How many institutions held MAX - MediaAlpha, Inc. - Class A Common Stock, par value $0.01 per share in Q3 2023?

88 institutional investors reported MAX - MediaAlpha, Inc. - Class A Common Stock, par value $0.01 per share for Q3 2023. Use the holders table for investor-level position and value details.

MediaAlpha, Inc. - Class A Common Stock, par value $0.01 per share (MAX)

Q: What does CUSIP 58450V104 represent in this 13F holders report?

CUSIP 58450V104 is the security identifier for MAX - MediaAlpha, Inc. - Class A Common Stock, par value $0.01 per share used to aggregate holder disclosures.

CUSIP: 58450V104

Q3 2023 13F Holders as of 30 Sep 2023

Security type / class: Equity / Class A Common Stock, par value $0.01 per share
Total 13F shares: 41,318,609
Total 13F value: $341,293,559
Share change: -3,644,817
Put/Call ratio: 11700%
SEC-reported price per share: $8.26
Number of holders: 88
Value change: -$30,498,529
Number of buys: 22
Number of sells: 69
Shares outstanding: 50,873,544

Security key

58450V104

Report period

Q3 2023

Institutions

Top holders

MAX full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 MediaAlpha, Inc. SEC filings MediaAlpha, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 58450V104

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of MAX - MediaAlpha, Inc. - Class A Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

WM Birkdale, Ltd.

Disclosed value leader

WHITE MOUNTAINS INSURANCE...

Comparable rows

0/15

Latest evidence

30 Jun 2023

3/4/5 13F Highest disclosed value: $235,653,752 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

WHITE MOUNTAINS INSURANCE GROUP LTD has the largest disclosed position value at $235.65M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens WHITE MOUNTAINS INSURANCE GROUP LTD's linked filing trail.

Disclosed position value Top 5

WM Birkdale, Ltd. $153.34M

WM Hinson (Bermuda) Ltd. $56.56M

WHITE MOUNTAINS INSURANCE GROUP LTD $235.65M

KAYNE ANDERSON RUDNICK INVESTMENT... $61.9M

Broad Bay Capital Management, LP $27.53M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
WM Birkdale, Ltd.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$153,342,381 16,039,998 shares	—	22 Dec 2022
WM Hinson (Bermuda) Ltd.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$56,564,761 5,916,816 shares	—	30 Jun 2023
WHITE MOUNTAINS INSURANCE GROUP LTD	13F Company 13F	— denominator unverified	$235,653,752 22,856,814 shares	—	30 Jun 2023
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	13F Company 13F	— denominator unverified	$61,903,663 6,004,235 shares	—	30 Jun 2023
Broad Bay Capital Management, LP	13F Company 13F	— denominator unverified	$27,533,061 2,670,520 shares	—	30 Jun 2023
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$20,675,272 2,005,361 shares	—	30 Jun 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

41,318,609

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

Q3 2023 holders

Holder diff

-5

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 value	Q3 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend