schemaVersion:

CUSIP Number(s):

96812F102

1Names of Reporting Persons

FIRST MANHATTAN CO. LLC.

2Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3Sec Use Only4Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:5Sole Voting Power

3,250,000.00

6Shared Voting Power

2,513,555.00

7Sole Dispositive Power

3,250,000.00

8Shared Dispositive Power

2,513,555.00

9Aggregate Amount Beneficially Owned by Each Reporting Person

5,763,555.00

10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11Percent of class represented by amount in row (9)

10.3 %

12Type of Reporting Person (See Instructions)

IA

CUSIP Number(s):

96812F102

1Names of Reporting Persons

FMC Group Holdings LP

2Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3Sec Use Only4Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:5Sole Voting Power

3,250,000.00

6Shared Voting Power

2,513,555.00

7Sole Dispositive Power

3,250,000.00

8Shared Dispositive Power

2,513,555.00

9Aggregate Amount Beneficially Owned by Each Reporting Person

5,763,555.00

10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11Percent of class represented by amount in row (9)

10.3 %

12Type of Reporting Person (See Instructions)

HC, PN

CUSIP Number(s):

96812F102

1Names of Reporting Persons

First Manhattan Management LLC

2Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

3Sec Use Only4Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:5Sole Voting Power

3,250,000.00

6Shared Voting Power

2,513,555.00

7Sole Dispositive Power

3,250,000.00

8Shared Dispositive Power

2,513,555.00

9Aggregate Amount Beneficially Owned by Each Reporting Person

5,763,555.00

10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11Percent of class represented by amount in row (9)

10.3 %

12Type of Reporting Person (See Instructions)

HC

Item 1. (a)Name of issuer:

Bridger Aerospace Group Holdings, Inc.

(b)Address of issuer’s principal executive offices:

90 Aviation Lane, Belgrade, MONTANA, 59714.

Item 2. (a)Name of person filing:

First Manhattan Co. LLC
FMC Group Holdings LP
First Manhattan Management LLC

Each a “Filer”

(b)Address or principal business office or, if none, residence:

The address of each Filer is 399 Park Avenue, 28th Floor, New York, NY 10022.

(c)Citizenship:

The citizenship for each Filer is the following:

First Manhattan Co. LLC – Delaware
FMC Group Holdings LP – Delaware
First Manhattan Management LLC – Delaware

(d)Title of class of securities:

Common Stock, $0.0001 par value per share

(e)CUSIP No.:
Item 3.If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:(a) Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b) Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c) Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d) Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e) An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f) An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g) A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h) A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i) A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j) A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),

please specify the type of institution:
(k) Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.Ownership(a)Amount beneficially owned:

See Item 9 of the cover page for each Filer.

(b)Percent of class:

See Item 11 of the cover page for each Filer.

(c)Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

See Item 5 of the cover page for each Filer.

(ii) Shared power to vote or to direct the vote:

See Item 6 of the cover page for each Filer.

(iii) Sole power to dispose or to direct the disposition of:

See Item 7 of the cover page for each Filer.

(iv) Shared power to dispose or to direct the disposition of:

See Item 8 of the cover page for each Filer.

Item 5.Ownership of 5 Percent or Less of a Class.

Not Applicable

Item 6.Ownership of more than 5 Percent on Behalf of Another Person.

Not Applicable

Item 7.Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8.Identification and Classification of Members of the Group.

Not Applicable

Item 9.Notice of Dissolution of Group.

Not Applicable

Item 10.Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Signature:Jeremy CovinoName/Title:Chief Compliance OfficerDate:04/08/2026 Signature:Andrew AspenName/Title:Authorized SignatoryDate:04/08/2026

First Manhattan Management LLC

Signature:Andrew AspenName/Title:Authorized SignatoryDate:04/08/2026