Exhibit 99.1 MEDIAALPHA ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS • Fourth quarter revenue of $117 million, down 6% year over year; Full year revenue of $388 million, down 15% year over year • Fourth quarter Transaction Value of $165 million, down 2% year over year; Full year Transaction Value of $593 million, down 20% year over year • Fourth quarter Transaction Value from Property & Casualty down 4% year over year to $54 million; Full year Transaction Value from Property & Casualty down ...