MAGNITE INC

Ticker: MGNI CUSIP: 55955D100 Class: Common Stock

Alta Park Capital, LP's Holding History (CIK: 0001621855)

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

Q3 2025

Shares 255,698 Value ($000) $5,569 Avg Close $23.61 Range $20.72 - $26.65

Q2 2025

Shares 413,602 Value ($000) $9,976 Avg Close $14.73 Range $8.22 - $24.46

Q3 2021

Shares 514,228 Value ($000) $14,398 Avg Close $30.09 Range $24.01 - $36.59

Q1 2021

Shares 428,891 Value ($000) $17,846 Avg Close $43.32 Range $22.65 - $64.39

Q4 2020

Shares 1,586,833 Value ($000) $48,732 Avg Close $15.13 Range $6.73 - $33.00

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	255,698	$5,569	$23.61	$20.72 - $26.65
Q2 2025	413,602	$9,976	$14.73	$8.22 - $24.46
Q3 2021	514,228	$14,398	$30.09	$24.01 - $36.59
Q1 2021	428,891	$17,846	$43.32	$22.65 - $64.39
Q4 2020	1,586,833	$48,732	$15.13	$6.73 - $33.00