Capital Stock

3 Months Ended

Mar. 31, 2022

Equity [Abstract]

Capital Stock

Capital Stock

On March 25, 2022, all outstanding shares of the Company’s Class B common stock automatically converted into shares of the Company’s Class A common stock on a one-for-one basis, pursuant to the terms of the Company’s Third Amended and Restated Articles of Incorporation, as amended (the “Charter”). No additional shares of Class B common stock are permitted to be issued. The conversion occurred automatically pursuant to the Company’s Charter because the number of the Company’s outstanding shares of Class B common stock represented on March 25, 2022, the record date for determining the shareholders of the Company entitled to notice of, and to vote at, the Company’s upcoming 2022 Annual Meeting of Shareholders, was less than twenty percent (20%) of the aggregate number of all of the outstanding shares of Class A common stock and Class B common stock of the Company. The former holders of Class B common stock now hold Class A common stock with the same voting powers, preferences, rights and qualifications, limitations and restrictions as the other holders of Class A common stock. All shares of the Company’s outstanding capital stock are now composed solely of shares of Class A common stock and are entitled to one vote per share. The Company’s Class A common stock will continue to trade on the NASDAQ Stock Market under the ticker symbol “FIBK”

The Company had 109,503,010 shares of Class A common stock outstanding as of March 31, 2022. The Company had 41,699,409 shares of Class A common stock and 20,501,047 shares of Class B common stock outstanding as of December 31, 2021.

On February 1, 2022, the Company issued 46,879,601 shares of its Class A common stock with an aggregate value of approximately $1.7 billion as consideration for the acquisition of Great Western. During the three months ended March 31, 2022 and 2021, the Company also issued 7,503 shares and 604 shares, respectively, of its Class A common stock to directors for their annual service on the Company's board of directors. The aggregate value of the shares issued to directors is included in employee benefits in the consolidated statement of income and in stock-based compensation expense in the consolidated statements of changes in stockholders' equity.

On June 11, 2019, the Company’s board of directors adopted a stock repurchase program pursuant to which the Company may repurchase up to 2.5 million of its outstanding shares of Class A common stock. On September 12, 2020, the Company’s board of directors increased the number of shares of Class A common stock authorized to be repurchased by the Company under the stock repurchase program by an additional 3.0 million shares for a total of 5.5 million shares. There were no shares repurchased under the program during the three months ended March 31, 2022. During the three months ended March 31, 2021, the Company repurchased and retired 72,700 shares of our Class A common stock at a total cost of $2.9 million, including costs and commissions, at an average cost of $39.69 per share. The shares of common stock repurchased during the period represented 1.3% of the total 5.5 million shares authorized to be repurchased. As of March 31, 2022, there were 1.9 million shares remaining authorized under the repurchase program.

All other stock repurchases during the three months ended March 31, 2022 and 2021, were redemptions of vested restricted shares tendered in lieu of cash for payment of income tax withholding amounts by participants in the Company’s equity compensation plans.