Monex Group Discloses Control Stake at Coincheck Group N.V. with 83.16%

Monex Group, Inc. disclosed it holds an 83.16% stake in Coincheck Group N.V.'s ordinary shares. The position reflects additional shares received when Coincheck bought Monex’s 97% interest in 3iQ Corp., a deal that closed on Feb. 28, 2026, prompting a switch from a Schedule 13G to a Schedule 13D. The move concentrates control with Monex and formalizes its active reporting status.

Investor Intent

Monex says it holds the shares for investment but plans to keep reviewing its position and actions with Coincheck. It notes leadership overlap between the two companies and says these individuals “may have influence over the corporate activities of the Issuer,” signaling ongoing involvement in strategy and governance.

Monex also leaves room to adjust its holdings, stating it “may seek to sell or otherwise dispose” shares and “may seek to acquire additional securities” over time. Aside from these possibilities and existing agreements, Monex reports no current plans for specific corporate actions.

Investor's Background

Monex Group, Inc. is a Japanese financial services company best known for its online brokerage and digital asset businesses. The firm owns and develops crypto-related operations, including Coincheck, aligning with a strategy that combines retail brokerage, asset management, and digital finance. Monex often builds long-term control positions in core subsidiaries to steer strategy and capture growth in emerging financial technology.

Original SEC Filing: Coincheck Group N.V. [ CNCK ] - SCHEDULE 13D - Mar. 06, 2026