JST GROUP's stock fell sharply by 5.09% during Tuesday's intraday trading session.

The decline follows a regulatory filing revealing a shareholder deposited shares worth HK$529 million, representing 7.05% of the company's issued capital, into a securities account. This transaction occurred after the six-month post-listing lock-up period for cornerstone investors expired, potentially signaling increased selling availability and pressure on the stock.

Investor sentiment was also likely impacted by the company's 2025 financial results, which showed a shift to a loss attributable to owners of approximately RMB 1.655 billion, despite a 25.6% increase in annual revenue. The company attributed the loss primarily to the accounting impact of converting pre-IPO issued convertible redeemable preferred shares into ordinary shares upon listing.