Hudson Bay Capital Management’s Riot Platforms RIOT Stock Holding History

Hudson Bay Capital Management’s Portfolio RIOT Stock Details RIOT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$517K	Buy	+41,868	New	+$642K	﹤0.01%	971
2021 Q4	–	Sell	-185,000	Closed	-$4.75M	–	1183
2021 Q3	$4.75M	Buy	185,000 +165,000	+825%	+$5.31M	0.06%	366
2021 Q2	$753K	Buy	+20,000	New	+$715K	0.01%	763
2018 Q3	–	Sell	-305,534	Closed	-$1.94M	–	873
2018 Q2	$1.94M	Sell	305,534 -27,800	-8%	-$203K	0.03%	514
2018 Q1	$2.15M	Sell	333,334 -100,000	-23%	-$1.39M	0.04%	439
2017 Q4	$11.8M	Buy	+433,334	New	+$6.08M	0.25%	69

Other funds holding RIOT

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Starboard Value New York $4.57B AUM 4.97% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Situational Awareness San Francisco, California $13.7B AUM 334.5% 1-Year Est. Return

Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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

Hudson Bay Capital Management's RIOT Position: Q1 2026 in Review

Hudson Bay Capital Management opened a new position in Riot Platforms (RIOT) in Q1 2026: 41,868 shares worth $517K. The stake represents ﹤0.01% of the portfolio and ranks #971 among its holdings. This is a return to the name: Hudson Bay Capital Management previously reported a position in RIOT as recently as Q3 2021.

Hudson Bay Capital Management first reported a position in RIOT in Q4 2017 and has held it in 6 quarters since. The position peaked at $11.8M in Q4 2017. 403 funds tracked by Wall St. Rank hold RIOT as of Q1 2026.

Hudson Bay Capital Management held 41,868 shares of Riot Platforms worth $517K as of Q1 2026.
Riot Platforms was a new Hudson Bay Capital Management position in Q1 2026.
Riot Platforms made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #971 holding.
Hudson Bay Capital Management first reported a position in Riot Platforms in Q4 2017 and has held it in 6 quarters since.
Hudson Bay Capital Management's Riot Platforms position peaked at $11.8M in Q4 2017.
403 funds tracked by Wall St. Rank held Riot Platforms as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.