Quick Takeaways
- Siemiatkowski Sebastian has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $348,576,678.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Siemiatkowski Sebastian
- Location
- London
- Summary
- The estimated net worth of Siemiatkowski Sebastian is at least $348,576,678 dollars as of 15 Apr 2026. Siemiatkowski Sebastian is the Chief Executive Officer, Director of Klarna Group plc and owns shares of Klarna Group plc (KLAR) stock worth about $348.58M.
- Signature
- Boudien Moerman, as attorney-in-fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Siemiatkowski Sebastian and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: Klarna Group plc ($348,576,678).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Siemiatkowski Sebastian
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| KLAR | Klarna Group plc | Chief Executive Officer, Director | $348,576,678 | 30 Mar 2026 |
Insider Transactions Reported by Siemiatkowski Sebastian:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.