Investor Presentation Q2 2020 Ste teven E. E. Shelton President - PowerPoint PPT Presentation

Investor Presentation Q2 2020 Ste teven E. E. Shelton President & & CEO EO Th Thomas A. A. Sa Sa SEVP, CF , CFO & & CO COO Scot ott M Mye yers, SEVP, P, C CLO

Forwa ward-Look ooking S Statements ts During the course of the presentation and any transcript that may result, written or otherwise, California BanCorp (the “Company”) may make projections or other forward-looking statements regarding a variety of items. Such forward-looking statements are based upon current expectations and involve risks and uncertainties. Actual results may differ materially from those stated in any forward-looking statement based on a number of important factors and risks. Although the Company may indicate and believe that the assumptions underlying the forward- looking statements are reasonable, any of the assumptions could prove inaccurate or incorrect and therefore, there can be no assurance that the results contemplated in the forward-looking statements will be realized. The Company undertakes no obligation to release publicly the results of any revisions to the forward-looking statements included herein to reflect events or circumstances after today, or to reflect the occurrence of unanticipated events. The Company claims the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. 2 2

Overvie iew of of C Calif liforn rnia ia B Bancorp Franchise Map Company Overview Established in 2007 as a relationship focused commercial  business bank serving Northern California with assets of $1.9 billion and market cap of ~$121 million (1)  Majority of executive management team joined the bank at inception Robust commercial core deposits   21 Primary relationship managers with average banking experience of over 25 years and average loan books of $46 million Positioned to leverage recent investments to enhance our  Walnut Creek platform and extend our markets Financial Snapshot – 06/30/20 Balance Sheet ($mm) 2020Q2 Profitability (%) Assets 1,910 Core ROAA 0.35 Loans 1,299 Core ROATCE 4.95 Deposits 1,386 Net Interest Margin 2.59 Tangible Common Equity 126 Core Efficiency Ratio 55.70 Loans/ Deposits (%) 93.8 Cost of Deposits 0.46 Loan Composition (%) Deposit Composition (%) • CALB HQ and LPO • Acquired Branch (2) C&I Loans / Gross Loans 28.2 DDA/ Total Deposits 46.4 Core Deposits/ Total Deposits CRE Loans / Gross Loans 39.2 87.3 • CBoC HQ Branch • LPOs Capital Ratios (Consolidated) (%) Credit Metrics (%) TCE / TA 6.62 NPAs / Loans & OREO 0.10 Leverage Ratio 8.13 NPAs / Assets 0.07 Tier 1 Ratio 11.27 Reserves / Gross Loans 0.96 TRBC Ratio 12.87 NCOs / Avg. Loans 0.35 (1) Based on CALB’s stock price of $14.90 as of 06/30/2020 (2) Acquisition of Pan Pacific Bank which closed on 12/31/2015 3

Invest stment H Highlights  Branch light, commercial focused business bank with strong middle market relationships throughout Northern California  Experienced management team and seasoned C&I relationship team with strong ties to the local markets  Proven organic and acquisitive growth story  Quality core deposit franchise and commercial relationship strategy  C&I focus provides asset sensitivity and ability to rebalance loan portfolio  Disciplined underwriting standards with best in class asset quality metrics  Strong earnings outlook as efficiencies from investments are realized 4 4 3

Exper erien enced ed Managem ement T Team  Previously served as an Executive Vice President of the Bank primarily responsible for Steven E. managing relationship officers and production since the Bank’s founding in 2007 Years at CALB: 12 Age: Shelton,  58 Served for thirteen years in various executive management positions including President of Years in Industry: 35 President & CEO CivicBank of Commerce  More than 30 years’ experience in executive finance and risk management roles, most recently Thomas A. Sa, Joined 2019 serving as Chief Risk Officer for Western Alliance Bank. Age: SEVP, CFO & 57  Years in Industry: 31 Previously served in various executive and director roles at Bridge Bank and its holding company COO Bridge Capital Holdings (BBNK), including Chief Financial Officer and Chief Strategy Officer.  Previously served as Deputy Chief Credit Officer and part of senior management from 2007 Vivian Mui, Age: Years at CALB: 12 to 2018 Age: 84 SEVP & CCO 40  Years in Industry: 18 17 years of experience in various positions including lending and credit administration at Mechanics Bank  Joined 2019 Veteran banker with more than 15 years banking experience in the Sacramento area Scott Myers Age: SEVP & CLO 49  Years in Industry: 23 Previously served as Wells Fargo Senior Vice President and Sacramento Region Manager  Previously served as the Bank’s Executive Vice President & East Bay Market President Years at CALB: 12 Age: Michele Wirfel, 51  SEVP & CBO Has worked in financial management and commercial banking since 1991 in various Years in Industry: 28 executive management positions including regional manager for CivicBank of Commerce  Previously served as a Senior Vice President and Chief Information Officer for North Bay Tom M. Years at CALB: 12 Dorrance, Age: Bancorp 57 SEVP Technology Years in Industry: 27  Has worked in financial management and commercial banking since 1992 including I.T. & Operations Manager at CivicBank of Commerce  Served as Executive Vice President and CCO from 2007 through 2017 Years at CALB: 12 John Lindstedt,  Previously served in various executive management positions including Executive Vice SEVP & CCO Years in Industry: 51 President and Senior Lending Officer for Wells Fargo’s corporate bank and President & CCO Emeritus of CivicBank of Commerce 5 5

Our Hi History Successful Expansion Throughout Northern California Completed 2015 – Q2’20 Holding Company Completed $25.0 million expansion into Asset CAGR formed in June 2017 private offering of $4 million private placement the Sacramento 22.69% common stock in August offering at $12.86 per share to Walnut Creek LPO Region 2018 payoff SBLF in May 2016 opened in July 2017 Entered the Completed acquisition of Pan NASDAQ stock Pacific Bank ($131 million in market assets) in December 2015 $16 million common stock offering at $9.90 per share to fund growth in June 2014 $1,910 Bank founded in Practice Acquisition March 2007 with Division opened in $27.5 million in March 2011 capital $15.51 $15.16 San Jose ABL Division opened in $14.20 July 2011 $12.01 $1,152 $11.16 $10.48 $10.19 $1,006 $9.61 $866 $8.90 $8.58 $765 $8.21 $7.94 $653 $7.04 $6.70 $446 $365 $350 $299 $240 $194 $137 $53 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Q2-2020 Assets ($mm) TBVPS Tangible book value per share and capital offering price adjusted for historical stock splits 6 Data as of 12/31 for each respective year and 06/30 for Q2-2020

Our B Busi siness M ss Model Business Model Overview Historical Loan & Deposit Growth $1,386  Middle market commercial banking 2015 – Q2’20 CAGR $1,400  $1,299 Target businesses with $20 million - $200 million in annual Loans: 18.2% revenue Deposits: 18.6%  Target clients with minimum lending relationships of $2 million or $1,200 $1 million in deposits  Portfolio managed to ~40% C&I loans and ~40% non-interest bearing deposits $988 $1,000  Invest in other asset generating business lines $950  $874 Asset-based lending division with $50 million in loans as of $847 06/30/20 $800 $760  Practice Acquisition division with $257 million in loans as $733 of 06/30/20 $650  Construction lending division with $40 million in loans as of $628 06/30/20 $600 $542  $518 Sponsor Finance division launched in first quarter 2020  Strong core commercial deposit generation strategy  $400 Utilize technology with minimal branches  Provide commercial cash management services to middle market clients  Established Professional Banking division to target $200 specialty deposits primarily from law firms and non-profits $0 2015 2016 2017 2018 2019 Q2-2020 Dollars in millions 7 Loans Deposits Data as of 12/31 for each respective year and 06/30 for Q2-2020

We e Ser erve e Cl Clients Throughout Nor orthern Cal California Franchise Map Our Middle Market Relationships Walnut Creek Our “Typical Client”  ~$50 million in annual revenue  $5 million revolver with $2 million outstanding  $1 million equipment financing • CALB HQ and LPO • Acquired Branch (1)  $3 million commercial real estate loan • LPOs • CBoC HQ Branch  $1 million demand deposit utilizing cash management services  $3 million money market accounts to hold surplus deposits  Fee income driven by commercial portfolio account analysis (1) Acquisition of Pan Pacific Bank which closed on 12/31/15. 8