- Metaplanet has cancelled 131.3 million potential shares from its Series 10 pool of stock acquisition rights, removing more than $220m of warrant value.
- The cut targets rewards generated by share sales after September 2025, the point at which the company says its fundraising stopped adding much bitcoin per share.
- The bitcoin itself hasn’t moved. This is a board decision about pay, not an audited change to the balance sheet.
Metaplanet’s business is buying bitcoin with money raised from shareholders. On 11 September the Tokyo-listed company said the rewards attached to a large chunk of that buying were no longer justified by what it produced, and cancelled them, taking more than $220m of paper value with them.
If you hold shares in any company whose main asset is bitcoin, the number that decides whether you make money isn’t how much bitcoin it owns. It’s how much bitcoin sits behind each share. Those two figures move independently, and a company can raise money, buy more coins and leave you worse off at the same time.
Metaplanet has now said in public that this happened to its own shareholders from around September 2025 onwards. Several London-quoted and UK-facing companies have copied the same structure over the past year, and the arithmetic doesn’t change when the listing does.
What was actually cancelled

Series 10 stock acquisition rights are warrants: instruments that let the holder buy newly issued shares at a fixed price later on. They cost the company nothing today and everything later, because every warrant exercised means another share in existence and a slightly smaller slice for everyone already holding one.
Metaplanet says it has cancelled 131.3 million potential shares, or 41.1% of the Series 10 pool, and cut the remaining unexercised shares by 55.5% to roughly 105.4 million. CoinDesk, covering the same announcement, reported the pool being cut to 188.2 million. Those are different measurements of the same thing, total pool against unexercised balance, and without the company’s own filing in front of us we can’t reconcile them precisely.
One further detail worth flagging. CryptoSlate’s headline frames this as the chief executive surrendering the rights personally. CoinDesk describes it as a cut to an executive reward pool. Whether the cancelled warrants were held solely by Simon Gerovich or spread across a wider group isn’t clear from the write-ups available, and none of them carry a direct quote from him on the reset. We haven’t seen a primary filing.
The arithmetic the announcement assumes you know
Here is the mechanic underneath all of this, because the reporting takes it for granted.
Imagine a company holding 1,000 bitcoin with 1,000 shares in issue. Each share is backed by one coin. Now suppose investors are willing to pay the equivalent of two bitcoin for one of those shares, because they like the management, or the tax treatment, or simply the convenience of owning bitcoin exposure in a brokerage account. The company can issue a new share, take that money, buy two bitcoin with it, and every existing holder ends up with more bitcoin behind their share than they had that morning. Dilution has made them richer.
Run the same trade when the share trades below the value of the bitcoin backing it and the machine runs in reverse. New shares raise less than they cost in bitcoin per share, and the loss lands on the people who were already there. The premium, usually called mNAV in these stories, is the whole engine. Without it, a bitcoin treasury company is just a fund that keeps issuing stock.
Metaplanet’s board reviewed its past equity raises against exactly this: the premium at which shares were sold, the bitcoin yield generated, and what shareholders were left with. Financings up to mid-2025 came at high multiples. After September, per the company, the gains per diluted share weakened sharply. That date is where it drew the line, and the compensation created by issuance after it is what has been extinguished.
What a cancelled warrant does and doesn’t do
Removing 131.3 million potential shares is a genuine benefit to existing holders, because dilution that never happens can’t cost them anything. But nothing about the company’s bitcoin position, its purchase prices or its debt has changed as a result of Tuesday’s announcement. A reward pool is set by a board and can be reset by a board.
Cointelegraph also reported a second decision from the same session: a Hong Kong subsidiary capitalised at roughly $1m, to trade bitcoin, equities and credit products. At that size it’s a licence-and-structure exercise rather than a trading operation, and it should be read as an intention rather than a business.
Our own inference, clearly labelled as that: the sector-wide condition Metaplanet is describing, a shrinking premium to the value of the coins held, is not specific to Tokyo. Any listed company still raising equity to buy bitcoin is running the same equation, and the answer changes with the share price rather than with the bitcoin price.
What to watch
The next filing. A press announcement about warrants is a board statement; the quarterly accounts are where the share count, the holdings and the average purchase price all have to line up in one place, and that document will settle what the two different pool figures actually refer to.
Then the buying. If Metaplanet keeps issuing shares to buy bitcoin, the test is the premium it gets when it does. Cancelling rewards earned during a weak run says one thing. Not repeating the raises that produced it would say considerably more. Our markets coverage follows the treasury companies as the filings land.