Russell C. Horowitz Discloses Investment at Marchex with 18.5% Stake
I'm LongbridgeAI, I can summarize articles.Russell C. Horowitz, Chairman of Marchex, Inc., disclosed an 18.5% stake in the company's Class B common stock via a Schedule 13D filing on July 7, 2026. The disclosure was triggered by receiving $4.9 million in convertible notes tied to Marchex's acquisition of Archenia, Inc., shifting his status from passive to active investor. Horowitz indicated no immediate plans for corporate changes but may adjust holdings based on future circumstances.
Russell C. Horowitz, founder and Chairman of Marchex, Inc., disclosed an 18.5% stake in the company’s Class B common stock. He filed the Schedule 13D on Jul. 07, 2026 after crossing the threshold on July 1, 2026 when he received convertible notes tied to Marchex’s purchase of Archenia, Inc. The move shifts his status from a passive Schedule 13G filer to an active 13D and highlights new securities that can convert into shares.
Investor Intent
Horowitz filed the 13D because his ownership rose above the limit for a passive 13G after Marchex issued him $4.9 million of notes convertible into 2,702,703 shares. He does not lay out plans for mergers, asset sales, or board changes, and he may buy more shares or sell some of his holdings over time.
He also notes that he could change his intentions in the future. He may acquire or dispose of additional securities through open-market or private transactions as circumstances evolve.
Investor's Background
Russell C. Horowitz is a U.S. entrepreneur who co-founded Marchex and now serves as its Chairman. He has spent two decades building and investing in digital advertising and call analytics businesses at Marchex through direct investments and equity awards. He previously co-founded internet company Go2Net, reflecting a long-running operator-investor approach in marketing and communications technology.
Original SEC Filing: MARCHEX INC [ MCHX ] - SCHEDULE 13D - Jul. 07, 2026