Mediaalpha Inc. Class AMAX
13F holders, Q3 2024 (September 30)151holders +2
29new positions
29sold out
7famous investors
$18.11avg. 13F price*
At the end of Q3 2024, 151 institutions reported holding Mediaalpha Inc. Class A (MAX) in their 13F filings, up 2 from Q2 2024. 29 opened new positions and 29 sold out. The largest holders were White Mountains Insurance Group Ltd. ($323.4M), BlackRock, Inc. ($68.2M) and Vanguard Group Inc. ($62.5M). 7 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Mediaalpha Inc. Class A
- CUSIP
- 58450V104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 29 | $22.7M |
| Exits | 29 | $92.4M |
All 13F filers, Q2 2024 → Q3 2024: 7,741,133 shares bought and 10,355,260 shares sold, net −2,614,127 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 151 holders
| White Mountains Insurance Group Ltd. | 59.53% | No change | 17,856,614 | $323.4M |
| BlackRock, Inc. | 0.00% | — | 3,768,316 | $68.2M |
| Vanguard Group Inc. | 0.00% | Add +12.1% | 3,453,690 | $62.5M |
| Broad Bay Capital Management, LP | 6.14% | Add +3.5% | 2,467,466 | $44.7M |
| Driehaus Capital Management LLC | 0.35% | Add +56.4% | 2,247,395 | $40.7M |
| Clearline Capital LP | 1.99% | Add +115.3% | 1,241,419 | $22.5M |
| Nuveen Asset Management, LLC | 0.01% | Add +1039.2% | 1,139,264 | $20.6M |
| TimesSquare Capital Management, LLC | 0.25% | Reduce -14.6% | 916,405 | $16.6M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +86.8% | 869,786 | $15.8M |
| Divisadero Street Capital Management, LP | 1.74% | Add +23.9% | 748,694 | $13.6M |
| Morgan Stanley | 0.00% | Reduce -3.6% | 722,713 | $13.1M |
| Geode Capital Management, LLC | 0.00% | Add +28.9% | 690,574 | $12.5M |
| Qube Research & Technologies Ltd | 0.02% | Add +19.4% | 679,749 | $12.3M |
| Goldman Sachs Group Inc. | 0.00% | Add +144.7% | 555,537 | $10.1M |
| Invesco Ltd. | 0.00% | New | 551,485 | $10.0M |
| State Street Corp. | 0.00% | Add +7.0% | 547,906 | $9.9M |
| D. E. Shaw & Co. | 0.01% | Add +8.1% | 480,571 | $8.7M |
| J. Goldman & Co LP | 0.37% | Add +370.1% | 466,427 | $8.4M |
| Silvercrest Asset Management Group LLC | 0.06% | Add +20.5% | 447,148 | $8.1M |
| Lazard Asset Management LLC | 0.01% | Add +2201.4% | 439,675 | $8.0M |
| Deutsche Bank AG | 0.00% | Add +22.9% | 418,596 | $7.6M |
| Millennium Management | 0.01% | Reduce -14.3% | 409,044 | $7.4M |
| Lighthouse Investment Partners, LLC | 0.34% | Add +15.7% | 351,664 | $6.4M |
| Jacobs Asset Management, LLC | 4.06% | Reduce -24.7% | 338,775 | $6.1M |
| Philadelphia Financial Management of San Francisco, LLC | 1.16% | Reduce -58.9% | 299,399 | $5.4M |
| Renaissance Technologies | 0.01% | Reduce -38.9% | 287,300 | $5.2M |
| Two Sigma Investments, LP | 0.01% | Reduce -0.2% | 275,228 | $5.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +35.4% | 273,944 | $5.0M |
| Northern Trust Corp. | 0.00% | Add +23.0% | 255,217 | $4.6M |
| Cubist Systematic Strategies, LLC | 0.07% | Add +2.7% | 252,252 | $4.6M |
| Earnest Partners LLC | 0.02% | No change | 240,538 | $4.4M |
| Bank of America Corp. | 0.00% | Add +145.8% | 229,056 | $4.1M |
| Hillsdale Investment Management Inc. | 0.29% | Add +1.1% | 208,100 | $3.8M |
| Teacher Retirement System of Texas | 0.02% | Add +196.4% | 197,228 | $3.6M |
| Shay Capital LLC | 1.05% | Reduce -49.5% | 197,000 | $3.6M |
| Squarepoint Ops LLC | 0.01% | Add +290.7% | 196,665 | $3.6M |
| Voloridge Investment Management, LLC | 0.01% | Reduce -65.3% | 185,165 | $3.4M |
| Citadel Advisors | 0.00% | Reduce -62.9% | 181,928 | $3.3M |
| Trexquant Investment LP | 0.04% | Add +97.8% | 181,839 | $3.3M |
| Marshall Wace, LLP | 0.00% | Reduce -50.2% | 177,826 | $3.2M |
| Franklin Resources Inc. | 0.00% | Add +100.1% | 128,604 | $2.4M |
| Algert Global LLC | 0.06% | Add +917.7% | 125,271 | $2.3M |
| Nantahala Capital Management, LLC | 0.19% | No change | 123,564 | $2.2M |
| Federated Hermes, Inc. | 0.00% | Add +0.1% | 121,674 | $2.2M |
| Two Sigma Advisers, LP | 0.00% | Add +37.8% | 108,200 | $2.0M |
| Balyasny Asset Management L.P. | 0.00% | Add +11.3% | 103,305 | $1.9M |
| Jackson Creek Investment Advisors LLC | 0.52% | New | 96,757 | $1.8M |
| Acadian Asset Management LLC | 0.01% | Reduce -53.7% | 88,695 | $1.6M |
| CenterBook Partners LP | 0.09% | Reduce -74.4% | 80,566 | $1.5M |
| JPMorgan Chase & Co. | 0.00% | Add +655.8% | 80,071 | $1.5M |
| Bank of New York Mellon Corp | 0.00% | Reduce -9.0% | 76,593 | $1.4M |
| Tudor Investment Corporation | 0.01% | Reduce -31.8% | 75,291 | $1.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +8.4% | 73,428 | $1.3M |
| AQR Capital Management | 0.00% | Add +350.2% | 70,408 | $1.3M |
| PDT Partners, LLC | 0.11% | New | 68,331 | $1.2M |
| Barclays PLC | 0.00% | Add +423.2% | 66,525 | $1.2M |
| Cannell & Spears LLC | 0.02% | Add +3.0% | 65,825 | $1.2M |
| Swiss National Bank | 0.00% | No change | 64,100 | $1.2M |
| Susquehanna International Group, LLP | 0.00% | Add +266.6% | 60,670 | $1.1M |
| Mariner, LLC | 0.00% | Reduce -45.7% | 56,444 | $1.0M |
| Los Angeles Capital Management LLC | 0.00% | Add +91.8% | 55,183 | $999K |
| Jump Financial, LLC | 0.02% | Reduce -50.8% | 54,021 | $978K |
| State of Wisconsin Investment Board | 0.00% | Add +75.9% | 52,334 | $948K |
| Deerfield Management Company, L.P. | 0.01% | Add +74.1% | 48,093 | $871K |
| Danske Bank A/S | 0.00% | New | 47,286 | $856K |
| Gsa Capital Partners LLP | 0.06% | New | 44,418 | $804K |
| HSBC Holdings PLC | 0.00% | Add +85.6% | 44,153 | $798K |
| Simplex Trading, LLC | 0.03% | Add +369.7% | 41,760 | $756K |
| Rhumbline Advisers | 0.00% | Add +13.3% | 41,649 | $754K |
| Nebula Research & Development LLC | 0.09% | New | 41,212 | $746K |
| Sei Investments Co. | 0.00% | Reduce -77.1% | 41,068 | $744K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 41,061 | $744K |
| Y-Intercept (Hong Kong) Ltd | 0.04% | New | 39,035 | $707K |
| Sterling Capital Management LLC | 0.01% | — | 38,394 | $695K |
| Jane Street Group, LLC | 0.00% | Reduce -62.0% | 38,237 | $692K |
| Sherbrooke Park Advisers LLC | 0.15% | Add +35.2% | 36,445 | $660K |
| Victory Capital Management Inc. | 0.00% | Add +0.4% | 36,372 | $659K |
| Corton Capital Inc. | 0.31% | Add +27.8% | 35,475 | $642K |
| Point72 Asset Management | 0.00% | Add +233.1% | 34,407 | $623K |
| Westfield Capital Management Co. LP | 0.00% | No change | 33,800 | $612K |
| Graham Capital Management, L.P. | 0.03% | New | 31,667 | $573K |
| Caption Management, LLC | 0.06% | New | 31,000 | $561K |
| California State Teachers Retirement System | 0.00% | Reduce -1.9% | 30,598 | $554K |
| Fox Run Management, L.L.C. | 0.12% | New | 30,393 | $550K |
| Centiva Capital, LP | 0.02% | New | 29,526 | $535K |
| OmniStar Financial Group, Inc. | 0.39% | New | 28,879 | $523K |
| Alliancebernstein L.P. | 0.00% | Reduce -12.6% | 28,330 | $513K |
| Allspring Global Investments Holdings, LLC | 0.00% | New | 27,119 | $491K |
| Legal & General Group Plc | 0.00% | Add +1.8% | 26,880 | $487K |
| Quantbot Technologies LP | 0.02% | Add +37.8% | 26,096 | $473K |
| EntryPoint Capital, LLC | 0.27% | Add +17.9% | 25,932 | $470K |
| Petrus Trust Company, LTA | 0.04% | Add +55.5% | 24,579 | $445K |
| Alpha DNA Investment Management LLC | 0.24% | Reduce -7.0% | 24,544 | $444K |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors | 0.07% | No change | 23,890 | $433K |
| XTX Topco Ltd | 0.03% | New | 22,581 | $409K |
| Citigroup Inc. | 0.00% | Add +302.9% | 22,258 | $403K |
| SG Americas Securities, LLC | 0.00% | New | 21,887 | $396K |
| Engineers Gate Manager LP | 0.01% | Reduce -28.1% | 21,862 | $396K |
| ExodusPoint Capital Management, LP | 0.00% | Reduce -74.0% | 21,641 | $392K |
| Zacks Investment Management | 0.00% | New | 20,765 | $376K |
| UBS Group AG | 0.00% | Reduce -60.6% | 19,106 | $346K |
| Prudential Financial Inc. | 0.00% | New | 18,985 | $344K |
| T. Rowe Price Associates Inc. | 0.00% | Add +12.5% | 17,744 | $322K |
| MetLife Investment Management, LLC | 0.00% | Add +28.9% | 17,446 | $316K |
| US Bancorp \de | 0.00% | Reduce -27.2% | 17,363 | $314K |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -64.8% | 17,115 | $310K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 16,900 | $306K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +43.4% | 16,331 | $296K |
| Corebridge Financial, Inc. | 0.00% | Add +19.5% | 15,971 | $289K |
| Dynamic Technology Lab Private Ltd | 0.03% | New | 14,448 | $262K |
| Verition Fund Management LLC | 0.00% | Reduce -89.9% | 14,254 | $258K |
| Man Group plc | 0.00% | Add +36.7% | 13,978 | $253K |
| Janus Henderson Group PLC | 0.00% | No change | 13,862 | $251K |
| Mackenzie Financial Corp. | 0.00% | New | 13,263 | $240K |
| Robeco Institutional Asset Management B.V. | 0.00% | New | 12,202 | $221K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +11.9% | 11,368 | $206K |
| Wells Fargo & Company | 0.00% | Reduce -97.1% | 10,145 | $184K |
| Aigen Investment Management, LP | 0.04% | Reduce -21.7% | 10,140 | $184K |
| New York State Common Retirement Fund | 0.00% | No change | 9,864 | $179K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -53.7% | 9,574 | $173K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 8,624 | $156K |
| State of Wyoming | 0.02% | Reduce -61.9% | 7,428 | $135K |
| nVerses Capital, LLC | 0.05% | New | 6,400 | $116K |
| AlphaQuest LLC | 0.01% | Reduce -72.8% | 6,044 | $109K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +115.9% | 5,293 | $96K |
| Royal Bank of Canada | 0.00% | Add +31.8% | 3,935 | $71K |
| Ameritas Investment Partners, Inc. | 0.00% | Add +29.3% | 3,026 | $55K |
| Quarry LP | 0.02% | Add +157.8% | 2,820 | $51K |
| Covestor Ltd | 0.02% | Reduce -5.7% | 1,919 | $35K |
| FMR LLC | 0.00% | Add +26.7% | 1,361 | $25K |
| Osaic Holdings, Inc. | 0.00% | Reduce -40.8% | 735 | $13K |
| Amalgamated Bank | 0.00% | No change | 738 | $13K |
| Cwm, LLC | 0.00% | Add +48.0% | 703 | $13K |
| Point72 (DIFC) Ltd | 0.00% | Reduce -87.1% | 640 | $12K |
| Aster Capital Management (DIFC) Ltd | 0.00% | — | 500 | $9K |
| Macroview Investment Management LLC | 0.01% | No change | 477 | $9K |
| Jones Financial Companies LLLP | 0.00% | New | 400 | $7K |
| GPS Wealth Strategies Group, LLC | 0.00% | No change | 300 | $5K |
| Tucker Asset Management LLC | 0.00% | No change | 220 | $4K |
| Quadrant Capital Group LLC | 0.00% | Reduce -19.4% | 208 | $4K |
| GAMMA Investing LLC | 0.00% | New | 115 | $2K |
| Arax Advisory Partners | 0.00% | No change | 99 | $2K |
| Smartleaf Asset Management LLC | 0.00% | No change | 44 | $800 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -24.1% | 41 | $743 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 40 | $724 |
| Versant Capital Management, Inc | 0.00% | No change | 34 | $616 |
| Continuum Advisory, LLC | 0.00% | New | 42 | $520 |
| Lindbrook Capital, LLC | 0.00% | New | 28 | $507 |
| Earned Wealth Advisors, LLC | 0.00% | New | 6 | $109 |
| Rothschild Investment LLC | 0.00% | Reduce -66.7% | 5 | $91 |
| National Bank of Canada | 0.00% | New | 1 | $18 |
"% of holder's portfolio" is MAX's weight in each manager's 13F, not the share of Mediaalpha Inc. Class A the manager owns.