BlackSky (NYSE: BKSY) CEO receives 191,666 RSUs as 24,999 shares withheld for tax

Rhea-AI Filing Summary

BlackSky Technology Inc. CEO and President Brian E. O'Toole reported compensation-related equity activity involving Class A Common Stock. On March 10, 2026, he received a grant of 191,666 restricted stock units (RSUs), each representing a contingent right to one share of Class A Common Stock.

According to the vesting schedule, one-fourth of these RSUs will vest on March 10, 2027, and thereafter one-sixteenth of the total RSUs will vest quarterly on March 10, June 10, September 10, and December 10, subject to his continued service. On March 11, 2026, 24,999 shares were withheld to satisfy tax obligations related to vested RSUs, which the footnotes state is not a market transaction. After the tax withholding, he directly held 963,522 shares of Class A Common Stock.

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

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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)
03/10/2026

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	03/11/2026		F(1)		24,999	D	$24	963,522(2)	D
Class A Common Stock	03/10/2026		A(3)		191,666	A	$0	1,155,188(2)	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 shares that have been withheld by the Issuer to satisfy tax withholding and remittance obligations in connection with the net settlement of vested restricted stock units (RSUs) and not a market transaction.

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 securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. The RSUs will vest as follows: one-fourth of the RSUs will vest on March 10, 2027, and thereafter, one-sixteenth of the total number of RSUs will vest quarterly on the 10th day of the third month of each quarter (March 10 June 10, September 10 and December 10), in each case subject to the Reporting Person continuing to be a service provider through the applicable vesting date.

Remarks:

	/s/ Christiana L. Lin, attorney-in-fact on behalf of Brian E. OToole	03/12/2026
	** 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).
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FAQ

What equity transactions did BlackSky (BKSY) CEO Brian O'Toole report?

Brian O'Toole reported an RSU grant and related tax withholding. He received 191,666 restricted stock units on March 10, 2026, and 24,999 shares were withheld the next day to cover tax obligations on vested RSUs, which was not a market sale.

How many BlackSky (BKSY) RSUs were granted to the CEO and how do they vest?

The CEO received 191,666 RSUs tied to Class A Common Stock. One-fourth of the RSUs vest on March 10, 2027, with the remaining vesting in equal one-sixteenth installments quarterly on March 10, June 10, September 10, and December 10, contingent on continued service.

Was the 24,999-share disposition by the BlackSky (BKSY) CEO a market sale?

No, the 24,999-share disposition was for tax withholding. The shares were withheld by the issuer to satisfy tax withholding and remittance obligations from net settlement of vested RSUs, and the footnote clarifies it was not a market transaction or open-market sale.

How many BlackSky (BKSY) shares does the CEO hold after these transactions?

After the reported transactions, the CEO directly held 963,522 shares. This figure reflects his Class A Common Stock holdings following the 24,999 shares withheld for tax obligations related to vested restricted stock units, as disclosed in the Form 4 data.

What does each BlackSky (BKSY) RSU granted to the CEO represent?

Each RSU represents a contingent right to one share of Class A stock. The rights become actual shares only as the RSUs vest under the specified schedule and conditions, including the requirement that Brian O'Toole remain a service provider through applicable vesting dates.

Are the BlackSky (BKSY) CEO’s reported transactions open-market buying or selling?

The transactions are compensation-related, not open-market trades. One entry is a grant of 191,666 RSUs, and the other is a 24,999-share tax-withholding disposition. The filing notes the tax withholding is not a market transaction.