8-K - COSO - Equibles

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, 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): January 20, 2026

COASTALSOUTH BANCSHARES, INC.

(Exact name of Registrant as Specified in Its Charter)

Georgia	001-42730	57-1184730
(State or Other Jurisdiction<br>of Incorporation)	(Commission File Number)	(IRS Employer<br>Identification No.)
400 Galleria Parkway<br><br>Suite 1900
Atlanta, Georgia		30339
(Address of Principal Executive Offices)		(Zip Code)
Registrant’s Telephone Number, Including Area Code: (678) 396-4605
---

(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:

☐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<br>Symbol(s)	Name of each exchange on which registered
Common Stock, par value $1.00 per share	COSO	New York Stock Exchange

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 January 20, 2026, CoastalSouth Bancshares, Inc. (the “Company”) issued a press release announcing its results of operations and financial condition for the fourth quarter ended December 31, 2025. A copy of the press release covering such announcement is attached hereto as Exhibit 99.1 and incorporated by reference herein.

In accordance with General Instruction B.2 of Form 8-K, the information furnished in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1 hereto, 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 incorporated by reference into any filing or other document pursuant to the Securities Act of 1933, as amended (the "Securities Act"), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing or document.

Item 7.01 Regulation FD Disclosure.

On January 20, 2026, the Company made available a copy of investor presentation material (the “Investor Presentation”) prepared for use with the press release. The Investor Presentation is attached to this Report as Exhibit 99.2. The Investor Presentation is also available on the “Investor Relations” page of the Company’s website (https://www.coastalstatesbank.com).

In accordance with General Instruction B.2 of Form 8-K, the information furnished in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.2 hereto, shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing or other document pursuant to the Securities Act, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing or document.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit<br><br>Number	Description
99.1	CoastalSouth Bancshares, Inc. Earnings Release dated January 20, 2026*
99.2	CoastalSouth Bancshares, Inc. Investor Presentation re: 4th Quarter 2025 Results*
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

* Filed herewith.

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.

	CoastalSouth Bancshares, Inc.
Date: January 20, 2026	By:	/s/ Anthony P. Valduga
		Anthony P. Valduga
		Chief Financial Officer & Chief Operating Officer

EX-99.1

EXHIBIT 99.1

FOR IMMEDIATE RELEASE

COASTALSOUTH BANCSHARES, INC. REPORTS EARNINGS FOR FOURTH QUARTER 2025

ATLANTA, GA (January 20, 2026) – CoastalSouth Bancshares, Inc. (“CoastalSouth” or the “Company”) (NYSE: COSO), the holding company for Coastal States Bank (the “Bank” or "CSB"), today reported net income of $7.1 million, or $0.58 per diluted share, for the fourth quarter of 2025, compared to approximately $6.7 million, or $0.54 per diluted share, for the third quarter of 2025, and $5.7 million, or $0.54 per diluted share, for the fourth quarter of 2024. For the year ended December 31, 2025, the Company reported net income of $24.9 million, or $2.16 per diluted share, compared with $21.9 million, or $2.09 per diluted share, for the year ended December 31, 2024.

Commenting on the Company’s results, President and Chief Executive Officer, Stephen R. Stone stated, “We are pleased to report record net income for the year of $24.9 million and pre-tax pre-provision net revenue1 ("PPNR") of $34.3 million, which is an increase of 23.6% compared to December 31, 2024. We also produced over $776.0 million in loan commitments and grew core deposits1 by over $120.7 million."

Mr. Stone also announced the Company's strategic expansion into the Charleston, SC market. "This expansion builds upon the strong foundation we have established in the Lowcountry and reflects our continued investment in this dynamic region,” said Stone. "CSB has assembled a locally based commercial banking team with extensive experience serving businesses throughout Charleston and the broader Lowcountry market. The team we have assembled, led by Edward Vaughan, Charleston Market President, will help us continue to drive strong loan and deposit growth."

Fourth Quarter 2025 Performance Highlights:

Net income of $7.1 million or $0.58 per diluted share
Return on average assets ("ROAA") of 1.24%
Return on average equity ("ROAE") of 11.02%; Return on average tangible common equity1 ("ROATCE") of 11.24%
Net interest margin of 3.60%, an increase of 2 basis points from the third quarter of 2025
Efficiency ratio of 55.34% for the fourth quarter of 2025
Loans held for investment ("LHFI") production2 of $225.1 million during the fourth quarter of 2025 led to LHFI growth of $64.3 million, up 16.4% annualized from the third quarter of 2025
Book value per share growth of $0.75, or 14.23% annualized, to $21.66 at December 31, 2025; Tangible book value1 per share growth of $0.76, or 14.72% annualized, to $21.25 at December 31, 2025 from the third quarter of 2025
Total shareholders' equity to total assets of 11.25%, compared to 11.10% as of the third quarter of 2025; Tangible common equity1 to tangible assets1 of 11.06%, compared to 10.91% at September 30, 2025
Net charge-offs to average loans held for investment of 0.00%
Nonperforming assets to total assets of 0.79%; adjusted nonperforming assets to total assets1 of 0.62%
Allowance for credit losses ("ACL") on LHFI to total LHFI of 1.16%; ACL on LHFI to nonperforming loans of 102.39%

Operating Highlights

Net interest income totaled $19.9 million for the fourth quarter of 2025, an increase of $673 thousand, or 3.5%, from $19.2 million for the third quarter of 2025 and an increase of $3.6 million, or 22.1% from the fourth quarter of 2024. The Company’s net interest margin expanded to 3.60% for the fourth quarter of 2025, a 2 basis point increase from the third quarter of 2025 and a 39 basis point increase from the fourth quarter of 2024.

The yield on average interest-earning assets for the fourth quarter of 2025 decreased to 5.98% from 6.14% for the third quarter of 2025. This decrease was primarily related to an overall yield decrease in all interest-earning assets, primarily due to the recent interest rate cuts, albeit a significant growth in average total earning assets. Compared to the fourth quarter of 2024, yields on earning assets decreased 4 basis points to 5.98% from 6.02%. The decrease was primarily attributable to the aforementioned interest rate cuts during 2025, offset by significant growth of $171.9 million in average total earning assets, primarily in LHFI.

1 Considered non-GAAP financial measure - See "Non-GAAP Financial Measures" and reconciliation of GAAP to non-GAAP financial measures in tables 10A - 10I.

2 The Company defines production as original loan commitment, which includes both funded and unfunded balances.

The Company’s total cost of funds was 2.60% for the fourth quarter of 2025, a decrease of 19 basis points and 39 basis points compared with the third quarter of 2025 and fourth quarter of 2024, respectively. Deposit costs decreased 13 basis points during the fourth quarter of 2025 to 2.59%, compared to 2.72% in the third quarter of 2025. The cost of interest-bearing deposits decreased 14 basis points during the fourth quarter of 2025 to 3.09%, compared with 3.23% in the third quarter of 2025, reflecting continued repricing of certificates of deposits in the fourth quarter of 2025.

Noninterest income totaled $2.3 million for the fourth quarter of 2025, an increase of $195 thousand, or 9.3%, from the third quarter of 2025, primarily attributable to an increase in gain on sale of government guaranteed loans ("GGL"), service charges on deposits, mortgage banking related income and other noninterest income. Noninterest expense totaled $12.3 million for the fourth quarter of 2025, an increase of $406 thousand, or 3.4%, from the third quarter of 2025, primarily due to higher salaries and employee benefits; offset by decreases in other categories, primarily other professional services.

The Company’s effective tax rate for the fourth quarter of 2025 was 18.3%, compared to 23.2% for the third quarter of 2025 and 14.3% for the fourth quarter of 2024. The decrease in effective tax rate from the third quarter of 2025 was primarily due to a higher recognition of benefits from tax credits in the fourth quarter of 2025.

Balance Sheet Trends

Total assets were $2.31 billion at December 31, 2025, an increase of $207.9 million, or 9.9%, from $2.10 billion at December 31, 2024. Loans held for sale ("LHFS") were $170.9 million at December 31, 2025, a decrease of $3.1 million, or 1.8%, from $174.0 million at December 31, 2024. Gross LHFI were $1.62 billion at December 31, 2025, an increase of $207.9 million, or 14.7%, from $1.41 billion at December 31, 2024.

Total deposits were $1.99 billion at December 31, 2025, an increase of $152.9 million, or 8.3%, from $1.83 billion at December 31, 2024. Noninterest-bearing deposits were $312.3 million at December 31, 2025, or 15.7% of total deposits, compared to $302.9 million, or 16.5% of total deposits, at December 31, 2024. Brokered certificates of deposits, a component of time deposits, were $307.0 million at December 31, 2025, as compared to $274.9 million at December 31, 2024, an increase of $32.1 million, or 11.7%.

Credit Quality

During the fourth quarter of 2025, the Company recorded a provision for credit losses of $1.2 million, compared to $653 thousand and $1.2 million during the third quarter of 2025 and fourth quarter of 2024, respectively. The provision expense recorded during the fourth quarter of 2025 was due to increased loan production and other changes in loss rates and economic factors. The Company's annualized net charge-offs (recoveries) to average LHFI ratio was 0.00% for the fourth quarter of 2025 as compared to 0.03% and (0.02)% during the third quarter of 2025 and fourth quarter of 2024, respectively.

Nonperforming assets totaled $18.3 million, or 0.79% of total assets, at December 31, 2025 compared to $15.9 million, or 0.76% of total assets at December 31, 2024. The $2.4 million increase in nonperforming assets at December 31, 2025 from December 31, 2024 was primarily due to the transfer of one senior housing loan to nonaccrual. This is a construction loan for an assisted living facility that is approximately 92% complete and has a current loan-to-value of 55%. Adjusted nonperforming assets3, which excludes the guaranteed portions of nonaccrual loans, was $14.2 million, or 0.62% of total assets, at December 31, 2025 compared to $11.1 million, or 0.53% of total assets, at December 31, 2024.

About CoastalSouth Bancshares, Inc.

CoastalSouth Bancshares, Inc. is a bank holding company headquartered in Atlanta, Georgia. Through our wholly owned subsidiary, Coastal States Bank, a South Carolina state-chartered commercial bank, we offer a full range of banking products and services designed for businesses, real estate professionals, and consumers looking for a deep and meaningful relationship with their bank. To learn more about Coastal States Bank, visit www.coastalstatesbank.com.

Contacts
Stephen R. Stone	Anthony P. Valduga
President and Chief Executive Officer	Chief Financial Officer / Chief Operating Officer
678-396-4605
investorrelations@coastalstatesbank.com

3 Considered non-GAAP financial measure - See "Non-GAAP Financial Measures" and reconciliation of GAAP to non-GAAP financial measures in tables 10A - 10I.

Forward-Looking Statements

Statements in this press release regarding future events and our expectations and beliefs about our future financial performance and financial condition, as well as trends in our business and markets, constitute “forward-looking statements” within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are not historical in nature and may be identified by references to a future period or periods by the use of the words “believe,” “expect,” “anticipate,” “intend,” “plan,” “estimate,” “project,” “outlook,” or words of similar meaning, or future or conditional verbs such as “will,” “would,” “should,” “could,” or “may.” The forward-looking statements in this press release should not be relied on because they are based on current information and on assumptions that we make about future events and circumstances that are subject to a number of known and unknown risks and uncertainties that are often difficult to predict and beyond our control. As a result of those risks and uncertainties, and other factors, our actual financial results in the future could differ, possibly materially, from those expressed in or implied by the forward-looking statements contained in this press release and could cause us to make changes to our future plans.

Factors that might cause such differences include, but are not limited to: the impact of current and future economic conditions, particularly those affecting the financial services industry, including the effects of declines in the real estate market, high unemployment rates, inflationary pressures, elevated interest rates and slowdowns in economic growth, as well as the financial stress on borrowers as a result of the foregoing; potential impacts of any adverse developments in the banking industry, including any impacts on customer confidence, deposit outflows, liquidity and the regulatory response thereto; changes in the interest rate environment, including changes to the federal funds rate; changes in prices, values and sales volumes of residential and commercial real estate; competition in our markets that may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income; interest rate fluctuations, which could have an adverse effect on the Company’s profitability; a breach in security of our information systems, including the occurrence of a cyber-attack incidents or a deficiencies in cyber security; risks related to potential acquisitions; government actions or inactions, including a prolonged shutdown of the federal government, tariffs, or trade wars (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), legislation or regulatory changes which could adversely affect the ability of the consolidated Company to conduct business combinations or new operations; changes in tax laws; significant turbulence or a disruption in the capital or financial markets and the effect of a fall in stock market prices on our investment securities; the effects of war or other conflicts, domestic civil unrest and tyranny, and changes in the overall geopolitical landscape; and adverse results from current or future litigation, regulatory examinations or other legal and/or regulatory actions, including as a result of the Company’s participation in and execution of government programs. Therefore, the Company can give no assurance that the results contemplated in the forward-looking statements will be realized.

Additional information regarding these and other risks and uncertainties to which our business and future financial performance are subject is contained in the section titled “Cautionary Note Regarding Forward-Looking Statements” and “Risk Factors” in the Company’s final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act of 1933, as amended, filed with the Securities and Exchange Commission (the “SEC”) on July 2, 2025 (Registration No. 333-287854), relating to our initial public offering, and in other documents that we file with the SEC from time to time, which are available on the SEC’s website, http://www.sec.gov.

In addition, our actual financial results in the future may differ from those currently expected due to additional risks and uncertainties of which we are not currently aware or which we do not currently view as, but in the future may become, material to our business or operating results. Due to these and other possible uncertainties and risks, readers are cautioned not to place undue reliance on the forward-looking statements contained in this press release or to make predictions based solely on historical financial performance.

Any forward-looking statement speaks only as of the date on which it is made, and we do not undertake any obligation to update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. All forward-looking statements, express or implied, included in this press release are qualified in their entirety by this cautionary statement.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Financial Highlights (unaudited)
						As of and for the Year Ended
(dollars in thousands except
per share amounts)
Selected Operating Data:
Interest income	33,006	32,890	31,793	30,024	30,537		127,713	123,649
Interest expense	13,143	13,700	13,715	13,265	14,266		53,823	58,327
Net interest income	19,863	19,190	18,078	16,759	16,271		73,890	65,322
Provision for credit losses	1,162	653	752	629	1,240		3,196	553
Noninterest income	2,295	2,100	1,795	1,881	1,958		8,071	4,514
Noninterest expense	12,262	11,856	12,092	11,419	10,335		47,629	42,068
Income tax expense	1,598	2,040	1,064	1,542	950		6,244	5,311
Net income	7,136	6,741	5,965	5,050	5,704		24,892	21,904
Adjusted net income (1)	7,136	6,749	5,965	5,050	5,704		24,900	24,558
Share and Per Share Data:
Basic earnings per share	0.60	0.57	0.58	0.49	0.56		2.24	2.15
Adjusted basic earnings<br> per share (1)	0.60	0.57	0.58	0.49	0.56		2.24	2.41
Diluted earnings per share	0.58	0.54	0.57	0.47	0.54		2.16	2.09
Adjusted diluted earnings<br> per share (1)	0.58	0.54	0.57	0.47	0.54		2.16	2.35
Book value per share	21.66	20.91	20.37	19.67	19.01		21.66	19.01
Tangible book value per share (1)	21.25	20.49	19.88	19.17	18.51		21.25	18.51
Shares of common stock outstanding	11,980,412	11,978,921	10,278,921	10,274,271	10,270,146		11,980,412	10,270,146
Weighted average diluted shares <br> outstanding	12,387,619	12,325,462	10,612,255	10,642,078	10,596,364		11,520,215	10,470,633
Selected Balance Sheet Data:
Total assets	2,306,586	2,255,389	2,221,245	2,190,391	2,098,712		2,306,586	2,098,712
Securities available-for-sale, at<br> fair value (2)	330,503	334,955	331,760	325,478	335,267		330,503	335,267
Gross loans held for investment	1,617,315	1,552,976	1,527,199	1,472,232	1,409,443		1,617,315	1,409,443
Loans held for sale	170,933	231,593	209,101	187,481	174,033		170,933	174,033
Allowance for credit losses	18,743	18,028	17,497	17,104	17,118		18,743	17,118
Goodwill and other intangible assets	6,262	6,186	6,190	6,199	6,386		6,262	6,386
Total deposits	1,987,684	1,949,672	1,968,301	1,937,693	1,834,802		1,987,684	1,834,802
Core deposits (1)	1,680,650	1,654,764	1,660,409	1,650,358	1,559,904		1,680,650	1,559,904
Other borrowings	30,000	25,000	14,753	20,738	41,725		30,000	41,725
Total Shareholders' equity	259,529	250,438	209,365	202,104	195,232		259,529	195,232

All values are in US Dollars.

(1) Considered non-GAAP financial measure - See "Non-GAAP Financial Measures” and reconciliation of GAAP to non-GAAP financial measures in tables 10A - 10I.

(2) The Company did not have securities held to maturity in any of the periods presented.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Financial Highlights - continued (unaudited)
												As of and for the Year Ended

(dollars in thousands)
Performance Ratios:
Pre-tax, pre-provision net revenue<br> (PPNR) (1)	9,896		9,434		7,781		7,221		7,894				34,332		27,768
Return on average assets (ROAA) (2)	1.24	%	1.20	%	1.09	%	0.97	%	1.07		%		1.13	%	1.05	%
Adjusted return on average assets <br> (Adj. ROAA) (1)(2)	1.24		1.20		1.09		0.97		1.07				1.13		1.18
Return on average equity (2)	11.02		10.84		11.62		10.25		11.65				10.94		12.13
Adjusted return on average equity (1)(2)	11.02		10.85		11.62		10.25		11.65				10.95		13.60
Return on average tangible common <br> equity (ROATCE) (1)(2)	11.24		11.07		11.92		10.52		11.97				11.19		12.49
Adjusted return on average tangible<br> common equity (Adj. ROATCE) (1)(2)	11.24		11.08		11.92		10.52		11.97				11.20		14.00
Net interest rate spread (2)	2.87		2.83		2.76		2.67		2.42				2.79		2.48
Net interest margin (2)	3.60		3.58		3.46		3.38		3.21				3.51		3.29
Efficiency ratio	55.34		55.69		60.85		61.26		56.70				58.11		60.24
Efficiency ratio, as adjusted (1)	55.34		55.66		60.85		61.26		56.70				58.10		57.39
Noninterest income to average total <br> assets (2)	0.40		0.37		0.33		0.36		0.37				0.37		0.22
Noninterest income to total revenue	10.36		9.86		9.03		10.09		10.74				9.85		6.46
Adjusted noninterest income to total<br> adjusted revenue (1)	10.36		9.91		9.03		10.09		10.74				9.86		10.89
Noninterest expense to average total assets (2)	2.13		2.11		2.21		2.19		1.94				2.16		2.02
Average interest-earning assets to average<br> interest-bearing liabilities	130.41		129.16		126.50		126.31		127.90				128.13		127.70
Average equity to average total assets	11.22		11.08		9.37		9.46		9.20				10.31		8.65
Asset Quality Data:
Net charge-offs to average LHFI (2)	0.00	%	0.03	%	0.06	%	0.00	%	(0.02	)	%		0.02	%	0.01	%
Net charge-offs to total average loans (2)	0.00		0.03		0.05		0.00		(0.02	)			0.02		0.01
Total allowance for credit losses<br> to total LHFI	1.16		1.16		1.15		1.16		1.21				1.16		1.21
Total allowance for credit losses<br> to total loans	1.05		1.01		1.01		1.03		1.08				1.05		1.08
Total allowance for credit losses<br> to nonperforming loans	102.39		127.03		118.99		117.11		114.07				102.39		114.07
Nonperforming loans to gross LHFI	1.13		0.91		0.96		0.99		1.06				1.13		1.06
Nonperforming assets to total assets	0.79		0.63		0.66		0.70		0.76				0.79		0.76
Adjusted nonperforming assets to total<br> assets (1)	0.62		0.43		0.46		0.49		0.53				0.62		0.53
Balance Sheet and Capital Ratios:
Loan-to-deposit ratio	89.97	%	91.53	%	88.21	%	85.65	%	86.30		%		89.97	%	86.30	%
Noninterest-bearing deposits to<br> total deposits	15.71		16.08		15.92		15.52		16.51				15.71		16.51
Total shareholders' equity to total assets	11.25		11.10		9.43		9.23		9.30				11.25		9.30
Tangible common equity to tangible<br> assets (1)	11.06		10.91		9.22		9.01		9.08				11.06		9.08
Tier 1 leverage ratio (3)	11.18		11.15		10.22		10.62		10.64				11.18		10.64
Common equity tier 1 ratio (3)	12.30		11.94		11.09		11.55		12.07				12.30		12.07
Tier 1 risk-based capital ratio (3)	12.30		11.94		11.09		11.55		12.07				12.30		12.07
Total risk-based capital ratio (3)	13.31		12.90		12.04		12.52		12.97				13.31		12.97
Other:
Number of branches	11		11		11		11		11				11		11
Number of full-time equivalent<br> employees	196		194		188		180		181				189		180

All values are in US Dollars.

(1) Considered non-GAAP financial measure - See "Non-GAAP Financial Measures” and reconciliation of GAAP to non-GAAP financial measures in tables 10A - 10I.

(2) Represents annualized data.

(3) Ratios are for Coastal States Bank only. Ratios for December 31, 2025 are preliminary.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Quarter End Balance Sheets (unaudited)													Table 2
	December 31,			September 30,			June 30,			March 31,			December 31,
(dollars in thousands)	2025			2025			2025			2025			2024
Assets
Cash and due from banks	$	41,538		$	20,088		$	23,245		$	19,380		$	37,320
Federal funds sold		38,229			6,191			20,045			79,153			30,641
Investment securities (1)		339,262			342,990			338,601			332,312			342,750
Loans held for sale (LHFS)		170,933			231,593			209,101			187,481			174,033
Loans held for investment (LHFI)		1,617,315			1,552,976			1,527,199			1,472,232			1,409,443
Allowance for credit losses on LHFI		(18,743	)		(18,028	)		(17,497	)		(17,104	)		(17,118	)
Loans held for investment, net		1,598,572			1,534,948			1,509,702			1,455,128			1,392,325
Bank-owned life insurance		48,296			47,833			47,373			46,924			46,484
Premises, furniture and equipment, net		18,122			18,186			18,166			17,837			17,796
Deferred tax asset		16,370			16,262			17,211			17,123			18,148
Goodwill & intangible assets (2)		6,262			6,186			6,190			6,199			6,386
Other assets		29,002			31,112			31,611			28,854			32,829
Total assets	$	2,306,586		$	2,255,389		$	2,221,245		$	2,190,391		$	2,098,712
Liabilities and shareholders' equity
Liabilities
Deposits
Noninterest-bearing transaction accounts	$	312,251		$	313,604		$	313,386		$	300,678		$	302,907
Interest-bearing transaction accounts		214,620			198,753			209,816			191,452			181,068
Savings and money market		673,609			634,826			628,729			650,050			591,626
Time deposits		787,204			802,489			816,370			795,513			759,201
Total deposits		1,987,684			1,949,672			1,968,301			1,937,693			1,834,802
Federal Home Loan Bank of <br> Atlanta advances		30,000			25,000			-			-			15,000
Subordinated debt, net		-			-			14,753			14,741			14,730
Revolving commercial line of credit, net		-			-			-			5,997			11,995
Other liabilities		29,373			30,279			28,826			29,856			26,953
Total liabilities		2,047,057			2,004,951			2,011,880			1,988,287			1,903,480
Shareholders' equity
Voting common stock		10,868			10,449			8,107			8,102			8,098
Nonvoting common stock		1,112			1,530			2,172			2,172			2,172
Capital surplus		189,882			189,654			159,267			158,997			158,755
Accumulated income		66,886			59,750			53,009			47,044			41,994
Accumulated other comprehensive loss		(9,219	)		(10,945	)		(13,190	)		(14,211	)		(15,787	)
Total shareholders' equity		259,529			250,438			209,365			202,104			195,232
Total liabilities and shareholders' equity	$	2,306,586		$	2,255,389		$	2,221,245		$	2,190,391		$	2,098,712

(1) No ACL on investment securities was recognized for the periods presented; includes securities available-for-sale and non-marketable equity securities.

(2) Includes commercial mortgage servicing rights of $1.3 million, $1.2 million, $1.1 million, $1.1 million, and $1.2 million for December 31, 2025, September 30, 2025, June 30, 2025, March 31, 2025 and December 31, 2024, respectively.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Statements of Operations (unaudited)															Table 3
	Three Months Ended											Twelve Months Ended
	December 31,		September 30,			June 30,		March 31,		December 31,		December 31,			December 31,
(dollars in thousands)	2025		2025			2025		2025		2024		2025			2024
Interest income
Interest on cash and due from banks	$	109	$	129		$	111	$	135	$	122	$	484		$	534
Interest on federal funds sold		624		616			698		963		870		2,901			3,751
Interest and dividends on investment<br> securities		3,734		4,125			3,875		3,800		3,994		15,534			16,046
Interest and fees on LHFS		3,771		3,422			3,296		2,819		3,404		13,308			10,272
Interest and fees on LHFI		24,768		24,598			23,813		22,307		22,147		95,486			93,046
Total interest income		33,006		32,890			31,793		30,024		30,537		127,713			123,649
Interest expense
Deposits		12,925		13,274			13,251		12,830		13,498		52,280			53,443
Other borrowings		218		426			464		435		768		1,543			4,884
Total interest expense		13,143		13,700			13,715		13,265		14,266		53,823			58,327
Net interest income		19,863		19,190			18,078		16,759		16,271		73,890			65,322
Provision for credit losses		1,162		653			752		629		1,240		3,196			553
Net interest income after provision for<br> credit losses		18,701		18,537			17,326		16,130		15,031		70,694			64,769
Noninterest income
Mortgage banking related income		330		299			326		221		391		1,176			1,204
Interchange and card fee income		230		238			257		266		210		991			868
Service charges on deposit accounts		256		208			215		211		230		890			846
Bank-owned life insurance		462		461			449		440		440		1,812			1,664
Gain on sale of government guaranteed<br> loans		682		613			265		-		151		1,560			1,818
Losses on sale of available-for-sale<br> securities		-		(10	)		-		-		-		(10	)		(3,465	)
Other noninterest income		335		291			283		743		536		1,652			1,579
Total noninterest income		2,295		2,100			1,795		1,881		1,958		8,071			4,514
Noninterest expense
Salaries and employee benefits		7,644		6,985			6,997		6,694		6,759		28,320			26,187
Occupancy and equipment		864		850			814		788		762		3,316			2,995
Data processing		640		647			653		624		605		2,564			2,213
Other professional services		391		571			973		693		496		2,628			2,046
Software and other technology expense		808		788			719		703		774		3,018			2,742
Regulatory assessment		369		419			344		361		336		1,493			1,291
Other noninterest expense		1,546		1,596			1,592		1,556		603		6,290			4,594
Total noninterest expense		12,262		11,856			12,092		11,419		10,335		47,629			42,068
Net income before taxes		8,734		8,781			7,029		6,592		6,654		31,136			27,215
Income tax expense		1,598		2,040			1,064		1,542		950		6,244			5,311
Net income	$	7,136	$	6,741		$	5,965	$	5,050	$	5,704	$	24,892		$	21,904

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

QTD Average Balances and Yields/Rates (unaudited)																				Table 4
	Three Months Ended
	December 31, 2025								September 30, 2025								December 31, 2024
	Average					Yield/			Average					Yield/			Average					Yield/
(dollars in thousands)	Balance			Interest		Rate			Balance			Interest		Rate			Balance			Interest		Rate
Earning assets:
Cash and due from banks	$	21,271		$	109		2.03	%	$	21,058		$	129		2.43	%	$	19,900		$	122		2.44	%
Federal funds sold		62,215			624		3.98	%		52,240			616		4.68	%		71,061			870		4.87	%
Investment securities		340,416			3,734		4.35	%		339,619			4,125		4.82	%		355,832			3,994		4.47	%
Loans held for sale		198,119			3,771		7.55	%		167,424			3,422		8.11	%		171,457			3,404		7.90	%
Loans held for investment		1,567,471			24,768		6.27	%		1,543,363			24,598		6.32	%		1,399,357			22,147		6.30	%
Total earning assets		2,189,492			33,006		5.98	%		2,123,704			32,890		6.14	%		2,017,607			30,537		6.02	%
Noninterest-earning assets:
Allowance for credit losses on LHFI		(18,034	)							(17,504	)							(15,655	)
Bank-owned life insurance		48,038								47,569								46,243
Premises, furniture and equipment, net		18,160								18,241								17,854
Deferred tax asset		15,841								17,159								17,393
Goodwill & intangible assets		6,166								6,176								6,432
Other assets		28,695								30,633								27,483
Total noninterest-earning assets		98,866								102,274								99,750
Total assets	$	2,288,358							$	2,225,978							$	2,117,357
Interest-bearing liabilities:
Interest-bearing deposits	$	1,658,037		$	12,925		3.09	%	$	1,631,767		$	13,274		3.23	%	$	1,526,968		$	13,498		3.52	%
Federal Reserve Bank - BTFP		-			-		0.00	%		-			-		0.00	%		10,652			132		4.93	%
Federal funds purchased		8			-		0.00	%		-			-		0.00	%		-			-		0.00	%
Federal Home Loan Bank of <br> Atlanta advances		20,924			218		4.13	%		272			3		4.38	%		13,098			161		4.89	%
Revolving commercial line of credit, net		-			-		0.00	%		-			-		0.00	%		11,995			241		7.99	%
Subordinated debt, net		-			-		0.00	%		12,191			423		13.77	%		14,724			235		6.35	%
Total interest-bearing liabilities		1,678,969			13,143		3.11	%		1,644,230			13,700		3.31	%		1,577,437			14,267		3.60	%
Noninterest-bearing liabilities:
Noninterest-bearing deposits		323,687								306,133								318,071
Other liabilities		28,888								28,927								27,125
Total noninterest-bearing liabilities		352,575								335,060								345,196
Shareholders' equity		256,814								246,688								194,724
Total liabilities and shareholders' equity	$	2,288,358							$	2,225,978							$	2,117,357
Net interest income				$	19,863							$	19,190							$	16,270
Net interest spread							2.87	%							2.83	%							2.42	%
Net interest margin							3.60	%							3.58	%							3.21	%
Cost of total deposits (1)							2.59	%							2.72	%							2.91	%
Cost of total funding (1)							2.60	%							2.79	%							2.99	%

(1) Includes noninterest-bearing deposits.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

YTD Average Balances and Yields/Rates (unaudited)
	Twelve Months Ended
	December 31, 2025								December 31, 2024
	Average					Yield/			Average					Yield/
(dollars in thousands)	Balance			Interest		Rate			Balance			Interest		Rate
Earning assets:
Cash and due from banks	$	21,449		$	484		2.26	%	$	20,546		$	534		2.60	%
Federal funds sold		66,287			2,901		4.38	%		69,490			3,751		5.40	%
Investment securities		338,498			15,534		4.59	%		352,681			16,046		4.55	%
Loans held for sale		167,670			13,308		7.94	%		123,310			10,272		8.33	%
Loans held for investment		1,511,831			95,486		6.32	%		1,418,022			93,046		6.56	%
Total earning assets		2,105,735			127,713		6.07	%		1,984,049			123,649		6.23	%
Noninterest-earning assets:
Allowance for credit losses on LHFI		(17,444	)							(15,865	)
Bank-owned life insurance		47,354								45,597
Premises, furniture and equipment, net		18,073								17,725
Deferred tax asset		16,991								19,023
Goodwill & intangible assets		6,209								6,372
Other assets		29,624								30,352
Total noninterest-earning assets		100,807								103,204
Total assets	$	2,206,542							$	2,087,253
Interest-bearing liabilities:
Interest-bearing deposits	$	1,621,049		$	52,280		3.23	%	$	1,468,164		$	53,443		3.64	%
Federal Reserve Bank - BTFP		-			-		0.00	%		53,361			2,616		4.90	%
Federal funds purchased		11			1		9.09	%		-			-		0.00	%
Federal Home Loan Bank of <br> Atlanta advances		8,123			350		4.31	%		4,658			238		5.11	%
Revolving commercial line of credit, net		3,845			300		7.80	%		12,780			1,090		8.53	%
Subordinated debt, net		10,383			892		8.59	%		14,706			940		6.39	%
Total interest-bearing liabilities		1,643,411			53,823		3.28	%		1,553,669			58,327		3.75	%
Noninterest-bearing liabilities:
Noninterest-bearing deposits		307,464								323,949
Other liabilities		28,182								29,007
Total noninterest-bearing liabilities		335,646								352,956
Shareholders' equity		227,485								180,628
Total liabilities and shareholders' equity	$	2,206,542							$	2,087,253
Net interest income				$	73,890							$	65,322
Net interest spread							2.79	%							2.48	%
Net interest margin							3.51	%							3.29	%
Cost of total deposits (1)							2.71	%							2.98	%
Cost of total funding (1)							2.76	%							3.11	%

(1) Includes noninterest-bearing deposits.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Loan Data (unaudited)																					Table 6
	As of the Quarter Ended
	December 31, 2025					September 30, 2025					June 30, 2025					March 31, 2025					December 31, 2024
(dollars in thousands)	Amount		% of Total			Amount		% of Total			Amount		% of Total			Amount		% of Total			Amount		% of Total
Loans held for investment ("LHFI"):
Commercial Loans
Acquisition, development and<br> construction	$	119,352		7.4	%	$	106,787		6.9	%	$	100,528		6.6	%	$	76,453		5.2	%	$	72,520		5.2	%
Income producing CRE		378,179		23.4			371,670		23.9			372,142		24.4			352,693		24.0			321,558		22.8
Owner-occupied CRE		92,787		5.7			96,287		6.2			91,147		6.0			90,204		6.1			94,573		6.7
Senior housing		259,529		16.1			223,719		14.4			236,474		15.5			245,292		16.7			234,081		16.6
Commercial and industrial		145,380		9.0			135,039		8.7			131,716		8.6			145,784		9.8			141,626		10.0
Retail Loans
Marine vessels		312,096		19.3			318,246		20.5			301,327		19.7			284,305		19.3			263,657		18.6
Residential mortgages		199,991		12.4			190,220		12.3			185,527		12.1			176,794		12.1			174,099		12.5
Cash value life insurance LOC		87,172		5.4			90,115		5.8			87,135		5.7			80,503		5.5			86,844		6.2
Other consumer		22,829		1.4			20,893		1.4			21,203		1.4			20,204		1.4			20,485		1.5
Gross loans held for investment	$	1,617,315		100.0	%	$	1,552,976		100.0	%	$	1,527,199		100.0	%	$	1,472,232		100.0	%	$	1,409,443		100.0	%
Core LHFI		1,561,791					1,492,992					1,464,200					1,406,199					1,342,073
Acquired LHFI (1)		55,524					59,984					62,999					66,033					67,370
Gross loans held for investment	$	1,617,315				$	1,552,976				$	1,527,199				$	1,472,232				$	1,409,443
Allowance for credit losses on LHFI		18,743					18,028					17,497					17,104					17,118
Net loans held for investment	$	1,598,572				$	1,534,948				$	1,509,702				$	1,455,128				$	1,392,325
Total loans held-for-sale		170,933					231,593					209,101					187,481					174,033
Total loans	$	1,788,248				$	1,784,569				$	1,736,300				$	1,659,713				$	1,583,476

(1) Includes loans acquired through business combinations.

Nonperforming Assets (unaudited)
	As of the Quarter Ended
(dollars in thousands)	December 31, 2025			September 30, 2025			June 30, 2025			March 31, 2025			December 31, 2024
Nonaccrual loans	$	18,306		$	14,171		$	14,611		$	14,599		$	14,957
Past due loans 90 days and still accruing		-			21			93			6			49
Total nonperforming loans	$	18,306		$	14,192		$	14,704		$	14,605		$	15,006
Other real estate owned		-			-			-			765			864
Total nonperforming assets	$	18,306		$	14,192		$	14,704		$	15,370		$	15,870
Nonperforming loans to gross LHFI		1.13	%		0.91	%		0.96	%		0.99	%		1.06	%
Nonaccrual loans to total assets		0.79	%		0.63	%		0.66	%		0.67	%		0.71	%
Nonperforming assets to total assets		0.79	%		0.63	%		0.66	%		0.70	%		0.76	%

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Allowance for Credit Losses (unaudited)																			Table 8
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,			December 31,
(dollars in thousands)	2025			2025			2025			2025			2024			2025			2024
Allowance for credit losses on LHFI
Balance, beginning of period	$	18,028		$	17,497		$	17,104		$	17,118		$	15,615		$	17,118		$	15,465
Net charge-offs/(recoveries):
Commercial Loans
Acquisition, development and<br> construction		-			-			-			-			-			-			-
Income producing CRE		-			-			-			-			-			-			-
Owner-occupied CRE		-			-			-			-			(53	)		-			(53	)
Senior housing		-			-			-			-			-			-			-
Commercial and industrial		(4	)		(29	)		19			1			3			(13	)		129
Retail Loans
Marine vessels		-			162			-			-			-			162			36
Residential mortgages		(29	)		(2	)		(2	)		(2	)		(2	)		(35	)		(15	)
Cash value life insurance LOC		-			-			-			-			-			-			-
Other consumer		20			(6	)		191			16			(25	)		221			(1	)
Total net charge-offs/(recoveries)	$	(13	)	$	125		$	208		$	15		$	(77	)	$	335		$	96
Provision for loan credit losses		702			656			601			1			1,426			1,960			1,749
Balance, ending of period	$	18,743		$	18,028		$	17,497		$	17,104		$	17,118		$	18,743		$	17,118
Allowance for credit losses for unfunded commitments
Period beginning balance	$	3,496		$	3,499		$	3,348		$	2,720		$	2,906		$	2,720		$	3,916
Provision (recovery) for credit losses		460			(3	)		151			628			(186	)		1,236			(1,196	)
Period ending balance	$	3,956		$	3,496		$	3,499		$	3,348		$	2,720		$	3,956		$	2,720
Balance, end of period - Allowance for credit<br> losses: LHFI and unfunded commitments	$	22,699		$	21,524		$	20,996		$	20,452		$	19,838		$	22,699		$	19,838
Total loans held for investment	$	1,617,315		$	1,552,976		$	1,527,199		$	1,472,232		$	1,409,443		$	1,617,315		$	1,409,443
Credit Analysis
Net charge-offs to average LHFI		0.00	%		0.03	%		0.06	%		0.00	%		(0.02	)%		0.02	%		0.01	%
Total allowance for credit losses on LHFI to<br> total LHFI		1.16	%		1.16	%		1.15	%		1.16	%		1.21	%		1.16	%		1.21	%
Total allowance for credit losses on LHFI to<br> nonaccrual loans		102.39	%		127.22	%		119.75	%		117.16	%		114.45	%		102.39	%		114.45	%
Total allowance for credit losses on LHFI to<br> total nonperforming loans		102.39	%		127.03	%		118.99	%		117.11	%		114.07	%		102.39	%		114.07	%

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Loan Risk Ratings (1) (2) (unaudited)
	As of the Quarter Ended
(dollars in thousands)	December 31, 2025		September 30, 2025		June 30, 2025		March 31, 2025		December 31, 2024
Acquisition, development and<br> construction (1)
Pass	$	119,352	$	106,787	$	100,528	$	76,453	$	72,520
Special mention		-		-		-		-		-
Substandard		-		-		-		-		-
Total acquisition, development<br> and construction	$	119,352	$	106,787	$	100,528	$	76,453	$	72,520
Income producing CRE (1)
Pass	$	377,711	$	370,788	$	371,255	$	352,281	$	321,146
Special mention		-		-		-		-		-
Substandard		468		882		887		412		412
Total income producing	$	378,179	$	371,670	$	372,142	$	352,693	$	321,558
Owner-occupied CRE (1)
Pass	$	82,959	$	86,533	$	81,244	$	83,711	$	87,906
Special mention		2,739		3,579		3,612		-		-
Substandard		7,089		6,175		6,291		6,493		6,667
Total owner-occupied	$	92,787	$	96,287	$	91,147	$	90,204	$	94,573
Senior housing (1)
Pass	$	236,816	$	205,330	$	217,971	$	208,922	$	190,084
Special mention		11,934		12,006		12,078		24,814		25,025
Substandard		10,779		6,383		6,425		11,556		18,972
Total senior housing	$	259,529	$	223,719	$	236,474	$	245,292	$	234,081
Commercial and industrial (2)
Pass	$	141,020	$	128,468	$	124,979	$	141,202	$	136,878
Special mention		212		2,402		2,199		-		36
Substandard		4,148		4,169		4,538		4,582		4,712
Total commercial and industrial	$	145,380	$	135,039	$	131,716	$	145,784	$	141,626
Marine vessels (2)
Performing	$	312,096	$	318,246	$	301,327	$	284,305	$	263,657
Nonperforming		-		-		-		-		-
Total marine vessels	$	312,096	$	318,246	$	301,327	$	284,305	$	263,657
Residential mortgages (2)
Performing	$	199,601	$	190,059	$	185,162	$	176,633	$	173,834
Nonperforming		390		161		365		161		265
Total residential mortgages	$	199,991	$	190,220	$	185,527	$	176,794	$	174,099
Cash value life insurance LOC (2)
Performing	$	87,172	$	90,115	$	87,135	$	80,503	$	86,844
Nonperforming		-		-		-		-		-
Total cash value life insurance<br> LOC	$	87,172	$	90,115	$	87,135	$	80,503	$	86,844
Other consumer (2)
Performing	$	22,829	$	20,872	$	21,203	$	20,204	$	20,442
Nonperforming		-		21		-		-		43
Total other consumer	$	22,829	$	20,893	$	21,203	$	20,204	$	20,485
Gross loans held for investment	$	1,617,315	$	1,552,976	$	1,527,199	$	1,472,232	$	1,409,443

(1) There were no commercial loans classified as doubtful.

(2) Retail loans are classified as either performing or nonperforming.

Non-GAAP Financial Measures

The measures entitled return on average tangible common equity, tangible book value per share, tangible common equity, tangible assets, adjusted nonperforming assets to total assets, adjusted nonperforming assets, adjusted net income, adjusted basic earnings per share, adjusted diluted earnings per share, pre-tax, pre-provision net revenue ("PPNR"), adjusted return on average assets, adjusted return on average equity, efficiency ratio, as adjusted, adjusted return on average tangible common equity, adjusted noninterest income to total revenue, tangible common equity to tangible assets and core deposits are not measures recognized under accounting principles generally accepted in the United States of America (“GAAP”) and therefore are considered non-GAAP financial measures. The most comparable GAAP measures to these measures are return on average shareholders’ equity, book value per share, total shareholders’ equity, total assets, total nonperforming assets to total assets, total nonperforming assets, net income, basic earnings per share, diluted earnings per share, net income, return on average assets, return on average equity, the efficiency ratio, return on average equity, noninterest income to total revenue, total common equity to total assets, and total deposits, respectively.

Management believes that these non-GAAP financial measures and the information they provide are useful to investors since these measures permit investors to view the Company’s performance using the same tools that management uses to evaluate the Company’s past performance and prospects for future performance. While management believes that these non-GAAP financial measures are useful in evaluating our performance, this information should be considered as supplemental and not as a substitute for or superior to the related financial information prepared in accordance with GAAP. Additionally, these non-GAAP financial measures should be considered as additional views of the way the Company’s financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Non-GAAP Reconciliations

Tangible Book Value per Share / Tangible Common Equity to Tangible Assets (unaudited)																			Table 10A
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,				December 31,
(dollars in thousands, except per share data)	2025			2025			2025			2025			2024			2025				2024
Tangible Common Equity:
Total shareholders' equity	$	259,529		$	250,438		$	209,365		$	202,104		$	195,232		$	259,529			$	195,232
Less: Goodwill and intangibles		(6,262	)		(6,186	)		(6,190	)		(6,199	)		(6,386	)		(6,262	)			(6,386	)
Adjusted for: Mortgage servicing<br> rights		1,266			1,156			1,122			1,093			1,237			1,266				1,237
Tangible Common Equity	$	254,533		$	245,408		$	204,297		$	196,998		$	190,083		$	254,533			$	190,083
Common shares outstanding		11,980,412			11,978,921			10,278,921			10,274,271			10,270,146			11,980,412				10,270,146
Book value per common share		21.66			20.91			20.37			19.67			19.01			21.66				19.01
Tangible book value per common <br> share		21.25			20.49			19.88			19.17			18.51			21.25				18.51
Tangible assets:
Total assets	$	2,306,586		$	2,255,389		$	2,221,245		$	2,190,391		$	2,098,712		$	2,306,586			$	2,098,712
Less: Goodwill and intangibles		(6,262	)		(6,186	)		(6,190	)		(6,199	)		(6,386	)		(6,262	)			(6,386	)
Adjusted for: Mortgage servicing<br> rights		1,266			1,156			1,122			1,093			1,237			1,266				1,237
Tangible assets	$	2,301,590		$	2,250,359		$	2,216,177		$	2,185,285		$	2,093,563		$	2,301,590			$	2,093,563
Tangible common equity to<br> tangible assets		11.06	%		10.91	%		9.22	%		9.01	%		9.08	%		11.06	%			9.08	%
ROATCE / Adjusted ROATCE (unaudited)																			Table 10B
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,				December 31,
(dollars in thousands)	2025			2025			2025			2025			2024			2025				2024
Net income	$	7,136		$	6,741		$	5,965		$	5,050		$	5,704		$	24,892			$	21,904
Average shareholders' equity		256,814			246,688			205,837			199,763			194,724			227,485				180,628
Return on average shareholders'<br> equity (1)		11.02	%		10.84	%		11.62	%		10.25	%		11.65	%		10.94	%			12.13	%
Average Tangible Common Equity:
Average shareholders' equity	$	256,814		$	246,688		$	205,837		$	199,763		$	194,724		$	227,485			$	180,628
Less: Average goodwill and<br> intangibles		(6,166	)		(6,176	)		(6,168	)		(6,328	)		(6,432	)		(6,209	)			(6,372	)
Adjusted for: Average mortgage <br> servicing rights		1,155			1,128			1,082			1,198			1,263			1,141				1,133
Average tangible common equity	$	251,803		$	241,640		$	200,751		$	194,633		$	189,555		$	222,417			$	175,389
Return on average tangible common (1)<br> shareholders' equity		11.24	%		11.07	%		11.92	%		10.52	%		11.97	%		11.19	%			12.49	%
Net income	$	7,136		$	6,741		$	5,965		$	5,050		$	5,704		$	24,892			$	21,904
Adjusted for:
Loss on sale of AFS <br> securities, net of tax (2)		-			8			-			-			-			8				2,654
Adjusted net income	$	7,136		$	6,749		$	5,965		$	5,050		$	5,704		$	24,900			$	24,558
Average tangible common equity	$	251,803		$	241,640		$	200,751		$	194,633		$	189,555		$	222,417			$	175,389
Adjusted return on average tangible<br> common equity (1)		11.24	%		11.08	%		11.92	%		10.52	%		11.97	%		11.20	%			14.00	%

(1) Represents annualized data.

(2) 2024 consists of loss on sale of AFS securities due to non-routine portfolio restructuring.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Non-GAAP Reconciliations

Efficiency Ratio, as Adjusted / Noninterest Income to Total Revenue (unaudited)
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,			December 31,
(dollars in thousands)	2025			2025			2025			2025			2024			2025			2024
GAAP-based efficiency ratio		55.34	%		55.69	%		60.85	%		61.26	%		56.70	%		58.11	%		60.24	%
Net interest income	$	19,863		$	19,190		$	18,078		$	16,759		$	16,271		$	73,890		$	65,322
Noninterest income		2,295			2,100			1,795			1,881			1,958			8,071			4,514
Adjusted for:
Loss on sale of AFS<br> securities (1)		-			10			-			-			-			10			3,465
Adjusted revenue	$	22,158		$	21,300		$	19,873		$	18,640		$	18,229		$	81,971		$	73,301
Total noninterest expense		12,262			11,856			12,092			11,419			10,335			47,629			42,068
Adjusted noninterest expense	$	12,262		$	11,856		$	12,092		$	11,419		$	10,335		$	47,629		$	42,068
Efficiency ratio, as adjusted		55.34	%		55.66	%		60.85	%		61.26	%		56.70	%		58.10	%		57.39	%
Noninterest income to total revenue		10.36	%		9.86	%		9.03	%		10.09	%		10.74	%		9.85	%		6.46	%
Adjusted noninterest income to<br> total adjusted revenue		10.36	%		9.91	%		9.03	%		10.09	%		10.74	%		9.86	%		10.89	%

(1) 2024 consists of loss on sale of AFS securities due to non-routine portfolio restructuring.

Adjusted Net Income / Adjusted Return on Average Assets (unaudited)
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,			December 31,
(dollars in thousands)	2025			2025			2025			2025			2024			2025			2024
Net income	$	7,136		$	6,741		$	5,965		$	5,050		$	5,704		$	24,892		$	21,904
Average assets		2,288,358			2,225,978			2,196,716			2,111,196			2,117,357			2,206,542			2,087,253
Return on average assets (1)		1.24	%		1.20	%		1.09	%		0.97	%		1.07	%		1.13	%		1.05	%
Net income	$	7,136		$	6,741		$	5,965		$	5,050		$	5,704		$	24,892		$	21,904
Adjusted for:
Loss on sale of AFS <br> securities, net of tax (2)		-			8			-			-			-			8			2,654
Adjusted net income	$	7,136		$	6,749		$	5,965		$	5,050		$	5,704		$	24,900		$	24,558
Average assets	$	2,288,358		$	2,225,978		$	2,196,716		$	2,111,196		$	2,117,357		$	2,206,542		$	2,087,253
Adjusted return on average<br> assets (1)		1.24	%		1.20	%		1.09	%		0.97	%		1.07	%		1.13	%		1.18	%

(1) Represents annualized data.

(2) 2024 consists of loss on sale of AFS securities due to non-routine portfolio restructuring.

Adjusted Net Income / Adjusted Return on Average Shareholders' Equity (unaudited)
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,			December 31,
(dollars in thousands)	2025			2025			2025			2025			2024			2025			2024
Net income	$	7,136		$	6,741		$	5,965		$	5,050		$	5,704		$	24,892		$	21,904
Average shareholders' equity		256,814			246,688			205,837			199,763			194,724			227,485			180,628
Return on average<br> shareholders' equity (1)		11.02	%		10.84	%		11.62	%		10.25	%		11.65	%		10.94	%		12.13	%
Net income	$	7,136		$	6,741		$	5,965		$	5,050		$	5,704		$	24,892		$	21,904
Adjusted for:
Loss on sale of AFS <br> securities, net of tax (2)		-			8			-			-			-			8			2,654
Adjusted net income	$	7,136		$	6,749		$	5,965		$	5,050		$	5,704		$	24,900		$	24,558
Average shareholders' equity	$	256,814		$	246,688		$	205,837		$	199,763		$	194,724		$	227,485		$	180,628
Adjusted return on average<br> shareholders' equity (1)		11.02	%		10.85	%		11.62	%		10.25	%		11.65	%		10.95	%		13.60	%

(1) Represents annualized data.

(2) 2024 consists of loss on sale of AFS securities due to non-routine portfolio restructuring.

COASTALSOUTH BANCSHARES, INC. AND SUBSIDIARY

FINANCIAL TABLES

Non-GAAP Reconciliations

Adjusted Net Income / Adjusted Basic EPS / Adjusted Diluted EPS (unaudited)
	As of and for the Three Months Ended										As of and for the Year Ended
	December 31,		September 30,		June 30,		March 31,		December 31,		December 31,		December 31,
(dollars in thousands, except per share data)	2025		2025		2025		2025		2024		2025		2024
Net income	$	7,136	$	6,741	$	5,965	$	5,050	$	5,704	$	24,892	$	21,904
Average common shares<br> outstanding - basic		11,979,715		11,941,965		10,277,721		10,273,125		10,250,446		11,125,064		10,198,298
Basic earnings per share	$	0.60	$	0.57	$	0.58	$	0.49	$	0.56	$	2.24	$	2.15
Average common shares<br> outstanding - diluted		12,387,619		12,325,462		10,612,255		10,642,078		10,596,364		11,520,215		10,470,633
Diluted earnings per share	$	0.58	$	0.54	$	0.57	$	0.47	$	0.54	$	2.16	$	2.09
Net income	$	7,136	$	6,741	$	5,965	$	5,050	$	5,704	$	24,892	$	21,904
Adjusted for:
Loss on sale of AFS securities,<br> net of tax (1)		-		8		-		-		-		8		2,654
Adjusted net income	$	7,136	$	6,749	$	5,965	$	5,050	$	5,704	$	24,900	$	24,558
Adjusted basic earnings per share	$	0.60	$	0.57	$	0.58	$	0.49	$	0.56	$	2.24	$	2.41
Adjusted diluted earnings per share	$	0.58	$	0.54	$	0.57	$	0.47	$	0.54	$	2.16	$	2.35

(1) 2024 consists of loss on sale of AFS securities due to non-routine portfolio restructuring.

Adjusted Nonperforming Assets to Total Assets (unaudited)
	As of and for the Three Months Ended															As of and for the Year Ended
	December 31,			September 30,			June 30,			March 31,			December 31,			December 31,			December 31,
(dollars in thousands)	2025			2025			2025			2025			2024			2025			2024
Total nonperforming assets	$	18,306		$	14,192		$	14,704		$	15,370		$	15,870		$	18,306		$	15,870
Total assets		2,306,586			2,255,389			2,221,245			2,190,391			2,098,712			2,306,586			2,098,712
GAAP-based nonperforming assets<br> to total assets		0.79	%		0.63	%		0.66	%		0.70	%		0.76	%		0.79	%		0.76	%
Total nonperforming assets	$	18,306		$	14,192		$	14,704		$	15,370		$	15,870		$	18,306		$	15,870
Adjusted for:
Guaranteed portions of nonaccrual<br> loans		4,089			4,457			4,583			4,692			4,811			4,089			4,811
Adjusted total nonperforming assets	$	14,217		$	9,735		$	10,121		$	10,678		$	11,059		$	14,217		$	11,059
Total assets	$	2,306,586		$	2,255,389		$	2,221,245		$	2,190,391		$	2,098,712		$	2,306,586		$	2,098,712
Adjusted nonperforming assets to <br> total assets		0.62	%		0.43	%		0.46	%		0.49	%		0.53	%		0.62	%		0.53	%
PPNR (unaudited)													Table 10H
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	As of and for the Three Months Ended										As of and for the Year Ended
	December 31,		September 30,		June 30,		March 31,		December 31,		December 31,			December 31,
(dollars in thousands)	2025		2025		2025		2025		2024		2025			2024
Net income (GAAP-based)	$	7,136	$	6,741	$	5,965	$	5,050	$	5,704	$	24,892		$	21,904
Plus:
Income tax expense		1,598		2,040		1,064		1,542		950		6,244			5,311
Provision (recovery) for credit losses		1,162		653		752		629		1,240		3,196			553
Pre-tax, pre-provision net revenue	$	9,896	$	9,434	$	7,781	$	7,221	$	7,894	$	34,332		$	27,768
Core Deposits (unaudited)													Table 10I
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	As of and for the Three Months Ended										As of and for the Year Ended
	December 31,		September 30,		June 30,		March 31,		December 31,		December 31,			December 31,
(dollars in thousands)	2025		2025		2025		2025		2024		2025			2024
Total Deposits	$	1,987,684	$	1,949,672	$	1,968,301	$	1,937,693	$	1,834,802	$	1,987,684		$	1,834,802
Less:
Brokered CDs		307,034		294,908		307,892		287,335		274,898		307,034			274,898
Core deposits (1)	$	1,680,650	$	1,654,764	$	1,660,409	$	1,650,358	$	1,559,904	$	1,680,650		$	1,559,904

(1) The Company defines its core deposits as total deposits, less brokered certificates of deposit.

CoastalSouth Bancshares, Inc. Third Quarter 2025 Investor Presentation October 20, 2025 January 20, 2026 Fourth Quarter 2025 Investor Presentation Exhibit 99.2

Disclosures Forward Looking Statements Statements in this Investor Presentation regarding future events and our expectations and beliefs about our future financial performance and financial condition, as well as trends in our business and markets, constitute “forward-looking statements” within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are not historical in nature and may be identified by references to a future period or periods by the use of the words “believe,” “expect,” “anticipate,” “intend,” “plan,” “estimate,” “project,” “outlook,” or words of similar meaning, or future or conditional verbs such as “will,” “would,” “should,” “could,” or “may.” The forward-looking statements in this Investor Presentation should not be relied on because they are based on current information and on assumptions that we make about future events and circumstances that are subject to a number of known and unknown risks and uncertainties that are often difficult to predict and beyond our control. As a result of those risks and uncertainties, and other factors, our actual financial results in the future could differ, possibly materially, from those expressed in or implied by the forward-looking statements contained in this Investor Presentation and could cause us to make changes to our future plans. Factors that might cause such differences include, but are not limited to: the impact of current and future economic conditions, particularly those affecting the financial services industry, including the effects of declines in the real estate market, high unemployment rates, inflationary pressures, elevated interest rates and slowdowns in economic growth, as well as the financial stress on borrowers as a result of the foregoing; potential impacts of any adverse developments in the banking industry, including any impacts on customer confidence, deposit outflows, liquidity and the regulatory response thereto; changes in the interest rate environment, including changes to the federal funds rate; changes in prices, values and sales volumes of residential and commercial real estate; competition in our markets that may result in increased funding costs or reduced earning assets yields, thus reducing margins and net interest income; interest rate fluctuations, which could have an adverse effect on the Company’s profitability; a breach in security of our information systems, including the occurrence of a cyber-attack incidents or deficiencies in cyber security; risks related to potential acquisitions; government actions or inactions, including a prolonged shutdown of the federal government, tariffs, or trade wars (including reduced consumer spending, lower economic growth or recession, reduced demand for U.S. exports, disruptions to supply chains, and decreased demand for other banking products and services), legislation or regulatory changes which could adversely affect the ability of the consolidated Company to conduct business combinations or new operations; changes in tax laws; significant turbulence or a disruption in the capital or financial markets and the effect of a fall in stock market prices on our investment securities; the effects of war or other conflicts, domestic civil unrest and tyranny, and changes in the overall geopolitical landscape; and adverse results from current or future litigation, regulatory examinations or other legal and/or regulatory actions, including as a result of the Company’s participation in and execution of government programs. Therefore, the Company can give no assurance that the results contemplated in the forward-looking statements will be realized. Additional information regarding these and other risks and uncertainties to which our business and future financial performance are subject is contained in the section titled “Cautionary Note Regarding Forward-Looking Statements” and “Risk Factors” in the Company’s final prospectus filed pursuant to Rule 424(b)(4) under the Securities Act of 1933, as amended, filed with the Securities and Exchange Commission (the “SEC”) on July 2, 2025 (Registration No. 333-287854), relating to our initial public offering, and in other documents that we file with the SEC from time to time, which are available on the SEC’s website, http://www.sec.gov. In addition, our actual financial results in the future may differ from those currently expected due to additional risks and uncertainties of which we are not currently aware or which we do not currently view as, but in the future may become, material to our business or operating results. Due to these and other possible uncertainties and risks, readers are cautioned not to place undue reliance on the forward-looking statements contained in this Investor Presentation or to make predictions based solely on historical financial performance. Any forward-looking statement speaks only as of the date on which it is made, and we do not undertake any obligation to update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. All forward-looking statements, express or implied, included in this Investor Presentation are qualified in their entirety by this cautionary statement.

Disclosures Non-GAAP Financial Measures In addition to results presented in accordance with U.S. generally accepted accounting principles (“GAAP”), this Investor Presentation contains certain non-GAAP financial measures. The Company believes that providing certain non-GAAP financial measures provides investors with information useful in understanding our financial performance, performance trends and financial position. Our management uses these measures for internal planning and forecasting purposes and we believe that our presentation and discussion, together with the accompanying reconciliations, allows investors, security analysts and other interested parties to view our performance and the factors and trends affecting our business in a manner similar to management. These non-GAAP measures should not be considered a substitute for GAAP measures and we strongly encourage investors to review our consolidated financial statements in their entirety and not to rely on any single financial measure to evaluate the Company. Non-GAAP financial measures have inherent limitations, are not uniformly applied and are not audited. 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. The delivery of this Investor Presentation will not, under any circumstances, create an implication that there has been no change in the affairs of the Company since the date of this Investor Presentation. The Company is not making any implied or express representation or warranty as to the accuracy or completeness of the information summarized herein or made available in connection with any further investigation of the Company. The Company expressly disclaims any and all liability which may be based on such information, errors therein or omission therefrom.

Company Overview Total Assets $2.31 Billion Total Deposits $1.99 Billion Total Loans $1.79 Billion Tier 1 Leverage(1) 11.18% CET1(1) 12.30% # of Banking Offices 11 Best-in-class growth profile with 1-year CAGR for Total Loans of 12.9% and 1-year CAGR for TBV(2)/Share of 14.8% Strong risk management and unwavering focus on credit quality Established and efficient community banking franchise Diversified business lines Scarcity value as one of only five major exchange traded banks headquartered in GA or SC between $1.5 - $5.0 billion in assets Capital ratios are for Coastal States Bank, a wholly-owned subsidiary of CoastalSouth Bancshares, Inc. Non-GAAP financial measure; for a reconciliation of Non-GAAP financial measures to their most directly comparable GAAP measure see the Appendix. CSB Strategic Expansion CSB Branch

Diluted EPS Return on Average Tangible Common Equity(1) Return on Average Assets Net Interest Margin Adj. Non-Performing Assets(1) / Total Assets Quarterly Highlights: Q4 2025 Non-GAAP financial measure; for a reconciliation of Non-GAAP financial measures to their most directly comparable GAAP measure see the Appendix. LHFI is defined as Loans held for investments. Billion in Total Assets QoQ Annualized LHFI(2) Growth Loan / Deposit Ratio QoQ Annualized TBV (1) per Share Growth Net Charge-Offs to Average LHFI $0.58 3.60% 14.70% $2.31 16.44% 89.97% 0.62% 11.24% 0.00% 1.24%

Strategic Expansion: Charleston, SC Charleston-North Charleston, SC MSA Overview (1) $23.1 billion in total deposits; 198 branches (2) Median household income of approximately $85 thousand in 2025; expected growth in household income 2026-2031 of 13.25% Projected population growth over the next five years of 7.48% Experiencing job growth at almost double the national average Civilian labor force grew approximately 3X more than the U.S. average from 2014-2024 Charleston was ranked “Best City in the U.S.” by Travel & Leisure magazine (2024) Business Strategy Focus on talent first by hiring the best bankers with deep roots in local markets Our initial three-member team is born and raised in Charleston and has a collective 50+ years of community banking experience in this market Deploy branch-light model and drive efficiency through our business first focus and use of technology Focus on C&I lending to help drive core deposit growth Target loan and deposit growth of $100 million in first three years of operations with the initial team Opportunistically look to expand through additional commercial banking, treasury management, and private banking hires This expansion builds upon an existing loan portfolio of approximately $43.4 million in the Charleston MSA Demographic information from Charleston Regional Development Alliance (crda.org), Federal Reserve Bank of St. Louis (fred.stlouisfed.org) and S&P Global. For the Charleston-North Charleston, SC MSA per FDIC Summary of Deposits as of June 30, 2025.

Loans Held for Investment Production $225.1 million in gross LHFI production for Q4 2025, $776.3 million in gross LHFI production year to date. Community Bank loan production is approximately 64% of total LHFI production for YTD 2025. YTD growth in Community Bank LHFI were approximately $92.9 million or 10.8% for the year. The weighted average coupon for new production was 7.04% for Q4 2025, 77 bps higher than the weighted average yield of 6.27% for the LHFI portfolio for Q4 2025. The Company defines production as original loan commitment, which includes both funded and unfunded loan commitments. Specialty LOBs within this chart include Marine Lending, Senior Housing Lending, and Government Guaranteed Lending.

Loan Portfolio Loan portfolio is well diversified across loan types and geographies and managed by a seasoned team of bankers and credit officers. Conservative relationship lending limits with well structured underwriting guidelines. CRE and ADC concentrations were 230% and 55% at the end of Q4 2025, well below regulatory guidelines. Will allow for continued organic expansion. Non-owner-occupied office loans totaled $28.1 million or 1.7% of total LHFI at the end of the Q4 2025. Average loan size is $1.3 million. For Q4 2025, there were no CRE charge-offs and CRE nonperforming loans were $18.3 million or 1.13% of total LHFI. Ratios are for Coastal States Bank. CRE Concentration ratio defined as Construction & Development, Multifamily, and Non-Owner Occupied CRE loans divided by Total Regulatory Capital. ADC concentration ratio is defined as Construction & Development loans divided by Total Regulatory Capital. Loan categories and total regulatory capital are determined using FFIEC call report guidelines. Ratios for the current quarter are preliminary. $1.8 B

Deposit Portfolio Reflects the effect of non-interest-bearing deposits. Non-GAAP financial measure; for a reconciliation of Non-GAAP financial measures to their most directly comparable GAAP measure see the Appendix. Average total deposits increased $44.1 million compared to the prior quarter and increased $137.0 million compared to the Q4 2024. Interest-bearing deposit costs decreased 14 bps compared to Q3 2025 and 43 bps compared Q4 2024. Decrease in deposit cost driven by active deposit relationship management and benefit of money market and CD repricing in conjunction with federal reserve rate cuts. Noninterest-bearing and interest-bearing transaction accounts were 26.8% of average total deposits during Q4 2025. Deposit balances sourced from Specialty Lines of Business totaled $52.7 million at the end of Q4 2025. Core deposits(2) represented 84.6% of total deposits at the end of Q4 2025.

Capital *Q4 2025 regulatory capital ratios are preliminary. (1) Capital ratios presented are for Coastal States Bank. (2) Non-GAAP financial measure; for a reconciliation of Non-GAAP financial measures to their most directly comparable GAAP measure see the Appendix. (3) Q3 and Q4 2025 include the impact of COSO’s IPO. Net unrealized securities losses in AOCI improved by $1.7 million to $11.4 million in Q4 2025. Tier 1 leverage ratio increased 3 bps to 11.18% as compared to Q3 2025; tangible common equity to total assets(2) increased 15 bps to 11.06%, as compared to Q3 2025. Regulatory capital ratios remain strong, providing opportunities for additional balance sheet expansion. CAGR 14.8%

Net Interest Margin (1) Annualized Net interest income increased $0.7 million compared to the prior quarter and $3.6 million compared to Q4 2024. In Q3 2025, the yield on investment securities was positively impacted by $225 thousand on certain corporate securities owned at a discount which were redeemed ahead of maturity; no such similar impact in Q4 2025. Strong loan production and disciplined pricing practices during 2025 have improved net interest income and net interest margin throughout 2025.

Interest Rate Sensitivity (1) Cycle-to-date reflects changes since third quarter 2024 and incorporates the decrease in the average Fed Funds Effective Target rate. Note: NM – Not Meaningful The cycle-to-date (1) beta on total loans, compared to the average Fed Funds Effective Target rate was 31%. The cycle-to-date (1) total deposit beta was 38%. Approximately 43.6% of variable rate structures of LHFI are floating (repricing within one quarter). Inclusive of fixed rate loans, approximately 50.4% of LHFI, or $815.3 million are scheduled to reprice or mature in the next twelve months, of which $721.4 million or 44.6% are scheduled to reprice in the next 3 months. Effective deposit re-pricing practices, cycle to date, have helped stabilize and improve margins. Loan and Deposit Betas(vs. Fed Effective) Cycle-to-Date (1) Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Average Fed Effective Rate 5.3% 4.7% 4.3% 4.3% 4.3% 3.9% Interest Bearing Deposit Costs 3.8% 3.5% 3.3% 3.3% 3.2% 3.1% Total Deposit Costs 3.1% 2.9% 2.8% 2.8% 2.7% 2.6% Interest Bearing Deposit Beta 50% NM 42.6% 61.2% NM NM 32.4% Total Deposit Beta 38% NM 32.7% 33.7% NM NM 30.1% Loan Yields (LHFI, LHFS) 6.8% 6.5% 6.5% 6.5% 6.5% 6.4% Loan Beta 31% NM 60.4% -12.0% NM NM 19.7%

Noninterest Income Gain on sale of government guaranteed loans (“GGL”) was $682 thousand for Q4 2025 compared to $613 thousand in Q3 2025. YTD GGL loan production was $57.3 million. At the end of Q4 2025, there are approximately $15.7 million loans that have been closed but have not been sold into the secondary market, including $12.7 million of multi-disbursement loans that may be saleable once fully funded. Mortgage banking income has remained consistent, despite a challenging mortgage environment with elevated rates and home prices. There were no sales of other assets or significant income from partnership investments during the current quarter, which impacts other noninterest income.

Noninterest Expense Q4 2025 efficiency ratio of 55.3%, down 35 bps from Q3 2025. Driven by higher revenue during the quarter. Salaries and benefits increased during the fourth quarter as the impact from new hires was realized and incentive accruals were updated to reflect performance. Professional fees decreased during the quarter due to lower expected audit fees, due to changes in the FDICIA compliance thresholds, decreased recruiting fees, and decreased other professional services costs. As consolidation continues within our markets, we see opportunities to expand our team by recruiting seasoned banking professionals who share our relationship-driven philosophy.

Credit Quality Net charge-offs (“NCO”) continue to be minimal, with an average ratio of NCO to average LHFI of 0.01% over the last 5 consecutive quarters. Nonperforming assets increased during the quarter due primarily to the downgrade of one senior housing loan. Higher risk loans, defined as special mention plus substandard accruing, were 1.20%, down 19 basis points from the Q3 2025.

Allowance for Credit Losses The coverage level of the Allowance for Credit Losses (“ACL”) has remained relatively stable for the last several quarters. Net charge-off activity remains minimal. Changes in the provision for ACL are driven by the impact of net charge-offs, loan production volume and mix, and other model factors, such as updated economic forecasts. The Company carries an ACL on Loans for $18.7 million and an ACL for Unfunded Commitments of $4.0 million at December 31, 2025.

Appendix

Core Operating Principles We believe that by focusing on our five core values outlined below, we can create meaningful relationships between our Bank, team members, clients, and our communities Each of these relationships is critical to our financial success and supports our capacity to drive shareholder value Key drivers of COSO’s success include: Unwavering commitment to hiring the best local bankers Valuing entrepreneurial culture, ensuring daily actions are aligned with vision and values Communicating clearly and candidly Providing exceptional service and innovative solutions

Business Evolution & Milestones Government Guaranteed Lending business; loans made through U.S. Small Business Administration (“SBA”) and United States Department of Agriculture (“USDA”) programs As of March 31, 2018 As of March 31, 2021 Early History & Recapitalization Expansion in Key Southeast MSAs Positioning for Future Growth Founded in August 2004 in Hilton Head Island, SC Opened Savannah, GA branch; completed $15 million subordinated debt offering Hired new management team (formerly of C&S) in conjunction with $62 million recapitalization; added GGL (1) & Senior Housing businesses Acquired First Citizens Financial Corporation ($95 million in assets (2)) Completed $20 million common offering 2004 2017 2018 2019 2020 Acquired Cornerstone Bancshares, Inc. ($229 million in assets (3)); opened Alpharetta, GA and Sandy Springs, GA branches Repositioned Mt. Paran branch to Akers Mill, GA; added Marine Lending business 2021 2022 Completed $9 million common offering 2023 Opened Beaufort, SC branch; completed $12 million common offering 2024 Joined NYSE on July 2, 2025 with Initial Public Offering of $50.3 million, including underwriters' options 2025 2026 Expanded into Charleston, SC with addition of commercial banking team

Specialty Lines of Business

Non-GAAP Reconciliation Annualized data. Tangible Book Value per Share / Tangible Common Equity to Tangible Assets (unaudited) As of and for the Three Months Ended As of and for the Year Ended December 31, September 30, June 30, March 31, December 31, December 31, December 31, (dollars in thousands, except per share data) 2025 2025 2025 2025 2024 2025 2024 Tangible Common Equity: Total shareholders' equity $ 259,529 $ 250,438 $ 209,365 $ 202,104 $ 195,232 $ 259,529 $ 195,232 Less: Goodwill and intangibles (6,262) (6,186) (6,190) (6,199) (6,386) (6,262) (6,386) Adjusted for: Mortgage servicing rights 1,266 1,156 1,122 1,093 1,237 1,266 1,237 Tangible Common Equity $ 254,533 $ 245,408 $ 204,297 $ 196,998 $ 190,083 $ 254,533 $ 190,083 Common shares outstanding 11,980,412 11,978,921 10,278,921 10,274,271 10,270,146 11,980,412 10,270,146 Book value per common share 21.66 20.91 20.37 19.67 19.01 21.66 19.01 Tangible book value per common share 21.25 20.49 19.88 19.17 18.51 21.25 18.51 Tangible assets: Total assets $ 2,306,586 $ 2,255,389 $ 2,221,245 $ 2,190,391 $ 2,098,712 $ 2,306,586 $ 2,098,712 Less: goodwill and intangibles (6,262) (6,186) (6,190) (6,199) (6,386) (6,262) (6,386) Adjusted for: Mortgage servicing rights 1,266 1,156 1,122 1,093 1,237 1,266 1,237 Tangible assets $ 2,301,590 $ 2,250,359 $ 2,216,177 $ 2,185,285 $ 2,093,563 $ 2,301,590 $ 2,093,563 Tangible common equity to tangible assets 11.06% 10.91% 9.22% 9.01% 9.08% 11.06% 9.08% ROATCE / Adjusted ROATCE (unaudited) As of and for the Three Months Ended As of and for the Year Ended December 31, September 30, June 30, March 31, December 31, December 31, December 31, (dollars in thousands) 2025 2025 2025 2025 2024 2025 2024 Net income $ 7,136 $ 6,741 $ 5,965 $ 5,050 $ 5,704 $ 24,892 $ 21,904 Average shareholders' equity 256,814 246,688 205,837 199,763 194,724 227,485 180,628 Return on average shareholders' equity (1) 11.02% 10.84% 11.62% 10.25% 11.65% 10.94% 12.13% Average Tangible Common Equity: Average shareholders' equity $ 256,814 $ 246,688 $ 205,837 $ 199,763 $ 194,724 $ 227,485 $ 180,628 Less: Average goodwill and intangibles (6,166) (6,176) (6,168) (6,328) (6,432) (6,209) (6,372) Adjusted for: Average mortgage servicing rights 1,155 1,128 1,082 1,198 1,263 1,141 1,133 Average tangible common equity $ 251,803 $ 241,640 $ 200,751 $ 194,633 $ 189,555 $ 222,417 $ 175,389 Return on average tangible common (1) shareholders' equity 11.24% 11.07% 11.92% 10.52% 11.97% 11.19% 12.49%

Non-GAAP Reconciliation (cont.) The Company defines Core deposits as Total deposits less Brokered CDs. Adjusted Nonperforming Assets to Total Assets (unaudited) As of and for the Three Months Ended As of and for the Year Ended December 31, September 30, June 30, March 31, December 31, December 31, December 31, (dollars in thousands) 2025 2025 2025 2025 2024 2025 2024 Total nonperforming assets $ 18,306 $ 14,192 $ 14,704 $ 15,370 $ 15,870 $ 18,306 $ 15,870 Total assets 2,306,586 2,255,389 2,221,245 2,190,391 2,098,712 2,306,586 2,098,712 GAAP-based nonperforming assets to total assets 0.79% 0.63% 0.66% 0.70% 0.76% 0.79% 0.76% Total nonperforming assets $ 18,306 $ 14,192 $ 14,704 $ 15,370 $ 15,870 $ 18,306 $ 15,870 Adjusted for: Guaranteed portions of nonaccrual loans 4,089 4,457 4,583 4,692 4,811 4,089 4,811 Adjusted total nonperforming assets $ 14,217 $ 9,735 $ 10,121 $ 10,678 $ 11,059 $ 14,217 $ 11,059 Total assets $ 2,306,586 $ 2,255,389 $ 2,221,245 $ 2,190,391 $ 2,098,712 $ 2,306,586 $ 2,098,712 Adjusted nonperforming assets to total assets 0.62% 0.43% 0.46% 0.49% 0.53% 0.62% 0.53% PPNR (unaudited) As of and for the Three Months Ended As of and for the Year Ended December 31, September 30, June 30, March 31, December 31, December 31, December 31, (dollars in thousands) 2025 2025 2025 2025 2024 2025 2024 Net income (GAAP-based) $ 7,136 $ 6,741 $ 5,965 $ 5,050 $ 5,704 $ 24,892 $ 21,904 Plus: Income tax expense 1,598 2,040 1,064 1,542 950 6,244 5,311 Provision (recovery) for credit losses 1,162 653 752 629 1,240 3,196 553 Pre-tax, pre-provision net revenue ("PPNR") $ 9,896 $ 9,434 $ 7,781 $ 7,221 $ 7,894 $ 34,332 $ 27,768 Core Deposits (unaudited) As of and for the Three Months Ended As of and for the Year Ended December 31, September 30, June 30, March 31, December 31, December 31, December 31, (dollars in thousands) 2025 2025 2025 2025 2024 2025 2024 Total Deposits $ 1,987,684 $ 1,949,672 $ 1,968,301 $ 1,937,693 $ 1,834,802 $ 1,987,684 $ 1,834,802 Less: Brokered CDs 307,034 294,908 307,892 287,335 274,898 307,034 274,898 Core deposits (1) $ 1,680,650 $ 1,654,764 $ 1,660,409 $ 1,650,358 $ 1,559,904 $ 1,680,650 $ 1,559,904