Statement of Changes in Beneficial Ownership (4)

X0306 4 2020-09-01 0 0001121142 Maxar Technologies Inc. MAXR 0001544511 JABLONSKY DANIEL L 1300 W. 120TH AVENUE WESTMINSTER CO 80234 1 1 0 0 President and CEO Common Stock 2020-09-01 4 P 0 3000 22.6868 A 339533 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $22.6867 to $22.687, 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 purchased at each separate price within the range set forth in this footnote. Amount reported includes 209,092 unvested restricted stock units. /s/ Patricia Lamm, attorney-in-fact for Daniel L. Jablonsky 2020-09-01