MEDIAALPHA INC (MAX)
Institutional ownership reported to the SEC as of Q2 2026, across 23 quarters.
150
Reporting holders
$601.0M
Reported value
0.8%
Held as options
-2
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| WHITE MOUNTAINS INSURANCE GROUP LTD | $224.5M | 17,856,614 | 57.03% | 23q | HELD |
| BlackRock, Inc. | $42.6M | 3,392,357 | 0.00% | 8q | -2.4%-$1.1M |
| Clearline Capital LP | $34.1M | 2,713,890 | 2.04% | 13q | +4.8%+$1.5M |
| JPMORGAN CHASE & CO | $23.3M | 1,880,062 | 0.00% | 23q | +7.7%+$1.7M |
| VANGUARD CAPITAL MANAGEMENT LLC | $16.0M | 1,276,369 | 0.00% | 2q | -7.9%-$1.4M |
| GEODE CAPITAL MANAGEMENT, LLC | $13.4M | 1,068,308 | 0.00% | 23q | HELD |
| Divisadero Street Capital Management, LP | $12.8M | 1,019,988 | 0.29% | 5q | +1073.7%+$11.7M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $12.2M | 971,232 | 0.04% | 9q | +29.5%+$2.8M |
| JACOBS ASSET MANAGEMENT, LLC | $11.6M | 919,761 | 7.27% | 19q | -0.5%-$58.9K |
| STATE STREET CORP | $10.8M | 862,235 | 0.00% | 23q | +2.9%+$302.6K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $10.4M | 829,958 | 0.00% | 15q | -21.8%-$2.9M |
| MORGAN STANLEY | $10.3M | 821,170 | 0.00% | 23q | +16.8%+$1.5M |
| Nuveen, LLC | $9.5M | 752,447 | 0.00% | 6q | +7.3%+$641.7K |
| DIMENSIONAL FUND ADVISORS LP | $8.8M | 701,914 | 0.00% | 5q | +13.1%+$1.0M |
| J. Goldman & Co LP | $8.6M | 598,070 | 0.22% | 11q | -49.4%-$8.4M |
| CITADEL ADVISORS LLC | $8.5M | 589,696 | 0.00% | 23q | +157.1%+$5.2M |
| JANE STREET GROUP, LLC | $7.5M | 551,625 | 0.00% | 11q | +94.9%+$3.7M |
| RENAISSANCE TECHNOLOGIES LLC | $7.2M | 574,407 | 0.01% | 19q | -20.1%-$1.8M |
| Shay Capital LLC | $7.2M | 570,000 | 0.46% | 14q | -26.5%-$2.6M |
| D. E. Shaw & Co., Inc. | $6.7M | 535,926 | 0.00% | 12q | +56.7%+$2.4M |
| SPEECE THORSON CAPITAL GROUP INC | $6.1M | 489,098 | 1.31% | 2q | -2.0%-$124.6K |
| EVR Research LP | $5.5M | 440,000 | 2.73% | new | NEW |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $5.4M | 433,046 | 0.00% | 2q | -20.8%-$1.4M |
| GOLDMAN SACHS GROUP INC | $5.4M | 428,866 | 0.00% | 23q | -31.2%-$2.4M |
| TWO SIGMA INVESTMENTS, LP | $5.1M | 409,480 | 0.00% | 10q | +133.6%+$2.9M |
| AQR CAPITAL MANAGEMENT LLC | $4.9M | 391,641 | 0.00% | 9q | -18.7%-$1.1M |
| BANK OF AMERICA CORP /DE/ | $4.7M | 371,840 | 0.00% | 23q | +32.9%+$1.2M |
| Triad Investment Management | $4.6M | 368,731 | 5.11% | 8q | +10.4%+$438.3K |
| Stoic Point Capital Management LLC | $3.7M | 297,150 | 3.10% | 3q | +34.4%+$956.7K |
| NORTHERN TRUST CORP | $3.4M | 267,107 | 0.00% | 23q | -1.7%-$59.3K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $3.3M | 259,224 | 0.00% | 23q | -5.5%-$190.0K |
| Sixth Street Partners Management Company, L.P. | $3.3M | 259,224 | 0.00% | new | NEW |
| Squarepoint Ops LLC | $2.9M | 234,255 | 0.00% | 10q | +8.7%+$235.2K |
| VANGUARD FIDUCIARY TRUST CO | $2.8M | 223,917 | 0.00% | 2q | -1.4%-$40.2K |
| TEACHER RETIREMENT SYSTEM OF TEXAS | $2.7M | 216,405 | 0.01% | 9q | +16.8%+$390.7K |
| BNP PARIBAS FINANCIAL MARKETS | $2.6M | 209,204 | 0.00% | 7q | +272.2%+$1.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $2.3M | 180,171 | 0.00% | 9q | HELD |
| XTX Topco Ltd | $2.2M | 172,269 | 0.03% | 5q | +17.3%+$319.7K |
| ALGERT GLOBAL LLC | $2.1M | 170,870 | 0.03% | 2q | +1.1%+$23.3K |
| Man Group plc | $2.0M | 156,754 | 0.00% | 3q | +14.7%+$252.0K |
| ALLIANCEBERNSTEIN L.P. | $2.0M | 211,450 | 0.00% | 17q | +2.9%+$55.9K |
| PRINCIPAL FINANCIAL GROUP INC | $1.9M | 148,845 | 0.00% | 4q | +8.2%+$141.2K |
| Quantinno Capital Management LP | $1.7M | 136,034 | 0.00% | 4q | +26.8%+$361.5K |
| Russell Investments Group, Ltd. | $1.6M | 130,360 | 0.00% | 9q | +53.6%+$568.4K |
| STIFEL FINANCIAL CORP | $1.6M | 126,175 | 0.00% | new | NEW |
| VICTORY CAPITAL MANAGEMENT INC | $1.3M | 101,365 | 0.00% | 9q | +16.2%+$177.2K |
| Balyasny Asset Management L.P. | $1.3M | 101,046 | 0.00% | 3q | -7.1%-$97.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.2M | 23,247 | 0.00% | 11q | -87.7%-$8.7M |
| Qube Research & Technologies Ltd | $1.2M | 92,453 | 0.00% | 10q | -77.7%-$4.1M |
| PDT Partners, LLC | $1.1M | 84,022 | 0.06% | 6q | -6.7%-$75.4K |
| Bank of New York Mellon Corp | $1.0M | 81,504 | 0.00% | 23q | -6.3%-$68.5K |
| Walleye Capital LLC | $1.0M | 80,306 | 0.00% | new | NEW |
| FRANKLIN RESOURCES INC | $937.6K | 74,587 | 0.00% | 10q | -78.3%-$3.4M |
| Amundi | $883.8K | 70,311 | 0.00% | 3q | -10.0%-$98.0K |
| STATE OF WISCONSIN INVESTMENT BOARD | $883.8K | 70,309 | 0.00% | 5q | -33.8%-$450.6K |
| WINMILL & CO. INC | $818.3K | 65,102 | 0.18% | new | NEW |
| PEAK6 LLC | $786.9K | options only | 0.00% | new | OPTIONS |
| Swiss National Bank | $764.3K | 60,800 | 0.00% | 21q | +3.6%+$26.4K |
| BLAIR WILLIAM & CO/IL | $704.5K | 56,046 | 0.00% | 7q | HELD |
| GLOBEFLEX CAPITAL L P | $702.0K | 55,850 | 0.09% | 3q | -30.4%-$306.5K |
| Allianz Asset Management GmbH | $652.6K | 70,176 | 0.00% | 7q | HELD |
| Campbell & CO Investment Adviser LLC | $586.0K | 46,617 | 0.03% | 2q | +189.8%+$383.8K |
| Corient Private Wealth LP | $578.5K | 46,026 | 0.00% | 2q | +195.8%+$383.0K |
| RHUMBLINE ADVISERS | $577.4K | 45,932 | 0.00% | 23q | -4.1%-$24.5K |
| Hillsdale Investment Management Inc. | $577.0K | 45,900 | 0.01% | new | NEW |
| Allspring Global Investments Holdings, LLC | $563.5K | 44,831 | 0.00% | 8q | -6.4%-$38.4K |
| SEI INVESTMENTS CO | $561.1K | 44,637 | 0.00% | 23q | +24.9%+$111.9K |
| Mariner, LLC | $517.0K | 41,127 | 0.00% | 16q | -29.7%-$218.2K |
| Caption Management, LLC | $471.6K | 37,515 | 0.00% | 2q | -74.8%-$1.4M |
| MILLENNIUM MANAGEMENT LLC | $465.9K | 37,065 | 0.00% | 11q | -21.2%-$125.4K |
| DEUTSCHE BANK AG\ | $430.6K | 34,254 | 0.00% | 23q | -2.4%-$10.5K |
| Lighthouse Investment Partners, LLC | $427.4K | 34,001 | 0.01% | new | NEW |
| UBS Group AG | $422.4K | 33,602 | 0.00% | 23q | -78.2%-$1.5M |
| MERCER GLOBAL ADVISORS INC /ADV | $417.2K | 33,190 | 0.00% | 4q | +105.4%+$214.1K |
| BARCLAYS PLC | $381.5K | 30,349 | 0.00% | 18q | -33.1%-$188.7K |
| WELLS FARGO & COMPANY/MN | $354.0K | 28,163 | 0.00% | 23q | +14.3%+$44.2K |
| Legal & General Group Plc | $346.1K | 27,533 | 0.00% | 23q | HELD |
| Brevan Howard Capital Management LP | $340.9K | 27,117 | 0.00% | new | NEW |
| Dynamic Technology Lab Private Ltd | $338.0K | 26,868 | 0.08% | 2q | -38.4%-$210.4K |
| FMR LLC | $331.7K | 26,386 | 0.00% | 18q | -2.9%-$9.9K |
| Invesco Ltd. | $327.3K | 26,039 | 0.00% | 5q | +10.2%+$30.3K |
| TUDOR INVESTMENT CORP ET AL | $323.7K | 25,748 | 0.00% | new | NEW |
| ALLSTATE CORP | $317.9K | 25,287 | 0.00% | new | NEW |
| AXQ CAPITAL, LP | $315.7K | 25,117 | 0.03% | new | NEW |
| Abel Hall, LLC | $307.6K | 24,473 | 0.05% | 2q | -3.7%-$12.0K |
| CITIGROUP INC | $301.7K | 24,003 | 0.00% | 23q | +140.6%+$176.3K |
| Quantbot Technologies LP | $271.1K | 21,568 | 0.01% | 2q | -25.9%-$94.9K |
| MetLife Investment Management, LLC | $269.0K | 21,402 | 0.00% | 23q | HELD |
| JUPITER ASSET MANAGEMENT LTD | $266.1K | 21,172 | 0.00% | 2q | HELD |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $234.3K | 18,642 | 0.00% | 10q | HELD |
| SIMPLEX TRADING, LLC | $221.2K | options only | 0.00% | 2q | OPTIONS |
| VANGUARD ASSET MANAGEMENT, Ltd | $219.0K | 17,425 | 0.00% | 2q | HELD |
| Graham Capital Management, L.P. | $215.9K | 17,179 | 0.00% | 3q | +18.1%+$33.1K |
| Creative Planning | $203.9K | 16,220 | 0.00% | 5q | -18.7%-$46.8K |
| NOMURA HOLDINGS INC | $201.8K | 16,058 | 0.00% | new | NEW |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $198.0K | 14,811 | 0.00% | 5q | -29.2%-$81.6K |
| IEQ CAPITAL, LLC | $193.2K | 15,367 | 0.00% | 7q | -53.3%-$220.7K |
| EP Wealth Advisors, LLC | $192.0K | 15,273 | 0.00% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $178.6K | 14,208 | 0.00% | 9q | -11.9%-$24.2K |
| Jupiter Topco LLC | $174.2K | 13,862 | 0.00% | new | FIRST |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-28 | 13G | Divisadero Street Capital Management, LPwith 4 co-filers | 5.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 150 | $601.0M | 47,539,965 | 23 | 41 | 63 | 0.8% |
| Q1 2026 | 152 | $441.7M | 46,490,213 | 28 | 53 | 52 | 2.1% |
| Q4 2025 | 160 | $609.9M | 46,883,289 | 27 | 69 | 47 | 0.5% |
| Q3 2025 | 148 | $552.5M | 48,571,307 | 23 | 60 | 44 | 0.5% |
| Q2 2025 | 141 | $516.1M | 47,232,872 | 25 | 62 | 40 | 0.3% |
| Q1 2025 | 135 | $433.9M | 46,703,897 | 20 | 54 | 36 | 1.0% |
| Q4 2024 | 148 | $531.1M | 46,892,690 | 25 | 56 | 43 | 0.6% |
| Q3 2024 | 142 | $872.7M | 48,121,212 | 28 | 56 | 36 | 0.4% |
| Q2 2024 | 137 | $654.9M | 49,358,951 | 48 | 55 | 24 | 0.8% |
| Q1 2024 | 111 | $881.6M | 43,185,971 | 34 | 31 | 27 | 0.2% |
| Q4 2023 | 84 | $469.5M | 42,098,829 | 9 | 31 | 25 | 0.0% |
| Q3 2023 | 82 | $338.6M | 40,969,947 | 8 | 13 | 47 | 0.0% |
| Q2 2023 | 85 | $459.1M | 44,520,627 | 12 | 40 | 22 | 0.0% |
| Q1 2023 | 80 | $579.0M | 38,651,091 | 13 | 24 | 25 | 0.0% |
| Q4 2022 | 78 | $381.4M | 38,326,917 | 17 | 27 | 20 | 0.0% |
| Q3 2022 | 86 | $358.0M | 40,907,900 | 11 | 40 | 22 | 0.0% |
| Q2 2022 | 86 | $393.0M | 39,895,851 | 11 | 32 | 27 | 0.0% |
| Q1 2022 | 94 | $677.3M | 40,929,402 | 17 | 29 | 29 | 0.0% |
| Q4 2021 | 90 | $616.6M | 39,939,573 | 19 | 26 | 30 | 0.0% |
| Q3 2021 | 86 | $708.8M | 37,916,268 | 15 | 33 | 22 | 0.0% |
| Q2 2021 | 98 | $1.6B | 37,796,854 | 23 | 41 | 23 | 0.0% |
| Q1 2021 | 96 | $1.3B | 36,467,226 | 37 | 43 | 13 | 0.0% |
| Q4 2020 | 65 | $1.3B | 32,348,576 | 62 | 0 | 0 | 0.0% |