Plumas Bancorp exec exercises 1,600 options

EVP and CIO Aaron M. Boigon exercised 1,600 PLBC stock options at $21.45, raising his direct common stock holdings to 9,700 shares.

Rhea-AI Filing Summary

PLUMAS BANCORP (PLBC) reports that EVP and Chief Information Officer Aaron M. Boigon exercised stock options for 1,600 shares of common stock on September 17, 2026 at an exercise price of $21.45 per share. The exercised options converted into 1,600 shares of common stock held directly, with total direct common stock holdings increasing to 9,700 shares.

The option exercise reduced the reported option position linked to this grant to 4,000 options remaining after the transaction. The options, which were exercisable in four equal annual installments beginning October 21, 2020, carry an expiration date of October 21, 2027. No Rule 10b5-1 trading plan is reported for these transactions.

Insider Trade Summary

1,600 shares exercised/converted

Exercise 2 txns

Insider Boigon Aaron M.

Role EVP, Chief Information Officer

Type	Security	Shares	Price	Value
Exercise	Option to buy common stock F1	1,600	$0.00	$0.00
Exercise	Common Stock	1,600	$21.45	$34K

Holdings After Transaction: Option to buy common stock — 4,000 contracts (Direct); Common Stock — 9,700 shares (Direct)

Footnotes (1)

1. F1. Exercisable in four (4) equal annual installments beginning October 21, 2020.

Key Figures

Options exercised: 1,600 shares Exercise price: $21.45 per share Common shares after transaction: 9,700 shares +2 more

5 metrics

Options exercised 1,600 shares Stock options exercised by Aaron M. Boigon on September 17, 2026

Exercise price $21.45 per share Exercise price for 1,600 PLBC options converted to common stock

Common shares after transaction 9,700 shares Direct PLBC common stock holdings following the option exercise

Options remaining 4,000 options Option position in this grant after the 1,600-share exercise

Option expiration date October 21, 2027 Expiration date of the option grant from which 1,600 options were exercised

Key Terms

Exercise or conversion of derivative security, Option to buy common stock, Rule 10b5-1, Derivative security

4 terms

Exercise or conversion of derivative security financial

"Transaction code M is described as Exercise or conversion of derivative security"

Option to buy common stock financial

"The derivative security is titled Option to buy common stock"

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for these transactions"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Derivative security financial

"Exercise or conversion of derivative security relates to the option grant"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

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

What insider transaction did PLBC executive Aaron M. Boigon report on this Form 4?

Aaron M. Boigon reported exercising stock options for 1,600 shares of PLUMAS BANCORP common stock on September 17, 2026, converting options with an exercise price of $21.45 per share into directly held common shares.

How many PLBC common shares does Aaron M. Boigon hold after this transaction?

Following the option exercise, Aaron M. Boigon directly holds 9,700 shares of PLUMAS BANCORP common stock, as reported in the Form 4 for the transaction dated September 17, 2026.

What was the exercise price of the PLBC options exercised by Aaron M. Boigon?

The options exercised by Aaron M. Boigon had an exercise price of $21.45 per share, resulting in the acquisition of 1,600 PLUMAS BANCORP common shares upon exercise on September 17, 2026.

How many PLBC stock options related to this grant remain after the exercise?

After exercising 1,600 options, the reported remaining option position from this grant is 4,000 options, as shown by the total derivative securities following the transaction on the Form 4.

Were the PLBC insider transactions made under a Rule 10b5-1 trading plan?

No. The Form 4 for PLUMAS BANCORP indicates the Rule 10b5-1 checkbox is not marked, so no Rule 10b5-1 trading plan is reported in connection with these transactions.

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

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Available on EDGAR 09/17/2026 - 11:46 AM Accepted by SEC EDGAR 09/17/2026 - 11:46 AM 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^*

Boigon Aaron M.

(Last) (First) (Middle)

958 PINE FOREST DRIVE

(Street)

SPARKS NEVADA 89441

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PLUMAS BANCORP [ PLBC ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Chief Information Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

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	09/17/2026		M		1,600	A	$21.45	9,700	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
Option to buy common stock	$21.45	09/17/2026		M			1,600	(1)	10/21/2027	Common stock	1,600	$0	4,000	D

Explanation of Responses:

1. Exercisable in four (4) equal annual installments beginning October 21, 2020.

	/s/ Aaron M. Boigon	09/17/2026
	** 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)