BlackSky director takes stock in lieu of cash

Porteous William D. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Porteous William D. reported acquisition or exercise transactions in this Form 4 filing.

BlackSky Technology Inc. director William D. Porteous received 805 shares of Class A Common Stock as compensation in stock instead of cash under the company’s Outside Director Compensation Policy for the quarter ended June 30, 2026. This award was valued using the closing share price on June 30, 2026.

Following this grant, Porteous directly holds 78,590 shares of Class A Common Stock. In addition, 719,881 shares are held indirectly through RRE Ventures IV, L.P., an investment entity associated with him and its general partner’s managers, which collectively disclaim beneficial ownership except to the extent of any pecuniary interest.

Insider Trade Summary

Grant/Award: 805 shares

Grant/Award 2 txns

Insider Porteous William D.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	805	$0.00	$0.00
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 78,590 shares (Direct); Class A Common Stock — 719,881 shares (Indirect, See footnote)

Footnotes (3)

1. 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 June 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 June 30, 2026.
2. 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.
3. 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 granted: 805 shares Grant price basis: Closing price on June 30, 2026 Direct holdings after grant: 78,590 shares +3 more

6 metrics

Shares granted 805 shares Stock in lieu of cash fees for quarter ended June 30, 2026

Grant price basis Closing price on June 30, 2026 Used to calculate 805-share award value

Direct holdings after grant 78,590 shares Class A Common Stock held directly by Porteous after grant

Indirect holdings via RRE Ventures IV, L.P. 719,881 shares Class A Common Stock held indirectly as of June 30, 2026

Transaction code A Grant, award, or other acquisition of 805 shares

Price per granted share $0.0000 Indicates non-cash, compensation-related share grant

Key Terms

Outside Director Compensation Policy, RSUs, pecuniary interest, Class A Common Stock, +1 more

5 terms

Outside Director Compensation Policy financial

"received in lieu of cash compensation under the Issuer's Outside Director Compensation Policy"

RSUs financial

"Certain of these securities are RSUs. Each RSU represents a contingent right"

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

"disclaim beneficial ownership of the securities ... except to the extent of its or his pecuniary interest therein"

Class A Common Stock financial

"These shares represent the Class A Common Stock that the Reporting Person elected to receive"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

beneficial ownership financial

"disclaim beneficial ownership of the securities reported on this Form 4"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

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

What insider transaction did BlackSky (BKSY) director William D. Porteous report?

Director William D. Porteous reported receiving 805 shares of BlackSky Class A Common Stock. These shares were granted as stock in lieu of cash compensation under the Outside Director Compensation Policy for the quarter ended June 30, 2026.

Why did BlackSky (BKSY) grant 805 shares to director William D. Porteous?

BlackSky granted 805 shares to William D. Porteous because he elected to receive stock instead of cash director fees. The number of shares was calculated using the closing Class A Common Stock price on June 30, 2026, for that quarterly compensation.

How many BlackSky (BKSY) shares does William D. Porteous hold directly after this Form 4?

After this Form 4 transaction, William D. Porteous directly holds 78,590 shares of BlackSky Class A Common Stock. This reflects the addition of 805 shares granted as compensation in stock for the quarter ended June 30, 2026.

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

An additional 719,881 BlackSky Class A shares are held by RRE Ventures IV, L.P. Its general partner is RRE Ventures GP VI, LLC, whose managing members include Porteous; they all disclaim beneficial ownership except to any pecuniary interest in those securities.

Are any BlackSky (BKSY) RSUs mentioned in William D. Porteous’s Form 4?

Yes. The filing notes that certain securities are RSUs, each representing a contingent right to receive one share of Class A Common Stock. These RSUs are subject to their specific vesting schedules and conditions before shares are actually delivered.

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

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Accepted by SEC EDGAR 06/30/2026 - 04:55 PM Learn about SEC filing dates

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)
06/30/2026

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	06/30/2026		A		805(1)	A	$0	78,590(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

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 June 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 June 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	06/30/2026
	** 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)