KAISER ALUMINUM CORP 10-Q

Item 2. Unregistered Sales of Equi ty Securities and Use of Proceeds The following table provides information regarding our repurchases of our common shares during the quarter ended June 30, 2021: Equity Incentive Plan Stock Repurchase Plan Total Number of Shares Purchased 1 Average Price per Share Total Number of Shares Purchased 2 Average Price per Share Maximum Dollar Value of Shares that May Yet Be Purchased Under the Programs (millions) 2 April 1, 2021 - April 30, 2021 — $ — — $ — $ — May 1, 2021 - May 31, 2021 — — — — — June 1, 2021 - June 30, 2021 409 125.20 — — — Total 409 $ 125.20 — $ — $ — 1 Under our equity incentive plan, participants may elect to have us withhold common shares to satisfy minimum statutory tax withholding obligations arising from the recognition of income and the vesting of restricted stock, restricted stock units and performance shares. When we withhold these shares, we are required to remit to the appropriate taxing authorities the market price of the shares withheld by us on the date of withholding. The withholding of common shares by us could be deemed a purchase of such common shares. 2 In September 2018, our Board of Directors authorized an additional $100.0 million for us to repurchase shares of our common stock. At June 30, 2021, $93.1 million remained available to repurchase our common shares pursuant to the stock repurchase program. The September 2018 authorization does not have an expiration date. See Note 9 of Notes to Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2020 for additional information about restrictions on dividend payments contained in our credit agreement with Wells Fargo Bank, National Association, as administrative agent, and the other financial institutions party thereto (“Revolving Credit Facility”) and in the indenture for our unsecured senior notes. Item 3. Defaults Upon Senior Securities None. Item 4. Mine Safety Disclosures Not applicable.