STOCK TITAN

BlackSky director granted 8,733 stock RSUs

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

BlackSky Technology Inc. (BKSY) reported that director William D. Porteous received a grant of 8,733 restricted stock units (RSUs) of Class A Common Stock on September 11, 2026 as a grant, award, or other acquisition under the Outside Director Compensation Policy. Each RSU represents a contingent right to one share that will vest in full upon the earlier of the one-year anniversary of the award date or the next annual stockholders’ meeting, subject to his continued board service. Following this grant, he holds 87,323 shares directly and 719,881 shares indirectly through RRE Ventures IV, L.P., for which he and related parties disclaim beneficial ownership except to the extent of any pecuniary interest.

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Insider Porteous William D.
Role Director
Type Security Shares Price Value
Grant/Award Class A Common Stock F1 8,733 $0.00 $0.00
holding Class A Common Stock F2 -- -- --
Holdings After Transaction: Class A Common Stock — 87,323 shares (Direct); Class A Common Stock — 719,881 shares (Indirect, See footnote)
Footnotes (2)
  1. 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. 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.
  2. 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.
RSUs granted 8,733 units Restricted stock units of Class A Common Stock granted September 11, 2026
Direct holdings after transaction 87,323 shares Class A Common Stock held directly by William D. Porteous after the RSU grant
Indirect holdings via RRE Ventures IV, L.P. 719,881 shares Class A Common Stock held indirectly through RRE Ventures IV, L.P., with beneficial ownership disclaimed except for pecuniary interest
RSU grant price $0.00 per unit Reported transaction price per RSU for the September 11, 2026 grant
restricted stock units (RSUs) financial
"These securities are restricted stock units (RSUs). Each RSU represents a contingent"
Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.
Outside Director Compensation Policy financial
"The RSUs are awarded in connection with the Company's Outside Director Compensation"
pecuniary interest financial
"disclaim beneficial ownership of the securities reported on this Form 4, except to"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did BlackSky (BKSY) report for director William D. Porteous in this Form 4?

The filing reports that director William D. Porteous received a grant of 8,733 restricted stock units of Class A Common Stock on September 11, 2026 as a grant, award, or other acquisition under BlackSky’s Outside Director Compensation Policy.

How do the new RSUs for William D. Porteous at BKSY vest?

The 8,733 RSUs vest in full on the earlier of one year after the award date or the date of BlackSky’s next annual stockholders’ meeting, in each case subject to William D. Porteous’s continued service on the board through the applicable vesting date.

How many BlackSky (BKSY) shares does William D. Porteous own directly after this transaction?

After the RSU award, William D. Porteous is reported as holding 87,323 shares of BlackSky Class A Common Stock directly, including the 8,733 shares underlying the newly granted restricted stock units once they vest and settle.

What indirect holdings in BlackSky (BKSY) are associated with William D. Porteous?

An additional 719,881 shares of BlackSky Class A Common Stock are held indirectly by RRE Ventures IV, L.P.. Its general partner is RRE Ventures GP VI, LLC, whose managing members include William D. Porteous; they disclaim beneficial ownership except for any pecuniary interest.

Was the BlackSky (BKSY) Form 4 transaction under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and there is no footnote stating that the 8,733 RSU grant or any holdings were made pursuant to a Rule 10b5-1 or similar pre-arranged trading plan.

What type of security was granted to William D. Porteous by BlackSky (BKSY)?

He received restricted stock units (RSUs) where each RSU represents a contingent right to receive one share of BlackSky’s Class A Common Stock, subject to the vesting conditions tied to time and continued board service described in the filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4
FORM 4UNITED 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
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Porteous William D.

(Last)(First)(Middle)
C/O BLACKSKY TECHNOLOGY INC.,
2411 DULLES CORNER PARK, SUITE 300

(Street)
HERNDON VIRGINIA 20171

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
BlackSky Technology Inc. [ BKSY ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/11/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)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)
CodeVAmount(A) or (D)Price
Class A Common Stock09/11/2026A8,733(1)A$087,323D
Class A Common Stock719,881ISee 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 (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)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 (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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. 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.
2. 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.
Remarks:
/s/ Christiana L. Lin, attorney-in-fact on behalf of William D. Porteous09/15/2026
** Signature of Reporting PersonDate
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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