RIOT PLATFORMS INC

Ticker: RIOT CUSIP: 767292105 Class: Common Stock

Starboard Value LP's Holding History (CIK: 0001517137)

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

Q4 2025

Shares 12,744,576 Value ($000) $161,474 Avg Close $17.11 Range $12.04 - $23.93

Q3 2025

Shares 8,818,000 Value ($000) $167,807 Avg Close $13.85 Range $10.59 - $20.13

Q2 2025

Shares 4,676,900 Value ($000) $52,849 Avg Close $8.50 Range $6.19 - $11.44

Q1 2025

Shares 12,700,000 Value ($000) $90,424 Avg Close $10.37 Range $6.87 - $14.54

Q4 2024

Shares 12,704,035 Value ($000) $129,708 Avg Close $10.89 Range $6.98 - $15.87

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	12,744,576	$161,474	$17.11	$12.04 - $23.93
Q3 2025	8,818,000	$167,807	$13.85	$10.59 - $20.13
Q2 2025	4,676,900	$52,849	$8.50	$6.19 - $11.44
Q1 2025	12,700,000	$90,424	$10.37	$6.87 - $14.54
Q4 2024	12,704,035	$129,708	$10.89	$6.98 - $15.87