Mariner’s REX-Osprey SOL + Staking ETF SSK Stock Holding History

Mariner’s Portfolio SSK Stock Details SSK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-8,512	Closed	-$272K	–	3861
2025 Q3	$272K	Buy	+8,512	New	+$258K	﹤0.01%	2893

Other funds holding SSK

LSC

Logan Stone Capital Chicago, Illinois $360M AUM 9.71% 1-Year Est. Return

FTUS

Flow Traders U.S. New York $3.16B AUM 19.52% 1-Year Est. Return

DRW Securities Chicago, Illinois $7.21B AUM 20.54% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

OMC

Old Mission Capital Chicago, Illinois $6.3B AUM 14.68% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

EWA

Exit Wealth Advisors Atlanta, Georgia $195M AUM

CAPTRUST Financial Advisors Raleigh, North Carolina $57.3B AUM 18.32% 1-Year Est. Return

Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return

TRCT

Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return

Mariner's SSK Position: Q4 2025 in Review

Mariner sold out of REX-Osprey SOL + Staking ETF (SSK) in Q4 2025, closing a stake of 8,512 shares — an estimated $272K sold.

Mariner first reported a position in SSK in Q3 2025 and held it in 1 quarter. The position peaked at $272K in Q3 2025. 23 funds tracked by Wall St. Rank hold SSK as of Q4 2025.

Mariner reported no remaining REX-Osprey SOL + Staking ETF position as of Q4 2025 after selling out during the quarter.
Mariner sold 8,512 REX-Osprey SOL + Staking ETF shares in Q4 2025, an estimated $272K.
Mariner first reported a position in REX-Osprey SOL + Staking ETF in Q3 2025 and held it in 1 quarter.
Mariner's REX-Osprey SOL + Staking ETF position peaked at $272K in Q3 2025.
23 funds tracked by Wall St. Rank held REX-Osprey SOL + Staking ETF as of Q4 2025.

Based on Mariner's 13F filing for Q4 2025, filed 13 Feb 2026.