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May 22 – May 28, 2026
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Treasury activity this week
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11 BTC |
$825.8K
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310 ETH |
$522.4K
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| Combined this week |
$1.3M
· 3 entities
-100% vs last week
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| Last week: $2.0B · 6 entities |
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| Market |
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BTC |
$65.7K+6.5% 7d |
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F&G 23 · Extreme Fear |
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ETH |
$1.8K+8.8% 7d |
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F&G 50 · Neutral |
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SOL |
$74+13.4% 7d |
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F&G 53 · Neutral |
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The big picture
The Week
Corporate treasury activity remained subdued this week, with three companies adding $1.3M across BTC and ETH. The Smarter Web Company PLC (SWC.L) posted the week's largest purchase: 10 BTC ($749.0K), filed on the London Stock Exchange's Regulatory News Service. Parataxis Ethereum, Inc. (290560.KQ) acquired 310 ETH ($522.4K), marking rare standalone ETH buying among the tracked cohort. Bitcoin Treasury Capital AB (BTC-B.STO) added 1 BTC ($76.8K). No new corporate stackers entered the market this week, and no meaningful disposals occurred.
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Filings
Recent Purchases
See filings as they land →
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Worth reading
Notable Filings
BitMine Immersion Technologies disclosed a total position of 5,390,404 ETH, up 111,942 ETH ($231.9M) since its last disclosure — the week's largest cumulative balance reveal. Strive, Inc. disclosed 15,391 BTC, an increase of 1,763 BTC ($133.7M) since prior filing. Sequans Communications S.A. reported 658 BTC, up 856 BTC ($62.9M) cumulatively. These three disclosures aggregate to $428.5M in new balance-sheet positions across two reporting periods, dwarfing the week's discrete purchases and underscoring that most corporate accumulation surfaces in quarterly filings, not weekly RNS announcements.
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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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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
2 entities
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$825.8K
61.3%
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 ETH
1 entity
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$522.4K
38.7%
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ETH purchases this week (one company, 310 ETH) matched BTC filing count (two companies, 11 BTC total), though BTC retained USD dominance at $825.8K versus $522.4K for ETH. The cohort remains heavily BTC-weighted; even modest ETH buying from a single filer reshuffled the weekly mix. Balance disclosures continue to dwarf spot purchases — this week's three disclosed positions added $428.5M in cumulative holdings against $1.3M in new buys.
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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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