Jane Street Increases Marathon Ownership to 6.5%, Worth $334M

Proprietary trading firm Jane Street has increased the ownership of Marathon, now representing 6.5% of the outstanding shares of the largest public bitcoin mining firm.

A new Schedule 13G filing of Marathon on Friday shows that Jane Street owned 14.4 million shares of Marathon as of Dec. 31, which is worth $334 million based on Marathon’s latest closing price.

It appears the quantitative trading firm has significantly increased its position over the last quarter of 2023 as data from Yahoo Finance shows Jane Street owned only 1.65 million shares as of Sept. 29.

This also appears to be the first time that Jane Street reports ownership of more than 5% of Marathon’s outstanding shares.

Meanwhile, Bit Digital (NASDAQ: BTBT) filed an update on Friday that shows BlackRock’s asset management and investment management subsidiaries increased the ownership of Bit Digital to 7.4 million shares as of Dec. 31. That represented 8.2% of Bit Digital’s outstanding shares.

That adds to the portfolio of BlackRock’s material ownership in bitcoin mining stocks. As previously reported, BlackRock’s investment and asset management subsidiaries significantly increased their positions in Marathon and Riot over 2023.