Sebastian Siemiatkowski
Chief Executive Officer, Director · Klarna Group plc
IndividualBuying only
- 2026
- Aug 28, 2026
- 3
Filings (90d)
Other insiders active in the same sector
No other insider has filed at Sebastian Siemiatkowski's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Joseph Michael Lubin - $47.63M in SBET purchases and sales in the last 12 months
- Richard D. Fairbank - $46.19M in COF purchases and sales in the last 12 months
- David J. Volk - $44.96M in BCAL purchases and sales in the last 12 months
- Games Reels Jakota - $44.40M in CRSF purchases and sales in the last 12 months
- Rajeev V. Date - $41.93M in CRCL purchases and sales in the last 12 months
- Christopher Swift - $41.76M in HIG purchases and sales in the last 12 months
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Frequently asked questions
Who is Sebastian Siemiatkowski?
Sebastian Siemiatkowski is a corporate insider, tracked as Chief Executive Officer, Director of Klarna Group plc (KLAR). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Sebastian Siemiatkowski submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Sebastian Siemiatkowski been buying or selling stock?
Recorded transactions: 1 open-market purchase ($9.95M) and 0 open-market sales across all tracked filings.
