Who owns MediaAlpha, Inc.?
Institutional ownership of MAX from SEC Form 13F filings across 115 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
115
13F holders
$238.8M
value, 2026 filers
38.6%
of shares outstanding (20.5M sh)
18
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of MAX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3.4M | $42.6M | 0.0% | 6.4% | -2.4% |
| 2 | JPMORGAN CHASE & CO | 1.9M | $23.3M | 0.0% | 3.5% | +7.7% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | $16.0M | 0.0% | 2.4% | -53.9% |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | 1.1M | $13.4M | 0.0% | 2% | -0.2% |
| 5 | ACADIAN ASSET MANAGEMENT LLC | 957,095 | $12,019 | 0.0% | 1.8% | +13.0% |
| 6 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 829,958 | $10.4M | 0.0% | 1.6% | -21.8% |
| 7 | MORGAN STANLEY | 821,170 | $10.3M | 0.0% | 1.6% | +16.8% |
| 8 | Nuveen, LLC | 752,447 | $9.5M | 0.0% | 1.4% | +7.3% |
| 9 | J. Goldman & Co LP | 598,070 | $7.5M | 0.2% | 1.1% | -49.4% |
| 10 | CITADEL ADVISORS LLC | 589,696 | $7.4M | 0.0% | 1.1% | +157.1% |
| 11 | Shay Capital LLC | 570,000 | $7.2M | 0.5% | 1.1% | -26.5% |
| 12 | JANE STREET GROUP, LLC | 551,625 | $6.9M | 0.0% | 1% | +94.9% |
| 13 | D. E. Shaw & Co., Inc. | 535,926 | $6.7M | 0.0% | 1% | +56.7% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 433,046 | $5.4M | 0.0% | 0.8% | -20.8% |
| 15 | GOLDMAN SACHS GROUP INC | 428,866 | $5.4M | 0.0% | 0.8% | -31.2% |
| 16 | TWO SIGMA INVESTMENTS, LP | 409,480 | $5.1M | 0.0% | 0.8% | +133.6% |
| 17 | HRT FINANCIAL LP | 372,929 | $4,687 | 0.0% | 0.7% | +13.2% |
| 18 | BANK OF AMERICA CORP /DE/ | 371,840 | $4.7M | 0.0% | 0.7% | +32.9% |
| 19 | NORTHERN TRUST CORP | 267,107 | $3.4M | 0.0% | 0.5% | -1.7% |
| 20 | Sixth Street Partners Management Company, L.P.NEW | 259,224 | $3.3M | 0.6% | 0.5% | new |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 259,224 | $3.3M | 0.0% | 0.5% | -5.5% |
| 22 | Squarepoint Ops LLC | 234,255 | $2.9M | 0.0% | 0.4% | +8.7% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 223,917 | $2.8M | 0.0% | 0.4% | -1.4% |
| 24 | TEACHER RETIREMENT SYSTEM OF TEXAS | 216,405 | $2.7M | 7.3% | 0.4% | +16.8% |
| 25 | ALLIANCEBERNSTEIN L.P. | 211,450 | $2.0M | 0.0% | 0.4% | +2.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.