Metaplanet moved 1,000 BTC worth $79.77 million to Coinbase Prime on Aug. 25, according to on-chain analytics firm Lookonchain.
Lookonchain flagged the deposit on X, describing it as a transfer into Coinbase Prime, which provides institutional trading, financing and custody services. The destination attribution is an on-chain analyst's assessment, not confirmation that Coinbase executed a sale.
Metaplanet has purchased 43,000 BTC at an average price of $96,191, for cumulative purchases of about $3.48 billion. The company's disclosed average acquisition price was approximately 15.3 million yen per coin, which Lookonchain converted to an estimated $96,191. At that average, the position's estimated acquisition cost would be approximately $4.14 billion.
The transfer comes one week after Metaplanet agreed to contribute 2,100 BTC and $2.5 million to Nasdaq-listed Super League Enterprise, a deal that would create a U.S. Bitcoin treasury platform named Superplanet. The proposed transaction, valued at about $134.6 million, still requires shareholder approval and is targeting a fourth-quarter 2026 closing.
Metaplanet has faced similar speculation before. On Aug. 12, CEO Simon Gerovich said the company moved 5,014 BTC between custodial addresses without selling any coins. Analysts had initially observed 3,881 BTC leaving Metaplanet-linked wallets during that earlier movement, but the company's clarification showed why a blockchain transfer should not automatically be treated as a disposal.
Bitcoin held through a Coinbase Prime account could remain under the company's beneficial ownership. An official treasury update or evidence of subsequent asset sales would be needed to confirm a reduction in holdings.
The pending Superplanet transaction would see Metaplanet receive 44.86 million common shares, preferred shares and warrants, giving it approximately 95.7 percent of the resulting company. The planned Nasdaq ticker is SUPA. The 2,100 BTC contribution would remain within Metaplanet's consolidated group after closing.
Separately, Super League reported selling 475,598 shares for approximately $2.23 million in gross proceeds through its at-the-market program. The company subsequently authorized another $2.27 million of ATM capacity, with agents receiving a 1 percent commission on gross proceeds from each sale.
The larger Superplanet transaction still requires Super League shareholder approval, Nasdaq requirements and applicable procedures in the U.S. and Japan. Until Metaplanet issues another treasury disclosure, the verified development is a 1,000 BTC movement to wallets attributed to Coinbase Prime.
Metaplanet is one of the largest corporate Bitcoin holders globally, and its treasury operations carry outsized weight in BTC markets. If the Superplanet deal closes, the combined entity would control roughly 45,100 BTC, expanding the company's acquisition capacity and potentially supporting sustained BTC demand. Conversely, any confirmed sale from the Coinbase Prime balance would introduce selling pressure on a market already watching large-holder flows.
This article is for informational purposes only and does not constitute investment advice.