BlackSky (BKSY) CEO Brian O'Toole reports RSU tax share sale, holds 988,521 shares

Rhea-AI Filing Summary

BlackSky Technology Inc. director, CEO and President Brian E. O'Toole reported an automatic sale of company stock related to equity compensation. On 12/12/2025, he sold 13,416 shares of Class A common stock at a weighted-average price of $19.27 per share. The company states these shares were sold solely to cover statutory tax withholding obligations arising from the vesting of Restricted Stock Units and were not a discretionary sale.

Following this tax-related sale, O'Toole beneficially owned 988,521 shares of BlackSky Technology Inc. common stock in direct form. This filing provides transparency into insider equity activity tied to compensation rather than an open-market portfolio decision.

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
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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^*

O'Toole Brian E

(Last) (First) (Middle)

C/O BLACKSKY TECHNOLOGY INC.,

2411 DULLES CORNER PARK, SUITE 300

(Street)

HERNDON VA 20171

(City) (State) (Zip)

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
X	Officer (give title below)		Other (specify below)
	CEO and President

3. Date of Earliest Transaction (Month/Day/Year)
12/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	12/12/2025		S		13,416(1)	D	$19.27	988,521	D

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. Represents the number of shares sold to cover the statutory tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) and does not represent a discretionary sale by the Reporting Person. The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold.

Remarks:

	/s/ Christiana L. Lin, attorney-in-fact on behalf of Brian E. OToole	12/12/2025
	** 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.

FAQ

What insider transaction did BlackSky Technology Inc. (BKSY) report for Brian O'Toole?

BlackSky Technology Inc. reported that CEO, President and director Brian E. O'Toole sold 13,416 shares of Class A common stock on 12/12/2025 at a weighted-average price of $19.27 per share.

Why did Brian O'Toole sell BlackSky (BKSY) shares on 12/12/2025?

The filing states the 13,416 shares were sold to cover statutory tax withholding obligations in connection with the vesting of Restricted Stock Units and did not represent a discretionary sale by Brian O'Toole.

How many BlackSky (BKSY) shares does Brian O'Toole own after the reported transaction?

After the reported tax-related sale, Brian O'Toole beneficially owned 988,521 shares of BlackSky Technology Inc. Class A common stock in direct form.

What type of security was involved in Brian O'Toole's BlackSky (BKSY) Form 4 filing?

The Form 4 filing involved Class A common stock of BlackSky Technology Inc., related to shares sold upon vesting of Restricted Stock Units (RSUs).

What was the transaction code used in the BlackSky (BKSY) Form 4 for Brian O'Toole?

The transaction was reported with code "S", indicating a sale of BlackSky Technology Inc. Class A common stock.

What roles does Brian O'Toole hold at BlackSky Technology Inc. (BKSY)?

Brian O'Toole is listed as a director, and an officer serving as CEO and President of BlackSky Technology Inc.