Blackstone holders to sell 1.2M Bridger Aerospace shares

BAER securityholders affiliated with Blackstone filed a notice of proposed resale of 1,209,023 shares of common stock, with an aggregate market value of $1,511,278.75, to be sold through BTIG, LLC on or after August 17, 2026 on NASDAQ.

Rhea-AI Filing Summary

BAER securityholders affiliated with Blackstone filed a notice of proposed resale of 1,209,023 shares of common stock, with an aggregate market value of $1,511,278.75, to be sold through BTIG, LLC on or after August 17, 2026 on NASDAQ. These shares were acquired in connection with a business combination that closed on January 24, 2023.

The notice also lists prior BAER common stock sales during the past three months by Blackstone-related entities, including multi-million-share transactions by BTO Grannus Holdings IV - NQ LLC and smaller sales by Blackstone Tactical Opportunities Fund - FD L.P. and Blackstone Family Tactical Opportunities Investment Partnership III - NQ - ESC L.P.

Key Figures

Shares proposed for sale: 1,209,023 shares Aggregate market value of proposed sale: $1,511,278.75 Business combination closing date: January 24, 2023 +4 more

7 metrics

Shares proposed for sale 1,209,023 shares Common stock to be sold through BTIG, LLC on or after August 17, 2026

Aggregate market value of proposed sale $1,511,278.75 Market value of 1,209,023 BAER common shares proposed for sale

Business combination closing date January 24, 2023 Date the BAER shares were acquired in connection with a business combination

BTO Grannus sale on August 4, 2026 1,853,665 shares; $3,151,230.50 BAER common stock sold by BTO Grannus Holdings IV - NQ LLC

BTO Grannus sale on August 11, 2026 2,710,374 shares; $2,820,033.01 BAER common stock sold by BTO Grannus Holdings IV - NQ LLC

Blackstone Tactical sale on August 4, 2026 32,019 shares; $54,432.30 BAER common stock sold by Blackstone Tactical Opportunities Fund - FD L.P.

Blackstone Tactical sale on August 11, 2026 46,817 shares; $48,711.16 BAER common stock sold by Blackstone Tactical Opportunities Fund - FD L.P.

Key Terms

business combination, Common Stock, aggregate market value, Tactical Opportunities Fund

4 terms

business combination financial

"Acquired in connection with a business combination which closed on January 24, 2023."

A business combination happens when two or more companies join together to operate as one, like two friends merging their teams into a single group. This is important because it can change how companies grow, compete, and make money, often making them bigger and more powerful in the market.

Common Stock financial

"Common Stock | BTIG, LLC 350 Bush Street, 9th Floor San Francisco, CA 94104"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

aggregate market value financial

"Common Stock | BTIG, LLC ... | 1209023 | 1511278.75 | 58826140 |"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Tactical Opportunities Fund financial

"Blackstone Tactical Opportunities Fund - FD L.P. c/o Blackstone Inc."

FAQ

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

What does the BAER Form 144 filing disclose about shares to be sold?

The notice discloses a proposed sale of 1,209,023 shares of BAER common stock with an aggregate market value of $1,511,278.75. The shares are expected to be sold through BTIG, LLC on or after August 17, 2026 on NASDAQ.

Who is planning to sell BAER common stock according to this Form 144?

The notice is filed for securityholders affiliated with Blackstone, including entities such as BTO Grannus Holdings IV - NQ LLC. These entities hold BAER common stock acquired in a business combination that closed on January 24, 2023.

How were the BAER shares covered by the Form 144 originally acquired?

The 1,209,023 BAER common shares covered were acquired in connection with a business combination that closed on January 24, 2023. This means the holders received the shares as part of a merger or similar transaction rather than open-market purchases.

What BAER stock sales have Blackstone-related entities reported in the past three months?

The notice lists BAER common stock sales on August 4, 2026 and August 11, 2026 by BTO Grannus Holdings IV - NQ LLC, Blackstone Tactical Opportunities Fund - FD L.P., and Blackstone Family Tactical Opportunities Investment Partnership III. These include multi-million-share and smaller block transactions with specified dollar proceeds.

Through which broker and market are the BAER Form 144 shares expected to be sold?

The proposed 1,209,023 BAER common shares are to be sold through BTIG, LLC and are listed for sale on NASDAQ. The aggregate market value for these shares is indicated as $1,511,278.75 in the notice of proposed sale.

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

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Available on EDGAR 08/17/2026 - 09:16 PM Accepted by SEC EDGAR 08/17/2026 - 09:16 PM Learn about SEC filing dates

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	0001960388
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Bridger Aerospace Group Holdings, Inc.
SEC File Number	001-41603
Address of Issuer	90 Aviation Lane, Belgrade, MONTANA 59714
Phone	406-813-0079
Name of Person for Whose Account the Securities are To Be Sold	BTO Grannus Holdings IV - NQ LLC
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	See Remarks

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
Common Stock	BTIG, LLC 350 Bush Street, 9th Floor San Francisco, CA 94104	1209023	1511278.75	58826140	08/17/2026	NASDAQ

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 *
Common Stock	01/24/2023	Acquired in connection with a business combination which closed on January 24, 2023.	Issuer			1209023	01/24/2023	See Nature of Acquisition Transaction

* 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
BTO Grannus Holdings IV - NQ LLC c/o Blackstone Inc. 345 Park Avenue, New York NY 10154	Common Stock	08/04/2026	1853665	3151230.50
Blackstone Tactical Opportunities Fund - FD L.P. c/o Blackstone Inc. 345 Park Avenue, New York NY 10154	Common Stock	08/04/2026	32019	54432.30
Blackstone Family Tactical Opportunities Investment Partnership III - NQ - ESC L.P. c/o Blackstone Inc. 345 Park Avenue, New York NY 10154	Common Stock	08/04/2026	14316	24337.20
BTO Grannus Holdings IV - NQ LLC c/o Blackstone Inc. 345 Park Avenue, New York NY 10154	Common Stock	08/11/2026	2710374	2820033.01
Blackstone Tactical Opportunities Fund - FD L.P. c/o Blackstone Inc. 345 Park Avenue, New York NY 10154	Common Stock	08/11/2026	46817	48711.16
Blackstone Family Tactical Opportunities Investment Partnership III - NQ - ESC L.P. c/o Blackstone Inc. 345 Park Avenue, New York NY 10154	Common Stock	08/11/2026	20933	21779.82

144: Remarks and Signature

Remarks	The Seller and certain of its affiliates are, together, former 10% owners of the Issuer.
Date of Notice	08/17/2026
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	BTO Grannus Holdings IV - NQ LLC By: Blackstone Tactical Opportunities Advisors L.L.C., its IM By: /s/ Christopher J. James, Senior Managing Director
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)