4,180 BTC ($304.7M) Transferred From Addresses Labeled 'Coinbase Institutional' to New Wallet

Whale Alert, a service that tracks large blockchain transactions, flagged a transfer of 4,180 bitcoin worth about $304.7 million from addresses it labels as “Coinbase Institutional” to a newly identified wallet on Wednesday, though Coinbase had not publicly commented on the move at the time of reporting.

The transaction was confirmed on the Bitcoin network at 15:28:17 UTC on May 28, 2026, according to the alert and transaction data. The transaction hash is 36a703ecc48058c7386510c8c8f0f13a0785b9611ea7aa6a4984a474af4b9ee9. Whale Alert identified the receiving address as 1b3L6gWiwqCe8D2dqL5oHyzEsyo5qLqVn and described it as an “unknown new wallet.” The service published the alert on its Telegram channel at 15:33 UTC. No public Coinbase statement explaining or confirming this specific transfer was found in the available research.

Whale Alert calculated the value at $304,736,491, based on an implied bitcoin price of $72,894.49 at the time of the alert. Its post said: “4,180 #BTC (304,736,491 USD) transferred from Coinbase Institutional to unknown new wallet.”

Coinbase Institutional is Coinbase’s suite of services for professional and institutional clients, including custody, prime brokerage and over-the-counter trading. Because of that, large transfers associated with it can reflect several routine activities, such as a client moving assets into custody, settlement tied to an OTC transaction, or internal wallet management, rather than a straightforward market buy or sell.

That distinction matters because blockchain tracking services rely on address clustering and other heuristics to label wallets and entities. Those labels can be useful signals for observers, but they are not the same as a company publicly confirming ownership or the purpose of a transaction.

Large transfers from exchange-linked addresses to private wallets are closely watched because they can point to client withdrawals, OTC settlement or operational movements. But blockchain data alone does not establish which of those explanations applies in this case.

For now, the publicly visible facts are limited to what appeared on-chain and in Whale Alert’s notice: “4,180 #BTC (304,736,491 USD) transferred from Coinbase Institutional to unknown new wallet.” Without a public statement from Coinbase or the wallet owner, the reason for the transfer remains unclear.