BlackSky director Porteous receives 1,055 shares

Q: How many BKSY shares did director William D. Porteous receive?

William D. Porteous acquired 1,055 Class A common shares on September 30, 2026. He elected to receive the shares in lieu of cash compensation under the Outside Director Compensation Policy for the quarter ended September 30, 2026.

Q: Who held the 719,881 BKSY shares reported indirectly?

RRE Ventures IV, L.P. held the 719,881 shares. Its general partner was RRE Ventures GP VI, LLC; that general partner's managing members and officers James D. Robinson IV, Stuart J. Ellman and William D. Porteous disclaimed beneficial ownership except to the extent of any pecuniary interest.

After the award, the director reported direct holdings of 88,378 shares, certain of which are RSUs subject to vesting schedules and conditions.

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Form Type

Rhea-AI Filing Summary

BlackSky Technology Inc. (BKSY) director William D. Porteous acquired 1,055 Class A common shares on September 30, 2026, under the company's Outside Director Compensation Policy, receiving shares in lieu of cash compensation for the quarter ended September 30, 2026. Separately, 719,881 shares were held by RRE Ventures IV, L.P.

Insider Trade Summary

Grant/Award: 1,055 shares

Grant/Award 2 txns

Insider Porteous William D.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock ^{F1, F2}	1,055	$0.00	$0.00
holding	Class A Common Stock ^F3	--	--	--

Holdings After Transaction: Class A Common Stock — 88,378 shares (Direct); Class A Common Stock — 719,881 shares (Indirect, See footnote)

Footnotes (3)

F1. These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2026.
F2. 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.
F3. 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.

Key Figures

Shares acquired: 1,055 Class A common shares Direct holdings after award: 88,378 shares Shares held by RRE Ventures IV, L.P.: 719,881 shares

3 metrics

Shares acquired 1,055 Class A common shares September 30, 2026; in lieu of cash compensation for the quarter ended September 30, 2026

Direct holdings after award 88,378 shares Reported after the September 30, 2026 award; certain securities are RSUs

Shares held by RRE Ventures IV, L.P. 719,881 shares Reported September 30, 2026

Key Terms

RSUs, pecuniary interest, vesting schedule

3 terms

RSUs financial

"Certain of these securities are RSUs."

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

pecuniary interest financial

"except to the extent of its or his pecuniary interest therein, if any"

vesting schedule financial

"subject to the applicable vesting schedule and conditions of each RSU"

A vesting schedule is a timeline that determines when someone gains full ownership of certain benefits, such as company stock or retirement contributions. Think of it like earning the right to own a gift gradually over time, rather than receiving it all at once. It matters to investors because it affects when they can fully access or sell these benefits, influencing their financial planning and decision-making.

FAQ

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

How many BKSY shares did director William D. Porteous receive?

William D. Porteous acquired 1,055 Class A common shares on September 30, 2026. He elected to receive the shares in lieu of cash compensation under the Outside Director Compensation Policy for the quarter ended September 30, 2026.

Who held the 719,881 BKSY shares reported indirectly?

RRE Ventures IV, L.P. held the 719,881 shares. Its general partner was RRE Ventures GP VI, LLC; that general partner's managing members and officers James D. Robinson IV, Stuart J. Ellman and William D. Porteous disclaimed beneficial ownership except to the extent of any pecuniary interest.

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

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Available on EDGAR 10/01/2026 - 04:33 PM Accepted by SEC EDGAR 10/01/2026 - 04:32 PM

SEC Form 4

FORM 4

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
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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	09/30/2026		A		1,055⁽¹⁾	A	$0	88,378⁽²⁾	D
Class A Common Stock								719,881	I	See footnote⁽³⁾

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. These shares represent the Class A Common Stock that the Reporting Person elected to receive in lieu of cash compensation under the Issuer's Outside Director Compensation Policy for the quarter ended September 30, 2026. The number of shares awarded in lieu of cash was calculated based on the closing price of a share of Class A Common Stock on September 30, 2026.

2. 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.

3. 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. Porteous	10/02/2026
	** Signature of Reporting Person	Date
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)

Source: View Original Filing on SEC EDGAR