Ulsan Hy. Yth.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2017-01-01 | Se-jin Park | Ulsan Hy. Yth. | Ulsan H. U15 | — |
| 2017-01-01 | Jae-hyeon Kim | Ulsan Hy. Yth. | Ulsan H. U15 | — |
| 2016-01-01 | Min-ho Kim | Ulsan Hy. Yth. | Ulsan H. U15 | — |
| 2015-01-01 | Jae-won Lee | Ulsan Hy. Yth. | Ulsan H. U15 | — |
| 2015-01-01 | Jae-hyeon Kim | Ulsan Hwajin ES | Ulsan Hy. Yth. | — |
| 2015-01-01 | Hyun-seok Hong | Ulsan Hy. Yth. | Ulsan H. U18 | — |
| 2014-01-01 | Min-ho Kim | Pohang Utd. U12 | Ulsan Hy. Yth. | — |
| 2012-01-01 | Hyun-seok Hong | Sinjeong ES | Ulsan Hy. Yth. | — |