An investor who criticized the management of Square Enix has increased their stake in the company, sparking curiosity among industry observers. The 3D Investment Partners fund, known for its vocal dissent, has recently boosted its shareholding from 14.36% to 16.48%. This move has caught the eye of Kantan Games analyst Serkan Toto, who noted that the fund purchased Square Enix shares twice in December alone. At this rate, 3D Investment Partners could soon become the largest shareholder, surpassing even Square Enix founder Yasuhiro Fukushima, who currently holds 19.28% of the company. This development suggests a potential shift in the company's direction, as the investor aims to push its management proposals more effectively. It's worth noting that 3D Investment Partners first invested in Square Enix in April 2025, acquiring 5.47% of its shares. From the outset, they stated their intention to not only invest but also advise the company's management. In December, the activist investor published a comprehensive 112-page presentation outlining Square Enix's problems and calling for a change in business strategy. While Square Enix representatives have yet to respond, the investor's growing influence and public criticism could significantly impact the company's future trajectory.