Form 8-K

8-K — Investar Holding Corp

Accession: 0001437749-26-033291

Filed: 2026-10-22

Period: 2026-10-22

CIK: 0001602658

SIC: 6022 (STATE COMMERCIAL BANKS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — istr20260825_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (ex_1008963.htm)

EX-99.2 — EXHIBIT 99.2 (ex_1008964.htm)

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8-K — FORM 8-K

8-K (Primary)

Filename: istr20260825_8k.htm · Sequence: 1

istr20260825_8k.htm

false

0001602658

2026-10-22

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 22, 2026

Investar Holding Corporation

(Exact name of registrant as specified in its charter)

Louisiana

001-36522

27-1560715

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

10500 Coursey Blvd.

Baton Rouge, Louisiana 70816

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (225) 227-2222

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:

☐

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, $1.00 par value per share

ISTR

The Nasdaq Global 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 22, 2026, Investar Holding Corporation (the “Company”), the holding company of Investar Bank, National Association (the “Bank”), issued a press release reporting third quarter 2026 results and posted on its website its third quarter 2026 earnings release and investor presentation. The materials contain forward-looking statements regarding the Company and include a cautionary note identifying important factors that could cause actual results to differ materially from those anticipated. Copies of the earnings release and investor presentation are furnished as Exhibit 99.1 and Exhibit 99.2 to this Current Report on Form 8-K.

The information contained in Item 2.02, including Exhibit 99.1 and Exhibit 99.2 of this Current Report, shall not be deemed “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 incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act except as shall be expressly set forth by specific reference in such a filing.

Item 9.01

Financial Statements and Exhibits

(d) Exhibits

Exhibit Number

Description of Exhibit

99.1

Earnings release of Investar Holding Corporation dated October 22, 2026 announcing financial results for the quarter ended September 30, 2026

99.2

Investor presentation dated October 22, 2026

104

The cover page of Investar Holding Corporation’s Form 8-K is formatted in Inline XBRL

SIGNATURES

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

INVESTAR HOLDING CORPORATION

Date: October 22, 2026

By:

/s/ John J. D’Angelo

John J. D’Angelo

President and Chief Executive Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: ex_1008963.htm · Sequence: 2

ex_1008963.htm

Exhibit 99.1

For Immediate Release

Investar Holding Corporation Announces 2026 Third Quarter Results

BATON ROUGE, LA / PR Newswire / October 22, 2026 / Investar Holding Corporation (“Investar”) (NASDAQ:ISTR), the holding company for Investar Bank, National Association (the “Bank”), today announced financial results for the quarter ended September 30, 2026. Investar reported net income available to common shareholders of $11.1 million, or $0.74 per diluted common share, for the third quarter of 2026, compared to net income available to common shareholders of $8.9 million, or $0.61 per diluted common share, for the quarter ended June 30, 2026, and net income available to common shareholders of $5.7 million, or $0.54 per diluted common share, for the quarter ended September 30, 2025.

On a non-GAAP basis, core earnings per diluted common share for the third quarter of 2026 were $0.77 compared to $0.75 for the second quarter of 2026, and $0.54 for the third quarter of 2025. Core earnings available to common shareholders excludes certain items including, but not limited to, gain on call or sale of investment securities, net; loss on sale or disposition of fixed assets, net; loss (gain) on sale of other real estate owned, net; change in the fair value of equity securities; change in the net asset value of other investments; write down of other real estate owned; severance; and acquisition expense (refer to the Reconciliation of Non-GAAP Financial Measures tables for a reconciliation of GAAP to non-GAAP metrics).

Investar’s President and Chief Executive Officer John D’Angelo commented:

“I am extremely pleased with our third quarter results, which reflect both the significant impact of our transformational acquisition of Wichita Falls Bancshares, Inc. (“WFB”) and our continued execution of our strategy of consistent, quality earnings through the optimization of our balance sheet.

Our net interest margin improved substantially to 3.73%, a six basis point increase from previous quarter, and we posted strong results for our core metrics including diluted earnings per common share, return on average assets and efficiency ratio. We were able to grow the yield on interest-earning assets while maintaining low funding costs by replacing a portion of our higher cost brokered time deposits and time deposits with lower cost, non-maturing deposits.

We continued our strategy of allowing the consumer mortgage loans acquired from WFB to run off and replaced them with production in our business lending portfolio, primarily through the origination of higher yielding commercial and industrial loans. We remain enthusiastic about our positioning for future growth both organically and through potential acquisitions.

Additionally, on October 1, 2026, we purchased commercial and industrial, variable-rate revolving lines of credit totaling $65.0 million. The addition of these variable-rate products, combined with new loan production coming on at higher rates, supports our efforts to remix the loan portfolio and optimize the balance sheet.

As always, we remain focused on shareholder value and returning capital to shareholders. We repurchased 25,113 shares of our common stock during the third quarter at an average price of $29.44 per share.”

Third Quarter Highlights

•

Diluted earnings per common share were $0.74 for the quarter ended September 30, 2026 compared to $0.61 for the quarter ended June 30, 2026. Core diluted earnings per common share were $0.77 for the quarter ended September 30, 2026 compared to $0.75 for the quarter ended June 30, 2026.

•

Net interest margin improved six basis points to 3.73% for the quarter ended September 30, 2026 compared to 3.67% for the quarter ended June 30, 2026. Exclusive of the interest income accretion from the acquisition of loans and interest recoveries, adjusted net interest margin improved one basis point to 3.40% for the quarter ended September 30, 2026 compared to 3.39% for the quarter ended June 30, 2026.

•

Return on average assets was 1.21% for the quarter ended September 30, 2026 compared to 0.98% for the quarter ended June 30, 2026. Core return on average assets was 1.25% for the quarter ended September 30, 2026 compared to 1.21% for the quarter ended June 30, 2026.

•

Total loans increased by $6.9 million, or 0.2%, to $3.07 billion at September 30, 2026 compared to $3.06 billion at June 30, 2026. Excluding loans acquired from WFB, total loans increased by $50.4 million, or 2.3%, to $2.26 billion at September 30, 2026 compared to $2.21 billion at June 30, 2026.

•

The business lending portfolio, which consists of loans secured by owner-occupied commercial real estate properties and commercial and industrial loans, increased by $37.9 million, or 3.1%, to $1.25 billion at September 30, 2026 compared to $1.21 billion at June 30, 2026.

•

During the third quarter of 2026, we originated and renewed loans, 59% of which were variable-rate loans, at a 7.0% blended interest rate.

•

Variable-rate loans as a percentage of total loans was 51% at September 30, 2026 compared to 50% at June 30, 2026. Included in variable-rate loans are adjustable-rate mortgage loans we acquired in connection with our acquisition of WFB, which generally have fixed interest rates for an initial period depending on the loan term.

•

On October 1, 2026, Investar completed the purchase of commercial and industrial revolving lines of credit with an unpaid principal balance of approximately $65.0 million and total commitments of $81.9 million. The revolving lines of credit are variable-rate with varying renewal terms.

•

During 2026, Investar hired thirteen commercial bankers, seven in our Texas markets and six in our Louisiana markets, to grow our commercial banking relationships, including loans, deposits and treasury management services.

•

Investar’s regulatory tier 1 leverage capital ratio increased to 10.92%, or 3.4%, at September 30, 2026 compared to 10.56% at June 30, 2026.

•

Investar repurchased 25,113 shares of its common stock through its stock repurchase program during the quarter ended September 30, 2026, leaving 275,628 shares authorized for repurchase under the program at September 30, 2026.

Loans

Total loans were $3.07 billion at September 30, 2026, an increase of $6.9 million, or 0.2%, compared to June 30, 2026, and an increase of $916.3 million, or 42.6%, compared to September 30, 2025. On January 1, 2026, Investar closed its acquisition of WFB, headquartered in Wichita Falls, Texas, and its wholly-owned subsidiary, First National Bank, which increased total loans by $961.9 million.

The following table sets forth the composition of the total loan portfolio as of the dates indicated (dollars in thousands).

Linked Quarter Change

Year/Year Change

Percentage of Total Loans

9/30/2026

6/30/2026

9/30/2025

9/30/2026

9/30/2025

Mortgage loans on real estate

Construction and development

228,516

261,799

140,561

(33,283

)

(12.7

87,955

62.6

7.5

6.5

1-4 Family

924,357

907,385

382,445

16,972

1.9

541,912

141.7

30.1

17.8

Multifamily

143,421

144,234

130,232

(813

)

(0.6

)

13,189

10.1

4.7

6.1

Farmland

11,956

9,850

3,996

2,106

21.4

7,960

199.2

0.4

0.2

Commercial real estate

Owner-occupied

515,704

508,245

462,830

7,459

1.5

52,874

11.4

16.8

21.5

Nonowner-occupied

497,121

512,483

459,711

(15,362

)

(3.0

)

37,410

8.1

16.2

21.4

Commercial and industrial

733,741

703,279

560,763

30,462

4.3

172,978

30.8

23.9

26.1

Consumer

11,992

12,612

9,985

(620

)

(4.9

)

2,007

20.1

0.4

Total loans

3,066,808

3,059,887

2,150,523

6,921

0.2

916,285

42.6

100

Construction and development loans totaled $228.5 million at September 30, 2026, a decrease of $33.3 million, or 12.7%, compared to $261.8 million at June 30, 2026, and an increase of $88.0 million, or 62.6%, compared to $140.6 million at September 30, 2025. The decrease in construction and development loans compared to June 30, 2026 was primarily due to planned run off of loans acquired from WFB, consisting of consumer mortgage and nonowner-occupied construction loans, and conversions to permanent loans upon completion of construction. The increase in construction and development loans compared to September 30, 2025 was primarily due to the acquisition of WFB, partially offset by planned run off of loans acquired from WFB, mostly consumer mortgage construction loans, and conversions to permanent loans upon completion of construction.

1-4 Family loans totaled $924.4 million at September 30, 2026, an increase of $17.0 million, or 1.9%, compared to $907.4 million at June 30, 2026, and an increase of $541.9 million, or 141.7%, compared to $382.4 million at September 30, 2025. The increase in 1-4 Family loans compared to June 30, 2026 was primarily due to conversions of construction and development loans to 1-4 Family loans upon completion of construction, partially offset by loan amortization and payoffs that aligned with our strategy to allow consumer mortgage loans to run off and replace them with production in our business lending portfolio. The increase in 1-4 Family loans compared to September 30, 2025 was primarily due to the acquisition of WFB. Substantially all of the 1-4 Family loans acquired from WFB were consumer mortgage loans with an adjustable rate.

At September 30, 2026, the Bank’s total business lending portfolio, which consists of loans secured by owner-occupied commercial real estate properties and commercial and industrial loans, was $1.25 billion, an increase of $37.9 million, or 3.1%, compared to $1.21 billion at June 30, 2026, and an increase of $225.9 million, or 22.1%, compared to $1.02 billion at September 30, 2025. The increase in the business lending portfolio compared to June 30, 2026 was primarily driven by increased commercial and industrial loan production. The increase in the business lending portfolio compared to September 30, 2025 was primarily driven by the acquisition of WFB and increased commercial and industrial loan production.

Nonowner-occupied loans totaled $497.1 million at September 30, 2026, a decrease of $15.4 million, or 3.0%, compared to $512.5 million at June 30, 2026, and an increase of $37.4 million, or 8.1%, compared to $459.7 million at September 30, 2025. The decrease in nonowner-occupied loans compared to June 30, 2026 was primarily due to loan amortization and payoffs that aligned with our continued strategy to optimize and de-risk the mix of the portfolio. The increase in nonowner-occupied loans compared to September 30, 2025 was primarily due to the acquisition of WFB.

Credit Quality

Nonperforming loans were $21.4 million, or 0.70% of total loans, at September 30, 2026, an increase of $2.0 million compared to $19.4 million, or 0.63% of total loans, at June 30, 2026, and an increase of $13.7 million compared to $7.7 million, or 0.36% of total loans, at September 30, 2025. The increase in nonperforming loans compared to June 30, 2026 was primarily attributable to the downgrade of ten 1-4 Family loan relationships totaling $2.1 million and three owner-occupied commercial real estate relationships totaling $0.8 million, partially offset by paydowns.

The allowance for credit losses was $36.1 million, or 169.0% and 1.18% of nonperforming and total loans, respectively, at September 30, 2026, compared to $36.3 million, or 187.3% and 1.18% of nonperforming and total loans, respectively, at June 30, 2026, and $26.5 million, or 344.7% and 1.23% of nonperforming and total loans, respectively, at September 30, 2025. On January 1, 2026, Investar recorded an $11.7 million allowance for credit losses due to the acquisition of WFB.

Investar recorded a reversal of credit losses of $0.1 million for the quarter ended September 30, 2026 compared to a provision for credit losses of $0.3 million for the quarter ended June 30, 2026 and a provision for credit losses of $0.1 million for the quarter ended September 30, 2025. The reversal of credit losses for the quarter ended September 30, 2026 was primarily due to changes in the economic forecast and loan mix. The provision for credit losses for the quarter ended June 30, 2026 was primarily due to adjustments to qualitative factors, partially offset by a decrease in total loans. The provision for credit losses for the quarter ended September 30, 2025 was primarily due to loan growth, partially offset by changes in the economic forecast and loan mix.

Deposits

Total deposits at September 30, 2026 were $3.18 billion, a decrease of $33.1 million, or 1.0%, compared to $3.21 billion at June 30, 2026, and an increase of $808.1 million, or 34.1%, compared to $2.37 billion at September 30, 2025. The acquisition of WFB increased total deposits by $1.02 billion on January 1, 2026, consisting of $187.9 million and $835.5 million of noninterest-bearing deposits and interest-bearing deposits, respectively.

The following table sets forth the composition of deposits as of the dates indicated (dollars in thousands).

Linked Quarter Change

Year/Year Change

Percentage of Total Deposits

9/30/2026

6/30/2026

9/30/2025

9/30/2026

9/30/2025

Noninterest-bearing demand deposits

639,188

621,870

446,361

17,318

2.8

192,827

43.2

20.1

18.8

Interest-bearing demand deposits

987,710

989,520

633,766

(1,810

)

(0.2

)

353,944

55.8

31.1

26.7

Money market deposits

346,569

362,317

237,339

(15,748

)

(4.3

)

109,230

46.0

10.9

10.0

Brokered demand deposits

257

—

257

—

257

—

Savings deposits

159,995

165,192

137,514

(5,197

)

(3.1

)

22,481

16.3

5.0

5.8

Brokered time deposits

63,981

62,900

210,822

1,081

1.7

(146,841

)

(69.7

)

2.0

8.9

Time deposits

983,071

1,012,087

706,876

(29,016

)

(2.9

)

276,195

39.1

30.9

29.8

Total deposits

3,180,771

3,213,886

2,372,678

(33,115

)

(1.0

808,093

34.1

100

The increase in noninterest-bearing demand deposits at September 30, 2026 compared to June 30, 2026 was primarily the result of organic growth. The decrease in time deposits at September 30, 2026 compared to June 30, 2026 was primarily due to maturities of higher cost time deposits. Brokered time deposits were $64.0 million at September 30, 2026 compared to $62.9 million at June 30, 2026 and $210.8 million at September 30, 2025. Investar utilizes brokered time deposits, entirely in denominations of less than $250,000, to secure fixed cost funding and reduce short-term borrowings. At September 30, 2026, the balance of brokered time deposits remained below 10% of total assets, and the remaining weighted-average duration was approximately five months with a weighted-average rate of 3.93%.

We experienced growth in each deposit category, excluding brokered time deposits, compared to September 30, 2025 primarily as a result of the acquisition of WFB.

Stockholders’ Equity

Stockholders’ equity was $414.0 million at September 30, 2026, a decrease of $6.2 million compared to June 30, 2026, and an increase of $118.7 million compared to September 30, 2025. The decrease in stockholders’ equity compared to June 30, 2026 was primarily attributable to an increase in accumulated other comprehensive loss due to a decrease in the fair value of the Bank’s available for sale securities portfolio partially offset by net income for the quarter. The increase in stockholders’ equity compared to September 30, 2025 was primarily attributable to the acquisition of WFB and net income for the last twelve months, partially offset by an increase in accumulated other comprehensive loss due to a decrease in the fair value of the Bank’s available for sale securities portfolio.

Net Interest Income

Net interest income for the third quarter of 2026 totaled $33.8 million, an increase of $0.3 million, or 0.9%, compared to the second quarter of 2026, and an increase of $12.6 million, or 59.6%, compared to the third quarter of 2025. Total interest income was $53.3 million, $53.2 million and $37.1 million for the quarters ended September 30, 2026, June 30, 2026 and September 30, 2025, respectively. Total interest expense was $19.6 million, $19.8 million and $15.9 million for the corresponding periods. Included in net interest income for the quarters ended September 30, 2026, June 30, 2026 and September 30, 2025 was $3.0 million, $2.5 million and $6,000, respectively, of interest income accretion from the acquisition of loans. Also included in net interest income for the quarters ended September 30, 2026, June 30, 2026 and September 30, 2025 were interest recoveries of $6,000, $21,000 and $64,000, respectively.

Investar’s net interest margin was 3.73% for the quarter ended September 30, 2026, compared to 3.67% for the quarter ended June 30, 2026 and 3.16% for the quarter ended September 30, 2025. The increase in net interest margin for the quarter ended September 30, 2026 compared to the quarter ended June 30, 2026 was primarily driven by a five basis point increase in the yield on interest-earning assets. The increase in net interest margin for the quarter ended September 30, 2026 compared to the quarter ended September 30, 2025 was primarily driven by a 35 basis point increase in the yield on interest-earning assets and a 24 basis point decrease in the overall cost of funds.

The yield on interest-earning assets was 5.88% for the quarter ended September 30, 2026, compared to 5.83% for the quarter ended June 30, 2026 and 5.53% for the quarter ended September 30, 2025. The increase in the yield on interest-earning assets compared to the quarter ended June 30, 2026 was primarily attributable to a 61 basis point increase in the yield on interest-bearing balances with banks and a two basis point increase in the yield on the loan portfolio. The increase in the yield on interest-earning assets compared to the quarter ended September 30, 2025 was primarily attributable to a 27 basis point increase in the yield on the loan portfolio.

Exclusive of the interest income accretion from the acquisition of loans and interest recoveries, adjusted net interest margin was 3.40% for the quarter ended September 30, 2026, compared to 3.39% for the quarter ended June 30, 2026 and 3.15% for the quarter ended September 30, 2025. The adjusted yield on interest-earning assets was 5.56% for the quarter ended September 30, 2026 compared to 5.55% and 5.52% for the quarters ended June 30, 2026 and September 30, 2025, respectively. Refer to the Reconciliation of Non-GAAP Financial Measures tables for a reconciliation of GAAP to non-GAAP metrics.

The overall cost of deposits, which includes noninterest-bearing deposits, increased one basis point to 2.20% for the quarter ended September 30, 2026 compared to 2.19% for the quarter ended June 30, 2026 and decreased 26 basis points compared to 2.46% for the quarter ended September 30, 2025. The increase in the overall cost of deposits compared to the quarter ended June 30, 2026 resulted primarily from both a higher average balance of, and increase in rates paid on, interest-bearing demand deposits and an increase in rates paid on time deposits, partially offset by both a lower average balance of, and a decrease in rates paid on, brokered time deposits and a lower average balance of time deposits. The decrease in the overall cost of deposits compared to the quarter ended September 30, 2025 resulted primarily from both a lower average balance of, and a decrease in rates paid on, brokered time deposits and a decrease in rates paid on time deposits, partially offset by both a higher average balance of, and an increase in rates paid on, interest-bearing demand deposits, and a higher average balance of time deposits.

The cost of short-term borrowings increased 17 basis points to 2.98% for the quarter ended September 30, 2026 compared to 2.81% for the quarter ended June 30, 2026 and increased five basis points compared to 2.93% for the quarter ended September 30, 2025. The increase in the cost of short-term borrowings for the quarter ended September 30, 2026 compared to the quarters ended June 30, 2026 and September 30, 2025 resulted primarily from a decreased utilization of repurchase agreements. Average long-term debt decreased $13.9 million and increased $54.2 million compared to the quarters ended June 30, 2026 and September 30, 2025, respectively, to $139.8 million for the quarter ended September 30, 2026. The decrease compared to the quarter ended June 30, 2026 resulted primarily from decreased utilization of long-term Federal Home Loan Bank (“FHLB”) advances. The increase compared to the quarter ended September 30, 2025 was primarily due to the long-term debt acquired from WFB and increased utilization of long-term FHLB advances.

The overall cost of funds, which includes the noninterest-bearing deposits, for the quarter ended September 30, 2026 was flat at 2.31% compared to the quarter ended June 30, 2026 and decreased 24 basis points compared to 2.55% for the quarter ended September 30, 2025. The decrease in the cost of funds for the quarter ended September 30, 2026 compared to the quarter ended September 30, 2025 resulted primarily from a decrease in the overall cost of deposits.

Noninterest Income

Noninterest income for the third quarter of 2026 totaled $3.0 million, a decrease of $0.1 million, or 1.7%, compared to the second quarter of 2026 and an increase of $0.1 million, or 2.1%, compared to the third quarter of 2025.

The decrease in noninterest income compared to the quarter ended June 30, 2026 was primarily driven by a $0.1 million increase in loss on sale of other real estate owned and a $0.2 million decrease in other operating income, partially offset by a $0.2 million increase in income from bank owned life insurance (“BOLI”). The decrease in other operating income was primarily due to a $0.2 million decrease in distributions from other investments. The increase in income from BOLI was primarily due to BOLI purchases and proceeds received under BOLI policies during the third quarter of 2026.

The increase in noninterest income compared to the quarter ended September 30, 2025 was primarily attributable to a $0.4 million increase in income from BOLI, a $0.2 million increase in interchange fees and a $0.2 million increase in service charges on deposit accounts, partially offset by a $0.2 million increase in loss on sale of other real estate owned and a $0.5 million decrease in other operating income. The increase in income from BOLI was primarily due to BOLI purchases and proceeds received under BOLI policies during the third quarter of 2026. The decrease in other operating income was primarily due to a $0.4 million decrease in distributions from other investments and a $0.1 million decrease in change in net asset value of other investments, partially offset by a $0.1 million increase in wealth management income.

Noninterest Expense

Noninterest expense for the third quarter of 2026 totaled $22.7 million, a decrease of $1.9 million, or 7.8%, compared to the second quarter of 2026, and an increase of $6.2 million, or 37.6%, compared to the third quarter of 2025.

The decrease in noninterest expense for the quarter ended September 30, 2026 compared to the quarter ended June 30, 2026 was primarily driven by a $2.3 million decrease in acquisition expense and a $0.2 million decrease in data processing, partially offset by a $0.3 million increase in salaries and employee benefits and a $0.2 million increase in professional fees. The decrease in acquisition expense was primarily due to the operational conversion of WFB being completed during the second quarter of 2026. The increase in salaries and employee benefits was primarily due to an increase in health insurance claims partially offset by decreases in variable incentive-based compensation and payroll taxes.

The increase in noninterest expense for the quarter ended September 30, 2026 compared to the quarter ended September 30, 2025 was primarily driven by a $3.5 million increase in salaries and employee benefits, a $0.6 million increase in depreciation and amortization, a $0.6 million increase in professional fees, a $0.2 million increase in occupancy, a $0.2 million increase in data processing and a $1.1 million increase in other operating expense. The increases were primarily related to the acquisition of WFB on January 1, 2026. The increase in other operating expense was primarily attributable to a $0.4 million increase in branch services, a $0.2 million increase in software expense, a $0.1 million increase in Federal Deposit Insurance Corporation assessments, a $0.1 million increase in maintenance expense and a $0.1 million increase in telecommunications expense, partially offset by a $0.1 million decrease in other real estate expense.

Taxes

Investar recorded income tax expense of $2.6 million for the quarter ended September 30, 2026, which equates to an effective tax rate of 18.0%, compared to effective tax rates of 18.4% and 17.3% for the quarters ended June 30, 2026 and September 30, 2025, respectively.

Basic and Diluted Earnings Per Common Share

Investar reported basic and diluted earnings per common share of $0.81 and $0.74, respectively, for the quarter ended September 30, 2026, compared to basic and diluted earnings per common share of $0.64 and $0.61, respectively, for the quarter ended June 30, 2026, and basic and diluted earnings per common share of $0.57 and $0.54, respectively, for the quarter ended September 30, 2025.

About Investar Holding Corporation

Investar, headquartered in Baton Rouge, Louisiana, provides full banking services, excluding trust services, through its wholly-owned banking subsidiary, Investar Bank, National Association. The Bank currently operates 36 branch locations serving Louisiana, Texas, and Alabama. At September 30, 2026, the Bank had 415 full-time equivalent employees and total assets of $3.9 billion.

Non-GAAP Financial Measures

This press release contains financial information determined by methods other than in accordance with generally accepted accounting principles in the United States of America, or GAAP. These measures and ratios include “tangible common equity,” “tangible assets,” “tangible common equity to tangible assets,” “tangible book value per common share,” “core noninterest income,” “core earnings before noninterest expense,” “core noninterest expense,” “core earnings before income tax expense,” “core income tax expense,” “core earnings,” “core earnings available to common shareholders,” “core efficiency ratio,” “core return on average assets,” “core return on average common equity,” “core basic earnings per common share” and “core diluted earnings per common share.” We also present certain average loan, yield, net interest income and net interest margin data adjusted to show the effects of excluding interest recoveries and interest income accretion from the acquisition of loans. Management believes these non-GAAP financial measures provide information useful to investors in understanding Investar’s financial results, and Investar believes that its presentation, together with the accompanying reconciliations, provides a more complete understanding of factors and trends affecting Investar’s business and allows investors to view performance in a manner similar to management, the entire financial services sector, bank stock analysts and bank regulators. These non-GAAP measures should not be considered a substitute for GAAP basis measures and results, and Investar strongly encourages investors to review its consolidated financial statements in their entirety and not to rely on any single financial measure. Because non-GAAP financial measures are not standardized, it may not be possible to compare these financial measures with other companies’ non-GAAP financial measures having the same or similar names. A reconciliation of the non-GAAP financial measures disclosed in this press release to the comparable GAAP financial measures is included at the end of the financial statement tables.

Forward-Looking and Cautionary Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that reflect Investar’s current views with respect to, among other things, future events and financial performance, including the potential impacts of its strategies and the WFB transaction. Investar generally identifies forward-looking statements by terminology such as “outlook,” “believes,” “expects,” “potential,” “continues,” “may,” “will,” “could,” “should,” “seeks,” “approximately,” “predicts,” “intends,” “plans,” “estimates,” “anticipates” or the negative version of those words or other comparable words.

Any forward-looking statements contained in this press release are based on the historical performance of Investar and its subsidiaries or on Investar’s current plans, estimates and expectations. The inclusion of this forward-looking information should not be regarded as a representation by Investar that the future plans, estimates or expectations by Investar will be achieved. Such forward-looking statements are subject to various risks and uncertainties and assumptions relating to Investar’s operations, financial results, financial condition, business prospects, growth strategy and liquidity. If one or more of these or other risks or uncertainties materialize, or if Investar’s underlying assumptions prove to be incorrect, Investar’s actual results may vary materially from those indicated in these statements. Investar does not undertake any obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments or otherwise. A number of important factors could cause actual results to differ materially from those indicated by the forward-looking statements. These factors include, but are not limited to, the following, any one or more of which could materially affect the outcome of future events:

•

the significant risks and uncertainties for our business, results of operations and financial condition, as well as our regulatory capital and liquidity ratios and other regulatory requirements caused by business and economic conditions generally and in the financial services industry in particular, whether nationally, regionally or in the markets in which we operate, including heightened uncertainties resulting from recent changing trade and tariff policies that could have an adverse impact on inflation and economic growth at least in the near term;

•

changes in inflation, interest rates, yield curves and interest rate spread relationships that affect our loan and deposit pricing;

•

our ability to successfully execute our strategy focused on consistent, quality earnings through the optimization of our balance sheet, and our ability to successfully execute a long-term growth strategy;

•

our ability to achieve organic loan and deposit growth, and the composition of that growth;

•

our ability to identify and enter into agreements to combine with attractive acquisition candidates, finance acquisitions, complete acquisitions after definitive agreements are entered into, and successfully integrate and grow acquired operations;

•

our potential growth, including our entrance or expansion into new markets, and the need for sufficient capital to support that growth;

•

a reduction in liquidity, including as a result of a reduction in the amount of deposits we hold or other sources of liquidity;

•

inaccuracy of the assumptions and estimates we make in establishing reserves for credit losses and other estimates;

•

changes in the quality or composition of our loan portfolio, including adverse developments in borrower industries or in the repayment ability of individual borrowers;

•

changes in the quality and composition of, and changes in unrealized losses in, our investment portfolio, including whether we may have to sell securities before their recovery of amortized cost basis and realize losses;

•

the extent of continuing client demand for the high level of personalized service that is a key element of our banking approach as well as our ability to execute our strategy generally;

•

our dependence on our management team, and our ability to attract and retain qualified personnel;

•

the concentration of our business within our geographic areas of operation in Louisiana, Texas and Alabama;

•

risks to holders of our common stock relating to our Series A Preferred Stock, including, but not limited to, dividend preferences to holders of the preferred stock, other conditions with respect to the payment of dividends on our common stock, potential dilution upon conversion of the preferred stock, and liquidation preferences to holders of the preferred stock;

•

increasing costs of complying with new and potential future regulations;

•

new or increasing geopolitical tensions, including resulting from conflicts and wars in the Middle East, Ukraine and Israel and surrounding areas or new areas;

•

the emergence or worsening of widespread public health challenges or pandemics;

•

concentration of credit exposure;

•

any deterioration in asset quality and higher loan charge-offs, and the time and effort necessary to resolve problem assets;

•

fluctuations in the price of oil and natural gas;

•

data processing system failures and errors;

•

risks associated with our digital transformation process, including increased risks of cyberattacks and other security breaches and challenges associated with addressing the increased prevalence of artificial intelligence;

•

risks of losses resulting from increased fraud attacks against us, our customers, and others in the financial services industry;

•

potential impairment of our goodwill and other intangible assets;

•

the impact of litigation and other legal proceedings to which we become subject;

•

competitive pressures in the commercial finance, retail banking, mortgage lending and consumer finance industries, as well as the financial resources of, and products offered by, competitors;

•

the impact of changes in laws and regulations applicable to us, including banking, securities and tax laws and regulations and accounting standards, as well as changes in the interpretation of such laws and regulations by our regulators;

•

changes in the scope and costs of FDIC insurance and other coverages;

•

governmental monetary and fiscal policies; and

•

hurricanes, tropical storms, tropical depressions, floods, winter storms, droughts and other adverse weather events, all of which have affected Investar’s market areas from time to time; other natural disasters; oil spills and other man-made disasters; acts of terrorism; other international or domestic calamities; acts of God; and other matters beyond our control.

These factors should not be construed as exhaustive. Additional information on these and other risk factors can be found in Part I Item 1A. “Risk Factors” and in the “Cautionary Note Regarding Forward-Looking Statements” in Investar’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the U.S. Securities and Exchange Commission.

For further information contact:

Investar Holding Corporation

Corey Moore

Executive Vice President and Deputy Chief Financial Officer

(225) 227-2348

Corey.Moore@investarbank.com

INVESTAR HOLDING CORPORATION

SUMMARY FINANCIAL INFORMATION

(Amounts in thousands, except share data)

(Unaudited)

As of and for the three months ended

9/30/2026

6/30/2026

9/30/2025

Linked Quarter

Year/Year

EARNINGS DATA

Total interest income

$ 53,322

$ 53,199

$ 37,095

0.2 %

43.7 %

Total interest expense

19,557

19,750

15,942

(1.0

)

22.7

Net interest income

33,765

33,449

21,153

0.9

59.6

(Reversal of) provision for credit losses

(136

)

275

139

(149.5

)

(197.8

)

Total noninterest income

3,046

3,098

2,984

(1.7

)

2.1

Total noninterest expense

22,737

24,664

16,526

(7.8

)

37.6

Income before income tax expense

14,210

11,608

7,472

22.4

90.2

Income tax expense

2,555

2,136

1,293

19.6

97.6

Net income

11,655

9,472

6,179

23.0

88.6

Preferred stock dividends declared

528

—

Net income available to common shareholders

$ 11,127

$ 8,944

$ 5,651

24.4

96.9

AVERAGE BALANCE SHEET DATA

Total assets

$ 3,814,172

$ 3,879,711

$ 2,797,338

(1.7 )%

36.4 %

Total interest-earning assets

3,594,769

3,656,956

2,659,306

(1.7

)

35.2

Total loans

3,038,414

3,049,671

2,141,280

(0.4

)

41.9

Total interest-bearing deposits

2,553,344

2,578,750

1,919,377

(1.0

)

33.0

Total interest-bearing liabilities

2,738,519

2,804,480

2,033,350

(2.4

)

34.7

Total deposits

3,177,283

3,206,333

2,370,406

(0.9

)

34.0

Total common stockholders’ equity

395,454

390,181

260,799

1.4

51.6

PER COMMON SHARE DATA

Earnings:

Basic earnings per common share

$ 0.81

$ 0.64

$ 0.57

26.6 %

42.1 %

Diluted earnings per common share

0.74

0.61

0.54

21.3

37.0

Core earnings:(1)

Core basic earnings per common share(1)

0.84

0.81

0.58

3.7

44.8

Core diluted earnings per common share(1)

0.77

0.75

0.54

2.7

42.6

Book value per common share

27.89

28.29

26.96

(1.4

)

3.4

Tangible book value per common share(1)

22.55

23.09

22.76

(2.3

)

(0.9

)

Common shares outstanding

13,753,007

13,777,385

9,825,883

(0.2

)

40.0

Weighted average common shares outstanding - basic

13,770,693

13,788,871

9,830,387

(0.1

)

40.1

Weighted average common shares outstanding - diluted

15,722,487

15,540,312

11,527,876

1.2

36.4

PERFORMANCE RATIOS

Return on average assets

1.21 %

0.98 %

0.88 %

23.5 %

37.5 %

Core return on average assets(1)

1.25

1.21

0.89

3.3

40.4

Return on average common equity

11.16

9.19

8.60

21.4

29.8

Core return on average common equity(1)

11.56

11.44

8.73

1.0

32.4

Net interest margin

3.73

3.67

3.16

1.6

18.0

Net interest income to average assets

3.51

3.46

3.00

1.4

17.0

Noninterest expense to average assets

2.37

2.55

2.34

(7.1

)

1.3

Efficiency ratio(2)

61.77

67.49

68.47

(8.5

)

(9.8 )

Core efficiency ratio(1)

60.64

60.07

67.66

1.0

(10.4 )

Dividend payout ratio

14.81

18.75

19.30

(21.0

)

(23.3

)

Net charge-offs (recoveries) to average loans

—

(1) Non-GAAP financial measure. See reconciliation.

(2) Efficiency ratio represents noninterest expense divided by the sum of net interest income (before provision for credit losses) and noninterest income.

INVESTAR HOLDING CORPORATION

SUMMARY FINANCIAL INFORMATION

(Unaudited)

As of and for the three months ended

9/30/2026

6/30/2026

9/30/2025

Linked Quarter

Year/Year

ASSET QUALITY RATIOS

Nonperforming assets to total assets

0.66 %

0.62 %

0.44 %

6.5 %

50.0 %

Nonperforming loans to total loans

0.70

0.63

0.36

11.1

94.4

Allowance for credit losses to total loans

1.18

1.23

—

(4.1 )

Allowance for credit losses to nonperforming loans

169.04

187.33

344.66

(9.8

)

(51.0 )

CAPITAL RATIOS

Investar Holding Corporation:

Total common equity to total assets

9.92 %

10.09 %

9.46 %

(1.7 )%

4.9 %

Tangible common equity to tangible assets(1)

8.18

8.39

8.10

(2.6

)

0.9

Tier 1 leverage capital

10.92

10.56

10.70

3.4

2.1

Common equity tier 1 capital(2)

11.79

11.68

11.12

0.9

6.0

Tier 1 capital(2)

13.36

13.27

12.82

0.7

4.2

Total capital(2)

15.05

14.99

14.65

0.4

2.7

Investar Bank:

Tier 1 leverage capital

11.08

10.75

10.88

3.1

1.8

Common equity tier 1 capital(2)

13.56

13.51

13.05

0.4

3.9

Tier 1 capital(2)

13.56

13.51

13.05

0.4

3.9

Total capital(2)

14.71

14.68

14.17

0.2

3.8

(1) Non-GAAP financial measure. See reconciliation.

(2) Estimated for September 30, 2026.

INVESTAR HOLDING CORPORATION

CONSOLIDATED BALANCE SHEETS

(Amounts in thousands, except share data)

(Unaudited)

September 30, 2026

June 30, 2026

September 30, 2025

ASSETS

Cash and due from banks

$ 31,763

$ 31,758

$ 32,564

Interest-bearing balances due from other banks

25,364

40,545

2,809

Cash and cash equivalents

57,127

72,303

35,373

Available for sale securities at fair value (amortized cost of $480,042, $459,375 and $417,729, respectively)

412,643

411,326

370,251

Held to maturity securities at amortized cost (fair value of $47,841, $49,450 and $50,576, respectively)

47,039

47,217

47,834

Loans

3,066,808

3,059,887

2,150,523

Less: allowance for credit losses

(36,110 )

(36,251 )

(26,470 )

Loans, net

3,030,698

3,023,636

2,124,053

Equity securities at fair value

4,359

4,111

3,270

Nonmarketable equity securities

23,622

23,759

15,255

Bank premises and equipment, net of accumulated depreciation of $25,925, $25,268 and $23,297, respectively

57,383

59,907

39,732

Other real estate owned, net

4,034

4,747

4,633

Accrued interest receivable

19,339

18,887

14,858

Deferred tax asset

19,552

15,183

14,362

Goodwill and other intangible assets, net

73,468

71,704

41,303

Bank owned life insurance

91,989

84,299

68,612

Other assets

25,566

24,594

21,092

Total assets

$ 3,866,819

$ 3,861,673

$ 2,800,628

LIABILITIES

Deposits

Noninterest-bearing

$ 639,188

$ 621,870

$ 446,361

Interest-bearing

2,541,583

2,592,016

1,926,317

Total deposits

3,180,771

3,213,886

2,372,678

Advances from Federal Home Loan Bank

184,500

136,000

60,000

Repurchase agreements

10,444

18,575

15,066

Subordinated debt, net of unamortized issuance costs

16,769

16,759

16,728

Junior subordinated debt

22,968

22,994

8,806

Accrued taxes and other liabilities

37,397

33,327

32,055

Total liabilities

3,452,849

3,441,541

2,505,333

STOCKHOLDERS’ EQUITY

Preferred stock, no par value per share; 5,000,000 shares authorized; 6.5% Series A Non-Cumulative Perpetual Convertible Preferred Stock; 32,500 shares ($1,000 liquidation preference) issued and outstanding at September 30, 2026, June 30, 2026 and September 30, 2025

30,353

Common stock, $1.00 par value per share; 40,000,000 shares authorized; 13,753,007, 13,777,385 and 9,825,883 shares issued and outstanding, at September 30, 2026, June 30, 2026 and September 30, 2025, respectively

13,753

13,777

9,826

Surplus

245,819

246,033

146,304

Retained earnings

177,259

167,784

146,178

Accumulated other comprehensive loss

(53,214 )

(37,815 )

(37,366 )

Total stockholders’ equity

413,970

420,132

295,295

Total liabilities and stockholders’ equity

$ 3,866,819

$ 3,861,673

$ 2,800,628

INVESTAR HOLDING CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

(Amounts in thousands, except share data)

(Unaudited)

For the three months ended

September 30, 2026

June 30, 2026

September 30, 2025

INTEREST INCOME

Interest and fees on loans

$ 48,257

$ 47,715

$ 32,563

Interest on investment securities

Taxable

3,824

3,790

3,096

Tax-exempt

740

743

689

Other interest income

501

951

747

Total interest income

53,322

53,199

37,095

INTEREST EXPENSE

Interest on deposits

17,598

17,496

14,726

Interest on borrowings

1,959

2,254

1,216

Total interest expense

19,557

19,750

15,942

Net interest income

33,765

33,449

21,153

(Reversal of) provision for credit losses

(136

)

275

139

Net interest income after (reversal of) provision for credit losses

33,901

33,174

21,014

NONINTEREST INCOME

Service charges on deposit accounts

1,054

933

832

Gain on call or sale of investment securities, net

—

Loss on sale or disposition of fixed assets, net

—

)

(Loss) gain on sale of other real estate owned, net

(122

)

Interchange fees

598

524

394

Income from bank owned life insurance

902

696

485

Change in the fair value of equity securities

177

200

Other operating income

516

752

982

Total noninterest income

3,046

3,098

2,984

NONINTEREST EXPENSE

Depreciation and amortization

1,307

1,333

683

Salaries and employee benefits

13,752

13,430

10,302

Occupancy

923

955

679

Data processing

1,030

1,223

831

Marketing

132

130

101

Professional fees

1,094

924

496

Acquisition expenses

258

2,582

246

Other operating expenses

4,241

4,087

3,188

Total noninterest expense

22,737

24,664

16,526

Income before income tax expense

14,210

11,608

7,472

Income tax expense

2,555

2,136

1,293

Net income

11,655

9,472

6,179

Preferred stock dividends declared

528

Net income available to common shareholders

$ 11,127

$ 8,944

$ 5,651

EARNINGS PER COMMON SHARE

Basic earnings per common share

$ 0.81

$ 0.64

$ 0.57

Diluted earnings per common share

0.74

0.61

0.54

Cash dividends declared per common share

0.12

0.11

INVESTAR HOLDING CORPORATION

CONSOLIDATED AVERAGE BALANCE SHEET, INTEREST EARNED AND YIELD ANALYSIS

(Amounts in thousands)

(Unaudited)

For the three months ended

September 30, 2026

June 30, 2026

September 30, 2025

Average Balance

Interest Income/ Expense

Yield/ Rate

Average Balance

Interest Income/ Expense

Yield/ Rate

Average Balance

Interest Income/ Expense

Yield/ Rate

Assets

Interest-earning assets:

Loans

$ 3,038,414

$ 48,257

6.30 %

$ 3,049,671

$ 47,715

6.28 %

$ 2,141,280

$ 32,563

6.03 %

Securities:

Taxable

459,120

3,824

3.30

460,171

3,790

3.30

406,153

3,096

3.02

Tax-exempt

55,937

740

5.25

56,218

743

5.30

51,442

689

5.31

Interest-bearing balances with banks

41,298

501

4.81

90,896

951

4.20

60,431

747

4.90

Total interest-earning assets

3,594,769

53,322

5.88

3,656,956

53,199

5.83

2,659,306

37,095

5.53

Cash and due from banks

29,980

31,886

27,102

Intangible assets

71,544

71,812

41,370

Other assets

153,987

154,580

96,704

Allowance for credit losses

(36,108 )

(35,523 )

(27,144 )

Total assets

$ 3,814,172

$ 3,879,711

$ 2,797,338

Liabilities and stockholders’ equity

Interest-bearing liabilities:

Deposits:

Interest-bearing demand deposits

$ 1,343,655

$ 7,958

2.35 %

$ 1,320,779

$ 7,707

2.34 %

$ 836,137

$ 4,802

2.28 %

Brokered demand deposits

3,818

3.80

3.82

109

4.59

Savings deposits

162,689

395

0.96

165,410

376

0.91

136,314

380

1.11

Brokered time deposits

47,244

457

3.84

73,462

706

3.86

242,224

2,842

4.66

Time deposits

995,938

8,752

3.49

1,019,011

8,706

3.43

704,593

6,701

3.77

Total interest-bearing deposits

2,553,344

17,598

2.73

2,578,750

17,496

2.72

1,919,377

14,726

3.04

Short-term borrowings

45,419

341

2.98

72,103

504

2.81

28,452

210

2.93

Long-term debt

139,756

1,618

4.59

153,627

1,750

4.57

85,521

1,006

4.66

Total interest-bearing liabilities

2,738,519

19,557

2.83

2,804,480

19,750

2.82

2,033,350

15,942

3.11

Noninterest-bearing deposits

623,939

627,583

451,029

Other liabilities

25,907

27,114

21,786

Stockholders’ equity

425,807

420,534

291,173

Total liabilities and stockholders’ equity

$ 3,814,172

$ 3,879,711

$ 2,797,338

Net interest income/net interest margin

$ 33,765

3.73 %

$ 33,449

3.67 %

$ 21,153

3.16 %

Overall cost of deposits(1)

2.20 %

2.19 %

2.46 %

Overall cost of funds(2)

2.31 %

2.55 %

(1)

Calculated as total interest on deposits divided by the sum of average interest-bearing deposits and average noninterest-bearing deposits and annualized based on the number of days in the quarter.

(2)

Calculated as total interest expense divided by the sum of average interest-bearing liabilities and average noninterest-bearing deposits and annualized based on the number of days in the quarter.

INVESTAR HOLDING CORPORATION

RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

INTEREST EARNED AND YIELD ANALYSIS ADJUSTED FOR INTEREST RECOVERIES AND ACCRETION

(Amounts in thousands)

(Unaudited)

For the three months ended

September 30, 2026

June 30, 2026

September 30, 2025

Average Balance

Interest Income/ Expense

Yield/ Rate

Average Balance

Interest Income/ Expense

Yield/ Rate

Average Balance

Interest Income/ Expense

Yield/ Rate

Interest-earning assets:

Loans

$ 3,038,414

$ 48,257

6.30 %

$ 3,049,671

$ 47,715

6.28 %

$ 2,141,280

$ 32,563

6.03 %

Adjustments:

Interest recoveries

Accretion

2,965

2,543

Adjusted loans

3,038,414

45,286

5.91

3,049,671

45,151

5.94

2,141,280

32,493

6.02

Securities:

Taxable

459,120

3,824

3.30

460,171

3,790

3.30

406,153

3,096

3.02

Tax-exempt

55,937

740

5.25

56,218

743

5.30

51,442

689

5.31

Interest-bearing balances with banks

41,298

501

4.81

90,896

951

4.20

60,431

747

4.90

Adjusted interest-earning assets

3,594,769

50,351

5.56

3,656,956

50,635

5.55

2,659,306

37,025

5.52

Total interest-bearing liabilities

2,738,519

19,557

2.83

2,804,480

19,750

2.82

2,033,350

15,942

3.11

Adjusted net interest income/adjusted net interest margin

$ 30,794

3.40 %

$ 30,885

3.39 %

$ 21,083

3.15 %

INVESTAR HOLDING CORPORATION

RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

(Amounts in thousands, except share data)

(Unaudited)

September 30, 2026

June 30, 2026

September 30, 2025

Tangible common equity

Total stockholders’ equity

$ 413,970

$ 420,132

$ 295,295

Less: preferred stock

30,353

Total common equity

383,617

389,779

264,942

Adjustments:

Goodwill

60,634

58,267

40,088

Core deposit intangible

12,734

13,337

1,115

Trademark intangible

100

Tangible common equity

$ 310,149

$ 318,075

$ 223,639

Tangible assets

Total assets

$ 3,866,819

$ 3,861,673

$ 2,800,628

Adjustments:

Goodwill

60,634

58,267

40,088

Core deposit intangible

12,734

13,337

1,115

Trademark intangible

100

Tangible assets

$ 3,793,351

$ 3,789,969

$ 2,759,325

Common shares outstanding

13,753,007

13,777,385

9,825,883

Tangible common equity to tangible assets

8.18 %

8.39 %

8.10 %

Book value per common share

$ 27.89

$ 28.29

$ 26.96

Tangible book value per common share

22.55

23.09

22.76

INVESTAR HOLDING CORPORATION

RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

(Amounts in thousands, except share data)

(Unaudited)

For the three months ended

September 30, 2026

June 30, 2026

September 30, 2025

Net interest income

(a)

$ 33,765

$ 33,449

$ 21,153

(Reversal of) provision for credit losses

(136

)

275

139

Net interest income after (reversal of) provision for credit losses

33,901

33,174

21,014

Total noninterest income

(b)

3,046

3,098

2,984

Gain on call or sale of investment securities, net

—

(12

)

Loss on sale or disposition of fixed assets, net

—

Loss (gain) on sale of other real estate owned, net

122

)

(94 )

Change in the fair value of equity securities

(98

)

(177

)

(200

)

Change in the net asset value of other investments(1)

144

109

Core noninterest income

(d)

3,214

3,014

2,704

Core earnings before noninterest expense

37,115

36,188

23,718

Total noninterest expense

(c)

22,737

24,664

16,526

Write down of other real estate owned(2)

(11

)

(75

)

(138 )

Severance(3)

(43 )

(105 )

—

Acquisition expense

(258

)

(2,582

)

(246

)

Core noninterest expense

(f)

22,425

21,902

16,142

Core earnings before income tax expense

14,690

14,286

7,576

Core income tax expense(4)

2,644

2,629

1,311

Core earnings

12,046

11,657

6,265

Preferred stock dividends declared

528

Core earnings available to common shareholders

$ 11,518

$ 11,129

$ 5,737

Core basic earnings per common share

$ 0.84

$ 0.81

$ 0.58

Diluted earnings per common share (GAAP)

$ 0.74

$ 0.61

$ 0.54

Gain on call or sale of investment securities, net

—

Loss on sale or disposition of fixed assets, net

—

Loss (gain) on sale of other real estate owned, net

0.01

—

(0.01

)

Change in the fair value of equity securities

(0.01 )

(0.02

)

Change in the net asset value of other investments(1)

0.01

—

Write down of other real estate owned(2)

—

0.01

Severance(3)

—

0.01

—

Acquisition expense

0.02

0.13

0.02

Core diluted earnings per common share

$ 0.77

$ 0.75

$ 0.54

Efficiency ratio

61.77 %

67.49 %

68.47 %

Core efficiency ratio

(f) / (a+d)

60.64

60.07

67.66

Core return on average assets(5)

1.25

1.21

0.89

Core return on average common equity(6)

11.56

11.44

8.73

Total average assets

$ 3,814,172

$ 3,879,711

$ 2,797,338

Total average common stockholders’ equity

395,454

390,181

260,799

(1)

Change in net asset value of other investments represents unrealized gains or losses on Investar’s investments in Small Business Investment Companies and other investment funds included in other operating income in the accompanying consolidated statements of income.

(2)

Reflects an adjustment to noninterest expense for provision for estimated losses on other real estate owned when fair value is determined to be less than carrying values, which is included in other operating expenses in the accompanying consolidated statements of income.

(3)

Severance is included in salaries and employee benefits in the accompanying consolidated statements of income.

(4)

Core income tax expense is calculated using the effective tax rates of 18.0%, 18.4% and 17.3% for the quarters ended September 30, 2026, June 30, 2026 and September 30, 2025, respectively.

(5)

Core earnings used in calculation. No adjustments were made to total average assets.

(6)

Core earnings available to common shareholders used in calculation. No adjustments were made to total average common stockholders’ equity.

EX-99.2 — EXHIBIT 99.2

EX-99.2

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