[Form 4] SIERRA BANCORP Insider Trading Activity

Rhea-AI Filing Summary

Sierra Bancorp executive Hugh F. Boyle, EVP/Chief Credit Officer, reported stock transactions on a Form 4 related to equity compensation. On 11/16/2025 and 11/18/2025, the company withheld 673, 596, and 2,216 shares of common stock, respectively, to cover tax obligations from vesting restricted stock and performance awards. Following these transactions, Boyle directly owned 29,811 shares of Sierra Bancorp common stock. The filing also notes that from a prior performance award granted in 2022, 915 excess performance shares were not earned and were forfeited on 11/18/2025 because remaining performance criteria were not achieved.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Boyle Hugh F

Role EVP/Chief Credit Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	596	$28.59	$17K
Tax Withholding	Common Stock	2,216	$28.59	$63K
Tax Withholding	Common Stock	673	$29.38	$20K

Holdings After Transaction: Common Stock — 32,027 shares (Direct)

Footnotes (1)

1. Withholding of shares of common stock to satisfy tax withholding obligations in connection with the vesting of previously awarded shares of restricted stock. Withholding of shares of common stock to satisfy tax withholding obligations in connection with the vesting of previously awarded shares of restricted stock. The performance awards issued on November 18, 2022, included 3,517 target shares and 1,759 excess shares for exceeding performance targets. The performance awards vesting on November 18, 2025, included 844 shares of the 1,759 total excess performance shares granted. The remaining 915 shares of excess performance awards granted were not earned and did not vest because the remaining performance criteria were not achieved and thus, those 915 shares were forfeited on November 18, 2025.

Form 4 Insider Transactions: What Each Field Means →

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
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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^*

Boyle Hugh F

(Last) (First) (Middle)

86 NORTH MAIN STREET

(Street)

PORTERVILLE CA 93257

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SIERRA BANCORP [ BSRR ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP/Chief Credit Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/16/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	11/16/2025		F		673(1)	D	$29.38	32,623	D
Common Stock	11/18/2025		F		596(2)	D	$28.59	32,027	D
Common Stock	11/18/2025		F		2,216(3)	D	$28.59	29,811	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. Withholding of shares of common stock to satisfy tax withholding obligations in connection with the vesting of previously awarded shares of restricted stock.

2. Withholding of shares of common stock to satisfy tax withholding obligations in connection with the vesting of previously awarded shares of restricted stock.

3. The performance awards issued on November 18, 2022, included 3,517 target shares and 1,759 excess shares for exceeding performance targets. The performance awards vesting on November 18, 2025, included 844 shares of the 1,759 total excess performance shares granted. The remaining 915 shares of excess performance awards granted were not earned and did not vest because the remaining performance criteria were not achieved and thus, those 915 shares were forfeited on November 18, 2025.

	Hugh F Boyle	11/19/2025
	** Signature of Reporting Person	Date
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