RIOT PLATFORMS INC

Ticker: RIOT CUSIP: 767292105 Class: Common Stock

Mainstream Capital Management LLC's Holding History (CIK: 0002043084)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 16,666 Value ($000) $211 Avg Close $17.11 Range $12.04 - $23.93

Q3 2025

Shares 18,532 Value ($000) $353 Avg Close $13.85 Range $10.59 - $20.13

Q2 2025

Shares 18,532 Value ($000) $209 Avg Close $8.50 Range $6.19 - $11.44

Q1 2025

Shares 18,532 Value ($000) $132 Avg Close $10.37 Range $6.87 - $14.54

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,666	$211	$17.11	$12.04 - $23.93
Q3 2025	18,532	$353	$13.85	$10.59 - $20.13
Q2 2025	18,532	$209	$8.50	$6.19 - $11.44
Q1 2025	18,532	$132	$10.37	$6.87 - $14.54