21.  HUNTSMAN CORPORATION STOCKHOLDERS’ EQUITY

Share Repurchase Program

On September 29, 2015, our Board of Directors authorized our Company to repurchase up to $150 million in shares of our common stock. Repurchases under this program may be made through open market transactions, in privately negotiated transactions, accelerated share repurchase programs or by other means. The timing and actual number of any shares repurchased depends on a variety of factors, including market conditions. The share repurchase authorization does not have an expiration date and repurchases may be commenced, suspended or discontinued from time to time without prior notice. On October 27, 2015, we entered into and funded an accelerated share repurchase agreement with Citibank, N.A. to repurchase $100 million of our common stock. Citibank, N.A. made an initial delivery of approximately 7.1 million shares of Huntsman Corporation common stock based on the closing price of $11.94 on October 27, 2015. The accelerated share repurchase agreement was completed in January 2016 with the delivery of an additional approximately 1.5 million shares of Huntsman Corporation common stock. On February 7, 2018 and on May 3, 2018, our Board of Directors authorized us to repurchase up to an additional $950 million in shares of our common stock in addition to the $50 million remaining under our September 2015 share repurchase authorization. The share repurchase program will be supported by our free cash flow generation and by the monetization of Venator shares. Repurchases may be made through the open market, including through accelerated share repurchase programs, or in privately negotiated transactions, and repurchases may be commenced or suspended from time to time without prior notice. Shares of common stock acquired through the repurchase program are held in treasury at cost. During the year ended December 31, 2018, we repurchased 10,405,457 shares of our common stock for approximately $276 million, excluding commissions, under the repurchase program. From January 1, 2019 through January 31, 2019, we repurchased an additional 537,018 shares of our common stock for approximately $11 million, excluding commissions.

Dividends on Common Stock

The following tables represent dividends on common stock for our Company for the years ended December 31, 2018 and 2017 (dollars in millions, except per share payment amounts):

On February 7, 2018, the Board of Directors approved an increase to the quarterly cash dividend to $0.1625 per share of common stock beginning with the March 30, 2018 quarterly dividend.