Age today29
Recorded moves10
Peak recorded value€5.00m
Current market value€2.20m
01 / PLAYER DETAILS
At a glance
- Full name
- Kai Harley Wagner
- Born
- 15 Feb 1997
- Nationality
- Germany
- Position
- Left-Back
- Preferred foot
- left
- Height
- 182
- Joined current club
- 02 Jan 2026
- Contract expires
- 30 Jun 2028
02 / THE JOURNEY
Previous clubs
- Birmingham CityLast recorded move · 17 Jul 2026
- Würzburger KickersLast recorded move · 06 Feb 2019
- FC Schalke 04 IILast recorded move · 01 Jul 2017
- SSV Ulm 1846Last recorded move · 01 Jul 2016
- FC Augsburg U19Last recorded move · 01 Jul 2015
- SSV Ulm 1846 U19Last recorded move · 01 Jan 2015
- SSV Ulm 1846 U17Last recorded move · 01 Jul 2013
- SSV Ulm 1846 YouthLast recorded move · 01 Jul 2012
Clubs from completed, dated transfers, most recent first. Repeat spells are listed in the full transfer history.
03 / VALUE OVER TIME
Market value history
| Valuation date | Age then | Club at the time | Market value |
|---|---|---|---|
| 18 Sep 2026 | 29 | Philadelphia Union | €3.00m |
| 28 May 2026 | 29 | Birmingham City | €2.20m |
| 03 Mar 2026 | 29 | Birmingham City | €3.00m |
| 11 Dec 2025 | 28 | Philadelphia Union | €5.00m |
| 05 Jun 2025 | 28 | Philadelphia Union | €5.00m |
| 12 Dec 2024 | 27 | Philadelphia Union | €5.00m |
| 13 Jun 2024 | 27 | Philadelphia Union | €5.00m |
| 18 Dec 2023 | 26 | Philadelphia Union | €5.00m |
| 22 Aug 2023 | 26 | Philadelphia Union | €5.00m |
| 08 Nov 2022 | 25 | Philadelphia Union | €5.00m |
| 18 Aug 2022 | 25 | Philadelphia Union | €4.00m |
| 09 Nov 2021 | 24 | Philadelphia Union | €3.00m |
| 09 Jul 2021 | 24 | Philadelphia Union | €2.50m |
| 18 Dec 2020 | 23 | Philadelphia Union | €2.50m |
| 26 Aug 2020 | 23 | Philadelphia Union | €1.00m |
| 08 Apr 2020 | 23 | Philadelphia Union | €800k |
| 30 Nov 2019 | 22 | Philadelphia Union | €1.00m |
| 27 May 2019 | 22 | Philadelphia Union | €500k |
| 15 Jan 2019 | 21 | Würzburger Kickers | €275k |
| 08 Jun 2018 | 21 | Würzburger Kickers | €250k |
| 19 Jan 2018 | 20 | Würzburger Kickers | €200k |
| 01 Jul 2017 | 20 | Würzburger Kickers | €150k |
| 15 Mar 2017 | 20 | FC Schalke 04 II | €100k |
| 20 Nov 2016 | 19 | FC Schalke 04 II | €75k |
| 15 Jul 2016 | 19 | FC Schalke 04 II | €50k |
Each row is a dated valuation. The bar shows its share of the player’s peak recorded value. — means not recorded.
04 / EVERY MOVE
Full transfer history
| Date | From | To | Move | Fee |
|---|---|---|---|---|
| 17 Jul 2026 | Birmingham City | Philadelphia Union | Transfer | €3.50m |
| 02 Jan 2026 | Philadelphia Union | Birmingham City | Transfer | €2.50m |
| 06 Feb 2019 | Würzburger Kickers | Philadelphia Union | Transfer | €60k |
| 01 Jul 2017 | FC Schalke 04 II | Würzburger Kickers | Transfer | Free |
| 01 Jul 2016 | SSV Ulm 1846 | FC Schalke 04 II | Transfer | Free |
| 01 Jul 2015 | FC Augsburg U19 | SSV Ulm 1846 | Transfer | Free |
| 01 Jan 2015 | SSV Ulm 1846 U19 | FC Augsburg U19 | Transfer | Free |
| 01 Jul 2013 | SSV Ulm 1846 U17 | SSV Ulm 1846 U19 | Internal move | — |
| 01 Jul 2012 | SSV Ulm 1846 Youth | SSV Ulm 1846 U17 | Internal move | — |
| 01 Jul 2009 | Not recorded | SSV Ulm 1846 Youth | Transfer | Free |
Includes loans, loan returns, internal moves and scheduled transfers. Free means a recorded €0 fee; — means no figure was recorded.