ARK 21Shares Bitcoin ETF
ARKB
146 hedge funds and large institutions have $798M invested in ARK 21Shares Bitcoin ETF in 2026 Q1 according to their latest regulatory filings, with 16 funds opening new positions, 57 increasing their positions, 37 reducing their positions, and 36 closing their positions.
287% more call options, than puts
Call options by funds: $10.7M | Put options by funds: $2.77M
54% more repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 37
14% less funds holding in top 10
Funds holding in top 10: 7 → 6 (-1)
15% less funds holding
Funds holding: 171 → 146 (-25)
22% less capital invested
Capital invested by funds: $1.03B → $798M (-$229M)
56% less first-time investments, than exits
New positions opened: 16 | Existing positions closed: 36
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
ISS
Intesa Sanpaolo SpA.
Turin,
Italy
|
+$28.4M |
| 2 |
TI
Tidal Investments
Milwaukee,
Wisconsin
|
+$21.6M |
| 3 |
SSA
Schonfeld Strategic Advisors
New York
|
+$20.9M |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$11.2M |
| 5 |
KC
Kaleidoscope Capital
Boston,
Massachusetts
|
+$5.23M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$66.4M |
| 2 |
DS
DRW Securities
Chicago,
Illinois
|
-$7.61M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$5.94M |
| 4 |
I
InterCapital
Austin,
Texas
|
-$4.65M |
| 5 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
-$4.39M |
ARKB Hedge Fund Activity: Q1 2026 in Review
146 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in ARK 21Shares Bitcoin ETF (ARKB) for Q1 2026, worth a combined $798M — down 22% from $1.03B a quarter earlier.
Sellers outnumbered buyers: 36 funds closed out of ARKB and 16 opened new positions — a net loss of 20 holders — while 37 trimmed existing stakes and 57 added.
The largest buyer was Intesa Sanpaolo SpA., adding an estimated $28.4M. The largest seller was Millennium Management, cutting an estimated $66.4M.
- 146 institutional investors held ARK 21Shares Bitcoin ETF (ARKB) as of Q1 2026, down from 171 in Q4 2025.
- Funds reported $798M of ARK 21Shares Bitcoin ETF stock for Q1 2026, down 22% quarter-over-quarter.
- 16 funds opened new ARK 21Shares Bitcoin ETF positions in Q1 2026 and 36 closed out, a net change of -20 holders.
- The largest ARK 21Shares Bitcoin ETF buyer in Q1 2026 was Intesa Sanpaolo SpA., an estimated $28.4M added.
- The largest ARK 21Shares Bitcoin ETF seller in Q1 2026 was Millennium Management, an estimated $66.4M sold.
Based on aggregated 13F filings for Q1 2026.