ALT5 Sigma shares surge 28.78% after-hours after regaining Nasdaq compliance with financial filing requirements.

ALT5 Sigma surged 28.78% in after-hours trading following its announcement that it has regained compliance with Nasdaq’s periodic filing requirements under Listing Rule 5250(c)(1). The fintech company resolved a November 2025 compliance notice by filing its delayed Form 10-Q for the quarter ending September 27, 2025, on January 12, 2026. Nasdaq confirmed the matter was closed, restoring the company’s good standing and alleviating risks of delisting or trading restrictions. CEO Tony Isaac emphasized the resolution as a milestone reflecting improved corporate governance and regulatory adherence, which likely reassured investors concerned about prior compliance issues. The positive reaction aligns with the company’s broader strategic focus on its $WLFI digital asset treasury initiatives and operational transparency, though the stock remains significantly below its 52-week high. The after-hours rally underscores market optimism about the resolution of regulatory hurdles and renewed confidence in the firm’s compliance and governance practices.