Compx International Inc (CIX) Institutional Ownership

Ownership Summary

Compx International Inc (NYSE:CIX) is held by 39 institutional investors per 13F filings through December 2025.

• These investors held 6.6% of outstanding shares in December 2025, down from 7.2% in September 2025.
• They decreased total shares held in Compx International by -1.36% from last quarter, and the number of investors in CIX decreased 2.5% annually.
• Of these 39 holders, 12 added to their stakes in Compx International, 21 trimmed positions, and 6 made no changes.
• Altogether, these fund groups held 807.54K shares in CIX by December 2025, down by 11.13K shares quarter on quarter, and down 149.6K shares year over year.
• DIMENSIONAL FUND ADVISORS LP holds the largest position in CIX at 179.85K shares as of December 31, 2025, or 1.46% of shares outstanding.
• Leading buyers of Compx International shares for the quarter ending December 2025 were BlackRock, Inc. (5.24K), VANGUARD GROUP INC (2.29K), GEODE CAPITAL MANAGEMENT, LLC (1.22K), Morgan Stanley (718), Royal Bank Of Canada (674).
• The largest sellers of Compx International for the quarter ending December 2025 were RENAISSANCE TECHNOLOGIES LLC (6.6K), Jpmorgan Chase & Co (6.19K), Russell Investments Group, Ltd. (3.86K), DEUTSCHE BANK AG\ (3.13K), DIMENSIONAL FUND ADVISORS LP (966).
• Per Business Quant, the top 10 investors in CIX for the quarter ending December 2025 include DIMENSIONAL FUND ADVISORS LP (179.85K), ROYCE & ASSOCIATES LP (166.07K), RENAISSANCE TECHNOLOGIES LLC (113.55K), BlackRock, Inc. (107.12K), VANGUARD GROUP INC (97.69K), GEODE CAPITAL MANAGEMENT, LLC (37.09K), State Street Corp (30.7K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (23.67K), Northern Trust Corp (17.46K), Barclays Plc (8.0K).