First Northern (FNRN): Fourthstone Group reports 7.01% passive ownership stake

Rhea-AI Filing Summary

Fourthstone LLC and related entities filed an amended Schedule 13G reporting passive ownership of First Northern Community Bancorp common stock. Fourthstone LLC and L. Phillip Stone each report beneficial ownership of 1,150,060 shares, representing 7.01% of the common stock, based on 16,407,006 shares outstanding as of May 4, 2026. The holdings are reported with shared voting and dispositive power and are certified as not acquired or held for the purpose of changing or influencing control of the issuer.

Key Figures

Fourthstone LLC beneficial ownership: 1,150,060 shares Fourthstone LLC percent of class: 7.01 % Shares outstanding: 16,407,006 shares +4 more

7 metrics

Fourthstone LLC beneficial ownership 1,150,060 shares Beneficially owned First Northern Community Bancorp common stock reported by Fourthstone LLC

Fourthstone LLC percent of class 7.01 % Percentage of First Northern Community Bancorp common stock beneficially owned by Fourthstone LLC and L. Phillip Stone IV

Shares outstanding 16,407,006 shares First Northern Community Bancorp common stock outstanding as of May 4, 2026

Fourthstone Master Opportunity Fund holding 861,324 shares Beneficially owned common stock of First Northern Community Bancorp by Fourthstone Master Opportunity Fund Ltd.

Fourthstone Master Opportunity Fund percent 5.25 % Percent of First Northern Community Bancorp common stock held by Fourthstone Master Opportunity Fund Ltd.

Fourthstone QP Opportunity Fund holding 238,455 shares Beneficially owned First Northern Community Bancorp shares by Fourthstone QP Opportunity Fund LP

Fourthstone Small-Cap Financials Fund holding 50,281 shares Beneficially owned First Northern Community Bancorp shares by Fourthstone Small-Cap Financials Fund LP

Key Terms

Schedule 13G, beneficially own, shared voting power, shared dispositive power, +1 more

5 terms

Schedule 13G regulatory

"This is being filed by Fourthstone LLC, a Delaware Limited Liability Company"

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.

beneficially own financial

"Fourthstone GP LLC is the general partner of and may be deemed to beneficially own"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

shared voting power financial

"Shared Voting Power 1,150,060.00"

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.

shared dispositive power financial

"Shared Dispositive Power 1,150,060.00"

percent of class financial

"Percent of class: 7.01 %"

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 percentage of First Northern Community Bancorp (FNRN) does Fourthstone LLC report owning?

Fourthstone LLC reports 7.01% beneficial ownership of First Northern Community Bancorp. This corresponds to 1,150,060 shares of common stock, calculated against 16,407,006 shares outstanding as of May 4, 2026.

How many First Northern Community Bancorp (FNRN) shares does Fourthstone LLC beneficially own?

Fourthstone LLC beneficially owns 1,150,060 shares of First Northern Community Bancorp common stock. This stake represents 7.01% of the company, based on 16,407,006 shares outstanding reported as of May 4, 2026.

Is Fourthstone’s stake in First Northern Community Bancorp (FNRN) reported as passive?

Yes. The reporting persons certify the securities were not acquired and are not held for the purpose of changing or influencing control. The filing is on Schedule 13G, which is used for passive ownership reporting.

Which entities related to Fourthstone report ownership in First Northern Community Bancorp (FNRN)?

The reporting persons are Fourthstone LLC, Fourthstone Master Opportunity Fund Ltd., Fourthstone GP LLC, Fourthstone QP Opportunity Fund LP, Fourthstone Small-Cap Financials Fund LP, and L. Phillip Stone IV, who is managing member of Fourthstone LLC and Fourthstone GP.

What percentage of FNRN does Fourthstone Master Opportunity Fund Ltd. report?

Fourthstone Master Opportunity Fund Ltd. reports beneficial ownership of 861,324 shares of First Northern Community Bancorp, representing 5.25% of the outstanding common stock, using the same 16,407,006-share base as of May 4, 2026.

What is the reported outstanding share count for First Northern Community Bancorp (FNRN) used in this filing?

The filing uses 16,407,006 shares of common stock outstanding for First Northern Community Bancorp. This figure is taken from the issuer’s Form 10-K, which stated that total as of May 4, 2026.

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Available on EDGAR 08/14/2026 - 04:51 PM Accepted by SEC EDGAR 08/14/2026 - 04:50 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. 2)

First Northern Community Bancorp

(Name of Issuer)

Common Stock, Common stock, without par value

(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

Fourthstone 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 1,150,060.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,150,060.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,150,060.00

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)

7.01 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

Fourthstone Master Opportunity Fund Ltd

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

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 861,324.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 861,324.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

861,324.00

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)

5.25 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

Fourthstone GP 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 288,736.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 288,736.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

288,736.00

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)

1.76 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

Fourthstone QP Opportunity Fund 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 238,455.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 238,455.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

238,455.00

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)

1.45 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

Fourthstone Small-Cap Financials Fund 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 50,281.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 50,281.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

50,281.00

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)

0.31 %

12

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).

SCHEDULE 13G

CUSIP Number(s): 335925103

1

Names of Reporting Persons

L. Phillip Stone, IV

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 1,150,060.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,150,060.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,150,060.00

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)

7.01 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: See Item 4 for a description of the information reported in rows (6), (8), (9) and (11).

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, California 95620
Item 2.
(a)	Name of person filing: This Schedule 13G is being filed by Fourthstone LLC, a Delaware Limited Liability Company and Investment Adviser ("Fourthstone"). The persons reporting information on this Schedule 13G include, in addition to Fourthstone, a company incorporated in the Cayman Islands ("Fourthstone Master Opportunity Fund"), a Delaware Limited Partnership ("Fourthstone QP Opportunity"), a Delaware Limited Partnership ("Fourthstone Small-Cap Financials"), a Delaware Limited Liability Company ("Fourthstone GP, " General Partner of Fourthstone QP Opportunity and Fourthstone Small-Cap Financials), and L. Phillip Stone, IV, a citizen of the United States of America, who is the Managing Member of Fourthstone and Fourthstone GP (each, a "Reporting Person" and, together, the "Reporting Persons"). Fourthstone directly holds 1,150,060 shares of Common Stock on behalf of its advisory clients. Each of the Reporting Persons listed in this filing certify 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 effect.
(b)	Address or principal business office or, if none, residence: The principal business address of each of the Reporting Persons is as follows: The registered office of Fourthstone LLC, Fourthstone Master Opportunity Fund Ltd., Fourthstone GP LLC, Fourthstone QP Opportunity Fund LP, Fourthstone Small-Cap Financials Fund LP is 575 Maryville Centre Drive, Suite 110, St. Louis, MO 63141.
(c)	Citizenship: See response to Item 4 of each of the cover pages.
(d)	Title of class of securities: Common Stock, Common stock, without par value
(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: Fourthstone LLC acquired the Issuer's shares in the ordinary course of business as a registered investment adviser and not with the purpose nor with the effect of influencing the control of the Issuer. Fourthstone GP LLC is the general partner of and may be deemed to beneficially own securities owned by Fourthstone QP Opportunity Fund LP and Fourthstone Small-Cap Financials Fund LP. L. Phillip Stone, IV, is the Managing Member of Fourthstone LLC and Fourthstone GP and may be deemed to beneficially own securities owned by Fourthstone.The percentages reported in Row 11 of each cover page are based on 16,407,006 shares of Common Stock (as defined below) of the Issuer (as defined below) outstanding as of May 4, 2026, based on the Issuers Form 10-K filed on May 7, 2026.
(b)	Percent of class: 7.01 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See responses to Item 5 on each cover page.
	(ii) Shared power to vote or to direct the vote: See responses to Item 6 on each cover page.
	(iii) Sole power to dispose or to direct the disposition of: See responses to Item 7 on each cover page.
	(iv) Shared power to dispose or to direct the disposition of: See responses to Item 8 on each cover page.
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 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.

Fourthstone LLC

Signature:	Amy M. Stone
Name/Title:	Chief Executive Officer
Date:	08/14/2026

Fourthstone Master Opportunity Fund Ltd

Signature:	Amy M. Stone
Name/Title:	Chief Executive Officer
Date:	08/14/2026

Fourthstone GP LLC

Signature:	L. Phillip Stone, IV
Name/Title:	Managing Member of Fourthstone GP LLC
Date:	08/14/2026

Fourthstone QP Opportunity Fund LP

Signature:	Amy M. Stone
Name/Title:	Chief Executive Officer
Date:	08/14/2026

Fourthstone Small-Cap Financials Fund LP

Signature:	Amy M. Stone
Name/Title:	Chief Executive Officer
Date:	08/14/2026

L. Phillip Stone, IV

Signature:	L. Phillip Stone, IV
Name/Title:	Self, Principal owner of Fourthstone LLC
Date:	08/14/2026