BitMine Immersion Technologies, the Ethereum‑focused treasury firm listed on the NYSE under ticker BMNR, disclosed on Monday that it acquired roughly 42,197 ether over the past week. The transaction, valued at about $73 million based on prevailing market prices, was detailed in the company’s own holdings update.

The purchase brings BitMine’s total ether balance to 5,742,237 ETH, which the firm said represents approximately 4.8% of the circulating supply of the cryptocurrency. BitMine positions itself as a corporate holder of ether, aiming to provide exposure to the asset for investors who prefer a regulated equity vehicle.

Chairman Tom Lee, also a co‑founder of research firm Fundstrat, has previously spoken about the strategic rationale for maintaining a sizable ether reserve, citing the network’s role in decentralized finance and smart‑contract platforms. The latest filing does not specify the exact timing of each individual trade within the week, only the aggregate amount purchased.

Analysts watching corporate crypto treasuries note that BitMine’s holding level now places it among the larger non‑exchange entities with disclosed ether positions. The firm’s approach mirrors that of other publicly traded companies that have added bitcoin or ether to their balance sheets as a treasury reserve asset.

BitMine’s update emphasized that the acquisition was executed through standard market channels and did not involve any preferential arrangements or off‑market deals. The company said it continues to monitor market conditions and may adjust its ether exposure in line with its investment policy.