First Northern director proposes $41K share sale

Mark C. Schulze’s six reported August sales span August 4 through August 11, 2026, apart from the proposed sale dated approximately November 3, 2026.

Available on EDGAR 11/05/2026 - 08:23 PM EST Accepted by SEC EDGAR 11/05/2026 - 08:22 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

FIRST NORTHERN COMMUNITY BANCORP director Mark C. Schulze gave notice of a proposed sale of 2,500 common shares, with an aggregate market value of $40,995.00 and an approximate sale date of November 3, 2026, through Raymond James on NASDAQ. The remarks identify a trading plan intended to comply with Rule 10b5-1(c), adopted August 18, 2026. The notice also lists six sales from August 4 through August 11, 2026.

Key Figures

Proposed sale: 2,500 common shares Aggregate market value: $40,995.00 Prior sale: 3,000 shares; $55,053.71 +5 more

8 metrics

Proposed sale 2,500 common shares Approximate sale date November 3, 2026

Aggregate market value $40,995.00 Proposed sale

Prior sale 3,000 shares; $55,053.71 August 4, 2026

Prior sale 232 shares; $4,227.96 August 5, 2026

Prior sale 400 shares; $7,217.42 August 6, 2026

Prior sale 2,250 shares; $38,528.55 August 10, 2026

Prior sale 3,000 shares; $50,751.15 August 10, 2026

Prior sale 1,118 shares; $19,391.72 August 11, 2026

Key Terms

Rule 10b5-1(c), Rule 144, Stock Dividend

3 terms

Rule 10b5-1(c) regulatory

"trading plan intended to comply with Rule 10b5-1(c)"

Rule 10b5-1(c) is an SEC guideline that lets company insiders set up a written, pre-planned schedule to buy or sell their company stock when they are not in possession of material, nonpublic information. For investors, it matters because such plans can reduce the appearance of insider trading by separating decisions from inside knowledge—like putting your trades on autopilot—while also requiring scrutiny since pre-planned trades can still affect market confidence and share value.

Rule 144 regulatory

"definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Dividend financial

"Stock Dividend"

A stock dividend is when a company gives its existing shareholders extra shares instead of cash. It’s like receiving more pieces of the same pie rather than a bigger piece of money, which can increase the number of shares you own but usually doesn’t change the total value of your investment right away. Investors care about it because it can signal the company's growth and affect the stock’s price.

FAQ

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

How many FNRN shares is Mark C. Schulze proposing to sell?

Mark C. Schulze, a director, gave notice of a proposed sale of 2,500 common shares, with an aggregate market value of $40,995.00 and an approximate sale date of November 3, 2026. Raymond James is named as the broker, and NASDAQ is listed as the exchange. The remarks identify a Rule 10b5-1(c) trading plan adopted August 18, 2026.

What prior FNRN sales did Mark C. Schulze report?

The reported sales were 3,000 shares and $55,053.71 on August 4, 2026; 232 shares and $4,227.96 on August 5; 400 shares and $7,217.42 on August 6; 2,250 shares and $38,528.55, plus 3,000 shares and $50,751.15, on August 10; and 1,118 shares and $19,391.72 on August 11.

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

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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	0001700166
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	FIRST NORTHERN COMMUNITY BANCORP
SEC File Number	001-43244
Address of Issuer	195 N FIRST STREET DIXON CALIFORNIA 95620
Phone	7076783041
Name of Person for Whose Account the Securities are To Be Sold	Schulze Mark
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	Director

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	Raymond James 880 Carillon Parkway St. Petersburg FL 33716	2500	40995.00	16289307	11/03/2026	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	05/19/2024	Stock Dividend	First Northern Community Bancorp			30715	05/19/2024	Stock Dividend

* 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
Mark C Schulze 195 N 1st Street Dixon CA 95620	Common	08/04/2026	3000	55053.71
Mark C Schulze 195 N 1st Street Dixon CA 95620	Common	08/05/2026	232	4227.96
Mark C Schulze 195 N 1st Street Dixon CA 95620	Common	08/06/2026	400	7217.42
Mark C Schulze 195 N 1st Street Dixon CA 95620	Common	08/10/2026	2250	38528.55
Mark C Schulze 195 N 1st Street Dixon CA 95620	Common	08/10/2026	3000	50751.15
Mark C Schulze 195 N 1st Street Dixon CA 95620	Common	08/11/2026	1118	19391.72

144: Remarks and Signature

Remarks	The reported transaction(s) occurred pursuant to a trading plan intended to comply with Rule 10b5-1(c) and adopted by the reporting person on August 18, 2026.
Date of Notice	11/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/18/2026
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	/s/ Mark C. Schulze
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)