MediaAlpha, Inc.

Historical 13F Holders

Symbol
MAX
CUSIP
58450V104
All holders as of
Q2 2026
Type
Equity
Class
CL A
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 58450V104 since 12/18/2024, largest first.

Filer % of Class Filed
White Mountains Insurance Group, Ltd. 13D/A
33.0% 5/1/2026
Event 4/29/2026
Eugene Nonko 13D/A
9.8% 8/26/2026
Event 8/25/2026
Divisadero Street Capital Management, LP 13G
5.8% 7/28/2026
Event 7/21/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (3)
Vanguard Group Inc 13G/A 4.6% 10/31/2025
Event 9/30/2025
BlackRock, Inc. 13G/A 4.2% 4/29/2025
Event 3/31/2025
Insignia Capital Partners GP, L.L.C. 13G/A
0% 11/12/2025
Event 9/30/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 9 342 k $3.29 M
2026 Q2 160 49.0 M $635 M
2026 Q1 171 48.5 M $452 M
2025 Q4 177 47.8 M $619 M
2025 Q3 165 48.9 M $556 M
2025 Q2 157 49.2 M $538 M
2025 Q1 154 47.2 M $436 M
2024 Q4 171 48.2 M $543 M
2024 Q3 162 49.2 M $890 M
2024 Q2 160 51.1 M $672 M
2024 Q1 130 45.0 M $917 M
2023 Q4 98 42.5 M $474 M
2023 Q3 92 41.4 M $342 M
2023 Q2 97 45.0 M $464 M
2023 Q1 99 40.2 M $603 M
2022 Q4 105 40.5 M $403 M
2022 Q3 89 40.9 M $358 M
2022 Q2 90 39.9 M $393 M
2022 Q1 97 40.9 M $677 M
2021 Q4 96 39.9 M $617 M
2021 Q3 91 37.9 M $708 M
2021 Q2 100 37.8 M $1.59 B
2021 Q1 99 36.5 M $1.29 B
2020 Q4 67 32.3 M $1.26 B