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Starboard Value’s Riot Platforms RIOT Stock Holding History

Starboard Value’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 		$705K Buy
+792,500
New +$12.2M 0.02% 25
2025
Q3 		– Sell
-187,600
Closed -$101K – 25
2025
Q2 		$101K Buy
+187,600
New +$1.59M ﹤0.01% 25

Other funds holding RIOT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
SA
Situational Awareness San Francisco, California $13.7B AUM 334.5% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $37.7B AUM 34.44% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Starboard Value's RIOT Position: Q1 2026 in Review

Starboard Value increased its Riot Platforms (RIOT) stake by 22% in Q1 2026, buying an estimated $43M and bringing the position to 15,544,576 shares worth $192M. The position accounts for 4.2% of the portfolio, ranked #10.

Starboard Value first reported a position in RIOT in Q4 2024 and has held it in 6 quarters since. 402 funds tracked by Wall St. Rank hold RIOT as of Q1 2026.

  • Starboard Value held 15,544,576 shares of Riot Platforms worth $192M as of Q1 2026.
  • Starboard Value bought 2,800,000 Riot Platforms shares in Q1 2026, an estimated $43M.
  • Riot Platforms made up 4.2% of Starboard Value's portfolio in Q1 2026, its #10 holding.
  • Starboard Value first reported a position in Riot Platforms in Q4 2024 and has held it in 6 quarters since.
  • 402 funds tracked by Wall St. Rank held Riot Platforms as of Q1 2026.

Based on Starboard Value's 13F filing for Q1 2026, filed 15 May 2026.