Mad River Investors’s Grayscale Bitcoin Mini Trust ETF BTC Stock Holding History

Mad River Investors’s Portfolio BTC Stock Details BTC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$2.12M	Buy	81,517 +300	+0.4%	+$9.53K	0.79%	14
2026 Q1	$2.44M	Buy	81,217 +3,570	+5%	+$121K	0.88%	14
2025 Q4	$3.01M	Sell	77,647 -4,532	-6%	-$201K	1.37%	14
2025 Q3	$4.16M	Buy	82,179 +3,893	+5%	+$197K	1.78%	12
2025 Q2	$3.74M	Hold	78,286	–	–	1.67%	11
2025 Q1	$2.86M	Buy	78,286 +200	+0.3%	+$8.25K	1.21%	12
2024 Q4	$3.27M	Sell	78,086 -3	-0%	-$110	1.52%	12
2024 Q3	$2.2M	Buy	+78,089	New	+$2.08M	1.22%	14

Other funds holding BTC

HKAM

Horizon Kinetics Asset Management New York $8.82B AUM 23.05% 1-Year Est. Return

Bullish George Town $178M AUM

Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return

Emory University Atlanta, Georgia $160M AUM 8.57% 1-Year Est. Return

Paragon Advisors College Station, Texas $476M AUM 31.93% 1-Year Est. Return

Tidal Investments Milwaukee, Wisconsin $57.8B AUM 72.54% 1-Year Est. Return

SDH

Sloy Dahl & Holst Vancouver, Washington $811M AUM 19.06% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Kaleidoscope Capital Boston, Massachusetts $271M AUM 24.36% 1-Year Est. Return

SteelPeak Wealth Woodland Hills, California $3.86B AUM 48.92% 1-Year Est. Return

Mad River Investors's BTC Position: Q2 2026 in Review

Mad River Investors increased its Grayscale Bitcoin Mini Trust ETF (BTC) stake by 0.37% in Q2 2026, buying an estimated $9.53K and bringing the position to 81,517 shares worth $2.12M. The position accounts for 0.79% of the portfolio, ranked #14.

Mad River Investors first reported a position in BTC in Q3 2024 and has held it in 8 quarters since. The position peaked at $4.16M in Q3 2025. 461 funds tracked by Wall St. Rank hold BTC as of Q2 2026.

Mad River Investors held 81,517 shares of Grayscale Bitcoin Mini Trust ETF worth $2.12M as of Q2 2026.
Mad River Investors bought 300 Grayscale Bitcoin Mini Trust ETF shares in Q2 2026, an estimated $9.53K.
Grayscale Bitcoin Mini Trust ETF made up 0.79% of Mad River Investors's portfolio in Q2 2026, its #14 holding.
Mad River Investors first reported a position in Grayscale Bitcoin Mini Trust ETF in Q3 2024 and has held it in 8 quarters since.
Mad River Investors's Grayscale Bitcoin Mini Trust ETF position peaked at $4.16M in Q3 2025.
461 funds tracked by Wall St. Rank held Grayscale Bitcoin Mini Trust ETF as of Q2 2026.

Based on Mad River Investors's 13F filing for Q2 2026, filed 3 Aug 2026.