[Form 4] FIRST NORTHERN COMMUNITY BANCORP Insider Trading Activity

First Northern Community Bancorp director Mark C. Schulze sold shares in the bank’s stock.

Rhea-AI Filing Summary

First Northern Community Bancorp director Mark C. Schulze sold shares in the bank’s stock. On May 8, 2026, he executed an open-market sale of 3,000 shares of common stock at an average price of $17.7805 per share. After this transaction, he directly holds 741,921 shares, so the sale represents only a small portion of his overall reported stake.

Insights

Bank equity analyst

Small open-market sale, insider retains sizable position.

Director Mark C. Schulze completed an open-market sale of 3,000 shares of FIRST NORTHERN COMMUNITY BANCORP common stock at $17.7805 per share on May 8, 2026. This is a straightforward disposition, not tied to derivatives or complex structures.

Following the sale, he directly holds 741,921 shares, indicating that only a minor fraction of his reported holdings was sold. With no derivative positions listed and no 10b5-1 or similar footnote detail provided in the excerpt, this appears as a routine portfolio move based on the available data.

Insider Trade Summary

Net Seller: 3,000 shares

Net Sell 1 txn

Insider Schulze Mark C

Role Director

Sold 3,000 shs ($53K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,000	$17.7805	$53K

Holdings After Transaction: Common Stock — 741,921 shares (Direct)

Key Figures

Shares sold: 3,000 shares Sale price: $17.7805 per share Shares held after sale: 741,921 shares +1 more

4 metrics

Shares sold 3,000 shares Open-market sale of common stock on May 8, 2026

Sale price $17.7805 per share Average price for the 3,000 shares sold

Shares held after sale 741,921 shares Director’s direct holdings following the transaction

Net buy/sell shares 3,000 shares sold Net directional change from transactionSummary

Key Terms

open-market sale, Common Stock, transaction code "S", Form 4

4 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

""security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

transaction code "S" financial

""transaction_code": "S""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

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

What insider transaction did First Northern Community Bancorp (FNRN) report?

First Northern Community Bancorp reported that director Mark C. Schulze executed an open-market sale of 3,000 shares of common stock. The trade occurred on May 8, 2026 at an average price of $17.7805 per share, according to the Form 4 data.

How many First Northern Community Bancorp (FNRN) shares did the director sell and at what price?

Director Mark C. Schulze sold 3,000 shares of First Northern Community Bancorp common stock. The reported average sale price was $17.7805 per share in an open-market transaction dated May 8, 2026, as disclosed in the insider Form 4 filing.

How many First Northern Community Bancorp (FNRN) shares does Mark C. Schulze hold after the sale?

After selling 3,000 shares, director Mark C. Schulze directly holds 741,921 shares of First Northern Community Bancorp common stock. This post-transaction ownership figure comes from the Form 4 and shows he retains a substantial reported stake in the company.

Was the First Northern Community Bancorp (FNRN) insider trade an open-market sale?

Yes, the Form 4 describes the transaction as an open-market sale of First Northern Community Bancorp common stock. The transaction code is “S,” and the narrative labels it as an open-market sale at an average price of $17.7805 per share on May 8, 2026.

Did the First Northern Community Bancorp (FNRN) director’s sale involve derivatives or options?

The reported transaction for director Mark C. Schulze involved only non-derivative common stock. The derivativeSummary section in the data is empty, indicating no listed option exercises, conversions, or other derivative trades associated with this specific Form 4 transaction.

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

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Accepted by SEC EDGAR 05/11/2026 - 07:46 PM EDT Learn about SEC filing dates

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).

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)
05/08/2026

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 Stock	05/08/2026		S		3,000	D	$17.7805	741,921	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:

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