Form 4 Filing for Christopher J. Murphy III

This filing details a transaction by Christopher J. Murphy III, Executive Chairman, Director, and 10% owner of 1ST SOURCE CORP. On June 12, 2026, Mr. Murphy disposed of 2,000 shares of Common Stock with a price per share of $0.00. Following this transaction, Mr. Murphy has 493,885 shares of Common Stock directly. The filing also reports indirect ownership of Common Stock through various entities: 2,513,812 shares owned by spouse (with disclaimer of beneficial ownership), 66,023 shares by 401(k), 125,893 shares by Corporation, 282,119 shares by ERCO III Partnership (with disclaimer of beneficial ownership of excess shares), 214,770 shares by Ltd. Partnership, and 584,600 shares by LLC (with disclaimer of beneficial ownership of excess shares).