X0609 4 2026-06-10 0 0001753539 BlackSky Technology Inc. BKSY 0001400954 Lin Christiana L false C/O BLACKSKY TECHNOLOGY INC., 2411 DULLES CORNER PARK, SUITE 300 HERNDON VA 20171 0 1 0 0 General Counsel & CAO 0 Class A Common Stock 2026-06-10 4 S 0 12001 34.10 D 440732 D Options (Right To Buy) 9.23 2035-03-10 Class A Common Stock 162512 162512 D Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) and does not represent a discretionary sale by the Reporting Person. The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU. This holding report is reflected solely to clarify the vesting schedule set forth in the Form 4 filed on March 12, 2025. Each Option represents a right to purchase the underlying securities of the Issuer reported in Table II. The options are granted pursuant to the BlackSky Technology Inc. 2021 Equity Incentive Plan. The number of options and exercise price for the options was calculated based on the closing price of a share of BlackSky Technology Inc.'s Class A Common Stock on the New York Stock Exchange on March 10, 2025. One third (1/3rd) of the award vests on March 10, 2026, and thereafter, one thirty-sixth (1/36th) of the award vests or is scheduled to vest monthly on the 10th day of each month, subject to the Reporting Person continuing to be a service provider through the applicable vesting date. /s/ Christiana L. Lin 2026-06-12