# Cipher Digital — Capital Time Machine

Cipher began as a Bitfury-backed mining business and entered the public market through Good Works Acquisition Corp. Its closing financing is documented; a conventional Series A–F ladder is not.

Canonical citation: https://capitaltimemachine.com/private/cipher-digital

Ticker: CIFR
Sector: Digital infrastructure
Public-market route: SPAC merger
Evidence reviewed: 2026-09-24

## How to use this research

Selected historical funding and listing evidence, not a complete private cap table or live quote. Funding totals, company valuations and per-share prices are different measures. A hypothetical value is not actual sale proceeds; investor access is not established.

## Funding and listing history

### formation — Bitfury formation and founder subscription

Date: 2021-01-07
Event type: Formation

500 original shares were subscribed for $5, later corresponding to 200 million merger shares. This nominal formation transaction is excluded from return calculations.

Source: [2021 Form 10-K](https://www.sec.gov/Archives/edgar/data/1819989/000095017022002861/cifr-20211231.htm)
Source location: Notes 1, 3 and related-party transactions: formation, merger, PIPE, Bitfury placement and subscription receivable.

### announcement — Proposed merger financing

Date: 2021-03-05
Event type: Announced financing

The initial proposal described $375 million of PIPE investment and $50 million from Bitfury. These are proposed terms, not the final closing amounts.

Reported capital or financing: $425 million proposed

Source: [2021 Form S-4](https://www.sec.gov/Archives/edgar/data/1819989/000119312521161188/d127963ds4.htm)
Source location: Original proposed transaction financing; compare with the later closing figures.

### pipe — PIPE financing closes

Date: 2021-08-27
Event type: Private placement at listing

32,235,000 common shares at $10 each; $322.35 million by share count, rounded to $322.4 million in the filing.

Reported capital or financing: $322.35 million gross

Reported price: $10 per common share

Source: [2021 Form 10-K](https://www.sec.gov/Archives/edgar/data/1819989/000095017022002861/cifr-20211231.htm)
Source location: Notes 1, 3 and related-party transactions: formation, merger, PIPE, Bitfury placement and subscription receivable.

### bitfury — Bitfury private placement

Date: 2021-08-27
Event type: Private placement at listing

6 million common shares at $10 each. Consideration included cash and/or forgiveness of indebtedness; this is not all incremental cash.

Reported capital or financing: $60 million consideration

Reported price: $10 per common share

Source: [2021 Form 10-K](https://www.sec.gov/Archives/edgar/data/1819989/000095017022002861/cifr-20211231.htm)
Source location: Notes 1, 3 and related-party transactions: formation, merger, PIPE, Bitfury placement and subscription receivable.

### merger — Good Works combination completes

Date: 2021-08-27
Event type: SPAC closing

Legacy ownership received 200 million shares at a deemed $10 merger value. The PIPE and Bitfury placement total $382.35 million of consideration, distinct from the original $425 million proposal.

Source: [2021 Form 10-K](https://www.sec.gov/Archives/edgar/data/1819989/000095017022002861/cifr-20211231.htm)
Source location: Notes 1, 3 and related-party transactions: formation, merger, PIPE, Bitfury placement and subscription receivable.

### trading — CIFR begins Nasdaq trading

Date: 2021-08-30
Event type: Public listing

CIFR and CIFRW began trading after the business combination. This was a SPAC listing, not a conventional underwritten IPO.

Source: [2021 resale prospectus](https://www.sec.gov/Archives/edgar/data/1819989/000119312521333260/d262832d424b3.htm)
Source location: Business combination and market information: Nasdaq trading began August 30, 2021.

### rename — Cipher Digital name adopted

Date: 2026-02-20
Event type: Post-listing identity

The corporate name changed from Cipher Mining to Cipher Digital. The earlier financing history belongs to the same issuer.

Source: [February 2026 Form 8-K](https://www.sec.gov/Archives/edgar/data/1819989/000181998926000007/cifr-20260220.htm)
Source location: Amendment changing Cipher Mining Inc. to Cipher Digital Inc.

## Documented share calculations

### pipe — 2021 PIPE — $10

Starting price: 10 USD per starting share
Starting date or context: Closing · Aug 27, 2021

Base conversion: 1 common-share equivalents per starting share, before dated public splits

One common share per subscribed share. Later splits and corporate actions are not reviewed; the ending-price scenario requires your assumption that this share basis remains comparable.

Public trading begins: 2021-08-30
Supported ending dates begin: 2021-08-30
Share basis reviewed through: 2021-08-30

The ending share price and its date must be supplied by the user.

Formula: amount ÷ 10 × (1) × applicable dated public splits × ending share price. 

Source: [2021 Form 10-K](https://www.sec.gov/Archives/edgar/data/1819989/000095017022002861/cifr-20211231.htm)
Source location: Notes 1, 3 and related-party transactions: formation, merger, PIPE, Bitfury placement and subscription receivable.

Source: [2021 resale prospectus](https://www.sec.gov/Archives/edgar/data/1819989/000119312521333260/d262832d424b3.htm)
Source location: Business combination and market information: Nasdaq trading began August 30, 2021.

### bitfury — Bitfury placement — $10

Starting price: 10 USD per starting share
Starting date or context: Closing · Aug 27, 2021

Base conversion: 1 common-share equivalents per starting share, before dated public splits

One common share per subscribed share. Later splits and corporate actions are not reviewed; the ending-price scenario requires your assumption that this share basis remains comparable.

Public trading begins: 2021-08-30
Supported ending dates begin: 2021-08-30
Share basis reviewed through: 2021-08-30

The ending share price and its date must be supplied by the user.

Formula: amount ÷ 10 × (1) × applicable dated public splits × ending share price. 

Source: [2021 Form 10-K](https://www.sec.gov/Archives/edgar/data/1819989/000095017022002861/cifr-20211231.htm)
Source location: Notes 1, 3 and related-party transactions: formation, merger, PIPE, Bitfury placement and subscription receivable.

Source: [2021 resale prospectus](https://www.sec.gov/Archives/edgar/data/1819989/000119312521333260/d262832d424b3.htm)
Source location: Business combination and market information: Nasdaq trading began August 30, 2021.

## Later share adjustments

No separate share-class distribution is modeled.

## Coverage gaps and limitations

- No arm’s-length Series A–F price history is established by the reviewed filings.

- The nominal founder subscription and the merger’s deemed share value are not prices at which an outside investor could necessarily invest.

- Later public financings and the 2026 name change do not constitute additional pre-IPO rounds.

Entered prices and later-date share-basis assumptions are unverified. Excludes fees, taxes, dividends, warrants and other distributions; fractional shares are illustrative. Historical investor allocations, minimums and selling rights are not established.

Methodology: https://capitaltimemachine.com/methodology

Research terms: https://capitaltimemachine.com/terms