Westfield Capital Management
RIOT icon

Westfield Capital Management’s Riot Platforms RIOT Stock Holding History

Westfield 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
Q2 		$27.8M Sell
1,013,804
-2,486,076
-71% -$56M 0.09% 205
2026
Q1 		$43.3M Buy
+3,499,880
New +$53.7M 0.18% 155
2025
Q4 		– Sell
-1,350,027
Closed -$25.7M – 264
2025
Q3 		$25.7M Sell
1,350,027
-380,269
-22% -$5.27M 0.11% 177
2025
Q2 		$19.6M Buy
1,730,296
+95,119
+6% +$809K 0.08% 180
2025
Q1 		$11.6M Buy
+1,635,177
New +$17M 0.06% 183

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Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
SA
Situational Awareness San Francisco, California $20.2B AUM 612.59% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
SV
Starboard Value New York $4.52B AUM 19.34% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Westfield Capital Management's RIOT Position: Q2 2026 in Review

Westfield Capital Management reduced its Riot Platforms (RIOT) stake by 71% in Q2 2026, selling an estimated $56M and leaving 1,013,804 shares worth $27.8M. The position accounts for 0.09% of the portfolio, ranked #205.

Westfield Capital Management first reported a position in RIOT in Q1 2025 and has held it in 5 quarters since. The position peaked at $43.3M in Q1 2026. 446 funds tracked by Wall St. Rank hold RIOT as of Q2 2026.

  • Westfield Capital Management held 1,013,804 shares of Riot Platforms worth $27.8M as of Q2 2026.
  • Westfield Capital Management sold 2,486,076 Riot Platforms shares in Q2 2026, an estimated $56M.
  • Riot Platforms made up 0.09% of Westfield Capital Management's portfolio in Q2 2026, its #205 holding.
  • Westfield Capital Management first reported a position in Riot Platforms in Q1 2025 and has held it in 5 quarters since.
  • Westfield Capital Management's Riot Platforms position peaked at $43.3M in Q1 2026.
  • 446 funds tracked by Wall St. Rank held Riot Platforms as of Q2 2026.

Based on Westfield Capital Management's 13F filing for Q2 2026, filed 12 Aug 2026.