ARK 21SHARES BITCOIN ETF (ARKB) Stock Institutional Trading Activity


ARK 21SHARES BITCOIN ETF (ARKB) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC and ARK Invest. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCBuy81,000127,600$3,705,504
Q3 2025ARK InvestSell-299,2926,322,716$240,389,662
Q3 2025Renaissance Technologies LLCSell-117,20046,600$1,771,732
Q2 2025ARK InvestBuy3,752,5356,622,008$237,001,666
Q2 2025Renaissance Technologies LLCBuy148,300163,800$5,862,402
Q1 2025ARK InvestSell-230,7592,869,473$235,870,681
Q4 2024ARK InvestSell-42,8983,100,232$289,158,639
Q4 2024Renaissance Technologies LLCSell-4,00015,500$1,445,685
Q3 2024ARK InvestSell-272,2353,143,130$199,494,461
Q2 2024ARK InvestBuy506,3473,415,365$204,853,593
Q2 2024Renaissance Technologies LLCSell-13,00019,500$1,169,610
Q1 2024ARK InvestBuy2,909,0182,909,018$206,482,098
Q1 2024Renaissance Technologies LLCBuy32,50032,500$2,307

Frequently asked questions about ARKB activity

  • Which institutional owners are buying ARKB?

    Institutional owners buying ARKB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ARKB activity?

    "Buy" means an investor increased their reported position in ARKB compared to the prior reporting period. This reflects growing exposure to ARK 21SHARES BITCOIN ETF (ARKB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ARKB increasing?

    Institutional interest in ARKB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.