Cipher Mining Prices Convertible Senior Notes Offering and Hedging Transaction to Place Borrowed Common Stock

Cipher Mining (CIFR) announced the pricing of a $150 million convertible senior notes offering due 2030, with a 1.75% interest rate and an initial conversion price of $4.45 per share, a 30% premium over the concurrent $3.42 delta offering price. The company intends to use the net proceeds of approximately $145.9 million to complete Phase 1 of its Black Pearl data center project, including purchasing mining rigs and covering infrastructure costs; completion of both offerings are contingent on each other.

Analysis

Cipher Mining Inc. has announced the pricing of a $150 million public offering of convertible senior notes maturing in 2030, featuring a 1.75% annual interest rate. The offering includes a 30-day underwriter option to purchase an additional $22.5 million in notes. The initial conversion price is set at approximately $4.45 per share, representing a 30.00% premium over the $3.42 public offering price per share in a concurrent delta offering of 17,540,000 shares of common stock; this delta offering is intended to facilitate hedging activities by note purchasers. Net proceeds, estimated at $145.875 million (or $167.756 million if the over-allotment option is fully exercised), are primarily designated for the completion of Phase 1 of Cipher's Black Pearl data center project. This funding will cover the purchase of discounted mining rigs, associated tariffs and shipping costs, and other infrastructure-related capital expenditures. Cipher has also amended its agreement with Bitmain Technologies, securing an updated rig delivery schedule by June 23, 2025, a 10% cost reduction on these rigs via early payment, and additional value from BTC-linked call options, aiming to accelerate deployment and partially offset tariff impacts. The notes are senior, unsecured obligations, and conversions can be settled in cash, common stock, or a combination at Cipher's discretion, introducing potential equity dilution. Cipher retains a redemption option on or after May 22, 2028, if its stock price exceeds 130% of the conversion price for a specified period, while noteholders have a repurchase option on May 15, 2028.

Key Decisions for Investors

• Investors should evaluate the dilutive potential of the convertible notes, particularly given the $4.45 initial conversion price compared to the $3.42 concurrent delta offering price, against the growth prospects enabled by the Black Pearl data center expansion.
• Monitor the execution timeline and cost efficiencies related to Phase 1 of the Black Pearl project, including the successful deployment of rigs secured under the amended Bitmain agreement by June 2025, as these are critical to realizing projected returns.
• Consider the implications of the note's terms, such as Cipher's redemption rights and noteholders' put option in 2028, on future capital structure flexibility and potential stock price volatility, particularly as the conversion price threshold is approached.