Compx International CIX Institutional Ownership

Ownership Summary

Compx International Inc (NYSE:CIX) is held by 41 institutional investors per 13F filings through March 2026.

• Collectively, these holders controlled 6.4% of Compx International's outstanding shares in March 2026, down from 6.6% in December 2025.
• Their total shares held in CIX increased 12.33% quarter over quarter, and separately, investors owning Compx International decreased 2.38% from a year ago.
• Activity in CIX broke down as 13 buyers, 17 sellers, and 11 unchanged among 41 total holders.
• Institutional investors collectively held 793.34K shares in Compx International as of March 2026, up by 87.09K shares quarter on quarter, and down 170.19K shares year over year.
• DIMENSIONAL FUND ADVISORS LP holds the largest position in CIX at 179.41K shares as of March 31, 2026, or 1.46% of shares outstanding.
• The largest buyers of Compx International for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (78.22K), VANGUARD FIDUCIARY TRUST CO (10.64K), VANGUARD PORTFOLIO MANAGEMENT LLC (8.83K), EverSource Wealth Advisors, LLC (4.22K), BlackRock, Inc. (389).
• The largest sellers of Compx International for the quarter ending March 2026 were RENAISSANCE TECHNOLOGIES LLC (6.6K), GEODE CAPITAL MANAGEMENT, LLC (2.51K), Barclays Plc (2.07K), Wells Fargo & Company/Mn (1.13K), Jpmorgan Chase & Co (1.09K).
• Business Quant data shows the 10 biggest positions in Compx International as of March 2026 are held by DIMENSIONAL FUND ADVISORS LP (179.41K), ROYCE & ASSOCIATES LP (166.07K), BlackRock, Inc. (107.5K), RENAISSANCE TECHNOLOGIES LLC (106.95K), VANGUARD CAPITAL MANAGEMENT LLC (78.22K), GEODE CAPITAL MANAGEMENT, LLC (34.58K), State Street Corp (30.6K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (23.67K), Northern Trust Corp (16.99K), VANGUARD FIDUCIARY TRUST CO (10.64K).