MediaAlpha, Inc. (MAX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

17,948,469Shares held by institutions

$169,972,001Value of institutional holdings

84.55%Institutional ownership %

3.43%Shares Changed QoQ

148No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

MediaAlpha, Inc. (NYSE:MAX) has 168 institutional investors with active 13F positions as of December 2025.

These investors held 84.3% of outstanding shares in December 2025, down from 86.6% in September 2025.
They increased total shares held in MediaAlpha by 3.18% from the prior quarter, while the number of investors in MAX increased 4.35% year over year.
Activity in MAX broke down as 105 buyers, 50 sellers, and 13 unchanged among 168 total holders.
The aggregate institutional position in MediaAlpha amounted to 47.72Mn shares as of December 2025, up by 1.47Mn shares quarter on quarter, and down 1.2Mn shares year over year.
White Mountains Insurance Group Ltd leads ownership in MAX with 17.86Mn shares as of December 31, 2025, equal to 31.54% of outstanding shares.
The biggest buyers of MediaAlpha for the quarter ending December 2025 included Divisadero Street Capital Management, LP (762.1K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (335.45K), Triad Investment Management (275.44K), J. Goldman & Co LP (255.34K), Stoic Point Capital Management LLC (207.3K).
The largest sales of MAX for the quarter ending December 2025 came from Jpmorgan Chase & Co (748.99K), MILLENNIUM MANAGEMENT LLC (677.81K), Goldman Sachs Group Inc (550.59K), Lighthouse Investment Partners, LLC (271.88K), Qube Research & Technologies Ltd (220.33K).
According to Business Quant data, leading holders of MAX for December 2025 are White Mountains Insurance Group Ltd (17.86Mn), BlackRock, Inc. (3.55Mn), VANGUARD GROUP INC (2.57Mn), Jpmorgan Chase & Co (1.37Mn), Clearline Capital LP (1.3Mn), RENAISSANCE TECHNOLOGIES LLC (1.05Mn), Morgan Stanley (960.15K), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (855.9K), Divisadero Street Capital Management, LP (849.01K), AQR CAPITAL MANAGEMENT LLC (804.1K).

168 Institutional Holders

17,948,469 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-21,725	-0.61%	$0.00
White Mountains Insurance Group Ltd	31 Dec, 2025	0	0.00%	$0.00
Divisadero Street Capital Management, LP	31 Dec, 2025	762,104	876.92%	$0.00
Barclays Plc	31 Dec, 2025	-60,941	-40.00%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-29,629	-1.14%	$0.00
Nuveen, LLC	31 Dec, 2025	-23,926	-3.47%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	5,582	19,935.71%	$0.00
Jpmorgan Chase & Co	31 Dec, 2025	-748,986	-35.38%	$0.00
Shay Capital LLC	31 Dec, 2025	-199,100	-25.20%	$0.00
Clearline Capital LP	31 Dec, 2025	10,604	0.82%	$0.00
Qube Research & Technologies Ltd	31 Dec, 2025	-220,330	-43.69%	$0.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	100,300	10.61%	$0.00
Triad Investment Management	31 Dec, 2025	275,437	0.00%	$0.00
Morgan Stanley	31 Dec, 2025	88,123	10.11%	$0.00
Pacer Advisors, Inc.	31 Dec, 2025	16,597	6.74%	$0.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	335,452	64.45%	$0.00
Y-Intercept (Hong Kong) Ltd	31 Dec, 2025	2,736	1.32%	$0.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	33,416	4.34%	$0.00
Stoic Point Capital Management LLC	31 Dec, 2025	207,298	0.00%	$0.00
J. Goldman & Co LP	31 Dec, 2025	255,342	48.08%	$0.00

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