Sebastian Siemiatkowski (@klarnaseb) — Twitter Score 109 out of 1000
Great
109Ranked #6,398 of 493,952 crypto accounts tracked by TwitterScore.io
Marc Andreessen 🇺🇸
toly 🇺🇸
Sam Altman
6529
Jesse Powell
Frank Chaparro 🇸🇬
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About Sebastian Siemiatkowski's Twitter Score
Sebastian Siemiatkowski is a fintech entrepreneur who co-founded Klarna, the consumer payments company he continues to lead as CEO. Sebastian Siemiatkowski's Twitter Score is 109 out of 1000 (an Excellent rating) as of October 2026, ranking #6,398 (top 5%) among 493,952 tracked accounts.
Sebastian Siemiatkowski co-founded Klarna and has served as its CEO through the company's growth into a major consumer finance platform. After years of publicly dismissing crypto, including characterizing it as a "decentralized Ponzi scheme" per Bloomberg, Siemiatkowski reversed course in February 2025, announcing on X that he and Klarna would embrace the sector. He said the company was exploring opportunities across Bitcoin, stablecoins, and related infrastructure.
Sebastian Siemiatkowski has since moved from statement to product. Klarna announced KlarnaUSD, a US-dollar-backed stablecoin built using Bridge's Open Issuance infrastructure on the Tempo blockchain, a payments-focused chain started by Stripe and crypto venture firm Paradigm. KlarnaUSD was live on Tempo's testnet at announcement, with a mainnet launch planned for 2026. Siemiatkowski described it as the starting point for Klarna's broader crypto ambitions, framing stablecoin infrastructure as a way to make payments faster and cheaper.
Sebastian Siemiatkowski extended that strategy in December 2025, when Klarna announced a partnership with Privy to build a crypto wallet allowing Klarna users to hold, trade, and transact with digital assets. Siemiatkowski positioned the wallet as a path toward mainstream crypto adoption. Sebastian Siemiatkowski's account has 49,384 followers as of October 2026 and has published 3,978 posts, and has been mentioned by 85 accounts a total of 188 times.
Who follows Sebastian Siemiatkowski on X?
The accounts that follow Sebastian Siemiatkowski include 434 founders, 125 angel investors, 96 influencers and 13 VCs, among them Marc Andreessen, Sam Altman, Toly, 6529, Jesse Powell and Frank Chaparro.
