BitMine files for $300M preferred stock at 9.5% yield to expand its 5.4M ETH treasury, mirroring Strategy's STRC playbook with staking yield as the funding mechanism.

Bitmine Immersion Technologies Announces Proposed Series A Perpetual Preferred Stock Offering

The largest Ethereum treasury firm is taking a page from Michael Saylor's Strategy to issue preferred shares to tap new sources of funding.