First Northern director Schulze sells 2,000 shares

The director’s reported trades were made under a Rule 10b5-1(c) plan adopted August 18, 2026.

Available on EDGAR 11/05/2026 - 08:24 PM EST Accepted by SEC EDGAR 11/05/2026 - 08:23 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

First Northern Community Bancorp director Mark C. Schulze reported selling 2,000 common shares on November 3, 2026, at a weighted average price of $17.4990 per share; prices ranged from $17.49 to $17.53. He also reported selling 500 shares on November 4, 2026, at $17.9900 per share. Both sales were made pursuant to a Rule 10b5-1(c) trading plan adopted August 18, 2026.

Insider Trade Summary 10b5-1

Net Seller: 2,500 shares

Net Sell 2 txns

Insider Schulze Mark C

Role Director

Sold 2,500 shs ($44K)

Type	Security	Shares	Price	Value
Sale	Common F2	500	$17.99	$9K
Sale	Common F2, F1	2,000	$17.499	$35K

Holdings After Transaction: Common — 727,421 shares (Direct)

Footnotes (2)

1. F1. The price shown in column 4 is a weighted average price. The trade prices ranged from $17.49 to $17.53. Detailed price listing available upon request.
2. F2. 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.

Key Figures

Shares sold: 2,000 shares Weighted average sale price: $17.4990 per share Trade price range: $17.49 to $17.53 +3 more

6 metrics

Shares sold 2,000 shares November 3, 2026

Weighted average sale price $17.4990 per share November 3, 2026; trade prices ranged from $17.49 to $17.53

Trade price range $17.49 to $17.53 November 3, 2026

Shares sold 500 shares November 4, 2026

Sale price $17.9900 per share November 4, 2026

Trading plan adoption date August 18, 2026 Rule 10b5-1(c) trading plan

Key Terms

Rule 10b5-1(c), weighted average price, open market or private transaction

3 terms

Rule 10b5-1(c) regulatory

"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.

weighted average price financial

"The price shown 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.

open market or private transaction financial

"Sale in open market or private transaction"

FAQ

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

How many shares did FNRN director Mark C. Schulze sell, and at what prices?

Mark C. Schulze reported selling 2,000 common shares on November 3, 2026, at a weighted average of $17.4990 per share, with trade prices ranging from $17.49 to $17.53. He reported selling 500 shares on November 4, 2026, at $17.9900 per share.

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

Form 4 Insider Transactions: What Each Field Means →

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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

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

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^*

Schulze Mark C

(Last) (First) (Middle)

195 N 1ST STREET

(Street)

DIXON CALIFORNIA 95620

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FIRST NORTHERN COMMUNITY BANCORP [ FNRN ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/03/2026

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

X	Form filed by One Reporting Person
	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	11/03/2026		S(2)		2,000	D	$17.499(1)	727,921	D
Common	11/04/2026		S(2)		500	D	$17.99	727,421	D

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

Explanation of Responses:

1. The price shown in column 4 is a weighted average price. The trade prices ranged from $17.49 to $17.53. Detailed price listing available upon request.

2. 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.

	/s/ Devon Camara-Soucy	11/05/2026
	** 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)