Jefferies Financial Group Investor Presentation Deck

Investing in Technology & Growth Our largest expense categories align with our focus on continuing to grow and invest in our business Technology, Communications & Professional Services ■ Development of Madison, our in-house CRM tool, which will facilitate greater cross-business interactions with our clients ■ Front-office trading platform to support continued product offerings ■ Infrastructure modernization & mobility improvements ■ Continued focus on enhanced cyber security ■ Support of our growing global footprint See pages 65-70 at the back of this presentation for endnotes. 45% Transaction & Client Related Costs Other Expenses $1.3B Non-Comp Expenses FYTD Q3'23 13% 34% 8% Transaction & Client Related Costs (1) ■ Expanded product offerings ■ Regional expansion ■ Market share gains across Investment Banking products ■ Strong Capital Markets trading volumes ■ Occupancy & Equipment ■Technology, Commmunications, & Professional Services Jefferies 33

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