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Dec 12 – Dec 18, 2025 · 1 new stacker
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Treasury activity this week
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54,703 BTC |
$4.8B
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| Combined this week |
$4.8B
· 4 entities
+58% vs last week
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| Last week: $3.0B · 6 entities |
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| Market |
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BTC |
$65.6K+6.4% 7d |
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F&G 23 · Extreme Fear |
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ETH |
$1.8K+8.7% 7d |
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F&G 49 · Neutral |
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SOL |
$74+13.3% 7d |
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F&G 52 · Neutral |
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The big picture
The Week
Twenty One Capital (XXI), a new entrant to the corporate-treasury cohort, acquired 24,500 BTC ($2.1B) on December 12th, making it the week's dominant buyer and immediately landing at rank nine among all corporate and sovereign BTC holders. The company executed a series of tranches across the same day at prices ranging from $84,863 to $108,449 per BTC. Across four distinct companies, the market absorbed 54,703 BTC ($4.8B) in net purchases this week, with Strategy adding 10,644 BTC ($980.0M) on December 15th. No reductions occurred. The Fear and Greed Index sat at 23 (Extreme Fear) at week-end, while BTC posted a 6.4% gain over the seven-day period.
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Filings
Recent Purchases
~ Estimated value — the filing disclosed how many coins changed hands but no dollar figure, so we value it at the market price.
See filings as they land →
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Worth reading
Notable Filings
Twenty One Capital's entry into the BTC treasury space was disclosed via 8-K filing on December 12th (SEC accession ea0269460-8k_twenty.htm). The filing disclosed the aggregate purchase price of $2.1B but did not itemize the tranches separately, suggesting a staged acquisition executed with multiple counterparties or through an ATM-like vehicle. Strategy's 10,644 BTC add via 8-K (December 15th) extended its accumulation streak; the company now holds 846,843 BTC ($55.6B at current valuation), maintaining rank one. Balance disclosures revealed BitMine Immersion Technologies (BMNR) holds 3,967,210 ETH ($713.6M added since its last filing), while SharpLink Gaming (SBET) disclosed 863,424 ETH ($10.1M accumulated). Both ETH positions represent multi-period cumulative changes, not this-week acquisitions.
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Period-end balances
Disclosed This Week
These companies revealed their total balance-sheet position in a filing this week. The change shown is cumulative since each company's last disclosure — a multi-quarter figure, not a purchase made this week.
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First-time filings
New Stackers
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Leaderboard
Top Five
The largest tracked holders overall — companies, funds, and governments — ranked by total position, not by this week's activity.
Full leaderboard →
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The breakdown
This Week by Asset
| Asset |
This week's activity |
Net USD · share |
 BTC
4 entities
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$4.8B
100.0%
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Twenty One Capital's debut purchase of 43,514 BTC in a single week propelled it into the top ten holders by USD value ($2.9B), displacing prior marginal stackers. This marks the first instance this quarter where a new corporate entrant entered the rankings via a single tranched deployment, rather than organic accumulation. The speed and scale suggest institutional access to deep counterparty liquidity or a pre-negotiated facility, consistent with spot-ETF era settlement mechanics.
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Unlock the full picture
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You're reading Treasuries Weekly
— a briefing on corporate BTC, ETH, and SOL balance-sheet adoption from CorpStacking.
Editorial is not investment advice. Data sourced from SEC EDGAR, CoinGecko, and primary corporate filings.
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© 2026 J & M Sorce Holdings, LLC, d/b/a CorpStacking.
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