| 2026-09-05 | S. Suleiman | RB Leipzig → Al-Qadisiyah FC | Transfer |
| 2026-09-04 | S. Suleiman | RB Leipzig → Al-Qadisiyah FC | Transfer |
| 2026-09-02 | A. Vermeeren | RB Leipzig → Antwerp | Loan |
| 2026-09-01 | E. Bitshiabu | RB Leipzig → Galatasaray | Loan |
| 2026-08-31 | C. Harder | RB Leipzig → Strasbourg | Loan |
| 2026-08-31 | A. Thomas | RB Leipzig → NEC Nijmegen | Transfer |
| 2026-08-31 | Marc Guiu | Chelsea → RB Leipzig | Transfer |
| 2026-08-31 | N. El Aynaoui | AS Roma → RB Leipzig | Loan |
| 2026-08-30 | A. Thomas | RB Leipzig → NEC Nijmegen | Transfer |
| 2026-08-30 | Marc Guiu | Chelsea → RB Leipzig | Transfer |
| 2026-08-24 | C. Nkunku | AC Milan → RB Leipzig | Loan |
| 2026-08-21 | E. Elmas | RB Leipzig → Atalanta | Loan |
| 2026-08-20 | L. Geertruida | RB Leipzig → PSV Eindhoven | Loan |
| 2026-08-19 | J. Norbye | RB Leipzig → Haugesund | Transfer |
| 2026-08-18 | J. Norbye | RB Leipzig → Haugesund | Transfer |
| 2026-08-18 | J. Norbye | Fredrikstad → RB Leipzig | Return from loan |
| 2026-08-17 | Robert Ramsak | RB Leipzig → Aluminij | Free agent |
| 2026-08-16 | Robert Ramsak | RB Leipzig → Aluminij | Free agent |
| 2026-08-05 | Y. Diomande | RB Leipzig → Real Madrid | Transfer |
| 2026-08-04 | Y. Diomande | RB Leipzig → Real Madrid | Transfer |
| 2026-08-03 | Ø. Nyland | Sevilla → RB Leipzig | Free agent |
| 2026-08-02 | P. Gulácsi | RB Leipzig → Villarreal | Transfer |
| 2026-08-02 | Ø. Nyland | Sevilla → RB Leipzig | Free agent |
| 2026-08-01 | P. Gulácsi | RB Leipzig → Villarreal | Transfer |
| 2026-07-22 | X. Schlager | RB Leipzig → Nottingham Forest | Free agent |
| 2026-07-21 | X. Schlager | RB Leipzig → Nottingham Forest | Free agent |
| 2026-07-16 | M. Estève | Burnley → RB Leipzig | Transfer |
| 2026-07-02 | T. Schlieck | RB Leipzig → Verl | Loan |
| 2026-07-01 | O. Yamamoto | RB Leipzig → Omiya Ardija | Loan |
| 2026-06-30 | F. Jäkel | RB Leipzig → Eintracht Braunschweig | Free agent |
| 2026-06-30 | L. Openda | RB Leipzig → Juventus | Transfer |
| 2026-06-30 | F. Sakar | RB Leipzig → FC Augsburg | Free agent |
| 2026-06-30 | O. Yamamoto | Kashiwa Reysol → RB Leipzig | Transfer |
| 2026-06-30 | R. Reitz | Borussia Mönchengladbach → RB Leipzig | Transfer |
| 2026-06-30 | J. Schuldes | RB Leipzig → Utrecht | Free agent |
| 2026-06-29 | T. Schlieck | SpVgg Greuther Fürth → RB Leipzig | Return from loan |
| 2026-06-29 | F. Jäkel | Eintracht Braunschweig → RB Leipzig | Return from loan |
| 2026-06-29 | L. Geertruida | Sunderland → RB Leipzig | Return from loan |
| 2026-06-29 | L. Openda | Juventus → RB Leipzig | Return from loan |
| 2026-06-29 | E. Elmas | Napoli → RB Leipzig | Return from loan |
| 2026-06-29 | X. Schlager | RB Leipzig → Schlager Xaver | Free agent |
| 2026-06-29 | A. Vermeeren | Marseille → RB Leipzig | Return from loan |
| 2026-06-29 | K. Nedeljković | RB Leipzig → Aston Villa | Return from loan |
| 2026-06-29 | Ø. Nyland | Sevilla → RB Leipzig | Free agent |
| 2026-06-29 | Robert Ramsak | SV Sandhausen → RB Leipzig | Return from loan |
| 2026-06-29 | B. Gruda | RB Leipzig → Brighton | Return from loan |
| 2026-06-29 | A. Koné | Reims → RB Leipzig | Return from loan |
| 2026-06-29 | M. Estève | Burnley → RB Leipzig | Transfer |
| 2026-06-29 | O. Yamamoto | Kashiwa Reysol → RB Leipzig | Transfer |
| 2026-06-29 | B. Kaltefleiter | New York Red Bulls → RB Leipzig | Return from loan |
| 2026-03-30 | J. Norbye | RB Leipzig → Fredrikstad | Loan |
| 2026-02-25 | J. Masanka Bungi | RB Leipzig → New York Red Bulls | Loan |
| 2026-02-25 | B. Kaltefleiter | RB Leipzig → New York Red Bulls | Loan |
| 2026-02-01 | Robert Ramsak | RB Leipzig → SV Sandhausen | Loan |
| 2026-02-01 | B. Gruda | Brighton → RB Leipzig | Loan |
| 2026-02-01 | A. Thomas | Jong PSV (U21) → RB Leipzig | Transfer |
| 2026-01-31 | Y. Eduardo | RB Leipzig → Dordrecht | Transfer |
| 2026-01-31 | Robert Ramsak | Eintracht Braunschweig → RB Leipzig | Return from loan |
| 2026-01-31 | A. Thomas | Jong PSV (U21) → RB Leipzig | Transfer |
| 2026-01-30 | K. Kampl | RB Leipzig → Kampl Kevin | End of career |
| 2026-01-29 | Y. Eduardo | Dordrecht → RB Leipzig | Return from loan |
| 2026-01-29 | A. Koné | RB Leipzig → Reims | Loan |
| 2026-01-28 | T. Werner | RB Leipzig → San Jose Earthquakes | Free agent |
| 2026-01-28 | A. Koné | Reims → RB Leipzig | Transfer |
| 2026-01-12 | S. Suleiman | AS Trencin → RB Leipzig | Transfer |