief Executive Officer	Option Exercise (Sell)	1,019,022	-	-
2025-12-19	Kelly Patrick Arthur	Co-president and COO	Option Exercise (Sell)	305,707	-	-
2025-12-19	Williams Wesley Hastie	Director	Informative Sell	49,867	$16.08	$801.86K
2025-12-19	Newsome James E	Director	Informative Sell	21,821	$16.03	$349.79K
2025-12-15	Iwaschuk William	Co-president and CLO	Option Exercise (Sell)	33,968	-	-
2025-12-15	Page Tyler	Chief Executive Officer	Option Exercise (Sell)	113,225	-	-
2025-12-15	Kelly Patrick Arthur	Co-president and COO	Option Exercise (Sell)	33,968	-	-
2025-11-26	Evans Holly Morrow	Director	Informative Sell	15,000	$18.74	$281.1K