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Disclosery

MAX MEDIAALPHA INC

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CL A (common), issuer CIK 1818383

160 managers (163 13F filers) reported a position in MAX shares at 2024-12-31, 48,035,919 shares in all. 27 filers opened a position and 24 filers sold out during the quarter.

Managers
160
13F filers
163
New
27
Added
66
Reduced
47
Sold out
24
Shares held by filers
48,035,919

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Yi Stevendirector, officer (See Remarks)2026-10-09-2,033 S$11.0068Form 4
Yi Stevendirector, officer (See Remarks)2026-10-08-24,000 S$10.0393Form 4

13F holders, Q4 2024

Filers in the available 13F reports with a share position at 2024-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
WHITE MOUNTAINS INSURANCE GROUP LTD17,856,614$202M47.31%013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC3,623,344$40.9M<0.01%+169,65413F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.3,557,049$40.2M<0.01%-211,26713F-HRTimelineGroup
Broad Bay Capital Management, LP2,218,685$25M4.05%-248,78113F-HRTimeline
TimesSquare Capital Management, LLC1,628,815$18.4M0.27%+712,41013F-HRTimeline
Clearline Capital LP1,188,161$13.4M1.78%-53,25813F-HRTimeline
Driehaus Capital Management LLC960,757$10.8M0.09%-1,286,63813F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC804,930$9.09M<0.01%+249,39313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC781,349$8.82M0.01%+372,30513F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …762,575$8.61M0.01%-107,21113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC698,703$7.89M<0.01%+8,12913F-HRTimelineGroup
Qube Research & Technologies Ltd670,153$7.57M0.01%-9,59613F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY611,061$6.9M<0.01%-111,65213F-HR/ATimelineGroup
STATE STREET CORPin group STATE STREET CORP605,986$6.84M<0.01%+58,08013F-HRTimelineGroup
Nuveen Asset Management, LLCin group TIAA587,627$6.63M<0.01%-551,63713F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC539,300$6.09M0.01%+252,00013F-HRTimeline
UBS Group AGgroup of 2 filers holding505,604$5.71M+413,070Timeline
JACOBS LEVY EQUITY MANAGEMENT, INC476,342$5.38M0.02%+459,22713F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC472,215$5.33M0.01%+401,80713F-HRTimelineGroup
CenterBook Partners LP471,864$5.33M0.32%+391,29813F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC456,550$5.15M0.01%+16,87513F-HRTimelineGroup
Shay Capital LLC447,500$5.05M1.24%+250,50013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC444,753$5.01M0.01%+356,05813F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP387,701$4.38M0.01%+209,87513F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.378,211$4.27M<0.01%-102,36013F-HRTimelineGroup
JACOBS ASSET MANAGEMENT, LLC356,900$4.03M2.58%+18,12513F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding342,598$3.87M-40,830Timeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co324,497$3.66M<0.01%+50,55313F-HRTimelineGroup
J. Goldman & Co LP311,125$3.51M0.12%-155,30213F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP282,172$3.19M<0.01%+26,95513F-HRTimelineGroup
NORGES BANK281,900$3.18M<0.01%new13F-HRTimeline
EARNEST PARTNERS LLC241,559$2.73M0.01%+1,02113F-HRTimeline
Hillsdale Investment Management Inc.208,900$2.36M0.12%+80013F-HRTimeline
ExodusPoint Capital Management, LP166,912$1.88M0.02%+145,27113F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE166,435$1.88M<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC155,458$1.76M<0.01%-41,20713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC155,034$1.75M<0.01%-26,89413F-HRTimelineGroup
Trexquant Investment LP139,578$1.58M0.02%-42,26113F-HRTimeline
ALGERT GLOBAL LLC136,509$1.54M0.04%+11,23813F-HR/ATimeline
Cubist Systematic Strategies, LLC129,872$1.47M0.02%-122,38013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC126,045$1.42M0.01%+70,86213F-HRTimeline
Nantahala Capital Management, LLCin group Nantahala Capital Management,…123,564$1.4M0.1%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO122,386$1.38M<0.01%+42,31513F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO115,181$1.3M<0.01%+74,11313F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\100,071$1.13M<0.01%-318,52513F-HR/ATimelineGroup
Jackson Creek Investment Advisors LLC93,844$1.06M0.32%-2,91313F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp89,949$1.02M<0.01%+13,35613F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC85,564$966K<0.01%+49,19213F-HRTimeline
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…85,081$961K0.04%-266,58313F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP80,817$902K<0.01%new13F-HRTimeline
SEGALL BRYANT & HAMILL, LLC73,172$826K0.01%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC72,500$819K0.02%+18,47913F-HRTimelineGroup
HRT FINANCIAL LP69,779$787K<0.01%new13F-HRTimeline
Connor, Clark & Lunn Investment Managem…67,832$766K<0.01%+26,77113F-HRTimeline
Graham Capital Management, L.P.64,251$725K0.02%+32,58413F-HRTimeline
Swiss National Bank64,100$724K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC62,463$705K<0.01%-4,06213F-HR/ATimelineGroup
Mariner, LLCin group Mariner, LLC60,433$682K<0.01%+3,98913F-HRTimelineGroup
MACKENZIE FINANCIAL CORP60,259$680K<0.01%+46,99613F-HR/ATimeline
FRANKLIN RESOURCES INCin group Franklin Resources59,724$674K<0.01%-68,88013F-HRTimelineGroup
Verition Fund Management LLC57,396$648K<0.01%+43,14213F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC55,309$624K<0.01%+17,07213F-HRTimelineGroup
BLAIR WILLIAM & CO/IL53,066$599K<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/51,589$582K<0.01%-177,46713F-HRTimelineGroup
Engineers Gate Manager LP51,187$578K0.01%+29,32513F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…49,625$557K<0.01%+40,05113F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.46,797$528K0.1%+16,40413F-HRTimeline
Cannell & Spears LLC45,700$516K0.01%-20,12513F-HRTimeline
Dynamic Technology Lab Private Ltd45,654$515K0.08%+31,20613F-HRTimeline
Severin Investments, LLC45,493$514K0.51%13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd44,483$502K0.04%+21,90213F-HRTimelineGroup
RHUMBLINE ADVISERS43,431$490K<0.01%+1,78213F-HR/ATimeline
SHERBROOKE PARK ADVISERS LLC42,843$484K0.15%+6,39813F-HRTimeline
Alpha DNA Investment Management LLC41,543$469K0.26%+16,99913F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC41,425$467K<0.01%-2,72813F-HRTimelineGroup
Nebula Research & Development LLC40,109$453K0.05%-1,10313F-HRTimeline
Corton Capital Inc.38,487$435K0.25%+3,01213F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS37,539$424K<0.01%-159,68913F-HRTimeline
Quantbot Technologies LP37,247$421K0.02%+11,15113F-HRTimeline
WESTFIELD CAPITAL MANAGEMENT CO LP33,800$382K<0.01%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD33,483$378K<0.01%-18,85113F-HRTimeline
GSA CAPITAL PARTNERS LLP31,810$359K0.03%-12,60813F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…31,253$353K<0.01%-29,41713F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…30,346$343K<0.01%-25213F-HR/ATimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS28,630$323K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.28,330$320K<0.01%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc28,174$318K<0.01%+1,29413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC28,173$318K<0.01%+5,91513F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP27,872$315K0.05%new13F-HRTimeline
STONERIDGE INVESTMENT PARTNERS LLC27,547$311K0.11%new13F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …27,427$310K<0.01%+30813F-HRTimelineGroup
Schonfeld Strategic Advisors LLC27,300$308K<0.01%+10,40013F-HRTimeline
Integrated Quantitative Investments LLC27,298$308K0.15%13F-HRTimeline
Centiva Capital, LP25,658$290K0.01%-3,86813F-HRTimeline
PharVision Advisers, LLC24,736$279K0.24%13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\23,547$266K<0.01%+6,18413F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…21,402$242K<0.01%+3,95613F-HRTimelineGroup
Robeco Institutional Asset Management B…in group Robeco Institutional Asset Ma…21,140$239K<0.01%+8,93813F-HRTimelineGroup
ZACKS INVESTMENT MANAGEMENT20,776$235K<0.01%+1113F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/20,236$229K<0.01%+2,49213F-HRTimeline
OmniStar Financial Group, Inc.18,989$214K0.17%-9,89013F-HRTimeline
Virtus Investment Advisers, LLCgroup of 2 filers holding18,284$206KnewTimeline
Man Group plcin group Man Group plc18,165$205K<0.01%+4,18713F-HRTimelineGroup
Petrus Trust Company, LTA17,171$194K0.02%-7,40813F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…17,091$193K<0.01%+76013F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD16,900$191K<0.01%new13F-HRTimeline
SG Americas Securities, LLC16,425$185K<0.01%-5,46213F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…15,967$180K<0.01%new13F-HRTimelineGroup
INDEPENDENT FINANCIAL GROUP, LLC15,261$172K0.01%new13F-HRTimeline
IEQ CAPITAL, LLC14,996$169K<0.01%new13F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.14,850$168K<0.01%-1,12113F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…14,462$163K<0.01%+9,16913F-HRTimelineGroup
GROUP ONE TRADING LLC14,447$163K0.01%new13F-HR/ATimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN14,409$163K<0.01%+4,26413F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson13,862$157K<0.01%013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC12,449$141K<0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…11,928$135K<0.01%+3,30413F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC11,648$132K<0.01%new13F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC11,447$129K0.01%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …11,206$127K<0.01%-16213F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd10,583$119K0.01%-28,45213F-HRTimeline
LPL Financial LLC10,122$114K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND9,864$111K<0.01%013F-HR/ATimeline
Police & Firemen's Retirement System of…6,822$77K<0.01%13F-HRTimeline
CWM, LLCin group CWM, LLC6,561$74K<0.01%+5,85813F-HRTimelineGroup
KLP KAPITALFORVALTNING AS5,933$67K<0.01%13F-HRTimeline
Quarry LP5,841$65.9K0.01%+3,02113F-HRTimeline
State of Wyoming4,506$50.9K0.01%-2,92213F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,026$34.2K<0.01%013F-HRTimelineGroup
Covestor Ltd2,766$31K0.02%+84713F-HRTimeline
AlphaQuest LLC2,356$26.6K<0.01%-3,68813F-HRTimeline
Point72 (DIFC) Ltd2,122$24K<0.01%+1,48213F-HRTimeline
SIMPLEX TRADING, LLC1,737$19K<0.01%-40,02313F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA1,163$13K<0.01%-2,77213F-HRTimelineGroup
FMR LLCin group FMR LLC1,035$11.7K<0.01%-32613F-HRTimelineGroup
AMALGAMATED BANK738$8K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP500$5.64K<0.01%+10013F-HRTimelineGroup
Murphy & Mullick Capital Management Corp500$5.64K0.01%13F-HRTimeline
Federation des caisses Desjardins du Qu…470$5.31K<0.01%new13F-HRTimeline
GPS Wealth Strategies Group, LLC300$3.39K<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC169$1.91K<0.01%-3913F-HRTimeline
TUCKER ASSET MANAGEMENT LLC166$1.87K<0.01%-5413F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.100$1.13K<0.01%-63513F-HR/ATimelineGroup
Arax Advisory Partners99$1.12K<0.01%013F-HRTimeline
True Wealth Design, LLC76$859<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.66$745<0.01%13F-HRTimeline
Caitong International Asset Management …66$745<0.01%13F-HR/ATimeline
Lindbrook Capital, LLC46$519<0.01%+1813F-HRTimeline
Smartleaf Asset Management LLC44$491<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…40$452<0.01%013F-HRTimelineGroup
Versant Capital Management, Inc34$384<0.01%013F-HRTimeline
GAMMA Investing LLC33$373<0.01%-8213F-HRTimeline
Sterling Capital Management LLC31$350<0.01%-38,36313F-HRTimeline
IFP Advisors, Inc26$294<0.01%new13F-HRTimeline
Parallel Advisors, LLC17$192<0.01%new13F-HRTimeline
NISA INVESTMENT ADVISORS, LLC15$169<0.01%-2613F-HRTimeline
Aquatic Capital Management LLC9$102<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…8$90<0.01%new13F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD7,798$88new13F-HRTimelineGroupValue about 1/1,000 of the price other filers imply, kept as filed and left out of ratios.

Events

  • Yi Steven sold 26,033 MAX shares between 2026-10-08 and 2026-10-09, Form 4 filed 2026-10-09. 0001818383-26-000249

    Accepted , ingested