SEC Form 4 · accession 0001865965-26-000008
BlackSky Technology Inc. · BKSY
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
William D. Porteous
Director
Period of report
Sep 11, 2026
Accepted (ET)
Sep 14, 2026 · 4:38 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001753539
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF1 | Sep 11, 2026 | A | 8,733 | $0.00 | A | 87,323 | D | |
| Class A Common StockF2 | holding | — | — | — | 719,881 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock. The RSUs are awarded in connection with the Company's Outside Director Compensation Policy and will vest in full upon the earlier of the one-year anniversary of the award date or the date of the Issuer's next annual meeting of the stockholders, in each case subject to the Reporting Person's continued service on the Issuer's board of directors through the applicable vesting date.
- F2These 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.