BlackSky counsel sells 13,052 shares for tax withholding

Available on EDGAR 09/14/2026 - 04:40 PM EDT Accepted by SEC EDGAR 09/14/2026 - 04:35 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

BlackSky Technology Inc. (BKSY) reported that Christiana L. Lin, General Counsel & CAO, sold 13,052 shares of Class A Common Stock on September 11, 2026, at a weighted-average price of $20.95 per share to cover statutory tax withholding obligations on vesting RSUs, which is not a discretionary sale. Following this transaction, Lin directly holds 427,680 shares, including Restricted Stock Units that each represent a contingent right to receive one share, subject to vesting conditions.

Insider Trade Summary

Net Seller: 13,052 shares

Net Sell 1 txn

Insider Lin Christiana L

Role General Counsel & CAO

Sold 13,052 shs ($273K)

Share of Position Sold 3.0%

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	13,052	$20.95	$273K

Holdings After Transaction: Class A Common Stock — 427,680 shares (Direct)

Holdings Before and After: Class A Common Stock, 440,732 to 427,680 shares (Direct)

Other Insiders: 2 other insiders reported open-market sales of this stock in the 30 days up to this filing.

Footnotes (3)

1. F1. 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.
2. F2. This transaction was executed in multiple trades at prices ranging from $20.60 to $21.34. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.
3. F3. 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.

Key Figures

Shares sold: 13,052 shares Weighted-average sale price: $20.95 per share Sale price range: $20.60–$21.34 per share +1 more

4 metrics

Shares sold 13,052 shares Class A Common Stock sold on September 11, 2026 to cover tax withholding

Weighted-average sale price $20.95 per share Average price for shares sold on September 11, 2026

Sale price range $20.60–$21.34 per share Range of individual trade prices within the September 11, 2026 transaction

Shares held after transaction 427,680 shares Direct holdings of Christiana L. Lin following the September 11, 2026 sale

Key Terms

Restricted Stock Units (RSUs), statutory tax withholding obligations, weighted-average price

3 terms

Restricted Stock Units (RSUs) financial

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

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.

statutory tax withholding obligations financial

"shares sold to cover the statutory tax withholding obligations in connection"

weighted-average price financial

"The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price"

Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.

FAQ

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

What insider transaction did BKSY disclose for Christiana L. Lin?

BKSY disclosed that Christiana L. Lin sold 13,052 shares of Class A Common Stock on September 11, 2026, at a weighted-average price of $20.95 per share, in connection with RSU vesting and related statutory tax withholding obligations.

Was the BKSY insider sale by Christiana L. Lin a discretionary trade?

No. The filing states the 13,052 shares were sold to cover statutory tax withholding obligations arising from RSU vesting and "does not represent a discretionary sale" by Christiana L. Lin.

How many BKSY shares does Christiana L. Lin hold after this transaction?

After the sale, Christiana L. Lin directly holds 427,680 shares of BlackSky Class A Common Stock, which includes RSUs that each represent a contingent right to receive one share, subject to applicable vesting schedules and conditions.

What price range applied to the BKSY insider sale on September 11, 2026?

The transaction was executed in multiple trades at prices ranging from $20.60 to $21.34 per share. The reported $20.95 per share is the weighted-average sale price across those trades.

Were Rule 10b5-1 trading plans involved in this BKSY Form 4?

No. The document-level Rule 10b5-1 checkbox is not checked, and the footnotes do not state that the September 11, 2026 sale was executed pursuant to a Rule 10b5-1 trading plan.

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

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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^*

Lin Christiana L

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel & CAO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2026

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	09/11/2026		S		13,052(1)	D	$20.95(2)	427,680(3)	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.

2. This transaction was executed in multiple trades at prices ranging from $20.60 to $21.34. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

3. 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.

Remarks:

	/s/ Christiana L. Lin	09/15/2026
	** 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)