Marchex Inc (MCHX) Institutional Ownership

Ownership Summary

A total of 25 institutions have reported a stake in Marchex Inc (NASDAQ:MCHX) as of December 2025, according to recent 13F filings with the SEC.

• These investors collectively held 45.3% of the company's total shares outstanding in December 2025, down from 48.3% in September 2025.
• The company experienced a -0.32% quarterly change in institutional shares held, alongside a decrease of 24.24% in total owners annually.
• Of these 25 institutional investors, 5 increased their holdings in Marchex, while 6 of them reduced positions, and 14 investors maintained their exposure.
• The aggregate institutional position in Marchex now stands at 19.89Mn shares as of December 2025, after investors decreased their holdings (down by 63.40K shares quarter on quarter which is down 489.21K shares year over year).
• Edenbrook Capital, LLC continues to be the largest institutional holder of Marchex as of December 31, 2025, with a position of 14.66Mn shares, representing 33.42% of the company's outstanding stock.
• Among the most significant buyers of Marchex during December 2025 were XTX Topco Ltd (15.42K), BlackRock, Inc. (2.24K), GEODE CAPITAL MANAGEMENT, LLC (1.13K), GOLDMAN SACHS GROUP INC (366), UBS Group AG (27).
• Leading sellers of Marchex stock in December 2025 included RENAISSANCE TECHNOLOGIES LLC (34.80K), DIMENSIONAL FUND ADVISORS LP (21.57K), ACADIAN ASSET MANAGEMENT LLC (18.82K), MORGAN STANLEY (5.67K), Tower Research Capital LLC (TRC) (1.14K).
• The top 10 institutional holders of Marchex for the quarter ending December 2025 included Edenbrook Capital, LLC (14.66Mn), RENAISSANCE TECHNOLOGIES LLC (1.66Mn), VANGUARD GROUP INC (1.29Mn), BlackRock, Inc. (635.15K), GEODE CAPITAL MANAGEMENT, LLC (403.35K), P.A.W. CAPITAL CORP (400.00K), ACADIAN ASSET MANAGEMENT LLC (254.49K), STATE STREET CORP (134.60K), NORTHERN TRUST CORP (76.03K), DIMENSIONAL FUND ADVISORS LP (66.28K).