Mariner
ARKB icon

Mariner’s ARK 21Shares Bitcoin ETF ARKB Stock Holding History

Mariner’s Portfolio ARKB Stock Details ARKB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$452K Sell
23,216
-23,408
-50% -$557K ﹤0.01% 2527
2026
Q1 		$1.05M Buy
46,624
+2,934
+7% +$74.4K ﹤0.01% 1930
2025
Q4 		$1.27M Sell
43,690
-15,725
-26% -$523K ﹤0.01% 1784
2025
Q3 		$2.26M Buy
59,415
+8,922
+18% +$340K ﹤0.01% 1358
2025
Q2 		$1.81M Sell
50,493
-6,411
-11% -$210K ﹤0.01% 1402
2025
Q1 		$1.56M Sell
56,904
-660
-1% -$20.4K ﹤0.01% 1375
2024
Q4 		$1.79M Buy
57,564
+33
+0.1% +$912 ﹤0.01% 1278
2024
Q3 		$1.22M Buy
57,531
+10,128
+21% +$206K ﹤0.01% 1464
2024
Q2 		$948K Buy
47,403
+3,840
+9% +$83.9K ﹤0.01% 1538
2024
Q1 		$1.03M Buy
+43,563
New +$795K ﹤0.01% 1477

Other funds holding ARKB

AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
SSA
Schonfeld Strategic Advisors New York $27.9B AUM 51.18% 1-Year Est. Return
GD
Galaxy Digital New York $1.7B AUM
ISS
Intesa Sanpaolo SpA. Turin, Italy $2.92B AUM
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
KC
Kaleidoscope Capital Boston, Massachusetts $271M AUM 24.36% 1-Year Est. Return
TI
Tidal Investments Milwaukee, Wisconsin $57.8B AUM 72.54% 1-Year Est. Return
CWP
Cyndeo Wealth Partners St. Petersburg, Florida $2.12B AUM 24.61% 1-Year Est. Return

Mariner's ARKB Position: Q2 2026 in Review

Mariner reduced its ARK 21Shares Bitcoin ETF (ARKB) stake by 50% in Q2 2026, selling an estimated $557K and leaving 23,216 shares worth $452K. The position accounts for ﹤0.01% of the portfolio, ranked #2527.

Mariner first reported a position in ARKB in Q1 2024 and has held it in 10 quarters since. The position peaked at $2.26M in Q3 2025. 125 funds tracked by Wall St. Rank hold ARKB as of Q2 2026.

  • Mariner held 23,216 shares of ARK 21Shares Bitcoin ETF worth $452K as of Q2 2026.
  • Mariner sold 23,408 ARK 21Shares Bitcoin ETF shares in Q2 2026, an estimated $557K.
  • ARK 21Shares Bitcoin ETF made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2527 holding.
  • Mariner first reported a position in ARK 21Shares Bitcoin ETF in Q1 2024 and has held it in 10 quarters since.
  • Mariner's ARK 21Shares Bitcoin ETF position peaked at $2.26M in Q3 2025.
  • 125 funds tracked by Wall St. Rank held ARK 21Shares Bitcoin ETF as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.