Sec Form 4 Filing - Porteous William D. @ BlackSky Technology Inc. - 2021-12-21

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Porteous William D. 2. Issuer Name and Ticker or Trading Symbol BlackSky Technology Inc. [ BKSY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O BLACKSKY TECHNOLOGY INC., 13241 WOODLAND PARK ROAD, SUITE 300 3. Date of Earliest Transaction (MM/DD/YY) 12/21/2021 (Street) HERNDON, VA20171 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 12/21/2021 A 37,641( 1 ) A $ 0 37,641 D Class A Common Stock 5,139,052 I See footnote( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Porteous William D. C/O BLACKSKY TECHNOLOGY INC. 13241 WOODLAND PARK ROAD, SUITE 300 HERNDON, VA20171 X Signatures /s/ Christiana L. Lin, attorney-in-fact on behalf of William D. Porteous 12/23/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. The restricted stock units are granted pursuant to the BlackSky Technology Inc. 2021 Equity Incentive Plan. The number of restricted stock units 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 December 10, 2021. The restricted stock units will vest in three equal installments on each of December 10, 2022; December 10, 2023; and December 10, 2024, in each case subject to the Reporting Person remaining a services provider through the applicable vesting date. ( 2 )These shares are held by RRE Ventures IV, L.P. ("Ventures IV"). The general partner of Ventures IV is RRE Ventures GP IV, LLC ("GP IV"). The managing members and officers of GP IV are James D. Robinson IV, Stuart J. Ellman, and William D. Porteous. Each of GP IV and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 3, except to the extent of its or his pecuniary interest therein, if any.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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