HOLDCO ASSET MANAGEMENT RELEASES PRESENTATION TO FIRST INTERSTATE BANCSYSTEM, INC.

Core Viewpoint - HoldCo Asset Management, LP has expressed its intention to remain a long-term shareholder of First Interstate BancSystem, Inc. following recent concessions made by the Board and management, and it will actively monitor the company's actions and capital allocation decisions [2]. Group 1: Company Overview - HoldCo Asset Management, LP is a Florida-based investment firm managing approximately $2.6 billion in regulatory assets under management [1][3]. - The firm was founded by Vik Ghei and Misha Zaitzeff [3]. Group 2: Shareholder Actions - HoldCo disclosed its ownership of common stock in First Interstate BancSystem, Inc., indicating an economic interest in the price of these securities [1]. - The firm does not intend to pursue a proxy contest at the 2026 Annual Meeting but reserves the right to take necessary actions to protect shareholder rights if the Board's actions are inconsistent with its expectations [2].