# EDGAR Filing Document

**Accession Number:** 0001130144
**File Stem:** 0001104659-25-102359
**Filing Date:** 2025-10
**Character Count:** 72907
**Document Hash:** 99117c6b846347edb8a0721bcd35b9e3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-102359.hdr.sgml**: 20251027

**ACCESSION NUMBER**: 0001104659-25-102359

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20251027

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20251027

**DATE AS OF CHANGE**: 20251027

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SIERRA BANCORP
- **CENTRAL INDEX KEY:** 0001130144
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 330937517
- **STATE OF INCORPORATION:** CA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-33063
- **FILM NUMBER:** 251417673

**BUSINESS ADDRESS:**
- **STREET 1:** 86 NORTH MAIN STREET
- **CITY:** PORTERVILLE
- **STATE:** CA
- **ZIP:** 93257
- **BUSINESS PHONE:** 5597824900

**MAIL ADDRESS:**
- **STREET 1:** 86 NORTH MAIN STREET
- **CITY:** PORTERVILLE
- **STATE:** CA
- **ZIP:** 93257

?xml version='1.0' encoding='ASCII'? SIERRA BANCORP_October 27, 2025

------

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**Form 8-K**

**CURRENT REPORT**

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) **October 27, 2025**

## SIERRA BANCORP
(Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **California** | **000-33063** | **33-0937517** |
| (State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.) |

---

---

| | |
|:---|:---|
| **86 North Main Street, Porterville, CA 93257** | **86 North Main Street, Porterville, CA 93257** |
| (Address of principal executive offices) | (Zip code) |

---

**(559) 782-4900**

(Registrant's telephone number including area code)

**Not applicable**

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock, no par value | BSRR | NASDAQ Global Select Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

------

**ITEM 2.02** **RESULTS OF OPERATIONS AND FINANCIAL CONDITION**

On October 27, 2025, Sierra Bancorp issued a press release announcing its unaudited consolidated financial results for the three- and nine-month periods ended September 30, 2025. A copy of the press release is attached as Exhibit 99.1 to this Current Report.

The information in this report (including Exhibit 99.1) is being furnished pursuant to Item 2.02 and shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed to be incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act.

**ITEM 9.01** **FINANCIAL STATEMENTS AND EXHIBITS**

**(d)** **Exhibits.** The information required to be furnished pursuant to this item is set forth in the Exhibit Index which appears below, immediately before the signatures.

**EXHIBIT INDEX**

---

| | | |
|:---|:---|:---|
| **Exhibit No.** |  | **Description** |
| 99.1 |  | [Press release issued by Sierra Bancorp dated October 27, 2025](bsrr-20251027xex99d1.htm) |
| 104 |  | Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101) |

---

**SIGNATURES**

Pursuant to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | |
|:---|:---|
|  | &nbsp;&nbsp;<br>Executive Vice President &<br>Chief Financial Officer<br>|
| &nbsp;&nbsp;<br>Dated: October 27, 2025 | &nbsp;&nbsp;SIERRA BANCORP<br>By: */s/ Christopher G. Treece* <br>Christopher G. Treece<br>Executive Vice President &<br>Chief Financial Officer |

---

## Exhibit 99.1

**Exhibit 99.1**

![Graphic](bsrr-20251027xex99d1001.jpg)

#### FOR IMMEDIATE RELEASE

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;Date: | October 27, 2025 |
| &nbsp;&nbsp;&nbsp;&nbsp;Contact: | Kevin McPhaill, President/CEO |
| &nbsp;&nbsp;&nbsp;&nbsp;Phone: | (559) 782-4900 or (888) 454-BANK |
| &nbsp;&nbsp;&nbsp;&nbsp;Website Address: | www.sierrabancorp.com |

---

#### SIERRA BANCORP REPORTS FINANCIAL RESULTS FOR THIRD QUARTER AND FIRST NINE MONTHS OF 2025
PORTERVILLE, CALIF. – (BUSINESS WIRE) **–** Sierra Bancorp (Nasdaq: BSRR), parent of Bank of the Sierra, today announced its unaudited financial results for the three- and nine-month periods ended September 30, 2025. Sierra Bancorp reported consolidated net income of $9.7 million, or $0.72 per diluted share, for the third quarter of 2025, a decrease of $0.9 million, or 9%, as compared to the second quarter of 2025. In addition, the Company reported consolidated net income of $29.4 million for the first nine months of 2025, a decrease of $0.8 million, or 3%, as compared to the same period in 2024. Diluted earnings per share for the nine-month period ended September 30, 2025, increased to $2.15 from $2.09 for the same period in 2024, an increase of 3%, due mostly to continued stock repurchases through 2025.

Highlights for the third quarter of 2025:

● **Improved Net Interest Income and Efficiency** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Net interest margin increased to 3.78%, as compared to 3.68% in the prior linked quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Net interest income grew by $1.3 million, or 4%, as compared to the prior linked quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Loan yield improved to 5.36%, as compared to 5.27% in the prior linked quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Maintained low cost of funds at 1.45%, a decrease of four basis points from the prior linked quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Improved efficiency ratio to 58.0%, as compared to 59.4% in the prior linked quarter.

● **Solid Asset Quality** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Total nonperforming loans to total gross loans ratio improved to 0.56%, as compared to 0.62% in the prior linked quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Loans past due 30-89 days and still accruing fell to $0.2 million, or one basis point of total loans, an improvement of $2.8 million, or 94.8%, as compared to the prior linked quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Total Classified Loans declined $3.6 million, or 10%, during the quarter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Regulatory Commercial Real Estate Concentration Ratio declined slightly to 242.7% during the quarter.

● **Balance Sheet Growth** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Gross loans increased $57.2 million, or 9% annualized, to $2.5 billion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Customer deposits increased by $13.3 million, or 2% annualized, to $2.7 billion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Total deposits declined during the quarter by $41.7 million primarily due to a proactive $55 million reduction in higher-cost brokered deposits.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Overall deposits have increased $41.1 million, or 2%, annualized, despite a $40 million decline in higher-cost brokered deposits over the same period.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Noninterest-bearing deposits increased slightly to $1.1 billion at September 30, 2025, and represents 37% of total deposits.

● **Strong Capital and Liquidity** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Increased tangible book value (non-GAAP) per share by 3% during the quarter, to $24.66 per share.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Repurchased 190,342 shares of common stock during the quarter at an average price of $30.55.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Declared dividend of $0.25 per share, payable on November 14, 2025, our 107 <sup>th</sup> consecutive quarterly dividend.

------

Sierra Bancorp Financial Results

October 27, 2025

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Regulatory Leverage Ratio of 11.73% at September 30, 2025, for our subsidiary Bank.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Consolidated Tangible Common Equity Ratio (non-GAAP) increased to 9.03%, at September 30, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;o Overall primary and secondary liquidity sources of $2.2 billion, at September 30, 2025.

"*Success is the sum of small efforts, repeated day in and day out."* - Robert Collier

"Through the first three quarters of 2025, we have taken advantage of several opportunities and risen to meet many challenges," noted Kevin McPhaill, President and Chief Executive Officer. "Our loan portfolio and strong customer base have continued to grow, despite a difficult interest rate environment, certain episodic credit issues, persisting inflation concerns, and an uncertain employment outlook. For the first nine months of 2025, we increased earnings per share over the same period in 2024 while improving both margin and efficiency. We also continue to have a high level of noninterest income relative to peers. I am immensely proud of our team and their commitment to consistent and strong earnings. As we move into the final quarter of 2025, we are excited about the remainder of the year and believe our team and our balance sheet give us reasons to look forward to 2026 and beyond!"

For the first nine months of 2025, the Company recorded net income of $29.4 million, or $2.15 earnings per diluted share, as compared to $30.2 million, or $2.09 earnings per diluted share, for the same period in 2024. The increase in diluted earnings per share is due mostly to the repurchase of 802,753 shares during the past nine months. The year-over-year decrease in net income was due primarily to a provision for credit losses of $7.0 million, an increase of $4.6 million compared to the prior year-to-date period, and a $0.8 million decrease in noninterest income. These unfavorable variances were partially offset by an increase of $3.1 million in net interest income and a $0.2 million decrease in noninterest expense. The Company's financial performance metrics for the first nine months of 2025 include an annualized return on average assets and a return on average equity of 1.07% and 11.11%, respectively, compared to 1.11% and 11.67%, respectively, for the same period in 2024.

**Financial Highlights**

**Quarterly Changes (comparisons to the third quarter of 2024)**

● Net income decreased 9%, or $0.9 million, to $9.7 million due to higher provision for credit losses on loans, partially offset by a $1.2 million increase in net interest income.

● Pre-tax pre-provision for credit losses income (see non-GAAP financial measures table) increased $0.6 million, or 4%, to $16.4 million.

● The $1.2 million increase in net interest income was driven by a 12 basis point increase in net interest margin that was caused by a 27 basis point decrease in cost of funds.

● Noninterest income was $0.3 million higher than the comparative period, with increases in Bank-Owned Life Insurance (BOLI) income, partially offset by decreases in service charges on deposit accounts.

● Noninterest expense was $0.8 million higher in the third quarter over the same quarter last year due to an increase in salaries and benefits and occupancy costs.

● Included in the line-item changes from the third quarter of 2024 was the increase of $0.3 million in income from corporate-owned life insurance income invested to offset the $0.3 million increase in deferred compensation costs.

**Linked Quarter Income Changes (comparisons to the three months ended June 30, 2025)**

● Net income decreased by $0.9 million, or 9%, driven mostly by a $2.5 million increase in provision for credit losses on loans, partially offset by a $1.3 million increase in net interest income.

● Net interest income increased by $1.3 million, due to an 8 basis point increase in the yield of interest-earning assets combined with an increase in the average balance of interest-earning assets. There was a 5 basis point

------

Sierra Bancorp Financial Results

October 27, 2025

favorable decrease in cost of funds but the impact of that was mostly offset by a decrease in the average balance of interest-bearing liabilities.

● Included in the line-item changes from the second quarter of 2025 was the decrease of $0.4 million in income from corporate-owned life insurance income invested to offset the $0.5 million decrease in deferred compensation costs.

**Year-to-Date Income Changes (comparisons to the first nine months of 2024)**

● Net income decreased $0.8 million, or 3%. The decrease was primarily driven by an increase of $4.6 million in provision for credit losses. This decline was partially offset by an increase of $3.1 million in net interest income, due mostly to a 25 basis point decrease in the cost of interest-bearing liabilities. A favorable decrease in the cost of interest-bearing deposits of 29 basis points and decreases in the average balances of those deposits had the biggest impact on the increase in net interest income. While the Company experienced lower yields and balances on investments, this was mostly offset by increases in yields and balances on loans. Noninterest income decreased by $0.8 million and noninterest expense decreased by $0.2 million.

● Pre-tax pre-provision for credit losses income (see non-GAAP financial measures table) increased $2.5 million, or 6%, to $46.2 million.

● The provision for credit losses was $7.0 million, an increase of $4.6 million, primarily due to an increase in individual reserves during the third quarter of 2025, due to a single agricultural production property.

● Noninterest income decreased by $0.8 million, or 3%, driven by the net $0.6 million gain from the balance sheet restructuring at the beginning of 2024, with no similar transaction in 2025, and a $0.6 million decrease in service charges and fees on deposit accounts. Partially offsetting these unfavorable variances was a $0.8 million gain on life insurance during the first nine months of 2025.

● Noninterest expense decreased $0.2 million, due mostly to decreases in professional services and lower fraud and debit card losses, partially offset by increases in salaries and benefits and occupancy costs.

● Included in the line-item changes from the same period in 2024 was the decrease of $0.5 million in income from corporate-owned life insurance income invested to offset the $0.5 million decrease in deferred compensation costs.

**Statement of Condition Changes (comparisons to December 31, 2024)** 

● Total assets increased by $95.1 million, or 3%, to $3.7 billion, during the first nine months of the year due primarily to increases in loan balances, partially offset by decreases in investment securities.

● Gross loans held at amortized cost increased $160.4 million, due mostly to a $126.3 million increase in mortgage warehouse line utilization, as well as $46.8 million of growth in commercial real estate loans, a $7.9 million increase in other construction loans, and a $7.6 million increase in other commercial loans. This favorable growth was partially offset by decreases of $18.2 million in residential real estate loans, $9.7 million in farmland, and $0.4 million in consumer loans.

● Deposits totaled $2.9 billion at September 30, 2025, representing a year-to-date increase of $41.1 million, or 1%. The growth in deposits came mostly from a $65.7 million increase in noninterest-bearing deposits and a $60.6 million increase in interest-bearing demand deposits. The increases were partially offset by decreases in customer time deposits and brokered deposits of $57.3 million and $40.0 million, respectively.

● Other borrowings increased $71.9 million, from an increase in overnight borrowings of $55.0 million and customer repurchase agreements of $16.9 million.

------

Sierra Bancorp Financial Results

October 27, 2025

Other financial highlights are reflected in the following table.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **FINANCIAL HIGHLIGHTS** |  |  |  |  |  |
| (Dollars in Thousands, Except Per Share Data, Unaudited) |  |  |  |  |  |
|  | **As of or for the** | **As of or for the** | **As of or for the** | **As of or for the** | **As of or for the** |
|  | **three months ended** | **three months ended** | **three months ended** | **nine months ended**  | **nine months ended**  |
|  | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Net income | $9699 | $10633 | $10603 | $29433 | $30196 |
| Diluted earnings per share | $0.72 | $0.78 | $0.74 | $2.15 | $2.09 |
| Return on average assets | 1.04% | 1.16% | 1.14% | 1.07% | 1.11% |
| Return on average equity | 10.81% | 12.08% | 11.95% | 11.11% | 11.67% |
| Net interest margin (tax-equivalent) <sup>(1)</sup> | 3.78% | 3.68% | 3.66% | 3.73% | 3.66% |
| Yield on average loans | 5.36% | 5.27% | 5.25% | 5.30% | 5.11% |
| Yield on investments | 4.73% | 4.68% | 5.42% | 4.74% | 5.52% |
| Cost of average total deposits <sup>(3)</sup> | 1.30% | 1.30% | 1.62% | 1.31% | 1.51% |
| Cost of funds <sup>(3)</sup> | 1.45% | 1.49% | 1.72% | 1.47% | 1.66% |
| Efficiency ratio (tax-equivalent) <sup>(1) (2)</sup> | 58.05% | 59.43% | 58.38% | 59.32% | 61.07% |
| Total assets | $3709377 | $3770302 | $3696154 | $3709377 | $3696154 |
| Loans net of deferred fees | $2491788 | $2434609 | $2321025 | $2491788 | $2321025 |
| Noninterest demand deposits | $1072927 | $1065742 | $1013743 | $1072927 | $1013743 |
| Total deposits | $2932760 | $2974469 | $2962159 | $2932760 | $2962159 |
| Noninterest-bearing deposits over total deposits | 36.6% | 35.8% | 34.2% | 36.6% | 34.2% |
| Shareholders' equity / total assets | 9.71% | 9.43% | 9.70% | 9.71% | 9.70% |
| Tangible common equity ratio <sup>(2)</sup> | 9.03% | 8.77% | 9.01% | 9.03% | 9.01% |
| Book value per share | $26.70 | $26.00 | $24.88 | $26.70 | $24.88 |
| Tangible book value per share <sup>(2)</sup> | $24.66 | $23.98 | $22.93 | $24.66 | $22.93 |
| Community bank leverage ratio (subsidiary bank) | 11.73% | 11.75% | 11.70% | 11.73% | 11.70% |
| Tangible common equity ratio (subsidiary bank) <sup>(2)</sup> | 11.08% | 10.77% | 10.90% | 11.08% | 10.90% |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Computed on a tax equivalent basis utilizing a federal income tax rate of 21%.

&nbsp;&nbsp;&nbsp;&nbsp;(2) See reconciliation of non-GAAP financial measures to the corresponding GAAP measurement in "Non-GAAP Financial Measures."

&nbsp;&nbsp;&nbsp;&nbsp;(3) Includes noninterest bearing deposits.

**INCOME STATEMENT HIGHLIGHTS**

**Net Interest Income**

Net interest income was $32.0 million for the third quarter of 2025, a $1.2 million increase, or 4%, over the third quarter of 2024, and increased $3.1 million, or 3%, to $92.7 million for the first nine months of 2025 relative to the same period in 2024.

For the third quarter of 2025, there was a 35 basis point decrease in the cost of our interest-bearing liabilities combined with a $17.9 million decrease in the average balance of interest-bearing liabilities. Although the balance of average interest-earning assets was $7.2 million higher, the yield was 13 basis points lower as compared to the same period in 2024, which partially offset the favorable variances on the liability side.

Net interest income for the comparative year-to-date periods increased $3.1 million, or 3%, due primarily to a decrease of 25 basis points in the cost of funds of average interest-bearing liabilities combined with an increase in the average balance of interest-earnings assets of $43.5 million. There was a $193.8 million, or 9%, increase in average loan balances, yielding 19 basis points higher for the same period, while average investment balances decreased $150.3 million, yielding 78 basis points lower for the same period. The decline in average investment balances was mostly due to calls of collateralized loan obligations in 2025. Average interest-bearing liabilities decreased $4.9 million, mostly in higher cost customer time deposits and brokered deposits, offset by an increase in interest-bearing demand deposits and borrowed funds. The cost of

------

Sierra Bancorp Financial Results

October 27, 2025

interest-bearing liabilities was 25 basis points lower for the comparative periods. The favorable net impact of the mix and rate change was a 7 basis point increase in our net interest margin for the nine months ending September 30, 2025, as compared to the same period in 2024.

Interest expense was $12.0 million for the third quarter of 2025, a decrease of $2.0 million, relative to the third quarter of 2024. For the first nine months of 2025, compared to the same period in 2024, interest expense decreased $4.2 million to $35.4 million. The decrease in interest expense for the first nine months of 2025, as compared to the same period in 2024, was attributable to a decrease in higher cost customer time deposits and brokered deposits, along with a net overall interest rate decrease in customer deposit account balances. These decreases were partially offset by increases in other borrowed funds. For the first nine months of 2025, compared to the same period in 2024, the average balance of higher cost customer time deposits and brokered deposits decreased $78.6 million, while low to no cost transaction account balances increased $93.6 million and borrowed funds increased $16.3 million.

Net interest margin was 3.78% for the third quarter of 2025, as compared to 3.68% for the linked quarter, and 3.66% for the third quarter of 2024. While the yield of interest-earning assets increased eight basis points for the third quarter of 2025 as compared to the linked quarter, the cost of interest-bearing liabilities decreased five basis points for the same comparative period. The average balance of interest-earning assets increased $5.6 million for the linked quarter, while the increase in interest-bearing liabilities was $2.1 million for the same period.

**Provision for Credit Losses**

The provision for credit losses on loans was $3.7 million for the third quarter of 2025, as compared to $1.2 million in the third quarter of 2024. The year-to-date provision for credit losses on loans was $6.9 million in 2025, as compared to $2.3 million for the same period in 2024. The $2.5 million increase in the provision for credit losses on loans in the third quarter of 2025, as compared to the third quarter of 2024, and the $4.6 million year-to-date increase in the provision for credit losses on loans, compared to the same period in 2024, was primarily due to the third quarter of 2025 addition of $3.5 million in individual reserves, mostly related to a single agricultural production loan. At September 30, 2025, this agricultural production loan had a remaining book balance of $3.5 million with an associated individual reserve of $3.5 million fully offsetting such loan.

There was a benefit for credit losses on unfunded commitments of $20,000 in the third quarter of 2025, and a provision for credit losses on unfunded commitments of $0.1 million for the first nine months of 2025, as compared to a provision for credit losses of $0.1 million in both the third quarter and first nine months of 2024, respectively.

**Noninterest Income**

Total noninterest income increased $0.3 million, or 3%, for the quarter ended September 30, 2025, as compared to the same quarter in 2024, and decreased $0.8 million, or 3%, for the year-to-date period ended September 30, 2025, as compared to the same period in 2024. The year-to-date decline was impacted by a decrease in service charge income on deposit accounts, unfavorable fluctuations in income on Bank-Owned Life Insurance (BOLI) with underlying investments mapped directly to the Company's deferred compensation plan, and a net gain on the balance sheet restructure in early 2024 with no similar transaction in 2025. Offsetting these unfavorable variances was an increase in other income which was related to life insurance proceeds received in 2025 with no like proceeds in 2024.

------

Sierra Bancorp Financial Results

October 27, 2025

The majority of this expense is reported as professional fees under directors' fees as it is related to deferral of past directors' fees. Specifically, $0.4 million for the quarterly comparison, and $0.9 million for the year-to-date comparison, respectively, is reflected as directors' fees as part of the overall professional fees expense line item. The tax benefit of having tax-free earnings with tax-deductible expense was $0.3 million during the third quarter of 2025, and $0.7 million for the first nine months of 2025.

**Noninterest Expense**

Total noninterest expense increased by $0.8 million, or 4%, in the third quarter of 2025, relative to the third quarter of 2024, and decreased by $0.2 million for the first nine months of 2025, as compared to the same period in 2024.

Salaries and Benefits were $0.5 million, or 4%, higher in the third quarter of 2025 as compared to the third quarter of 2024, and $0.8 million higher for the first nine months of 2025, as compared to the same period in 2024. The Company implemented a strategic reorganization at the end of the third quarter of 2025, which resulted in a reduction in force, accompanied by $0.2 million in severance payments. The remaining increase for both the quarter and year-over-year periods was mostly due to a change in composition in the workforce. There were 476 full-time equivalent employees at September 30, 2025, as compared to 494 at June 30, 2025, and 485 at December 31, 2024.

Occupancy expenses increased by $0.2 million for the third quarter and the first nine months of 2025 as compared to the same periods in 2024. The increases in both comparisons were primarily due to increased property taxes related to the updated assessed values of the properties involved in the sale/leaseback transaction in early 2024.

Other noninterest expense was relatively unchanged for the third quarter of 2025, as compared to the third quarter in 2024, and decreased $1.2 million, or 5%, for the first nine months of 2025, as compared to the same period in 2024. For the year-over-year comparison the decrease was primarily driven by decreases in directors' deferred compensation expense and legal and accounting services of $0.5 million and $0.3 million, respectively. The remaining decrease was related to lower data processing costs and reduced debit card losses.

The Company's provision for income taxes was 23.6% of pre-tax income in the third quarter of 2025, relative to 26.4% in the third quarter of 2024, and 24.9% of pre-tax income for the first nine months of 2024, relative to 26.8% for the same period in 2024. The decrease in effective tax rate for both the quarterly and year-to-date comparisons is due to the tax credits, and tax-exempt income representing a larger percentage of total taxable income.

**Balance Sheet Summary**

The $95.1 million, or 3%, increase in total assets during the first nine months of 2025, was primarily a result of a $160.4 million increase in gross loans, partially offset by a $70.0 million decrease in investment securities.

The increase in gross loan balances, as compared to December 31, 2024, was mostly a result of organic growth; a $46.8 million increase in commercial real estate loans, a $7.9 million increase in other construction loans, a $7.6 million increase in other commercial loans, and a favorable change of $126.3 million in mortgage warehouse balances. Counterbalancing these positive loan variances were loan paydowns and maturities resulting in net declines in residential real estate loans, farmland loans, and consumer loans.

As indicated in the loan rollforward table below, new credit extended for the third quarter of 2025 remained flat on a linked-quarter basis, decreased $13.2 million over the same period in 2024, and increased $26.1 million for the year-to-date comparisons. The Company had $121.5 million in loan paydowns and maturities; however, an increase in mortgage warehouse lines of $126.3 million had a positive impact in the first nine months of 2025.

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **LOAN ROLLFORWARD** |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) |  |  |  |  |  |
|  | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
|  | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Gross loans beginning balance | $2434605 | $2306762 | $2234528 | $2331341 | $2090075 |
| New credit extended | 48065 | 48147 | 61239 | 162582 | 136518 |
| Changes in line of credit utilization <sup>(1)</sup> | 2628 | 2587 | 11572 | (6914) | (23768) |
| Change in mortgage warehouse | 50787 | 118665 | 61718 | 126283 | 219778 |
| Pay-downs, maturities, charge-offs and amortization | (44306) | (41556) | (48428) | (121513) | (101974) |
| Gross loans ending balance | $2491779 | $2434605 | $2320629 | $2491779 | $2320629 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;(1) Change does not include new balances on lines of credit extended during the respective periods as such balances are included as part of "New credit extended" line above.

Unused commitments, excluding mortgage warehouse and overdraft lines, were $263.1 million at September 30, 2025, compared to $256.9 million at December 31, 2024. Total line utilization, excluding mortgage warehouse and overdraft lines, was 57.9% at September 30, 2025, and 57.0% at December 31, 2024. Mortgage warehouse utilization increased to 59.4% at September 30, 2025, as compared to 51.2% at December 31, 2024.

Deposit balances reflect growth of $41.1 million, or 1%, during the first nine months of 2025. Core non-maturity deposits increased by $138.4 million, or 7%, while customer time deposits decreased by $57.3 million, or 11%. Wholesale brokered deposits decreased by $40.0 million, or 15%. Overall noninterest-bearing deposits as a percentage of total deposits at September 30, 2025, increased to 36.6%, as compared to 34.8% at December 31, 2024. Other interest-bearing liabilities of $260.7 million on September 30, 2025, consist of $125.7 million in customer repurchase agreements, $25.0 million in overnight fed funds purchased, and $110.0 million of FHLB borrowings.

Overall uninsured deposits are estimated to be approximately $748.1 million, or 26% of total deposit balances, excluding public agency deposits that are subject to collateralization through a letter of credit issued by the FHLB. In addition, uninsured deposits of the Bank's customers are eligible for FDIC pass-through insurance if the customer opens an IntraFi Insured Cash Sweep (ICS) account or a reciprocal time deposit through the Certificate of Deposit Account Registry System (CDARS). IntraFi allows for up to $285 million per customer of pass-through FDIC insurance, which would more than cover each of the Bank's deposit customers if such customer desired to have such pass-through insurance. The Bank maintains a diversified deposit base with no significant customer concentrations and does not bank any cryptocurrency companies. At September 30, 2025, the Company had approximately 117,000 accounts, and the 25 largest deposit balance customers had balances of approximately 11% of overall deposits*.* During the third quarter of 2025, except for seasonal fluctuations in the normal course of business, there has been no material change in the composition of our 25 largest deposit balance customers.

The Company continues to have substantial liquidity. At September 30, 2025, and December 31, 2024, the Company had the following sources of primary and secondary liquidity (Dollars in Thousands, Unaudited):

---

| | | |
|:---|:---|:---|
| **Primary and secondary liquidity sources** | **9/30/2025** | **12/31/2024** |
| Cash and cash equivalents | $95501 | $100664 |
| Unpledged investment securities | 487710 | 552098 |
| Excess pledged securities | 230581 | 242519 |
| FHLB borrowing availability | 623774 | 629134 |
| Unsecured lines of credit | 460785 | 479785 |
| Secured lines of credit | 25000 | 25000 |
| Funds available through fed discount window | 266419 | 298296 |
| **Totals** | $**2189770** | $**2327496** |

---

Total capital of $360.1 million at September 30, 2025, reflects an increase of $2.8 million, or 1%, relative to year-end 2024. The increase in equity during the first nine months of 2025 was due to the addition of $29.4 million in net income,

------

Sierra Bancorp Financial Results

October 27, 2025

a $6.1 million favorable swing in accumulated other comprehensive income, due principally to changes in investment securities' fair value, partially offset by $24.3 million in share repurchases, and $10.3 million in dividends paid. The remaining difference is related to the impact of equity compensation.

**Asset Quality**

Total nonperforming assets, comprised of nonaccrual loans and foreclosed assets, improved with a decline of $3.8 million to $15.8 million for the first nine months of 2025. The Company's ratio of nonperforming loans to gross loans decreased to 0.56% at September 30, 2025, from 0.84% at December 31, 2024. This favorable year-to-date decline resulted from a decrease in non-accrual loan balances, due mostly to the partial charge-off of one agricultural production loan in the second quarter of 2025. All the Company's nonperforming assets are individually evaluated for credit loss quarterly, and management believes the established allowance for credit loss on such loans is appropriate.

During the third quarter of 2025, the Company transferred one commercial real estate loan to other real estate owned (OREO), resulting in a foreclosed asset totaling $1.8 million. While the Company had no OREO assets on its balance sheet prior to this transfer, it has experience managing such assets and maintains established procedures for their resolution.

The Company's allowance for credit losses on loans and leases was $25.2 million at September 30, 2025, as compared to $21.7 million at June 30, 2025, and $24.8 million at December 31, 2024. The increase in the third quarter of 2025 as compared to June 30, 2025, resulted from a $3.5 million increase in specific individual reserves on impaired loans related to a single agricultural production loan. Such agricultural production loan was in the wine grape industry and had a remaining book balance of $3.5 million at September 30, 2025, with a full individual reserve of $3.5 million offsetting such remaining balance. In addition to this loan, the Bank had $19.2 million in outstanding agricultural production loans in the winery and grape industry at September 30, 2025, of which $1.7 million were grapes. Although consumer demand for wine produced in the Central Valley of California has declined, none of the remaining $19.2 million in wine and grape production loans were classified as special mention or substandard.

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Allowance for Credit Losses on Loans by Category** |  |  |  |  |
| (Dollars in Thousands, Unaudited) |  |  |  |  |
|  | **As of September 30, 2025** | **As of September 30, 2025** | **As of September 30, 2025** | **As of September 30, 2025** |
|  | **Balance** | **Total Allowance** | **Percent of Portfolio** | **Coverage Ratio** <sup>(1)</sup> |
| Real estate: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Residential real estate | $364277 | $1400 | 14.62% | 0.38% |
| &nbsp;&nbsp;&nbsp;&nbsp;Commercial real estate | 1404681 | 16511 | 56.37% | 1.18% |
| &nbsp;&nbsp;&nbsp;&nbsp;Other construction/land | 13420 | 282 | 0.54% | 2.10% |
| &nbsp;&nbsp;&nbsp;&nbsp;Farmland | 67860 | 488 | 2.72% | 0.72% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total real estate | 1850238 | 18681 | 74.25% | 1.01% |
| Other Commercial | 185958 | 5880 | 7.46% | 3.16% |
| Mortgage warehouse lines | 452683 | 506 | 18.17% | 0.11% |
| Consumer loans | 2909 | 113 | 0.12% | 3.88% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Total Loans** | $2491788 | $25180 | 100.00% | 1.01% |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **As of June 30, 2025** | **As of June 30, 2025** | **As of June 30, 2025** | **As of June 30, 2025** |
|  | **Balance** | **Total Allowance** | **Percent of Portfolio** | **Coverage Ratio** <sup>(1)</sup> |
| Real estate: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Residential real estate | $371415 | $1694 | 15.26% | 0.46% |
| &nbsp;&nbsp;&nbsp;&nbsp;Commercial real estate | 1392075 | 17083 | 57.17% | 1.23% |
| &nbsp;&nbsp;&nbsp;&nbsp;Other construction/land | 11662 | 252 | 0.48% | 2.16% |
| &nbsp;&nbsp;&nbsp;&nbsp;Farmland | 67967 | 185 | 2.79% | 0.27% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total real estate | 1843119 | 19214 | 75.70% | 1.04% |
| Other Commercial | 186620 | 1907 | 7.67% | 1.02% |
| Mortgage warehouse lines | 401896 | 451 | 16.51% | 0.11% |
| Consumer loans | 2974 | 108 | 0.12% | 3.63% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Total Loans** | $2434609 | $21680 | 100.00% | 0.89% |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **As of December 31, 2024** | **As of December 31, 2024** | **As of December 31, 2024** | **As of December 31, 2024** |
|  | **Balance** | **Total Allowance** | **Percent of Portfolio** | **Coverage Ratio** <sup>(1)</sup> |
| Real estate: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Residential real estate | $382507 | $1808 | 16.41% | 0.47% |
| &nbsp;&nbsp;&nbsp;&nbsp;Commercial real estate | 1357833 | 17051 | 58.24% | 1.26% |
| &nbsp;&nbsp;&nbsp;&nbsp;Other construction/land | 5472 | 92 | 0.23% | 1.68% |
| &nbsp;&nbsp;&nbsp;&nbsp;Farmland | 77547 | 280 | 3.33% | 0.36% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total real estate | 1823359 | 19231 | 78.21% | 1.05% |
| Other Commercial | 178331 | 4829 | 7.65% | 2.71% |
| Mortgage warehouse lines | 326400 | 398 | 14.00% | 0.12% |
| Consumer loans | 3344 | 372 | 0.14% | 11.12% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Total Loans** | $2331434 | $24830 | 100.00% | 1.07% |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;(1) Coverage ratio equals allowance for credit losses on loans divided by amortized cost.

The allowance for credit losses on loans and leases was 1.01% of gross loans at September 30, 2025, and 1.07% of gross loans at December 31, 2024. The largest increase in loan balances was from mortgage warehouse lines, which has the lowest reserve rate in the allowance for credit losses at 0.11%. Mortgage warehouse lines historically have incurred

------

Sierra Bancorp Financial Results

October 27, 2025

nominal losses and, therefore, have a significantly lower reserve than the other categories of loans. As a result, at September 30, 2025, approximately $0.5 million of the allowance for credit losses was attributable to mortgage warehouse lines. The allowance as a percentage of gross loans exclusive of mortgage warehouse lines was 1.21% at September 30, 2025, as compared to 1.04% at June 30, 2025, and 1.22% at December 31, 2024.

The largest loan segment of commercial real estate continues to maintain a coverage ratio at or above 1.18%. As described above, the significant increase in the coverage ratio for other commercial loans was due to an individual reserve on a $3.5 million agricultural production loan.

Management's detailed analysis indicates that the Company's allowance for credit losses on loans and leases should be sufficient to cover credit losses for the life of the loans and leases outstanding as of September 30, 2025, but no assurance can be given that the Company will not experience substantial future losses relative to the size of the loan and lease loss allowance. The Company calculates the allowance for credit losses using a combination of quantitative and qualitative factors applied to loans segmented by call report category.

#### About Sierra Bancorp
Sierra Bancorp is the holding Company for Bank of the Sierra (www.bankofthesierra.com), which is in its 48<sup>th</sup> year of operations.

Bank of the Sierra offers a broad range of retail and commercial banking services through its 35 full-service branches located within the counties of Tulare, Kern, Kings, Fresno, Ventura, San Luis Obispo, and Santa Barbara. The Bank also maintains an online branch and provides specialized lending services through its mortgage warehouse division. In 2025, Bank of the Sierra was recognized as one of the strongest and top-performing community banks in the country, with a 5-star rating from Bauer Financial.

<u>Forward-Looking Statements</u>

*The statements contained in this release that are not historical facts are forward-looking statements based on management's current expectations and beliefs concerning future developments and their potential effects on the Company. Readers are cautioned not to unduly rely on forward looking statements. Actual results may differ from those projected. These forward-looking statements involve risks and uncertainties including but not limited to, the health of the national and local economies, including the impact to the Company and its customers resulting from changes to, and the level of tariffs, inflation, and interest rates; effects of government shutdowns; changes in laws, rules, regulations, or interpretations to which the Company is subject; the Company's ability to maintain and grow its deposit base; loan demand and continued portfolio performance; the Company's ability to attract and retain skilled employees; customers' service expectations; cyber security risks; the Company's ability to successfully deploy new technology; the success of acquisitions and branch expansion; operational risks including the ability to detect and prevent errors and fraud; the effectiveness of the Company's enterprise risk management framework; the impact of adverse developments at other banks, including bank failures, that impact general sentiment regarding the stability and liquidity of banks that could affect stock price; changes to valuations of the Company's assets and liabilities, including the allowance for credit losses, earning assets, and intangible assets; changes to the availability of liquidity sources including borrowing lines and the ability to pledge or sell certain assets; costs related to litigation; the effects of severe weather events, pandemics, other public health crises, acts of war or terrorism, and other external events on our business; and other factors detailed in the Company's SEC filings, including the "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of the Company's most recent Form 10-K and Form 10-Q.*

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **STATEMENT OF CONDITION** |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) |  |  |  |  |  |
| **ASSETS** | **9/30/2025** | **6/30/2025** | **3/31/2025** | **12/31/2024** | **9/30/2024** |
| Cash and due from banks | $95501 | $130012 | $159711 | $100664 | $132797 |
| Investment securities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Available-for-sale, at fair value | 596933 | 668834 | 620288 | 655967 | 706310 |
| &nbsp;&nbsp;&nbsp;&nbsp;Held-to-maturity, at amortized cost, net of allowance for credit losses | 294511 | 298484 | 302123 | 305514 | 308971 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total investment securities | 891444 | 967318 | 922411 | 961481 | 1015281 |
| Real estate loans |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Residential real estate | 363197 | 370348 | 376533 | 381438 | 388169 |
| &nbsp;&nbsp;&nbsp;&nbsp;Commercial real estate | 1407083 | 1394487 | 1382928 | 1360374 | 1338793 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other construction/land | 13503 | 11746 | 7717 | 5458 | 5612 |
| &nbsp;&nbsp;&nbsp;&nbsp;Farmland | 67704 | 67811 | 73061 | 77388 | 80589 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total real estate loans | 1851487 | 1844392 | 1840239 | 1824658 | 1813163 |
| Other commercial | 184756 | 185404 | 180390 | 177013 | 168236 |
| Mortgage warehouse lines | 452683 | 401896 | 283231 | 326400 | 335777 |
| Consumer loans | 2853 | 2913 | 2902 | 3270 | 3453 |
| &nbsp;&nbsp;Gross loans | 2491779 | 2434605 | 2306762 | 2331341 | 2320629 |
| Deferred loan costs (fees) , net | 9 | 4 | (99) | 93 | 396 |
| Allowance for credit losses on loans | (25180) | (21680) | (27050) | (24830) | (22710) |
| &nbsp;&nbsp;Net loans | 2466608 | 2412929 | 2279613 | 2306604 | 2298315 |
| Bank premises and equipment | 15056 | 15285 | 15338 | 15431 | 15647 |
| Other assets | 240768 | 244758 | 229110 | 230091 | 234114 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total assets** | $**3709377** | $**3770302** | $**3606183** | $**3614271** | $**3696154** |
| **LIABILITIES AND CAPITAL** |  |  |  |  |  |
| Noninterest demand deposits | $1072927 | $1065742 | $1037990 | $1007208 | $1013743 |
| Interest-bearing transaction accounts | 635279 | 603294 | 598924 | 587753 | 595672 |
| Savings deposits | 357107 | 352803 | 355325 | 347387 | 356725 |
| Money market deposits | 156255 | 148084 | 143522 | 140793 | 135948 |
| Customer time deposits | 476242 | 514596 | 524173 | 533577 | 550121 |
| Wholesale brokered deposits | 234950 | 289950 | 189950 | 274950 | 309950 |
| &nbsp;&nbsp;Total deposits | 2932760 | 2974469 | 2849884 | 2891668 | 2962159 |
| Repurchase agreements | 125749 | 126509 | 118756 | 108860 | 125534 |
| Long-term debt | 49461 | 49438 | 49416 | 49393 | 49371 |
| Subordinated debentures | 35972 | 35928 | 35883 | 35838 | 35794 |
| Other interest-bearing liabilities | 135000 | 154400 | 80000 | 80000 | 80000 |
| &nbsp;&nbsp;Total deposits and interest-bearing liabilities | 3278942 | 3340744 | 3133939 | 3165759 | 3252858 |
| Allowance for credit losses on unfunded loan commitments | 790 | 810 | 820 | 710 | 640 |
| Other liabilities | 69562 | 73041 | 119668 | 90500 | 83958 |
| Total capital | 360083 | 355707 | 351756 | 357302 | 358698 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total liabilities and capital** | $**3709377** | $**3770302** | $**3606183** | $**3614271** | $**3696154** |

---

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **GOODWILL AND INTANGIBLE ASSETS** |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) |  |  |  |  |  |
|  | **9/30/2025** | **6/30/2025** | **3/31/2025** | **12/31/2024** | **9/30/2024** |
| Goodwill | $27357 | $27357 | $27357 | $27357 | $27357 |
| Core deposit intangible | 132 | 294 | 456 | 618 | 780 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total intangible assets** | $**27489** | $**27651** | $**27813** | $**27975** | $**28137** |
| **CREDIT QUALITY** |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) |  |  |  |  |  |
|  | **9/30/2025** | **6/30/2025** | **3/31/2025** | **12/31/2024** | **9/30/2024** |
| Nonperforming loans | $14006 | $14981 | $18201 | $19668 | $10348 |
| Foreclosed assets | 1839 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total nonperforming assets** | $**15845** | $**14981** | $**18201** | $**19668** | $**10348** |
| Quarterly net charge offs (recoveries)  | $209 | $6580 | $(259) | $215 | $170 |
| Past due and still accruing (30-89) | $187 | $3033 | $3057 | $1348 | $211 |
| Classified loans | $32111 | $35700 | $37265 | $44464 | $29148 |
| Nonperforming loans / gross loans | 0.56% | 0.62% | 0.79% | 0.84% | 0.45% |
| NPA's / loans plus foreclosed assets | 0.64% | 0.62% | 0.79% | 0.84% | 0.45% |
| Allowance for credit losses on loans / gross loans | 1.01% | 0.89% | 1.17% | 1.07% | 0.98% |
| **SELECT PERIOD-END STATISTICS** |  |  |  |  |  |
| (Unaudited) |  |  |  |  |  |
|  | **9/30/2025** | **6/30/2025** | **3/31/2025** | **12/31/2024** | **9/30/2024** |
| Shareholders' equity / total assets | 9.71% | 9.43% | 9.75% | 9.89% | 9.70% |
| Gross loans / deposits | 84.96% | 81.85% | 80.94% | 80.62% | 78.34% |
| Noninterest-bearing deposits / total deposits | 36.58% | 35.83% | 36.42% | 34.83% | 34.22% |

---

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **CONSOLIDATED INCOME STATEMENT** |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
|  | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Interest income | $43937 | $42717 | $44798 | $128108 | $129253 |
| Interest expense | 11969 | 12064 | 14008 | 35374 | 39577 |
| &nbsp;&nbsp;Net interest income | 31968 | 30653 | 30790 | 92734 | 89676 |
| Credit loss expense - loans | 3709 | 1210 | 1240 | 6880 | 2258 |
| Credit loss (benefit) expense - unfunded commitments | (20) | (10) | 120 | 80 | 130 |
| Credit loss benefit - debt securities held-to-maturity | - | - | (1) | - | (1) |
| &nbsp;&nbsp;Net interest income after provision | 28279 | 29453 | 29431 | 85774 | 87289 |
| Service charges and fees on deposit accounts | 6065 | 5855 | 6205 | 17501 | 18114 |
| Net gain (loss) on sale of securities available-for-sale | - | 1 | 73 | 124 | (2810) |
| Net (loss) gain on sale of fixed assets | - | (19) | - | (22) | 3799 |
| Increase in cash surrender value of life insurance | 410 | 343 | 252 | 991 | 733 |
| Earnings on separate account life insurance | 608 | 973 | 288 | 1078 | 1545 |
| Other income | 975 | 1400 | 971 | 3580 | 2628 |
| &nbsp;&nbsp;Total noninterest income | 8058 | 8553 | 7789 | 23252 | 24009 |
| Salaries and benefits | 12827 | 12544 | 12363 | 38375 | 37589 |
| Occupancy expense | 3234 | 3142 | 2995 | 9354 | 9173 |
| Other noninterest expenses | 7574 | 8081 | 7452 | 22090 | 23266 |
| &nbsp;&nbsp;Total noninterest expense | 23635 | 23767 | 22810 | 69819 | 70028 |
| &nbsp;&nbsp;Income before taxes | 12702 | 14239 | 14410 | 39207 | 41270 |
| Provision for income taxes | 3003 | 3606 | 3807 | 9774 | 11074 |
| &nbsp;&nbsp;**Net income** | $**9699** | $**10633** | $**10603** | $**29433** | $**30196** |
| ***TAX DATA*** |  |  |  |  |  |
| Tax-exempt muni income | $1580 | $1577 | $1584 | $4733 | $5164 |
| Interest income - fully tax equivalent | $44357 | $43136 | $45219 | $129366 | $130626 |

---

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **PER SHARE DATA** |  |  |  |  |  |
| (Unaudited) | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
|  | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Basic earnings per share | $0.73 | $0.78 | $0.75 | $2.17 | $2.11 |
| Diluted earnings per share | $0.72 | $0.78 | $0.74 | $2.15 | $2.09 |
| Common dividends | $0.25 | $0.25 | $0.24 | $0.75 | $0.70 |
| Weighted average shares outstanding | 13361594 | 13563910 | 14188051 | 13582194 | 14331032 |
| Weighted average diluted shares | 13470658 | 13637252 | 14335706 | 13674934 | 14437786 |
| Book value per basic share (EOP) | $26.70 | $26.00 | $24.88 | $26.70 | $24.88 |
| Tangible book value per share (EOP) <sup>(1)</sup> | $24.66 | $23.98 | $22.93 | $24.66 | $22.93 |
| Common shares outstanding (EOP) | 13485635 | 13681828 | 14414561 | 13485635 | 14414561 |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) See reconciliation of non-GAAP financial measures to the corresponding GAAP measurement in "Non-GAAP Financial Measures".

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **KEY FINANCIAL RATIOS** |  |  |  |  |  |
| (Unaudited) | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
|  | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Return on average equity | 10.81% | 12.08% | 11.95% | 11.11% | 11.67% |
| Return on average assets | 1.04% | 1.16% | 1.14% | 1.07% | 1.11% |
| Net interest margin (tax-equivalent) <sup>(1)</sup> | 3.78% | 3.68% | 3.66% | 3.73% | 3.66% |
| Efficiency ratio (tax-equivalent) <sup>(1) (2)</sup> | 58.05% | 59.43% | 58.38% | 59.32% | 61.07% |
| Net charge-offs / average loans (not annualized) | 0.01% | 0.27% | 0.01% | 0.27% | 0.14% |

---

&nbsp;&nbsp;&nbsp;&nbsp;(1) Computed on a tax equivalent basis utilizing a federal income tax rate of 21%.

&nbsp;&nbsp;&nbsp;&nbsp;(2) See reconciliation of non-GAAP financial measures to the corresponding GAAP measurement in "Non-GAAP Financial Measures."

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | |
|:---|:---|:---|:---|:---|
| **NON-GAAP FINANCIAL MEASURES** |  |  |  |  |
| (Dollars in Thousands, Unaudited) | **As of:** | **As of:** | **As of:** | **As of:** |
|  |  | **9/30/2025** | **6/30/2025** | **9/30/2024** |
| Total stockholders' equity | $| 360083 | 355707 | 358698 |
| Less: goodwill and other intangible assets |  | 27489 | 27651 | 28137 |
| Tangible common equity | $ | 332594 | 328056 | 330561 |
| Total assets | $| 3709377 | 3770302 | 3696154 |
| Less: goodwill and other intangible assets |  | 27489 | 27651 | 28137 |
| Tangible assets | $ | 3681888 | 3742651 | 3668017 |
| Total stockholders' equity (bank only) | $| 435186 | 430250 | 427762 |
| Less: goodwill and other intangible assets (bank only) |  | 27489 | 27651 | 28137 |
| Tangible common equity (bank only) | $ | 407697 | 402599 | 399625 |
| Total assets (bank only) | $| 3706266 | 3766071 | 3693553 |
| Less: goodwill and other intangible assets (bank only) |  | 27489 | 27651 | 28137 |
| Tangible assets (bank only) | $ | 3678777 | 3738420 | 3665416 |
| Common shares outstanding |  | 13485635 | 13681828 | 14414561 |
| Book value per common share (total stockholders' equity / shares outstanding) | $| 26.70 | 26.00 | 24.88 |
| Tangible book value per common share (tangible common equity / shares outstanding) | $| 24.66 | 23.98 | 22.93 |
| Equity ratio - GAAP (total stockholders' equity / total assets |  | 9.71% | 9.43% | 9.70% |
| Tangible common equity ratio (tangible common equity / tangible assets) |  | 9.03% | 8.77% | 9.01% |
| Tangible common equity ratio (bank only) (tangible common equity / tangible assets) |  | 11.08% | 10.77% | 10.90% |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
| **Efficiency Ratio:** | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Noninterest expense | $23635 | $23767 | $22810 | $69819 | 70028 |
| &nbsp;&nbsp;Divided by: |  |  |  |  |  |
| Net interest income | 31968 | 30653 | 30790 | 92734 | 89676 |
| &nbsp;&nbsp;Tax-equivalent interest income adjustments | 420 | 419 | 421 | 1258 | 1373 |
| Net interest income, adjusted | 32388 | 31072 | 31211 | 93992 | 91049 |
| Noninterest income | 8058 | 8553 | 7789 | 23252 | 24009 |
| &nbsp;&nbsp;Less gain (loss) on sale of securities | - | 1 | 73 | 124 | (2810) |
| &nbsp;&nbsp;Less (loss) gain on sale of fixed assets | - | (19) | - | (22) | 3799 |
| &nbsp;&nbsp;Tax-equivalent noninterest income adjustments | 271 | 350 | 144 | 550 | 606 |
| Noninterest income, adjusted | 8329 | 8921 | 7860 | 23700 | 23626 |
| Net interest income plus noninterest income, adjusted | $40717 | $39993 | $39071 | $117692 | $114675 |
| Efficiency Ratio (tax-equivalent) | 58.05% | 59.43% | 58.38% | 59.32% | 61.07% |
|  | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
|  | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Net income | $9699 | $10633 | $10603 | $29433 | $30196 |
| Add: Provision for income taxes | 3003 | 3606 | 3807 | 9774 | 11074 |
| Add: Provision for credit losses | 3689 | 1200 | 1359 | 6960 | 2387 |
| Pre-tax pre-provision income | $16391 | $15439 | $15769 | $46167 | $43657 |

---

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **NONINTEREST INCOME/EXPENSE** |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) | (Dollars in Thousands, Unaudited) | (Dollars in Thousands, Unaudited) |  |  |  |
|  | **For the three months ended:** | **For the three months ended:** | **For the three months ended:** | **For the nine months ended:**  | **For the nine months ended:**  |
| **Noninterest income:** | **9/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2025** | **9/30/2024** |
| Service charges and fees on deposit accounts | $6065 | $5855 | $6205 | $17501 | $18114 |
| Net gain (loss) on sale of securities available-for-sale |  | 1 | 73 | 124 | (2810) |
| (Loss) gain on sale of fixed assets |  | (19) |  | (22) | 3799 |
| Increase in cash surrender value of life insurance | 410 | 343 | 252 | 991 | 733 |
| Earnings on separate account life insurance | 608 | 973 | 288 | 1078 | 1545 |
| Other | 975 | 1400 | 971 | 3580 | 2628 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total noninterest income | $8058 | $8553 | $7789 | $23252 | $24009 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As a % of average interest-earning assets <sup>(1)</sup> | 0.94% | 1.01% | 0.91% | 0.92% | 0.97% |
| **Noninterest expense:** |  |  |  |  |  |
| Salaries and employee benefits |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Salaries and benefits | $12728 | $12416 | $12286 | $38132 | $37264 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred compensation | 99 | 128 | 77 | 243 | 325 |
| Occupancy and equipment costs | 3234 | 3142 | 2995 | 9354 | 9173 |
| Advertising and marketing costs | 403 | 405 | 381 | 1156 | 1061 |
| Data processing costs | 1518 | 1566 | 1555 | 4582 | 4744 |
| Deposit services costs | 2134 | 2118 | 2150 | 6243 | 6302 |
| Loan services costs |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Loan processing | 173 | 113 | 184 | 425 | 424 |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreclosed assets | 1 | (2) |  | 3 |  |
| Other operating costs | 901 | 1078 | 959 | 2905 | 2980 |
| Professional services costs |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Legal & accounting services | 641 | 419 | 547 | 1712 | 1976 |
| &nbsp;&nbsp;&nbsp;&nbsp;Director's costs | 332 | 309 | 327 | 951 | 1018 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred directors' fees | 438 | 948 | 174 | 942 | 1383 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other professional service | 763 | 711 | 775 | 2180 | 2167 |
| Stationery & supply costs | 102 | 132 | 120 | 335 | 382 |
| Sundry & tellers | 168 | 284 | 280 | 656 | 829 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total noninterest expense | $23635 | $23767 | $22810 | $69819 | $70028 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As a % of average interest-earning assets <sup>(1)</sup> | 2.76% | 2.81% | 2.68% | 2.77% | 2.82% |
| Efficiency ratio (tax-equivalent) <sup>(2)(3)</sup> | 58.05% | 59.43% | 58.38% | 59.32% | 61.07% |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;(1) Annualized

&nbsp;&nbsp;&nbsp;&nbsp;(2) Computed on a tax equivalent basis utilizing a federal income tax rate of 21%.

&nbsp;&nbsp;&nbsp;&nbsp;(3) See reconciliation of non-GAAP financial measures to the corresponding GAAP measurement in "Non-GAAP Financial Measures."

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **AVERAGE BALANCES AND RATES** | **AVERAGE BALANCES AND RATES** | **AVERAGE BALANCES AND RATES** | **AVERAGE BALANCES AND RATES** |  |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) |  |  |  |  |  |  |  |  |  |
|  | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** | **For the quarter ended** |
|  | **9/30/2025** | **9/30/2025** | **9/30/2025** | **6/30/2025** | **6/30/2025** | **6/30/2025** | **9/30/2024** | **9/30/2024** | **9/30/2024** |
|  | **Average Balance** <sup>(1)</sup> | **Income/ Expense** | **Yield/ Rate** <sup>(2)</sup> | **Average Balance** <sup>(1)</sup> | **Income/ Expense** | **Yield/ Rate** <sup>(2)</sup> | **Average Balance** <sup>(1)</sup> | **Income/ Expense** | **Yield/ Rate** <sup>(2)</sup> |
| **Assets** |  |  |  |  |  |  |  |  |  |
| Investments: |  |  |  |  |  |  |  |  |  |
| Federal funds sold/interest-earning due from accounts | $31672 | $329 | 4.12% | $18122 | $211 | 4.67% | $88509 | $1225 | 5.51% |
| Taxable | 731274  | 9104  | 4.94% | 770413  | 9295  | 4.84% | 830054  | 11991  | 5.75% |
| Non-taxable | 196550  | 1580  | 4.04% | 196364  | 1577  | 4.08% | 199261  | 1584  | 4.00% |
| &nbsp;&nbsp;Total investments | 959496  | 11013  | 4.73% | 984899  | 11083  | 4.68% | 1117824  | 14800  | 5.42% |
| Loans: <sup>(3)</sup> |  |  |  |  |  |  |  |  |  |
| Real estate | 1849065  | 22997  | 4.93% | 1849725  | 22589  | 4.90% | 1804099  | 21054  | 4.64% |
| Agricultural production | 70033  | 961  | 5.44% | 72933  | 915  | 5.03% | 81501  | 1520  | 7.42% |
| Commercial | 116855  | 1824  | 6.19% | 109407  | 1612  | 5.91% | 76633  | 1101  | 5.72% |
| Consumer | 2872  | 64  | 8.84% | 3214  | 64  | 7.99% | 3558  | 78  | 8.72% |
| Mortgage warehouse lines | 395940  | 7059  | 7.07% | 368592  | 6440  | 7.01% | 303463  | 6227  | 8.16% |
| Other | 2453  | 19  | 3.07% | 2351  | 14  | 2.39% | 2438  | 18  | 2.94% |
| &nbsp;&nbsp;Total loans | 2437218  | 32924  | 5.36% | 2406222  | 31634  | 5.27% | 2271692  | 29998  | 5.25% |
| Total interest-earning assets <sup>(4)</sup> | 3396714  | 43937 | 5.18% | 3391121  | 42717  | 5.10% | 3389516  | 44798  | 5.31% |
| Other earning assets | 17062  |  |  | 17062  |  |  | 17062  |  |  |
| Non-earning assets | 297980  |  |  | 280045  |  |  | 288975  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total assets** | $3711756 |  |  | $3688228 |  |  | $3695553 |  |  |
| **Liabilities and shareholders' equity** |  |  |  |  |  |  |  |  |  |
| Interest-bearing deposits: |  |  |  |  |  |  |  |  |  |
| Demand deposits | $251719 | $1617 | 2.55% | $224649 | $1420 | 2.54% | $169602 | $1170 | 2.74% |
| NOW | 369586  | 131  | 0.14% | 375695  | 140  | 0.15% | 393328  | 161  | 0.16% |
| Savings accounts | 356172  | 106  | 0.12% | 354798  | 97  | 0.11% | 359921  | 93  | 0.10% |
| Money market | 156347  | 745  | 1.89% | 146193  | 608  | 1.67% | 132804  | 542  | 1.62% |
| Time deposits | 496155  | 4078  | 3.26% | 516970  | 4283  | 3.32% | 562251  | 6010  | 4.25% |
| Wholesale brokered deposits | 259624  | 2929  | 4.48% | 244401  | 2778  | 4.56% | 327141  | 4004  | 4.87% |
| &nbsp;&nbsp;Total interest-bearing deposits | 1889603  | 9606  | 2.02% | 1862706  | 9326  | 2.01% | 1945047  | 11980  | 2.45% |
| Borrowed funds: |  |  |  |  |  |  |  |  |  |
| Federal funds purchased | 30545  | 353  | 4.59% | 46214  | 517  | 4.49% | 168 | 2 | 4.74% |
| Repurchase agreements | 134619  | 68  | 0.20% | 124636  | 79  | 0.25% | 133280 | 60 | 0.18% |
| Short term borrowings | 5539  | 68  | 4.87% | 24716  | 277  | 4.50% | 1 |  | 0.00% |
| Long term FHLB Advances | 80000  | 788  | 3.91% | 80000  | 780  | 3.91% | 80000  | 786 | 3.91% |
| Long-term debt | 49447  | 429  | 3.44% | 49424  | 430  | 3.49% | 49357 | 429 | 3.46% |
| Subordinated debentures | 35945  | 657  | 7.25% | 35899  | 655  | 7.32% | 35767 | 751 | 8.35% |
| &nbsp;&nbsp;Total borrowed funds | 336095  | 2363  | 2.79% | 360889  | 2738  | 3.04% | 298573  | 2028  | 2.70% |
| &nbsp;&nbsp;Total interest-bearing liabilities | 2225698  | 11969  | 2.13% | 2223595  | 12064  | 2.18% | 2243620  | 14008  | 2.48% |
| Demand deposits - noninterest-bearing | 1048639  |  |  | 1020374  |  |  | 995326  |  |  |
| Other liabilities | 81368  |  |  | 91191  |  |  | 103571  |  |  |
| Shareholders' equity | 356051  |  |  | 353068  |  |  | 353036  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total liabilities and shareholders' equity** | $3711756 |  |  | $3688228 |  |  | $3695553 |  |  |
| Interest income/interest-earning assets |  |  | 5.18% |  |  | 5.10% |  |  | 5.31% |
| Interest expense/interest-earning assets |  |  | 1.40% |  |  | 1.42% |  |  | 1.65% |
| &nbsp;&nbsp;&nbsp;&nbsp;**Net interest income and margin** <sup>(5)</sup> |  | $31968 | 3.78% |  | $30653 | 3.68% |  | $30790 | 3.66% |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;(1) Average balances are obtained from the best available daily or monthly data and are net of deferred fees and related direct costs.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Yields and net interest margin have been computed on a tax equivalent basis utilizing a 21% effective tax rate.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Loans are gross of the allowance for credit losses. Loan fees have been included in the calculation of interest income. Net loan fees and loan acquisition FMV amortization were $(0.3) million and $(0.4) million for the quarters ended September 30, 2025, and 2024, respectively, and $(0.4) million for the quarter ended June 30, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;(4) Non-accrual loans have been included in total loans for purposes of computing total earning assets.

&nbsp;&nbsp;&nbsp;&nbsp;(5) Net interest margin represents net interest income as a percentage of average interest-earning assets.

------

Sierra Bancorp Financial Results

October 27, 2025

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **AVERAGE BALANCES AND RATES** |  |  |  |  |  |  |
| (Dollars in Thousands, Unaudited) | (Dollars in Thousands, Unaudited) |  |  |  |  |  |
|  | **For the nine months ended**  | **For the nine months ended**  | **For the nine months ended**  | **For the nine months ended**  | **For the nine months ended**  | **For the nine months ended**  |
|  | **9/30/2025** | **9/30/2025** | **9/30/2025** | **9/30/2024** | **9/30/2024** | **9/30/2024** |
|  | **Average <br>Balance** <sup>(1)</sup> | **Income/<br>Expense** | **Yield/ Rate** <sup>(2)</sup> | **Average<br>Balance** <sup>(1)</sup> | **Income/<br>Expense** | **Yield/ Rate** <sup>(2)</sup> |
| **Assets** |  |  |  |  |  |  |
| Investments: |  |  |  |  |  |  |
| Interest-earning due from banks | $34728 | $1128 | 4.34% | $49779 | $2065 | 5.53% |
| Taxable | 745614 | 27539 | 4.94% | 863044 | 38081 | 5.88% |
| Non-taxable | 196820 | 4733 | 4.07% | 214677 | 5164 | 4.06% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total investments | 977162 | 33400 | 4.74% | 1127500 | 45310 | 5.52% |
| Loans:(3) |  |  |  |  |  |  |
| Real estate | $1841163 | $67576 | 4.91% | $1804159 | $61706 | 4.57% |
| Agricultural | 73071 | 2906 | 5.32% | 72946 | 4064 | 7.44% |
| Commercial | 109854 | 4951 | 6.03% | 77684 | 3458 | 5.95% |
| Consumer | 3123 | 196 | 8.39% | 3739 | 238 | 8.50% |
| Mortgage warehouse lines | 359564 | 19029 | 7.08% | 234470 | 14431 | 8.22% |
| Other  | 2389 | 50 | 2.80% | 2354 | 46 | 2.61% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total loans | 2389164 | 94708 | 5.30% | 2195352 | 83943 | 5.11% |
| Total interest-earning assets (4) | 3366326 | 128108 | 5.14% | 3322852 | 129253 | 5.25% |
| Other earning assets | 17062 |  |  | 17155 |  |  |
| Non-earning assets | 284071 |  |  | 281952 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total assets** | $3667459 |  |  | $3621959 |  |  |
| **Liabilities and shareholders' equity** |  |  |  |  |  |  |
| Interest-bearing deposits: |  |  |  |  |  |  |
| Demand deposits | $228208 | $4329 | 2.54% | $146443 | $2601 | 2.37% |
| NOW  | 374508 | 390 | 0.14% | 396644 | 393 | 0.13% |
| Savings accounts | 354551 | 292 | 0.11% | 369371 | 246 | 0.09% |
| Money market | 149252 | 1925 | 1.72% | 136652 | 1428 | 1.40% |
| Time deposits | 514679 | 12774 | 3.32% | 562571 | 18251 | 4.33% |
| Brokered deposits | 249584 | 8594 | 4.60% | 280248 | 9737 | 4.64% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total interest-bearing deposits | 1870782 | 28304 | 2.02% | 1891929 | 32656 | 2.31% |
| Borrowed funds: |  |  |  |  |  |  |
| Federal funds purchased | 25758 | 870 | 4.52% | 5074 | 249 | 6.56% |
| Repurchase agreements | 123954 | 216 | 0.23% | 125742 | 166 | 0.18% |
| Short term borrowings | 11439 | 391 | 4.57% | 14314 | 613 | 5.72% |
| Long term FHLB Advances | 80000 | 2339 | 3.91% | 80000 | 2341 | 3.91% |
| Long-term debt | 49424 | 1289 | 3.49% | 49335 | 1291 | 3.50% |
| Subordinated debentures | 35900 | 1965 | 7.32% | 35722 | 2261 | 8.45% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total borrowed funds | 326475 | 7070 | 2.90% | 310187 | 6921 | 2.98% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total interest-bearing liabilities | 2197257 | 35374 | 2.15% | 2202116 | 39577 | 2.40% |
| Demand deposits - noninterest-bearing | 1024278 |  |  | 988128 |  |  |
| Other liabilities | 91709 |  |  | 86061 |  |  |
| Shareholders' equity | 354215 |  |  | 345654 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total liabilities and shareholders' equity** | $3667459 |  |  | $3621959 |  |  |
| Interest income/interest-earning assets |  |  | 5.14% |  |  | 5.25% |
| Interest expense/interest-earning assets |  |  | 1.41% |  |  | 1.59% |
| &nbsp;&nbsp;&nbsp;&nbsp;**Net interest income and margin**<sup>(5)</sup> |  | $92734 | 3.73% |  | $89676 | 3.66% |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;(1) Average balances are obtained from the best available daily or monthly data and are net of deferred fees and related direct costs.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Yields and net interest margin have been computed on a tax equivalent basis utilizing a 21% effective tax rate.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Loans are gross of the allowance for credit losses. Loan fees have been included in the calculation of interest income. Net loan fees and loan acquisition FMV amortization were $(0.9) million and $(1.1) million for the nine months ended September 30, 2025, and 2024, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;(4) Non-accrual loans have been included in total loans for purposes of computing total earning assets.

&nbsp;&nbsp;&nbsp;&nbsp;(5) Net interest margin represents net interest income as a percentage of average interest-earning assets.

#####################################

Category: Financial

Source: Sierra Bancorp

------