BlackSky Technology Inc. — Director's Dealing 2025

Dec 10, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BlackSky Technology Inc. (BKSY)
CIK: 0001753539
Period of Report: 2025-12-10

Reporting Person: Porteous William D. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-10	Class A Common Stock	A	1500	—	Acquired	75691	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	719881	Indirect

Footnotes

F1: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. These RSUs are awarded in connection with a review conducted by the Company's Compensation Committee of Outside Director Compensation and will vest in full upon the earlier of (i) September 11, 2026 or (ii) the date of the next Annual Meeting following the Transaction Date, subject to the Outside Director remaining a Service Provider through such vesting date.

F2: These shares are held by RRE Ventures IV, L.P. ("Ventures IV"). The general partner of Ventures IV is RRE Ventures GP VI, LLC ("GP VI"). The managing members and officers of GP VI are James D. Robinson IV, Stuart J. Ellman, and William D. Porteous. Each of GP VI and Messrs. Robinson IV, Ellman, and Porteous disclaim beneficial ownership of the securities reported on this Form 4, except to the extent of its or his pecuniary interest therein, if any.