Cheonan City (K League 2): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-16 | Ja-ung Heo | Cheonan City | Jeju United | Free |
| 2026-07-09 | Seung-hyeon Cha | Yongin City | Cheonan City | Free |
| 2026-03-26 | Chang-min Ahn | Gimpo | Cheonan City | Free |
| 2026-02-07 | Kyu-min Lee | Football Club Pohang Steelers | Cheonan City | Loan |
| 2026-02-03 | Bruno Lamas | Daegu FC | Cheonan City | Free |
| 2026-01-16 | Tae-won Ko | Jeonnam Dragons | Cheonan City | Free |
| 2026-01-16 | Kyu-baek Choi | Suwon FC | Cheonan City | Free |
| 2026-01-16 | Dong-hyeop Lee | Football Club Pohang Steelers | Cheonan City | Loan |
| 2026-01-16 | Ji-seung Lee | Cheongju | Cheonan City | Free |
| 2026-01-16 | Jun-hyeok Choi | Hwaseong | Cheonan City | Free |
| 2026-01-16 | Chang-woo Park | Busan I'Park | Cheonan City | Free |
| 2026-01-16 | Joon-ho Lee | Jeonbuk Hyundai Motors | Cheonan City | Free |
| 2026-01-16 | Sang-yong Lee | Football Club Anyang | Cheonan City | Free |
| 2026-01-16 | Sung-joon Kim | Cheonan City | Gimpo | Free |
| 2026-01-16 | Kang Young-Hun | Cheonan City | Incheon United Football Club | Free |
| 2026-01-16 | Geon-ho Moon | Cheonan City | Citizen | Free |
| 2026-01-16 | Sang-myung Lee | Cheonan City | Jeonbuk Hyundai Motors | Free |
| 2026-01-16 | Jin-woong Choi | Cheonan City | Jeonbuk Hyundai Motors | Free |
| 2026-01-16 | Jong-sung Lee | Cheonan City | Hwaseong | Free |
| 2026-01-12 | Ma Sang-Hoon | Cheonan City | Osaka | Free |