X0306 4 2022-05-31 0 0001121142 Maxar Technologies Inc. MAXR 0001913993 Andora Elizabeth 1300 W. 120TH AVENUE WESTMINSTER CO 80234 0 1 0 0 SVP and CHRO Common Stock 2022-05-31 4 S 0 4860 30.2411 D 42367 D The sales were effected pursuant to a Rule 10b5-1 trading plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.02 to $30.49, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Amount reported includes 23,835 unvested restricted stock units /s/ Patricia Lamm, attorney-in-fact for Elizabeth Andora 2022-06-02