MAGNITE INC

Ticker: MGNI CUSIP: 55955D100 Class: Common Stock

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q3 2025

Shares 193,185 Value ($000) $4,208 Avg Close $23.61 Range $20.72 - $26.65

Q2 2025

Shares 143,150 Value ($000) $3,453 Avg Close $14.73 Range $8.22 - $24.46

Q2 2023

Shares 409,820 Value ($000) $5,594 Avg Close $11.13 Range $8.21 - $14.00

Q1 2023

Shares 277,780 Value ($000) $2,572 Avg Close $10.65 Range $8.21 - $14.21

Q4 2022

Shares 186,750 Value ($000) $1,978 Avg Close $9.13 Range $5.59 - $12.90

Q1 2021

Shares 245,191 Value ($000) $10,202 Avg Close $43.32 Range $22.65 - $64.39

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	193,185	$4,208	$23.61	$20.72 - $26.65
Q2 2025	143,150	$3,453	$14.73	$8.22 - $24.46
Q2 2023	409,820	$5,594	$11.13	$8.21 - $14.00
Q1 2023	277,780	$2,572	$10.65	$8.21 - $14.21
Q4 2022	186,750	$1,978	$9.13	$5.59 - $12.90
Q1 2021	245,191	$10,202	$43.32	$22.65 - $64.39