Earnings Results 4Q23 January 25, 2024

Forward-Looking Statement & Non-GAAP Forward-Looking Statement This presentation contains forward-looking statements. These forward-looking statements represent plans, estimates, objectives, goals, guidelines, expectations, intentions, projections and statements of our beliefs concerning future events, business plans, objectives, expected operating results and the assumptions upon which those statements are based. Forward-looking statements include without limitation any statement that may predict, forecast, indicate or imply future results, performance or achievements, and are typically identified with words such as “may,” “could,” “should,” “will,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “aim,” “intend,” “plan,” or words or phases of similar meaning. We caution that the forward-looking statements are based largely on our expectations and are subject to a number of known and unknown risks and uncertainties that are subject to change based on factors which are, in many instances, beyond our control, including but not limited to the health of the national and local economies including the impact to the Company and its customers resulting from changes to, and the level of, inflation and interest rates; the Company’s ability to maintain and grow its deposit base; loan demand and continued portfolio performance; the impact of adverse developments at other banks, including bank failures, that impact general sentiment regarding the stability and liquidity of banks that could affect our financial performance and our stock price; changes to valuations of the Company’s assets and liabilities including the allowance for credit losses, earning assets, and intangible assets; changes to the availability of liquidity sources including borrowing lines and the ability to pledge or sell certain assets; the Company's ability to attract and retain skilled employees; customers' service expectations; cyber security risks; the Company's ability to successfully deploy new technology; the success of acquisitions and branch expansion; operational risks including the ability to detect and prevent errors and fraud; the effectiveness of the Company’s enterprise risk management framework; costs related to litigation; changes in laws, rules, regulations, or interpretations to which the Company is subject; the effects of severe weather events, pandemics, other public health crises, acts of war or terrorism, and other external events on our business. These and other important factors are detailed in various securities law filings made periodically by the Company, copies of which are available without charge on the SEC’s website at www.sec.gov and the on the investor relations section of the Company’s website at www.mypcbbank.com. Actual results, performance or achievements could differ materially from those contemplated, expressed, or implied by the forward-looking statements. Any forward- looking statements presented herein are made only as of the date of this presentation, and we do not undertake any obligation to update or revise any forward-looking statements to reflect changes in assumptions, the occurrence of unanticipated events, or otherwise, except as required by law. Non-GAAP Financial Measures This presentation contains non-GAAP financial measures. A non-GAAP financial measure is a numerical measure of the historical or future financial performance, financial position or cash flows that excludes amounts or is subject to adjustments that have the effect of excluding amounts that are included in the most directly comparable measure calculated and presented in accordance with GAAP. Reconciliations of non-GAAP measures to the most directly comparable GAAP measures are provided in the Non-GAAP Measures section of this presentation. References to the “Company,” “we,” or “us” refer to PCB Bancorp and references to the “Bank” refer to the Company’s subsidiary, PCB Bank.

Market Information 1/23/24 Market Cap $251.6 million Stock Price Per Share $17.64 52-Week Range $13.11 - $19.09 Dividend Yield 4.08% Dividend Payout Ratio (1Q23 – 4Q23) 32.39% Outstanding Shares 14,260,440 Stock Information 4Q23 or 12/31/23 Diluted Earnings Per Share (“Diluted EPS”) $0.41 Cash Dividend Per Share $0.18 Book Value (“BV”) Per Share $24.46 Tangible Common Equity (“TCE”) Per Share (1) $19.62 Number of Repurchased Shares (2) 60,074 (1) Not presented in accordance with GAAP. See “Non-GAAP Measures” for reconciliation of this measure to its most comparable GAAP measure (2) Number of shares repurchased under the stock repurchase plan announced on 8/2/23 during 4Q23 PCB Footprint Corporate Profile

Historical Performance (1) At period end (2) Not presented in accordance with GAAP. See “Non-GAAP Measures” for reconciliation of these measures to their most comparable GAAP measures

4Q23 Highlights Operating Results • Net income of $5.9 million, or $0.41 per diluted share • Provision for credit losses of $1.7 million • Return on Average Assets (“ROAA”) of 0.89%, Return on Average TCE (“ROATCE”) (1) of 8.54%, net interest margin of 3.40%, and efficiency ratio of 59.2% Loans • Loans held-for-investment (“HFI loans”) increased $155.8 million, or 7.2%, to $2.32 billion • Loans held-for-sale (“HFS loans”) decreased $1.5 million, or 23.0%, to $5.2 million • Average loan yield was 6.58% compared to 6.43% for 3Q23 • Total loans to deposits ratio was 99.0% • Quarterly loan production was $289.9 million compared to $157.8 million for 3Q23 Asset Quality • ACL on loans was $27.5 million, or 1.19% to HFI loans • Past due loans were $1.4 million, or 0.06% of HFI loans and NPLs were $3.9 million, or 0.17% of HFI loans Deposits • Total deposits increased $159.5 million, or 7.3%, to $2.35 billion • Core deposits(1) were $1.47 billion, or 62.6% of total deposits • Non-interest bearing deposits were $594.7 million, or 25.3% of total deposits • Uninsured deposits were $947.3 million, or 40.3% of total deposits • Cost of average interest-bearing deposits and total deposits were 4.50% and 3.33%, respectively Capital & Liquidity • Declared and paid quarterly cash dividend of $0.18 per share • TBV per share increased to $19.62 • Total cash and available borrowing capacity covers 151.9% of uninsured deposits compared to 75.1% at 12/31/22 (1) Not presented in accordance with GAAP. See “Non-GAAP Measures” for reconciliation to most comparable GAAP measure

Selected Financial As of or For the Three Months Ended Compared to 9/30/23 Compared to 12/31/22 ($ in Thousands, Except Per Share Data) 12/31/23 9/30/23 12/31/22 Amount Percentage Amount Percentage Income Statement Summary: Interest Income $ 40,951 $ 38,852 $ 31,576 $ 2,099 5.4% $ 9,375 29.7% Interest Expense 19,027 16,403 7,311 2,624 16.0% 11,716 160.3% Net Interest Income 21,924 22,449 24,265 (525) -2.3% (2,341) -9.6% Noninterest Income 2,503 2,502 2,389 1 0.0% 114 4.8% Noninterest Expense 14,469 14,207 13,115 262 1.8% 1,354 10.3% Provision for Credit Losses (1) 1,698 751 1,149 947 126.1% 549 47.8% Pretax Income 8,260 9,993 12,390 (1,733) -17.3% (4,130) -33.3% Income Tax Expense 2,352 2,970 3,688 (618) -20.8% (1,336) -36.2% Net Income 5,908 7,023 8,702 (1,115) -15.9% (2,794) -32.1% Diluted EPS $ 0.41 $ 0.49 $ 0.58 $ (0.08) -16.3% $ (0.17) -29.3% Selected Balance Sheet Items: HFI loans $ 2,323,452 $ 2,167,605 $ 2,046,063 $ 155,847 7.2% $ 277,389 13.6% HFS loans 5,155 6,693 22,811 (1,538) -23.0% (17,656) -77.4% Total Deposits 2,351,612 2,192,129 2,045,983 159,483 7.3% 305,629 14.9% Total Assets 2,789,506 2,567,974 2,420,036 221,532 8.6% 369,470 15.3% Shareholders’ Equity 348,872 341,852 335,442 7,020 2.1% 13,430 4.0% TCE (2) 279,731 272,711 266,301 7,020 2.6% 13,430 5.0% Key Metrics: BV Per Share $ 24.46 $ 23.87 $ 22.94 $ 0.59 2.5% $ 1.52 6.6% TCE Per Share (2) $ 19.62 $ 19.05 $ 18.21 $ 0.57 3.0% $ 1.41 7.7% ROAA (3) 0.89% 1.09% 1.44% -0.20% -0.55% Return on Average Equity (“ROAE”) (3) 6.82% 8.12% 10.31% -1.30% -3.49% ROATCE (2), (3) 8.54% 10.17% 12.99% -1.63% -4.46% Net Interest Margin (3) 3.40% 3.57% 4.15% -0.17% -0.75% Efficiency Ratio (4) 59.23% 56.94% 49.20% 2.29% 10.03% (1) Provision (reversal) for credit losses and ACL for reporting periods beginning with 1/1/23 are presented under ASC 326, while prior period comparisons continue to be presented under legacy ASC 450 and ASC 310 (2) Not presented in accordance with GAAP. See “Non-GAAP Measures” for reconciliation of these measures to their most comparable GAAP measures (3) Annualized (4) Calculated by dividing noninterest expense by the sum of net interest income and noninterest income

Loan Overview (1) Per regulatory definition in the Commercial Real Estate (“CRE”) Concentration Guidance 4Q23 Highlights • HFI loans Increased $155.8 million, or 7.2%, to $2.32 billion • CRE loans increased $67.7MM (4.5%), C&I loans increased $62.4MM (22.3%) & residential mortgage loans increased $26.1MM (7.2%)

Loan Production & Rate/Yield Analysis (1) Total commitment basis (2) Include both HFI and HFS loans (3) Annualized Repricing Schedule (12/31/23) HFI Loans HFS Loans Total Loans ($ in thousands) Carrying Value WA Rate Carrying Value WA Rate Carrying Value WA Rate Less Than 3 Months $ 833,703 8.77% $ 5,155 9.60% $ 838,858 8.78% 3 to 12 Months 162,229 5.21% 0 162,229 5.21% 1 to 3 Years 559,016 4.29% 0 559,016 4.29% 3 to 5 Years 665,624 5.50% 0 665,624 5.50% More than 5 Years 102,880 4.98% 0 102,880 4.98% Total $ 2,323,452 6.34% $ 5,155 9.60% $ 2,328,607 6.35% Loan Yield Analysis 4Q23 2023 ($ in thousands) Amount(2) Yield(3) Amount(2) Yield Average Carrying Value $ 2,242,457 $ 2,137,851 Interest on Loans $ 35,934 6.36% $ 131,929 6.17% Fee (Cost) 226 0.04% 714 0.03% Prepayment Penalty & Late Charges 223 0.04% 383 0.02% Discount (Premium) 806 0.14% 3,003 0.14% Total Interest & Fees $ 37,189 6.58% $ 136,029 6.36%

Carrying Value % to Total Count WA LTV(1) WA Rate Maturing ($ in thousands) <= 1 Year 2-3 Years 3-5 Years > 5 Years Retail (More than 50%) $ 354,549 22.5% 309 48.4% 6.14% $ 40,753 $ 104,512 $ 90,543 $ 118,741 Industrial 266,259 16.9% 163 48.6% 5.90% 57,285 53,977 81,456 73,541 Mixed Use 159,507 10.2% 145 44.8% 5.71% 26,058 41,009 62,310 30,130 Hotel & Motel 137,218 8.7% 111 48.4% 7.16% 10,705 8,074 49,968 68,471 Apartments 113,216 7.2% 55 52.6% 4.92% 6,076 17,389 56,639 33,112 Gas Station 99,042 6.3% 117 54.4% 6.52% 3,877 14,497 19,221 61,447 Office 86,054 5.5% 51 53.2% 5.81% 8,632 9,238 36,063 32,121 Medical 60,854 3.9% 31 42.0% 7.62% 11,831 8,387 29,024 11,612 Auto (Sales, Repair & etc.) 38,313 2.4% 32 53.7% 5.48% 3,773 6,906 22,104 5,530 Car Wash 35,795 2.3% 30 50.3% 5.95% 4,291 13,943 2,977 14,584 Golf Course 33,982 2.2% 7 50.2% 4.91% 0 19,306 9,380 5,296 Spa, Sauna, & Other Self-care 31,687 2.0% 8 50.4% 5.13% 13,305 429 8,858 9,095 Commercial Condominium 31,266 2.0% 39 49.5% 5.77% 2,722 7,153 6,643 14,748 Construction 24,843 1.6% 8 40.2% 9.53% 24,843 0 0 0 Wholesale 19,841 1.3% 14 42.5% 5.42% 2,355 4,093 3,900 9,493 Church 12,503 0.8% 17 36.3% 5.49% 1,015 2,781 3,453 5,254 Others 66,456 4.2% 73 51.8% 6.57% 13,331 7,267 30,466 15,392 Total $ 1,571,385 100.0% 1,210 48.9% 6.10% $ 230,852 $ 318,961 $ 513,005 $ 508,567 Loan Concentration (1) Collateral value at origination Commercial Real Estate Loans by Property Type (12/31/23) ($ in thousands) Carrying Value WA LTV(1) WA FICO Residential Mortgage $ 389,420 59.6% 759 Residential Mortgage Loans (12/31/23)

Loan Concentration Carrying Value % to Total WA Rate WA Month to Maturity($ in thousands) Finance & Insurance $ 85,672 25.2% 7.96% 9 Real Estate Related 77,578 22.7% 8.35% 16 General Manufacturing & Wholesale Trade 63,399 18.5% 8.57% 15 Retail Trade 31,602 9.2% 9.32% 55 Food Services 31,444 9.2% 9.24% 67 Professional, Scientific & Technical Services 16,041 4.7% 8.72% 24 Entertainment & Recreation 14,370 4.2% 8.07% 26 Transportation & Warehousing 6,323 1.8% 8.92% 8 Other Services 5,253 1.5% 8.86% 54 Health Care & Social Assistance 4,383 1.3% 9.15% 24 All Other 5,937 1.7% 8.01% 45 Total $ 342,002 100.0% 8.49% 24 Commercial & Industrial Loans by Industry Type (12/31/23)

Credit Quality & Peer(1) Comparison (1) Korean-American banks operating in Southern California (2) Source: UBPR (3) PCB Bank’s Peer Group per UBPR (4) Source: press releases concerning financial performance

Deposits (1) Not presented in accordance with GAAP. See “Non-GAAP Measures” for reconciliation of this measure to its most comparable GAAP measure. Time Deposit Maturity Schedule (12/31/23) Retail Wholesale Total ($ in thousands) Amount WA Rate Amount WA Rate Amount WA Rate Less Than 3 Months $ 329,926 4.55% $ 193,970 5.33% $ 523,896 4.84% 3 to 6 Months 198,852 4.82% 106,821 5.33% 305,673 5.00% 6 to 9 Months 91,854 4.65% 37,950 5.35% 129,804 4.86% 9 to 12 Months 345,898 5.12% 25,000 5.50% 370,898 5.15% More than 12 Months 5,465 3.75% 0 5,465 3.75% Total $ 971,995 4.81% $ 363,741 5.34% $ 1,335,736 4.96% 4Q23 Highlights • Total deposits increased $159.5MM (7.3%) • Retail deposits increased $57.0MM (3.0%) and wholesale deposits increased $102.5MM (39.2%) • Uninsured deposits were $947.3MM (40.3% of total deposits) compared to $983.9MM (44.9% of total deposits) at 9/30/23

Profitability (1) PTPP (Pre-Tax Pre-Provision) income, and adjusted EPS, ROAA and ROAE for PTPP are not presented in accordance with GAAP. See “Non-GAAP measure” for reconciliations of these measures to their most comparable GAAP measures. 4Q23 Highlights • Noninterest expense increased $262K and net interest income decreased $525K.

Noninterest Income & Expense (1) Annualized (2) Calculated by dividing noninterest expense by the sum of net interest income and noninterest income. Peer average data from UBPR (3) Full-time equivalent

Net Interest Margin (1) Annualized 4Q23 Highlights • Net interest income decreased $525K to $21.9MM from $22.4MM for 3Q23. • Net interest margin decreased to 3.40% from 3.57% for 3Q23 mainly due to an increase in cost of average interest-bearing liabilities, partially offset by an increase in yield on average interest- earning assets.

Capital (1) Not presented in accordance with GAAP. See “Non-GAAP Measures” for reconciliation of this measure to its most comparable GAAP measure.

Non-GAAP Measures To supplement the financial information presented in accordance with GAAP, we use certain non-GAAP financial measures. Management believes the non-GAAP measures enhance investors’ understanding of the Company’s business and performance. These measures are also useful in understanding performance trends and facilitate comparisons with the performance of other financial institutions. Risks associated with non-GAAP measures are the risk that persons might disagree as to the appropriateness of items comprising these measures and that different companies might calculate these measures differently. In the information below, we provide reconciliations of the non-GAAP financial measures used in this presentation to the most direct comparable GAAP measures. Core Deposits Core Deposits are a non-GAAP measure that we use to measure the portion of our total deposits that are thought to be more stable, lower cost and reprice less frequently on average in a rising rate environment. We calculate core deposits as total deposits less time deposits greater than $250,000 and brokered deposits. Management tracks its core deposits because management believes it is a useful measure to help assess the Company’s deposit base and, among other things, potential volatility therein. ROATCE, TCE Per Share and TCE to Total Assets ROATCE, TCE per share and TCE to total assets measures that we use to measure the Company’s performance. We calculated TCE as total shareholders’ equity excluding preferred stock. Management believes the non-GAAP measures provide useful supplemental information, and a clearer understanding of the Company’s performance. PTPP Income, and Adjusted ROAA, ROAE and Diluted EPS for PTPP PTPP income, and adjusted ROAA, ROAE and Diluted EPS are non-GAAP measures that we use to measure the Company’s performance and believe these presentations provide useful supplemental information, and a clearer understanding of the Company’s performance. We calculated PTPP income as net income excluding income tax provision and provision for loan losses.

Non-GAAP Measures The following table reconciles core deposits to its most comparable GAAP measure: ($ in thousands) Mar-22 Jun-22 Sep-22 Dec-22 Mar-23 Jun-23 Sep-23 Dec-23 Total Deposits (d) $ 1,910,379 $ 1,997,607 $ 1,978,098 $ 2,045,983 $ 2,141,689 $ 2,188,231 $ 2,192,1291 $ 2,351,612 Less: Time Deposits Greater Than $250K (273,844) (246,024) (299,271) (413,876) (514,464) (511,590) (514,406) (575,702) Less: Brokered Deposits (35,001) (35,001) (79,131) (87,031) (157,020) (160,149) (201,258) (303,742) Core Deposits (e) $ 1,601,534 $ 1,716,582 $ 1,599,696 $ 1,545,076 $ 1,470,205 $ 1,516,492 $ 1,476,465 $ 1,472,168 Core Deposits to Total Deposits (e)/(d) 83.8% 85.9% 80.9% 75.5% 68.6% 69.3% 67.4% 62.6% The following table reconciles ROATCE to its most comparable GAAP measure: ($ in thousands) 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 4Q23 Average Total Shareholders' Equity (a) $ 259,367 $ 292,135 $ 338,248 $ 334,832 $ 335,169 $ 339,869 $ 343,144 $ 343,735 Less: Average Preferred Stock 0 28,872 69,141 69,141 69,141 69,141 69,141 69,141 Average TCE (Non-GAAP) (b) $ 259,367 $ 263,263 $ 269,107 $ 265,691 $ 266,028 $ 270,728 $ 274,003 $ 274,594 Net Income (c) $ 10,240 $ 9,092 $ 6,953 $ 8,702 $ 10,297 $ 7,477 $ 7,023 $ 5,908 ROAE (1) (c)/(a) 16.01% 12.48% 8.16% 10.31% 12.46% 8.82% 8.12% 6.82% ROATCE (Non-GAAP)(1) (c)/(b) 16.01% 13.85% 10.25% 12.99% 15.70% 11.08% 10.17% 8.54% The following table reconciles TCE per share and TCE to total assets to their most comparable GAAP measures: ($ in thousands, except per share data) Mar-22 Jun-22 Sep-22 Dec-22 Mar-23 Jun-23 Sep-23 Dec-23 Total Shareholders' Equity (a) $ 261,058 $ 334,375 $ 332,719 $ 335,442 $ 336,830 $ 340,411 $ 341,852 $ 348,872 Less: Preferred Stock 0 69,141 69,141 69,141 69,141 69,141 69,141 69,141 TCE (Non-GAAP) (b) $ 261,058 $ 265,234 $ 263,578 $ 266,301 $ 267,689 $ 271,270 $ 272,711 $ 279,731 Outstanding Shares (c) 14,944,663 14,956,760 14,853,140 14,625,474 14,297,870 14,318,890 14,319,014 14,260,440 Book Value Per Share (a)/(c) $ 17.47 $ 22.36 $ 22.40 $ 22.94 $ 23.56 $ 23.77 $ 23.87 $ 24.46 TCE Per Share (Non-GAAP) (b)/(c) $ 17.47 $ 17.73 $ 17.75 $ 18.21 $ 18.72 $ 18.94 $ 19.05 $ 19.62 Total Assets (d) $ 2,199,742 $ 2,344,560 $ 2,327,051 $ 2,420,036 $ 2,500,524 $ 2,556,345 $ 2,567,974 $ 2,789,506 Total Shareholders’ Equity to Total Assets (a)/(d) 11.87% 14.26% 14.30% 13.86% 13.47% 13.32% 13.31% 12.51% TCE to Total Assets (Non-GAAP) (b)/(d) 11.87% 11.31% 11.33% 11.00% 10.71% 10.61% 10.62% 10.03% (1) Annualized

Non-GAAP Measures (1) Provision (reversal) for credit losses does not include provision (reversal) for off-balance sheet credit exposures for periods prior to January 1, 2023. (2) Annualized. The following table reconciles PTPP income, and adjusted ROAA, ROAE and diluted EPS for PTPP to their most comparable GAAP measures: ($ in thousands) 1Q22 2Q22 3Q22 4Q22 1Q23 2Q23 3Q23 4Q23 Net Income (a) $ 10,240 $ 9,092 $ 6,953 $ 8,702 $ 10,297 $ 7,477 $ 7,023 $ 5,908 Add: Provision (Reversal) for Credit Losses(1) (1,191) (109) 3,753 1,149 (2,778) 197 751 1,698 Add: Income Tax Provision 4,159 3,771 2,798 3,688 4,162 3,073 2,970 2,352 PTPP Income (Non-GAAP) (b) $ 13,208 $ 12,754 $ 13,504 $ 13,539 $ 11,681 $ 10,747 $ 10,744 $ 9,958 Average Total Assets (c) $ 2,161,132 $ 2,208,059 $ 2,319,439 $ 2,395,712 $ 2,470,876 $ 2,520,752 $ 2,563,233 $ 2,642,175 ROAA (2) (a)/(c) 1.92% 1.65% 1.19% 1.44% 1.69% 1.19% 1.09% 0.89% Adjusted ROAA (Non-GAAP)(2) (b)/(c) 2.48% 2.32% 2.31% 2.24% 1.92% 1.71% 1.66% 1.50% Average Total Shareholders' Equity (d) $ 259,367 $ 292,135 $ 338,248 $ 334,832 $ 335,169 $ 339,869 $ 343,144 $ 343,735 ROAE (2) (a)/(d) 16.01% 12.48% 8.16% 10.31% 12.46% 8.82% 8.12% 6.82% Adjusted ROAE (Non-GAAP)(2) (b)/(d) 20.65% 17.51% 15.84% 16.04% 14.13% 12.68% 12.42% 11.49% Net Income $ 10,240 $ 9,092 $ 6,953 $ 8,702 $ 10,297 $ 7,477 $ 7,023 $ 5,908 Less: Income Allocated to Participating Securities (48) (42) (30) (37) (33) (24) (21) (17) Net Income Allocated to Common Stock (e) 10,192 9,050 6,923 8,665 10,264 7,453 7,002 5,891 Add: Provision for Loan Losses (1,191) (109) 3,753 1,149 (2,778) 197 751 1,698 Add: Income Tax Provision 4,159 3,771 2,798 3,688 4,162 3,073 2,970 2,352 PTPP Income Allocated to Common Stock (f) $ 13,160 $ 12,712 $ 13,474 $ 13,502 $ 11,648 $ 10,723 $ 10,723 $ 9,941 WA common shares outstanding, diluted (g) 15,141,693 15,122,452 15,088,089 14,904,106 14,574,929 14,356,776 14,396,216 14,316,581 Diluted EPS (e)/(g) $ 0.67 $ 0.60 $ 0.46 $ 0.58 $ 0.70 $ 0.52 $ 0.49 $ 0.41 Adjusted Diluted EPS (Non-GAAP) (f)/(g) $ 0.87 $ 0.84 $ 0.89 $ 0.91 $ 0.80 $ 0.75 $ 0.74 $ 0.69 ($ in thousands) 2019 2020 2021 2022 2023 Net Income $ 24,108 $ 16,175 $ 40,103 $ 34,987 $ 30,705 Add: Provision (Reversal) for Credit Losses(1) 4,237 13,219 (4,596) 3,602 (132) Add: Income Tax Provision 10,243 6,836 16,856 14,416 12,557 PTPP Income (Non-GAAP) $ 38,588 $ 36,230 $ 52,363 $ 53,005 $ 43,130