Blackstone affiliates sell 2.78M Bridger Aerospace shares

Bridger Aerospace Group Holdings, Inc. (BAER) received a Form 4 from a group of affiliated Blackstone entities reporting indirect sales of Common Stock.

Rhea-AI Filing Summary

Bridger Aerospace Group Holdings, Inc. (BAER) received a Form 4 from a group of affiliated Blackstone entities reporting indirect sales of Common Stock. On August 11, 2026, entities associated with these Reporting Persons sold a total of 2,778,124 shares of BAER Common Stock at a weighted average price of $1.0405 per share, in multiple transactions within a $1.00–$1.29 price range. The securities were held indirectly through various Blackstone-managed investment vehicles, and each Reporting Person disclaimed beneficial ownership beyond its pecuniary interest.

Insider Trade Summary

Net Seller: 2,778,124 shares

Net Sell 3 txns

Insider Blackstone Holdings I L.P., Blackstone Holdings I/II GP L.L.C., BTO Grannus Holdings IV - NQ LLC, Grannus Holdings Manager - NQ LLC, Blackstone Tactical Opportunities Advisors L.L.C., Blackstone Intermediary Holdco L.L.C., BLACKSTONE SECURITIES PARTNERS L.P., Blackstone Advisory Services L.L.C.

Role 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner | 10% Owner

Sold 2,778,124 shs ($2.89M)

Type	Security	Shares	Price	Value
Sale	Common Stock F7, F1, F4, F5, F6	2,710,374	$1.0405	$2.82M
Sale	Common Stock F7, F2, F4, F5, F6	46,817	$1.0405	$49K
Sale	Common Stock F7, F3, F4, F5, F6	20,933	$1.0405	$22K

Holdings After Transaction: Common Stock — 37,272 shares (Indirect, See Footnotes)

Footnotes (7)

1. F1. Reflects securities of Bridger Aerospace Group Holdings, Inc. (the "Issuer") directly held by BTO Grannus Holdings IV - NQ LLC ("BTO Grannus IV"). BTO Grannus IV is managed by Grannus Holdings Manager - NQ LLC. Blackstone Tactical Opportunities Advisors L.L.C. is the investment manager to BTO Grannus IV. The managing member of Blackstone Tactical Opportunities Advisors L.L.C. is Blackstone Intermediary Holdco L.L.C. The sole member of Blackstone Intermediary Holdco L.L.C. is Blackstone Securities Partners L.P. The general partner of Blackstone Securities Partners L.P. is Blackstone Advisory Services L.L.C. The sole member of Blackstone Advisory Services L.L.C. is Blackstone Holdings I L.P.
2. F2. Reflects securities of the Issuer directly held by Blackstone Tactical Opportunities Fund - FD L.P. ("BTOF FD"). The general partner with management authority over BTOF FD with respect to the Common Stock held thereby is Blackstone Tactical Opportunities Associates III - NQ L.P. The general partner of Blackstone Tactical Opportunities Associates III - NQ L.P. is BTO DE GP - NQ L.L.C. The managing member of BTO DE GP - NQ L.L.C. is Blackstone Holdings II L.P.
3. F3. Reflects securities of the Issuer directly held by Blackstone Family Tactical Opportunities Investment Partnership III - NQ - ESC L.P. ("BFTOIP III"). The general partner of BFTOIP III is BTO - NQ Side-by-Side GP L.L.C. The sole member of BTO-NQ Side-by-Side GP L.L.C. is Blackstone Holdings II L.P.
4. F4. The general partner of Blackstone Holdings I L.P. and Blackstone Holdings II L.P. is Blackstone Holdings I/II GP L.L.C. The sole member of Blackstone Holdings I/II GP L.L.C. is Blackstone Inc. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.
5. F5. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.
6. F6. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.
7. F7. The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $1.00 to $1.29, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price in the range set forth in this footnote.

Key Figures

Shares sold: 2,778,124 shares Weighted average sale price: $1.0405 per share Sale price range: $1.00–$1.29 per share +1 more

4 metrics

Shares sold 2,778,124 shares Total BAER Common Stock sold indirectly by affiliated entities on August 11, 2026

Weighted average sale price $1.0405 per share Weighted average price for reported BAER Common Stock sales

Sale price range $1.00–$1.29 per share Range of prices for individual BAER share sale transactions

Number of sale transactions 3 transactions Non-derivative Common Stock sales reported with code S

Key Terms

weighted average price, beneficial ownership, pecuniary interest, ten percent owner, +1 more

5 terms

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficial ownership regulatory

"disclaims beneficial ownership of the securities held by the other Reporting Persons"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of such Reporting Person's pecuniary interest therein"

ten percent owner regulatory

"each listed Reporting Person is indicated as a ten percent owner"

Section 16 regulatory

"shall not be deemed an admission of beneficial ownership ... for purposes of Section 16"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

FAQ

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

What did Blackstone-affiliated holders report in this Form 4 for BAER?

Affiliated Blackstone entities reported indirect sales of Bridger Aerospace (BAER) Common Stock. On August 11, 2026, they sold 2,778,124 shares at a weighted average price of $1.0405 per share through multiple transactions.

How many Bridger Aerospace (BAER) shares were sold and at what price?

Affiliated Blackstone investment vehicles sold 2,778,124 BAER shares of Common Stock. The reported weighted average sale price was $1.0405 per share, with individual trades executed in a $1.00 to $1.29 price range.

Were the BAER share sales by Blackstone entities direct or indirect holdings?

The BAER share sales involved indirectly held Common Stock. The securities were held through entities such as BTO Grannus Holdings IV - NQ LLC and other Blackstone-managed funds and partnerships, as described in the ownership footnotes.

Do the Blackstone Reporting Persons claim full beneficial ownership of the BAER shares?

The Reporting Persons disclaim beneficial ownership of securities held by other Reporting Persons, except to the extent of their pecuniary interest. They state that including these securities does not admit beneficial ownership for Section 16 or other purposes.

What price range did the Bridger Aerospace (BAER) share sales cover?

The Common Stock sales were executed across a $1.00–$1.29 price range. The Form 4 reports a weighted average price of $1.0405 per share and notes that detailed trade-by-trade pricing is available upon request.

Are the BAER share sales linked to a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as relying on a trading plan. No footnote states that these BAER share sales were executed pursuant to a pre-arranged Rule 10b5-1 plan.

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

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Available on EDGAR 08/13/2026 - 05:15 PM Accepted by SEC EDGAR 08/13/2026 - 05:14 PM Learn about SEC filing dates

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

X

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^*

Blackstone Holdings I L.P.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Bridger Aerospace Group Holdings, Inc. [ BAER ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2026

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

	Form filed by One Reporting Person
X	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
Common Stock	08/11/2026		S		2,710,374	D	$1.0405(7)	4,825,856	I	See Footnotes(1)(4)(5)(6)
Common Stock	08/11/2026		S		46,817	D	$1.0405(7)	83,358	I	See Footnotes(2)(4)(5)(6)
Common Stock	08/11/2026		S		20,933	D	$1.0405(7)	37,272	I	See Footnotes(3)(4)(5)(6)

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

1. Name and Address of Reporting Person^*

Blackstone Holdings I L.P.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Blackstone Holdings I/II GP L.L.C.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

BTO Grannus Holdings IV - NQ LLC

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Grannus Holdings Manager - NQ LLC

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Blackstone Tactical Opportunities Advisors L.L.C.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Blackstone Intermediary Holdco L.L.C.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

BLACKSTONE SECURITIES PARTNERS L.P.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Blackstone Advisory Services L.L.C.

(Last) (First) (Middle)

C/O BLACKSTONE INC.

345 PARK AVENUE

(Street)

NEW YORK NEW YORK 10154

(City) (State) (Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. Reflects securities of Bridger Aerospace Group Holdings, Inc. (the "Issuer") directly held by BTO Grannus Holdings IV - NQ LLC ("BTO Grannus IV"). BTO Grannus IV is managed by Grannus Holdings Manager - NQ LLC. Blackstone Tactical Opportunities Advisors L.L.C. is the investment manager to BTO Grannus IV. The managing member of Blackstone Tactical Opportunities Advisors L.L.C. is Blackstone Intermediary Holdco L.L.C. The sole member of Blackstone Intermediary Holdco L.L.C. is Blackstone Securities Partners L.P. The general partner of Blackstone Securities Partners L.P. is Blackstone Advisory Services L.L.C. The sole member of Blackstone Advisory Services L.L.C. is Blackstone Holdings I L.P.

2. Reflects securities of the Issuer directly held by Blackstone Tactical Opportunities Fund - FD L.P. ("BTOF FD"). The general partner with management authority over BTOF FD with respect to the Common Stock held thereby is Blackstone Tactical Opportunities Associates III - NQ L.P. The general partner of Blackstone Tactical Opportunities Associates III - NQ L.P. is BTO DE GP - NQ L.L.C. The managing member of BTO DE GP - NQ L.L.C. is Blackstone Holdings II L.P.

3. Reflects securities of the Issuer directly held by Blackstone Family Tactical Opportunities Investment Partnership III - NQ - ESC L.P. ("BFTOIP III"). The general partner of BFTOIP III is BTO - NQ Side-by-Side GP L.L.C. The sole member of BTO-NQ Side-by-Side GP L.L.C. is Blackstone Holdings II L.P.

4. The general partner of Blackstone Holdings I L.P. and Blackstone Holdings II L.P. is Blackstone Holdings I/II GP L.L.C. The sole member of Blackstone Holdings I/II GP L.L.C. is Blackstone Inc. The sole holder of the Series II preferred stock of Blackstone Inc. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

5. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

6. Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

7. The price reported in Column 4 is a weighted average price. These shares of Common Stock were sold in multiple transactions at prices ranging from $1.00 to $1.29, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price in the range set forth in this footnote.

Remarks:

Because no more than 10 reporting persons can file any one Form 4 through the Securities and Exchange Commission's EDGAR system, certain affiliates of the Reporting Persons have filed separate Forms 4.

	/s/ See Exhibit 99.1	08/13/2026
	** 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)