X0306 4 2021-01-06 0 0001467858 General Motors Co GM 0001817794 Carlisle Stephen K. 300 RENAISSANCE CENTER DETROIT MI 48265 0 1 0 0 Executive Vice President Common Stock 2021-01-06 4 M 0 40398 31.32 A 95807 D Common Stock 2021-01-06 4 S 0 40398 42.93 D 55409 D Employee Stock Option (Right to Buy) 31.32 2021-01-06 4 M 0 40398 0.00 D 2025-07-28 Common Stock 40398 101229 D The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. The price in Column 4 is the weighted average selling price of the shares. The shares were sold in multiple transactions at prices from $42.85 to $43.06, inclusive. The Reporting Person undertakes to provide to the SEC, GM and any security holder, upon request, full information regarding the number of shares sold at each price point within the ranges set forth in this footnote. These stock options were granted on July 28, 2015, under the Company's 2014 Long-Term Incentive Plan. Forty percent of the options became exercisable on February 15, 2017; the remaining 60% became exercisable in three equal installments on February 15, 2018, February 15, 2019, and February 15, 2020. /s/ Tia Y. Turk, Attorney-In-Fact for Mr. Carlisle 2021-01-08