First Northern Community Bancorp (FNRN): M3 group reports 1.49% ownership stake

Rhea-AI Filing Summary

M3 Partners, L.P. and related entities and individuals filed an amended ownership report for First Northern Community Bancorp common stock. The group reports beneficial ownership of 244,872 shares, representing 1.49% of the outstanding common stock.

The reporting persons have shared voting and dispositive power over all 244,872 shares and no sole voting or dispositive power. All shares are held directly by M3 Partners, L.P., with M3 Funds, LLC as general partner and M3F, Inc. as investment adviser. Jason A. Stock and William C. Waller are managers or managing directors of these entities and may be deemed to share indirect beneficial ownership. The filing confirms that the group owns 5 percent or less of the class.

Key Figures

Shares beneficially owned: 244,872 shares Percent of class: 1.49% Shared voting power: 244,872 shares +1 more

4 metrics

Shares beneficially owned 244,872 shares Common stock of First Northern Community Bancorp reported by the M3 group

Percent of class 1.49% Ownership percentage of First Northern Community Bancorp common stock

Shared voting power 244,872 shares Shares over which the reporting persons share voting power

Shared dispositive power 244,872 shares Shares over which the reporting persons share dispositive power

Key Terms

beneficial owner, shared voting power, dispositive power, Schedule 13G, +1 more

5 terms

beneficial owner financial

"All of the reported shares are owned directly by M3 Partners, L.P. and could be deemed to be indirect beneficial owners"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

shared voting power financial

"Shared Voting Power 244,872.00 7 | Sole Dispositive Power 0.00 8 | Shared Dispositive Power 244,872.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

dispositive power financial

"Sole Dispositive Power 0.00 8 | Shared Dispositive Power 244,872.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Schedule 13G regulatory

"The responses of each Reporting Person to row 9 of the cover pages of this are incorporated by reference into this Item 4"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

percent of class financial

"Percent of class: The responses of each Reporting Person to row 11 of the cover pages"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

What ownership stake in FNRN does M3 Partners report in this Schedule 13G/A?

The reporting group discloses beneficial ownership of 244,872 shares of First Northern Community Bancorp common stock, representing 1.49% of the outstanding class. All reported shares are held directly by M3 Partners, L.P.

Do the M3 entities and individuals have voting control over FNRN shares?

They report shared voting power over 244,872 shares and no sole voting power. Voting and dispositive authority are shared among M3 Partners, L.P., M3 Funds, LLC, M3F, Inc., and individuals Jason A. Stock and William C. Waller.

Is the M3 ownership position in FNRN above or below 5% of the class?

The group states that it holds 5 percent or less of First Northern Community Bancorp’s common stock, specifically reporting a 1.49% ownership interest. This is reflected in the Schedule 13G/A Item 5 disclosure.

Who are the reporting persons on the First Northern Community Bancorp (FNRN) Schedule 13G/A?

The filing lists M3 Funds, LLC, M3 Partners, L.P., M3F, Inc., and individuals Jason A. Stock and William C. Waller as reporting persons, all sharing indirect beneficial ownership of the same 244,872 shares.

How are the FNRN shares held and managed by the M3 group?

All 244,872 shares are owned directly by M3 Partners, L.P.. M3 Funds, LLC serves as general partner and M3F, Inc. acts as investment adviser. Jason A. Stock and William C. Waller manage these entities and may share indirect beneficial ownership.

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Available on EDGAR 08/11/2026 - 12:17 PM Accepted by SEC EDGAR 08/11/2026 - 12:16 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

FIRST NORTHERN COMMUNITY BANCORP

(Name of Issuer)

Common Stock

(Title of Class of Securities)

335925103

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

M3 Funds, LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 244,872.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 244,872.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

244,872.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.49 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: Limited Liability Company

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

M3 Partners, LP

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 244,872.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 244,872.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

244,872.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.49 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

M3F, Inc.

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UTAH

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 244,872.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 244,872.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

244,872.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.49 %

12

Type of Reporting Person (See Instructions)

IA, CO

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

Jason A. Stock

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 244,872.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 244,872.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

244,872.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.49 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

William C. Waller

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 244,872.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 244,872.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

244,872.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.49 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: FIRST NORTHERN COMMUNITY BANCORP
(b)	Address of issuer's principal executive offices: 195 N. First Street, Dixon, CA 95620
Item 2.
(a)	Name of person filing: M3 Funds, LLC M3 Partners, LP M3F, Inc. Jason A. Stock William C. Waller
(b)	Address or principal business office or, if none, residence: For all persons filing, 2070 E 2100 S, Suite 250, Salt Lake City, UT 84109
(c)	Citizenship: M3 Funds, LLC is a Delaware limited liability company M3 Partners, LP is a Delaware limited partnership M3F, Inc. is a Utah corporation Mr. Stock and Mr. Waller are United States citizens
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 335925103
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: The responses of each Reporting Person to row 9 of the cover pages of this Schedule 13G are incorporated by reference into this Item 4. All of the reported shares are owned directly by M3 Partners, L.P. ("M3 Partners"), whose general partner is M3 Funds, LLC (the "General Partner") and whose investment adviser is M3F, Inc. (the "Investment Adviser"). The General Partner and the Investment Adviser could each be deemed to be indirect beneficial owners of the reported shares, and could be deemed to share such beneficial ownership with M3 Partners. Jason A. Stock and William C. Waller are the managers of the General Partner and the managing directors of the Investment Adviser, and could be deemed to share such indirect beneficial ownership with the General Partner, the Investment Adviser and M3 Partners.
(b)	Percent of class: The responses of each Reporting Person to row 11 of the cover pages of this Schedule 13G are incorporated by reference into this Item 4.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The responses of each Reporting Person to row 5 of the cover pages of this Schedule 13G are incorporated by reference into this Item 4.
	(ii) Shared power to vote or to direct the vote: The responses of each Reporting Person to row 6 of the cover pages of this Schedule 13G are incorporated by reference into this Item 4.
	(iii) Sole power to dispose or to direct the disposition of: The responses of each Reporting Person to row 7 of the cover pages of this Schedule 13G are incorporated by reference into this Item 4.
	(iv) Shared power to dispose or to direct the disposition of: The responses of each Reporting Person to row 8 of the cover pages of this Schedule 13G are incorporated by reference into this Item 4.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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 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.

M3 Funds, LLC

Signature:	/s/ Jason A. Stock
Name/Title:	Jason A. Stock, Manager
Date:	08/10/2026

M3 Partners, LP

Signature:	By: M3 Funds, LLC, its General Partner /s/ Jason A. Stock
Name/Title:	Jason A. Stock, Manager
Date:	08/10/2026

M3F, Inc.

Signature:	/s/ Jason A. Stock
Name/Title:	Jason A. Stock, Managing Director
Date:	08/10/2026

Jason A. Stock

Signature:	/s/ Jason A. Stock
Name/Title:	Jason A. Stock
Date:	08/10/2026

William C. Waller

Signature:	/s/ William C. Waller
Name/Title:	William C. Waller
Date:	08/10/2026