X0609 4 2026-08-17 0 0002046042 Jefferson Capital, Inc. / DE JCAP 0002071982 Zellmann Mark Joseph false C/O JEFFERSON CAPITAL, INC. 600 SOUTH HIGHWAY 169, SUITE 1575 MINNEAPOLIS MN 55426 0 1 0 0 President US Business Lines 0 Common Stock 2026-08-17 4 S 0 56000 23.7518 D 637747 D Common Stock 2026-08-17 4 G 0 6250 0 D 631497 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.54 to $24.17, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The transaction reported shows a charitable gift of 6,250 shares to Fidelity Charitable. /s/ Matthew J. Pfohl, Attorney-in-Fact for Mark Zellmann 2026-08-19