ECARX Holdings Inc. (ECX) Institutional Ownership

Ownership Summary

A total of 37 institutions have reported a stake in ECARX Holdings Inc. (NASDAQ:ECX) as of December 2025, according to recent 13F filings with the SEC.

• Institutional ownership in ECARX Holdings edged up to 6.2% in December 2025, compared to 5.1% in June 2025.
• Quarterly data indicates a 12.90% shift in institutional share volume, and the annual owner count reflects an increase of 48.00%.
• The latest 13F cycle for ECARX Holdings reveals that of 37 total investors, 21 funds grew their exposure, whereas 10 reduced theirs and 6 made no changes.
• The total number of shares held by institutions in ECARX Holdings increased to 21.51Mn as of December 2025, a net change of up by 2.46Mn shares quarter on quarter, and up 12.59Mn shares year over year.
• SUSQUEHANNA INTERNATIONAL GROUP, LLP continues to be the largest institutional holder of ECARX Holdings as of December 31, 2025, with a position of 5.07Mn shares, representing 1.46% of the company's outstanding stock.
• Among the most significant buyers of ECARX Holdings during December 2025 were JANE STREET GROUP, LLC (1.53Mn), CITADEL ADVISORS LLC (1.44Mn), ACADIAN ASSET MANAGEMENT LLC (1.01Mn), TUDOR INVESTMENT CORP ET AL (854.14K), RENAISSANCE TECHNOLOGIES LLC (667.80K).
• Leading sellers of ECARX Holdings stock in December 2025 included BARCLAYS PLC (3.04Mn), STATE STREET CORP (817.99K), UBS Group AG (244.34K), Mitsubishi UFJ Asset Management Co., Ltd. (130.53K), Legal & General Group Plc (67.68K).
• The top 10 institutional holders of ECARX Holdings for the quarter ending December 2025 included SUSQUEHANNA INTERNATIONAL GROUP, LLP (5.07Mn), CITADEL ADVISORS LLC (2.46Mn), JANE STREET GROUP, LLC (2.31Mn), TUDOR INVESTMENT CORP ET AL (2.13Mn), RENAISSANCE TECHNOLOGIES LLC (1.84Mn), STATE STREET CORP (1.25Mn), Legal & General Group Plc (1.09Mn), ACADIAN ASSET MANAGEMENT LLC (1.01Mn), UBS Group AG (706.59K), Mitsubishi UFJ Asset Management Co., Ltd. (619.41K).