According to NLNico monitoring, several Japanese listed companies announced their Bitcoin holdings today:

Metaplanet increased its holdings by 103 BTC, bringing its total holdings to 18,991 BTC.

Remixpoint increased its holdings by 41.52 BTC, bringing its total holdings to 1,273.12 BTC;

ANAP increased its holdings by 11.68 BTC, bringing its total holdings to 1,018 BTC;

Agile Media Network Inc. increased its holdings by 0.59 BTC, bringing its total holdings to 4.69 BTC.

Additionally, Def Consulting announced it will launch a Bitcoin treasury strategy.