Crypto asset manager 21Shares has submitted a Form S-1 registration statement to the U.S. Securities and Exchange Commission for the 21Shares Sei ETF, a fund designed to give investors regulated exposure to the Sei blockchain’s native SEI token. The proposed ETF would hold SEI in custody with Coinbase Custody and aims to mirror the token’s market price while passing through a portion of staking rewards where legally permissible. Shares would be created and redeemed in-kind by authorized participants, according to the filing. The application extends a wave of digital-asset exchange-traded product proposals awaiting SEC review; independent trackers put the current total at roughly 92 crypto ETF filings.