MediaAlpha, Inc. - MAX

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q3 2026 · Compare: Q2 2026
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
WHITE MOUNTAINS INSURANCE GROUP LTD History No change 17,856,614 224,457 57.03% 57.03% 1 0 0.0% Q2 2026 Aug 12, 2026
BlackRock, Inc. History No change 3,392,357 42,641 0.0% 0.0% 2 0 0.0% Q2 2026 Aug 07, 2026
Clearline Capital LP History No change 2,713,890 34,113 2.04% 2.04% 3 0 0.0% Q2 2026 Aug 14, 2026
JPMORGAN CHASE & CO History No change 1,880,062 23,293 0.0% 0.0% 4 0 0.0% Q2 2026 Aug 12, 2026
VANGUARD CAPITAL MANAGEMENT LLC History No change 1,276,369 16,043 0.0% 0.0% 5 0 0.0% Q2 2026 Aug 13, 2026
GEODE CAPITAL MANAGEMENT, LLC History No change 1,068,308 13,430 0.0% 0.0% 6 0 0.0% Q2 2026 Aug 12, 2026
Divisadero Street Capital Management, LP History No change 1,019,988 12,821 0.29% 0.29% 7 0 0.0% Q2 2026 Aug 14, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC History No change 971,232 12,208 0.04% 0.04% 8 0 0.0% Q2 2026 Aug 14, 2026
ACADIAN ASSET MANAGEMENT LLC History No change 957,095 12,019 0.01% 0.01% 9 0 0.0% Q2 2026 Aug 13, 2026
JACOBS ASSET MANAGEMENT, LLC History No change 919,761 11,561 7.27% 7.27% 10 0 0.0% Q2 2026 Aug 14, 2026
STATE STREET CORP History No change 862,235 10,838 0.0% 0.0% 11 0 0.0% Q2 2026 Sep 22, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History No change 829,958 10,432 0.0% 0.0% 12 0 0.0% Q2 2026 Aug 13, 2026
MORGAN STANLEY History No change 821,170 10,322 0.0% 0.0% 13 0 0.0% Q2 2026 Aug 13, 2026
Nuveen, LLC History No change 752,447 9,458 0.0% 0.0% 14 0 0.0% Q2 2026 Aug 11, 2026
DIMENSIONAL FUND ADVISORS LP History No change 701,914 8,822 0.0% 0.0% 15 0 0.0% Q2 2026 Aug 11, 2026
J. Goldman & Co LP History No change 686,470 8,628 0.22% 0.22% 16 0 0.0% Q2 2026 Aug 14, 2026
CITADEL ADVISORS LLC History No change 672,996 8,459 0.0% 0.0% 17 0 0.0% Q2 2026 Sep 02, 2026
JANE STREET GROUP, LLC History No change 596,625 7,499 0.0% 0.0% 18 0 0.0% Q2 2026 Aug 14, 2026
RENAISSANCE TECHNOLOGIES LLC History No change 574,407 7,220 0.01% 0.01% 19 0 0.0% Q2 2026 Aug 13, 2026
Shay Capital LLC History No change 570,000 7,164 0.46% 0.46% 20 0 0.0% Q2 2026 Aug 14, 2026
D. E. Shaw & Co., Inc. History No change 535,926 6,736 0.0% 0.0% 21 0 0.0% Q2 2026 Aug 14, 2026
SPEECE THORSON CAPITAL GROUP INC History No change 489,098 6,148 1.31% 1.31% 22 0 0.0% Q2 2026 Aug 04, 2026
EVR Research LP History No change 440,000 5,530 2.73% 2.73% 23 0 0.0% Q2 2026 Aug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History No change 433,046 5,443 0.0% 0.0% 24 0 0.0% Q2 2026 Aug 13, 2026
GOLDMAN SACHS GROUP INC History No change 428,866 5,390 0.0% 0.0% 25 0 0.0% Q2 2026 Aug 14, 2026
TWO SIGMA INVESTMENTS, LP History No change 409,480 5,147 0.0% 0.0% 26 0 0.0% Q2 2026 Aug 14, 2026
AQR CAPITAL MANAGEMENT LLC History No change 391,641 4,922 0.0% 0.0% 27 0 0.0% Q2 2026 Aug 14, 2026
HRT FINANCIAL LP History No change 372,929 4,687 0.01% 0.01% 28 0 0.0% Q2 2026 Aug 14, 2026
BANK OF AMERICA CORP /DE/ History No change 371,840 4,674 0.0% 0.0% 29 0 0.0% Q2 2026 Aug 14, 2026
Triad Investment Management History No change 368,731 4,634 5.11% 5.11% 30 0 0.0% Q2 2026 Jul 21, 2026
Stoic Point Capital Management LLC History No change 297,150 3,735 3.1% 3.1% 31 0 0.0% Q2 2026 Aug 14, 2026
NORTHERN TRUST CORP History No change 267,107 3,357 0.0% 0.0% 32 0 0.0% Q2 2026 Aug 13, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History No change 259,224 3,258 0.0% 0.0% 33 0 0.0% Q2 2026 Aug 14, 2026
Squarepoint Ops LLC History No change 234,255 2,944 0.0% 0.0% 34 0 0.0% Q2 2026 Aug 14, 2026
VANGUARD FIDUCIARY TRUST CO History No change 223,917 2,814 0.0% 0.0% 35 0 0.0% Q2 2026 Aug 13, 2026
TEACHER RETIREMENT SYSTEM OF TEXAS History No change 216,405 2,720 0.01% 0.01% 36 0 0.0% Q2 2026 Aug 14, 2026
BNP PARIBAS FINANCIAL MARKETS History No change 209,204 2,629 0.0% 0.0% 37 0 0.0% Q2 2026 Aug 13, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History No change 180,171 2,264 0.0% 0.0% 38 0 0.0% Q2 2026 Aug 13, 2026
XTX Topco Ltd History No change 172,269 2,165 0.03% 0.03% 39 0 0.0% Q2 2026 Aug 14, 2026
ALGERT GLOBAL LLC History No change 170,870 2,147 0.03% 0.03% 40 0 0.0% Q2 2026 Aug 13, 2026
Man Group plc History No change 156,754 1,970 0.0% 0.0% 41 0 0.0% Q2 2026 Aug 14, 2026
ALLIANCEBERNSTEIN L.P. History No change 211,450 1,966 0.0% 0.0% 42 0 0.0% Q2 2026 Aug 14, 2026
PRINCIPAL FINANCIAL GROUP INC History No change 148,845 1,870 0.0% 0.0% 43 0 0.0% Q2 2026 Aug 04, 2026
Quantinno Capital Management LP History No change 136,034 1,709 0.0% 0.0% 44 0 0.0% Q2 2026 Aug 13, 2026
Russell Investments Group, Ltd. History No change 130,360 1,629 0.0% 0.0% 45 0 0.0% Q2 2026 Aug 06, 2026
STIFEL FINANCIAL CORP History No change 126,175 1,586 0.0% 0.0% 46 0 0.0% Q2 2026 Aug 12, 2026
VICTORY CAPITAL MANAGEMENT INC History No change 101,365 1,274 0.0% 0.0% 47 0 0.0% Q2 2026 Aug 07, 2026
BALYASNY ASSET MANAGEMENT L.P. History No change 101,046 1,270 0.0% 0.0% 48 0 0.0% Q2 2026 Aug 14, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History No change 96,847 1,217 0.0% 0.0% 49 0 0.0% Q2 2026 Aug 14, 2026
Qube Research & Technologies Ltd History No change 92,453 1,162 0.0% 0.0% 50 0 0.0% Q2 2026 Aug 14, 2026
PDT Partners, LLC History No change 84,022 1,056 0.06% 0.06% 51 0 0.0% Q2 2026 Aug 14, 2026
Bank of New York Mellon Corp History No change 81,504 1,024 0.0% 0.0% 52 0 0.0% Q2 2026 Aug 06, 2026
Walleye Capital LLC History No change 80,306 1,009 0.0% 0.0% 53 0 0.0% Q2 2026 Aug 03, 2026
FRANKLIN RESOURCES INC History No change 74,587 937 0.0% 0.0% 54 0 0.0% Q2 2026 Aug 13, 2026
STATE OF WISCONSIN INVESTMENT BOARD History No change 70,309 883 0.0% 0.0% 55 0 0.0% Q2 2026 Aug 14, 2026
Amundi History No change 70,311 883 0.0% 0.0% 56 0 0.0% Q2 2026 Aug 11, 2026
Allianz Asset Management GmbH History No change 70,176 882 0.0% 0.0% 57 0 0.0% Q2 2026 Sep 02, 2026
WINMILL & CO. INC History No change 65,102 818 0.18% 0.18% 58 0 0.0% Q2 2026 Aug 13, 2026
PEAK6 LLC History No change 62,600 786 0.0% 0.0% 59 0 0.0% Q2 2026 Aug 12, 2026
Swiss National Bank History No change 60,800 764 0.0% 0.0% 60 0 0.0% Q2 2026 Aug 11, 2026
BLAIR WILLIAM & CO/IL History No change 56,046 704 0.0% 0.0% 61 0 0.0% Q2 2026 Aug 11, 2026
GLOBEFLEX CAPITAL L P History No change 55,850 702 0.09% 0.09% 62 0 0.0% Q2 2026 Aug 12, 2026
Campbell & CO Investment Adviser LLC History No change 46,617 585 0.03% 0.03% 63 0 0.0% Q2 2026 Aug 03, 2026
RHUMBLINE ADVISERS History No change 45,932 577 0.0% 0.0% 64 0 0.0% Q2 2026 Aug 11, 2026
Hillsdale Investment Management Inc. History No change 45,900 576 0.01% 0.01% 65 0 0.0% Q2 2026 Aug 12, 2026
Allspring Global Investments Holdings, LLC History No change 44,831 563 0.0% 0.0% 66 0 0.0% Q2 2026 Aug 13, 2026
SEI INVESTMENTS CO History No change 44,637 561 0.0% 0.0% 67 0 0.0% Q2 2026 Aug 14, 2026
Mariner, LLC History No change 41,127 516 0.0% 0.0% 68 0 0.0% Q2 2026 Aug 13, 2026
Caption Management, LLC History No change 37,515 471 0.0% 0.0% 69 0 0.0% Q2 2026 Aug 14, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 37,076 467 0.0% 0.0% 70 0 0.0% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History No change 37,065 465 0.0% 0.0% 71 0 0.0% Q2 2026 Aug 14, 2026
DEUTSCHE BANK AG\ History No change 34,254 430 0.0% 0.0% 72 0 0.0% Q2 2026 Aug 07, 2026
Lighthouse Investment Partners, LLC History No change 34,001 427 0.01% 0.01% 73 0 0.0% Q2 2026 Aug 14, 2026
UBS Group AG History No change 33,602 422 0.0% 0.0% 74 0 0.0% Q2 2026 Aug 13, 2026
BARCLAYS PLC History No change 30,349 381 0.0% 0.0% 75 0 0.0% Q2 2026 Aug 14, 2026
WELLS FARGO & COMPANY/MN History No change 28,163 354 0.0% 0.0% 76 0 0.0% Q2 2026 Aug 14, 2026
Legal & General Group Plc History No change 27,533 346 0.0% 0.0% 77 0 0.0% Q2 2026 Aug 14, 2026
Brevan Howard Capital Management LP History No change 27,117 340 0.0% 0.0% 78 0 0.0% Q2 2026 Aug 14, 2026
Dynamic Technology Lab Private Ltd History No change 26,868 338 0.08% 0.08% 79 0 0.0% Q2 2026 Aug 13, 2026
FMR LLC History No change 26,386 331 0.0% 0.0% 80 0 0.0% Q2 2026 Aug 13, 2026
Invesco Ltd. History No change 26,039 327 0.0% 0.0% 81 0 0.0% Q2 2026 Aug 14, 2026
State of Alaska, Department of Revenue History No change 25,862 324 0.0% 0.0% 82 0 0.0% Q2 2026 Jul 20, 2026
TUDOR INVESTMENT CORP ET AL History No change 25,748 323 0.0% 0.0% 83 0 0.0% Q2 2026 Aug 14, 2026
ALLSTATE CORP History No change 25,287 317 0.0% 0.0% 84 0 0.0% Q2 2026 Aug 13, 2026
AXQ CAPITAL, LP History No change 25,117 315 0.03% 0.03% 85 0 0.0% Q2 2026 Aug 06, 2026
Abel Hall, LLC History No change 24,473 307 0.05% 0.05% 86 0 0.0% Q2 2026 Jul 24, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History No change 24,141 303 0.0% 0.0% 87 0 0.0% Q2 2026 Aug 24, 2026
CITIGROUP INC History No change 24,003 301 0.0% 0.0% 88 0 0.0% Q2 2026 Aug 03, 2026
Corient Private Wealth LP History No change 23,451 294 0.0% 0.0% 89 0 0.0% Q2 2026 Aug 27, 2026
Quantbot Technologies LP History No change 21,568 271 0.01% 0.01% 90 0 0.0% Q2 2026 Aug 12, 2026
MetLife Investment Management, LLC History No change 21,402 269 0.0% 0.0% 91 0 0.0% Q2 2026 Aug 13, 2026
JUPITER ASSET MANAGEMENT LTD History No change 21,172 266 0.0% 0.0% 92 0 0.0% Q2 2026 Aug 10, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History No change 18,642 234 0.0% 0.0% 93 0 0.0% Q2 2026 Aug 11, 2026
VANGUARD ASSET MANAGEMENT, Ltd History No change 17,425 219 0.0% 0.0% 94 0 0.0% Q2 2026 Aug 13, 2026
Graham Capital Management, L.P. History No change 17,179 215 0.0% 0.0% 95 0 0.0% Q2 2026 Aug 14, 2026
MERCER GLOBAL ADVISORS INC /ADV History No change 16,595 208 0.0% 0.0% 96 0 0.0% Q2 2026 Aug 19, 2026
Creative Planning History No change 16,220 203 0.0% 0.0% 97 0 0.0% Q2 2026 Aug 13, 2026
NOMURA HOLDINGS INC History No change 16,058 201 0.0% 0.0% 98 0 0.0% Q2 2026 Aug 14, 2026
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC History No change 14,811 198 0.0% 0.0% 99 0 0.0% Q2 2026 Jul 15, 2026
IEQ CAPITAL, LLC History No change 15,367 193 0.0% 0.0% 100 0 0.0% Q2 2026 Aug 11, 2026
EP Wealth Advisors, LLC History No change 15,273 191 0.0% 0.0% 101 0 0.0% Q2 2026 Aug 11, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History No change 14,208 178 0.0% 0.0% 102 0 0.0% Q2 2026 Aug 14, 2026
Jupiter Topco LLC History No change 13,862 174 0.0% 0.0% 103 0 0.0% Q2 2026 Aug 14, 2026
Cerity Partners LLC History No change 13,617 171 0.0% 0.0% 104 0 0.0% Q2 2026 Aug 14, 2026
LPL Financial LLC History No change 13,300 167 0.0% 0.0% 105 0 0.0% Q2 2026 Aug 07, 2026
Vanguard Global Advisers, LLC History No change 12,254 154 0.0% 0.0% 106 0 0.0% Q2 2026 Aug 13, 2026
GLENMEDE TRUST CO NA History No change 12,218 153 0.0% 0.0% 107 0 0.0% Q2 2026 Aug 10, 2026
MACKENZIE FINANCIAL CORP History No change 12,137 152 0.0% 0.0% 108 0 0.0% Q2 2026 Aug 13, 2026
FOX RUN MANAGEMENT, L.L.C. History No change 11,327 142 0.02% 0.02% 109 0 0.0% Q2 2026 Aug 04, 2026
PRUDENTIAL FINANCIAL INC History No change 11,145 140 0.0% 0.0% 110 0 0.0% Q2 2026 Aug 12, 2026
Cresset Asset Management, LLC History No change 11,123 139 0.0% 0.0% 111 0 0.0% Q2 2026 Aug 14, 2026
Arax Advisory Partners History No change 10,534 132 0.0% 0.0% 112 0 0.0% Q2 2026 Aug 10, 2026
BANK OF MONTREAL /CAN/ History No change 10,494 131 0.0% 0.0% 113 0 0.0% Q2 2026 Aug 12, 2026
Police & Firemen's Retirement System of New Jersey History No change 9,690 121 0.0% 0.0% 114 0 0.0% Q2 2026 Jul 23, 2026
Vanguard Investments Australia, Ltd. History No change 7,013 88 0.0% 0.0% 115 0 0.0% Q2 2026 Aug 13, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 6,264 78 0.0% 0.0% 116 0 0.0% Q2 2026 Jul 29, 2026
KLP KAPITALFORVALTNING AS History No change 5,933 74 0.0% 0.0% 117 0 0.0% Q2 2026 Aug 12, 2026
Covestor Ltd History No change 4,777 60 0.03% 0.03% 118 0 0.0% Q2 2026 Aug 07, 2026
ELKHORN PARTNERS LIMITED PARTNERSHIP History No change 4,500 56 0.05% 0.05% 119 0 0.0% Q2 2026 Aug 13, 2026
NEW YORK STATE TEACHERS RETIREMENT SYSTEM History No change 3,128 39 0.0% 0.0% 120 0 0.0% Q2 2026 Jul 23, 2026
Ameritas Investment Partners, Inc. History No change 3,026 38 0.0% 0.0% 121 0 0.0% Q2 2026 Aug 13, 2026
Tower Research Capital LLC (TRC) History No change 2,886 36 0.0% 0.0% 122 0 0.0% Q2 2026 Aug 11, 2026
ROYAL BANK OF CANADA History No change 1,728 22 0.0% 0.0% 123 0 0.0% Q2 2026 Aug 14, 2026
Caitong International Asset Management Co., Ltd History No change 1,219 15 0.0% 0.0% 124 0 0.0% Q2 2026 Aug 04, 2026
OSAIC HOLDINGS, INC. History No change 1,037 13 0.0% 0.0% 125 0 0.0% Q2 2026 Aug 14, 2026
EverSource Wealth Advisors, LLC History No change 810 10 0.0% 0.0% 126 0 0.0% Q2 2026 Jul 24, 2026
Versant Capital Management, Inc History Added to 961 9 0.0% 0.0% 127 +132 15.92% Q3 2026 Oct 01, 2026
Rockefeller Capital Management L.P. History No change 684 8 0.0% 0.0% 128 0 0.0% Q2 2026 Aug 13, 2026
Allworth Financial LP History No change 605 7 0.0% 0.0% 129 0 0.0% Q2 2026 Aug 11, 2026
Farther Finance Advisors, LLC History No change 504 6 0.0% 0.0% 130 0 0.0% Q2 2026 Jul 17, 2026
GAMMA Investing LLC History No change 496 6 0.0% 0.0% 131 0 0.0% Q2 2026 Jul 07, 2026
Murphy & Mullick Capital Management Corp History No change 500 6 0.0% 0.0% 132 0 0.0% Q2 2026 Aug 14, 2026
FEDERATED HERMES, INC. History No change 464 5 0.0% 0.0% 133 0 0.0% Q2 2026 Aug 12, 2026
HUNTINGTON NATIONAL BANK History No change 390 4 0.0% 0.0% 134 0 0.0% Q2 2026 Aug 13, 2026
RAFFA WEALTH MANAGEMENT, LLC History No change 290 3 0.0% 0.0% 135 0 0.0% Q2 2026 Jul 27, 2026
Essential Partners LLC History No change 275 3 0.0% 0.0% 136 0 0.0% Q2 2026 Aug 10, 2026
GROUP ONE TRADING LLC History No change 185 2 0.0% 0.0% 137 0 0.0% Q2 2026 Aug 13, 2026
PICTON MAHONEY ASSET MANAGEMENT History No change 192 2 0.0% 0.0% 138 0 0.0% Q2 2026 Aug 13, 2026
Quarry LP History No change 165 2 0.0% 0.0% 139 0 0.0% Q2 2026 Aug 14, 2026
ROTHSCHILD INVESTMENT LLC History No change 142 1 0.0% 0.0% 140 0 0.0% Q2 2026 Aug 06, 2026
NISA INVESTMENT ADVISORS, LLC History No change 135 1 0.0% 0.0% 141 0 0.0% Q2 2026 Aug 10, 2026
Sterling Capital Management LLC History No change 105 1 0.0% 0.0% 142 0 0.0% Q2 2026 Jul 28, 2026
Marquette Asset Management, LLC History No change 139 1 0.0% 0.0% 143 0 0.0% Q2 2026 Jul 09, 2026
Optiver Holding B.V. History No change 126 1 0.0% 0.0% 144 0 0.0% Q2 2026 Aug 12, 2026
Fortitude Family Office, LLC History No change 101 1 0.0% 0.0% 145 0 0.0% Q2 2026 Jul 20, 2026
True Wealth Design, LLC History No change 80 1 0.0% 0.0% 146 0 0.0% Q2 2026 Jul 16, 2026
Buck Wealth Strategies, LLC History No change 153 1 0.0% 0.0% 147 0 0.0% Q2 2026 Jul 30, 2026
US BANCORP \DE\ History No change 39 0 — — — 0 0.0% Q2 2026 Aug 12, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 64 0 — — — 0 0.0% Q2 2026 Aug 07, 2026
MassMutual Private Wealth & Trust, FSB History No change 25 0 — — — 0 0.0% Q2 2026 Jul 02, 2026
IFP Advisors, Inc History No change 2 0 — — — 0 0.0% Q2 2026 Jul 20, 2026
Parallel Advisors, LLC History No change 68 0 — — — 0 0.0% Q2 2026 Aug 05, 2026
SJS Investment Consulting Inc. History No change 13 0 — — — 0 0.0% Q2 2026 Jul 22, 2026
Smartleaf Asset Management LLC History No change 44 0 — — — 0 0.0% Q2 2026 Aug 12, 2026