Bitmine Immersion Technologies acquired 10,399 ETH over the past week, bringing its total Ethereum holdings to approximately 5.8 million ETH — the largest known corporate ETH treasury and a position significant enough to shape discussions around institutional Ethereum ownership.

The disclosure was made in an exhibit filed with an SEC Form 8-K on August 3, 2026. According to the filing, Bitmine held 5,797,813 ETH as of 4:00 p.m. ET on August 2, 2026, representing 4.8% of the stated 120.7 million ETH supply. The filing is available on the SEC archives, with additional information on Bitmine's investor relations page.

Latest Purchase in Context

While the weekly addition was modest relative to the existing position, it continued a steady accumulation pace. Bitmine Chairman Thomas "Tom" Lee confirmed the purchase directly in the filed release:

"Over the past week, we acquired 10,399 ETH."

The acquisition keeps Bitmine on track toward the 5% supply threshold it has publicly targeted. The company previously indicated it needed approximately 507,000 more ETH to reach that goal, and the latest purchase narrows that gap. Reaching 5% would place Bitmine's holdings at roughly 6 million ETH — a concentration that raises questions about supply availability for other institutional buyers and the broader market.

Treasury Strategy: An ETH-Denominated Reserve

Bitmine operates an ETH-denominated treasury rather than holding cash reserves — a model that mirrors how Strategy (formerly MicroStrategy) built its bitcoin treasury, but with Ethereum as the reserve asset. A key distinction is that Ethereum's proof-of-stake design, operational since the network's Merge transition in September 2022, allows staked ETH to earn yield while remaining part of the treasury.

The strategy is not purely passive. Bitmine reported that 4,917,189 ETH was staked as of August 2, valued at approximately $9.2 billion at an assumed price of $1,880 per ETH. This means the majority of the treasury is generating yield rather than sitting idle. Staked ETH also participates in network validation, meaning Bitmine's position carries operational weight beyond simple asset custody. The company has previously logged $45.7 million in ETH staking revenue as its yield engine scaled.

Why the Market Is Watching

A position of this scale serves as a market signal because it concentrates a measurable share of ETH supply on a single balance sheet. Independent coverage from The Block noted that Bitmine is staking over 4.9 million of the roughly 5.8 million ETH it owns, placing the company within a broader institutional staking trend.

The accumulation comes amid cautious market conditions. Ether traded near $1,841.95, down approximately 0.7% on the day against a market capitalization of roughly $222 billion. The crypto Fear & Greed Index stood at 28, in "Fear" territory.

Bitmine characterized the U.S. policy backdrop as supportive, citing the GENIUS Act — the federal stablecoin framework enacted in 2025 — and the SEC's Project Crypto, though those references served as contextual commentary in the release rather than evidence supporting the holdings count. Investor appetite for the company remains visible, with ARK Invest recently adding BitMine shares alongside the company's own concurrent stock buyback.