Jane Street Group Increases Stake in AXT Inc to 7.5%

On April 29, 2026, Jane Street Group, LLC and its affiliated entities filed a Schedule 13G/A with the SEC, reporting an increased stake in AXT Inc (AXTI). As of the event date on April 23, 2026, the reporting group collectively beneficially owns 4,781,751 shares of common stock, representing 7.5% of the company. This is an increase from their previously reported position of 2,837,432 shares (5.1%). The filing identifies Jane Street Group, LLC as a parent holding company, with Jane Street Capital, LLC holding 4,028,992 shares (6.3%) and Jane Street Global Trading, LLC holding 752,759 shares (1.2%). Jane Street Options, LLC was also listed as a reporting person but reported zero shares. The shares are held with shared voting and dispositive power. The filing includes a certification that the securities were not acquired for the purpose of changing or influencing the control of the issuer. AXT Inc is headquartered in Fremont, California.