MEDIAALPHA INC

Ticker: MAX CUSIP: 58450V104 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025

Shares 2,329 Value ($000) $30 Avg Close $12.21 Range $10.36 - $13.92

Q3 2025

Shares 2,657 Value ($000) $30 Avg Close $11.03 Range $9.21 - $13.72

Q1 2025

Shares 2,187 Value ($000) $20 Avg Close $10.68 Range $8.21 - $13.24

Q4 2024

Shares 14,447 Value ($000) $163 Avg Close $14.38 Range $10.21 - $20.91

Q2 2024

Shares 68,186 Value ($000) $898 Avg Close $18.40 Range $12.80 - $25.78

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,329	$30	$12.21	$10.36 - $13.92
Q3 2025	2,657	$30	$11.03	$9.21 - $13.72
Q1 2025	2,187	$20	$10.68	$8.21 - $13.24
Q4 2024	14,447	$163	$14.38	$10.21 - $20.91
Q2 2024	68,186	$898	$18.40	$12.80 - $25.78