BitMine Immersion Technologies (NYSE: BMNR), the Ethereum treasury company chaired by Tom Lee, disclosed Monday that it acquired 27,562 $ETH over the prior week, lifting its holdings to 5,983,940 tokens — about 4.9% of the total supply — and pushing its crypto and cash reserves past $17 billion, according to a company release. The disclosure cements BitMine’s standing as the largest public holder of ether.

Treasury Nears the 5% Milestone

As of September 20, BitMine held 5,983,940 $ETH priced at $2,688 per token, alongside 212 Bitcoin, $714 million in cash and marketable securities, a $180 million stake in Beast Industries and a $105 million stake in Eightco Holdings (NASDAQ: ORBS). The company put its combined crypto, cash and equity holdings at $17.1 billion and said the $ETH position alone equals 4.9% of a 122.1 million-token supply. It labels the Beast Industries and Eightco positions as “moonshots” alongside its staking and cash businesses.

“Over the past week, we acquired 27,562 $ETH,” Lee said in the release. “BitMine has bought $ETH each and every week since the inception of its $ETH Treasury Strategy on June 30, 2025.”

Staking Turns the Treasury Into Income

The bulk of the position now earns yield. BitMine said 5,067,309 $ETH — worth $13.6 billion, or 85% of its holdings — is staked, generating a 7-day yield of 2.62% annualized. “Bitmine has staked more $ETH than other entities in the world,” Lee said, adding that annualized staking revenue is now projected at roughly $357 million, rising to $421 million once the stack is fully deployed through its MAVAN staking platform. The update follows last week’s disclosure, when BitMine’s holdings crossed 5.96 million $ETH.

Largest Ether Treasury Extends Its Weekly Streak

The latest purchase keeps intact an unbroken weekly buying streak that began with the strategy’s launch in mid-2025. The Norwalk, Connecticut-based company funds the program through its bitcoin mining operations and the proceeds of capital raises, and it has stepped up buying as institutional interest in ether grows. With 4.9% of the supply already in hand, it is closing in on the 5% share it has flagged as a milestone — a goal its materials call the “alchemy of 5%”.