Investor · SE
Sebastian Siemiatkowski
Co-founder and CEO of Klarna; Swedish angel investor in technology and fintech.
- Rounds led
- 0
- Rounds joined
- 1
- Companies backed
- 1
- Last activity
- 20 Oct 2025
- Type
- Angel
- Fund size
- —
- Sectors
- fintech, technology
- Stage focus
- seed, early
Portfolio
Capital in rounds led · —
Participant · Funding · 20 Oct · EUR 30.0M · LT
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