William Blair & Company
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William Blair & Company’s Riot Platforms RIOT Stock Holding History

William Blair & Company’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 		$219K Buy
17,737
+52
+0.3% +$798 ﹤0.01% 1449
2025
Q4 		$224K Sell
17,685
-3,065
-15% -$52.4K ﹤0.01% 1418
2025
Q3 		$395K Hold
20,750
– – ﹤0.01% 1197
2025
Q2 		$234K Hold
20,750
– – ﹤0.01% 1357
2025
Q1 		$148K Buy
+20,750
New +$215K ﹤0.01% 1447

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

William Blair & Company's RIOT Position: Q1 2026 in Review

William Blair & Company increased its Riot Platforms (RIOT) stake by 0.29% in Q1 2026, buying an estimated $798 and bringing the position to 17,737 shares worth $219K. The position accounts for ﹤0.01% of the portfolio, ranked #1449.

William Blair & Company first reported a position in RIOT in Q1 2025 and has held it in 5 quarters since. The position peaked at $395K in Q3 2025. 403 funds tracked by Wall St. Rank hold RIOT as of Q1 2026.

  • William Blair & Company held 17,737 shares of Riot Platforms worth $219K as of Q1 2026.
  • William Blair & Company bought 52 Riot Platforms shares in Q1 2026, an estimated $798.
  • Riot Platforms made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1449 holding.
  • William Blair & Company first reported a position in Riot Platforms in Q1 2025 and has held it in 5 quarters since.
  • William Blair & Company's Riot Platforms position peaked at $395K in Q3 2025.
  • 403 funds tracked by Wall St. Rank held Riot Platforms as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.