BlackSky (NYSE: BKSY) insider to sell 12,912 RSU-based Class A shares

Rhea-AI Filing Summary

BlackSky Technology Inc. insider plans to sell recently vested shares. A holder of BlackSky Class A common stock filed a notice to sell 12,912 shares through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of $248,814.2. These shares came from restricted stock units that vested on 12/10/2025 as part of equity compensation, with payment dated 12/11/2025.

As context, 36,017,721 Class A shares were outstanding when the notice was prepared. The same seller, Henry Dubois, previously sold 31,646 Class A shares on 09/11/2025 for gross proceeds of $552,222.7. By signing the notice, the seller represents that he is not aware of any undisclosed material adverse information about BlackSky’s current or prospective operations.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common Stock	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza, 8th Floor New York NY 10004	12912	248814.2	36017721	12/12/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common Stock	12/10/2025	Restricted Share Units Vesting - See Remarks.	Issuer			12912	12/11/2025	Equity Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Henry Dubois 2411 Dulles Corner Park Suite 300 Herndon VA 20171	Class A Common Stock	09/11/2025	31646	552222.7

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 filing for BKSY disclose?

The filing discloses that a BlackSky Technology Inc. shareholder intends to sell 12,912 shares of Class A common stock on the NYSE through Morgan Stanley Smith Barney LLC, with an aggregate market value of $248,814.2.

Who is selling BlackSky (BKSY) shares and how many were previously sold?

Henry Dubois is identified as the seller. In addition to the planned sale of 12,912 shares, he previously sold 31,646 Class A shares on 09/11/2025 for gross proceeds of $552,222.7.

How were the BlackSky (BKSY) shares being sold acquired?

The 12,912 Class A shares were acquired on 12/10/2025 through restricted share units vesting, described as equity compensation, with a payment date of 12/11/2025.

How many BlackSky (BKSY) shares were outstanding at the time of the Form 144 notice?

The notice states that there were 36,017,721 Class A common shares outstanding when the planned sale of 12,912 shares was reported.

On which exchange will the BlackSky (BKSY) shares be sold and around what date?

The planned sale of 12,912 Class A shares is listed for the NYSE, with an approximate sale date of 12/12/2025.

What representation does the seller make in the BlackSky (BKSY) Form 144?

By signing the notice, the seller represents that he does not know any material adverse information about BlackSky’s current or prospective operations that has not been publicly disclosed.