Albirex Niigata (J1 League): every transfer in and out, fees paid and earned, squad market value, €4.5m spent and €6.8m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-21 | Yushin Otake | Albirex Niigata | Balestier Khalsa | Loan |
| 2026-07-01 | Kanji Kuwayama | Zelvia | Albirex Niigata | Loan |
| 2026-07-01 | Ryosuke Maeda | Ehime | Albirex Niigata | Free |
| 2026-07-01 | Hiroki Akiyama | Albirex Niigata | SV Darmstadt 98 | €250k |
| 2026-07-01 | Ryuga Tashiro | Albirex Niigata | Tochigi | Loan |
| 2026-03-08 | Abdelrahman Boudah | Albirex Niigata | Västerås IK | Free |
| 2026-03-05 | Abdelrahman Boudah | Albirex Niigata | Västerås SK | Loan |
| 2026-03-05 | Abdelrahman Boudah | Albirex Niigata | Västerås IK | Loan |
| 2026-01-29 | Kaito Taniguchi | Albirex Niigata | Central Coast | — |
| 2026-01-21 | Kazuki Fujita | Albirex Niigata | Avispa Fukuoka | — |
| 2026-01-19 | Miguel Silveira | Albirex Niigata | Universitario | Free |
| 2026-01-12 | Noam Baumann | SC Sagamihara | Albirex Niigata | — |
| 2026-01-12 | Yusuke Onishi | Iwaki | Albirex Niigata | Free |
| 2026-01-12 | Tetsuya Kato | Imabari | Albirex Niigata | Free |
| 2026-01-12 | Yudai Fujiwara | Urawa Red Diamonds | Albirex Niigata | Free |
| 2026-01-12 | Chihiro Konagaya | Roasso Kumamoto | Albirex Niigata | Free |
| 2026-01-12 | Kento Hashimoto | Albirex Niigata | FC Tokyo | — |
| 2026-01-12 | Motoki Hasegawa | Albirex Niigata | V-V. Nagasaki | — |
| 2026-01-12 | Yuto Horigome | Albirex Niigata | Consadole Sapporo | Free |
| 2026-01-12 | Shosei Okamoto | Albirex Niigata | Kataller Toyama | Free |