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Disclosery

MEC MAYVILLE ENGR CO INC

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COMMON STOCK (common), issuer CIK 1766368

116 managers (116 13F filers) reported a position in MEC shares at 2024-12-31, 12,463,515 shares in all. 16 filers opened a position and 22 filers sold out during the quarter.

Managers
116
13F filers
116
New
16
Added
46
Reduced
26
Sold out
22
Shares held by filers
12,463,515

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

No Form 4 transaction on this security in the data.

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
Allspring Global Investments Holdings, …in group Allspring Global Investments …2,439,596$37.9M0.06%-35,27513F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.848,757$13.3M<0.01%-48,85313F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP704,659$11.1M<0.01%+85,08613F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC633,752$9.96M<0.01%+62,22313F-HRTimelineGroup
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …629,714$9.9M0.16%013F-HRTimelineGroup
ROYCE & ASSOCIATES LP584,297$9.19M0.09%+23,74913F-HRTimeline
Granahan Investment Management, LLC578,967$9.1M0.38%+240,75213F-HRTimeline
Nokomis Capital, L.L.C.449,792$7.07M3.26%+328,22313F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…332,375$5.22M0.01%+32,50013F-HRTimelineGroup
Ancora Advisors LLCin group Ancora Advisors LLC307,789$4.84M0.11%+60,78613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC277,449$4.36M<0.01%-23013F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …252,396$3.97M<0.01%+80,90513F-HRTimelineGroup
JB CAPITAL PARTNERS LP250,512$3.94M0.75%+8,90613F-HRTimeline
STATE STREET CORPin group STATE STREET CORP249,969$3.93M<0.01%+18,44113F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC219,713$3.45M<0.01%+83,21313F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/216,926$3.41M<0.01%+2,46913F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…215,783$3.39M<0.01%+27,05413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC213,758$3.36M<0.01%+61,79913F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC205,081$3.22M0.07%-6,30413F-HRTimeline
BLAIR WILLIAM & CO/IL197,740$3.11M0.01%+39,27813F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC135,193$2.13M0.01%+13,13813F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.130,667$2.05M<0.01%-34,94813F-HR/ATimelineGroup
GLOBEFLEX CAPITAL L P116,468$1.83M0.16%-27,95813F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC112,700$1.77M<0.01%-14,19113F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC112,113$1.76M<0.01%+6,53013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP101,334$1.59M<0.01%+3,13413F-HRTimelineGroup
ANCHOR CAPITAL ADVISORS LLC100,805$1.58M0.05%+2,56713F-HRTimeline
Polar Asset Management Partners Inc.96,553$1.52M0.02%new13F-HR/ATimeline
Wealthspire Advisors, LLC95,415$1.5M0.01%013F-HRTimeline
Empowered Funds, LLC91,513$1.44M0.02%+4,49613F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.82,413$1.3M0.06%+3,29113F-HRTimeline
Expect Equity LLC74,744$1.17M1.23%13F-HRTimeline
UBS Group AGin group UBS Group AG73,803$1.16M<0.01%-82,46213F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC71,643$1.13M<0.01%+54,63213F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO48,570$764K<0.01%+2,35313F-HRTimelineGroup
Nuveen Asset Management, LLCin group TIAA47,030$739K<0.01%013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY44,866$705K<0.01%-12,58413F-HR/ATimelineGroup
MARTINGALE ASSET MANAGEMENT L P42,211$664K0.02%+5,87513F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC41,363$650K0.01%+94313F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp38,257$601K<0.01%-98213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC38,143$600K<0.01%+65713F-HR/ATimelineGroup
SHEETS SMITH WEALTH MANAGEMENT36,525$574K0.07%+1,13013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.36,000$566K<0.01%-182,87113F-HRTimelineGroup
Janney Montgomery Scott LLC34,663$545K<0.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co34,252$538K<0.01%013F-HRTimelineGroup
LPL Financial LLC34,046$535K<0.01%+12,58813F-HRTimeline
STRS OHIO33,500$527K<0.01%+13,10013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC30,344$477K<0.01%new13F-HRTimelineGroup
Perritt Capital Management Inc30,000$472K0.25%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC28,782$452K<0.01%+28813F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC27,146$427K<0.01%new13F-HRTimelineGroup
Yarbrough Capital, LLC26,866$422K0.02%013F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT25,305$398K0.01%+1,94513F-HRTimeline
PANAGORA ASSET MANAGEMENT INC24,704$388K<0.01%-29,59713F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN24,407$384K<0.01%-3,38613F-HRTimelineGroup
Avior Wealth Management, LLC22,919$360K0.01%013F-HRTimeline
Gradient Investments LLCin group Gradient Investments LLC22,444$353K0.01%-66013F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…22,002$346K<0.01%-19,12813F-HRTimeline
Riverwater Partners LLC21,577$339K0.17%-1,76013F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC20,864$327K<0.01%+9,89213F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP20,256$318K0.02%new13F-HRTimeline
RHUMBLINE ADVISERS19,185$302K<0.01%+61313F-HR/ATimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA19,107$301K<0.01%+61613F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC18,248$287K<0.01%+4,01313F-HRTimelineGroup
Sterling Capital Management LLC17,647$277K<0.01%+33813F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…17,599$277K<0.01%new13F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC17,121$269K<0.01%13F-HR/ATimelineGroup
Engineers Gate Manager LP16,229$255K<0.01%+5,17513F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources15,859$249K<0.01%013F-HRTimelineGroup
Mesirow Financial Investment Management…15,682$247K<0.01%+8913F-HRTimeline
HRT FINANCIAL LP15,623$245K<0.01%new13F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC14,529$228K<0.01%+1,41713F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD14,197$223K<0.01%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC13,751$215K<0.01%-33,32113F-HRTimelineGroup
CORNERCAP INVESTMENT COUNSEL INC13,170$207K0.07%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…12,470$196K<0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC12,431$195K<0.01%-5,40213F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…12,227$192K<0.01%-5213F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\12,122$191K<0.01%+5,89713F-HR/ATimelineGroup
Integrated Quantitative Investments LLC11,264$177K0.09%13F-HRTimeline
Net Worth Advisory Group10,804$170K0.05%-42213F-HRTimeline
DELTA CAPITAL MANAGEMENT LLC10,610$167K0.1%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC10,579$166K<0.01%+87813F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS8,672$136K<0.01%-21,01613F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.7,700$121K<0.01%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…7,290$115K<0.01%+30413F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…6,477$102K<0.01%013F-HRTimelineGroup
Corebridge Financial, Inc.in group Corebridge Financial, Inc.6,403$101K<0.01%-39813F-HRTimelineGroup
State of Wyoming6,229$97.9K0.01%-7,86313F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO6,150$96.7K<0.01%+46113F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND5,395$84.8K<0.01%013F-HR/ATimeline
FMR LLCin group FMR LLC3,145$49.4K<0.01%+1913F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\2,853$44.8K<0.01%013F-HRTimelineGroup
Aquatic Capital Management LLC2,773$43.6K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…2,557$40.2K<0.01%13F-HRTimeline
R Squared Ltd2,550$40.1K0.04%13F-HRTimeline
AlphaQuest LLC2,441$38.4K0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,480$23.3K<0.01%-6,32513F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,260$19.8K<0.01%013F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…1,161$18K<0.01%013F-HRTimeline
Avion Wealth1,000$15K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…922$14.5K<0.01%013F-HR/ATimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…912$14.3K<0.01%013F-HRTimelineGroup
GROUP ONE TRADING LLC400$6.29K<0.01%+26313F-HR/ATimeline
AMALGAMATED BANK372$6K<0.01%013F-HRTimeline
COMERICA BANK236$3.7K<0.01%+2313F-HR/ATimeline
Nemes Rush Group LLC200$3.14K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC88$1K<0.01%-13713F-HRTimelineGroup
GAMMA Investing LLC31$487<0.01%-6913F-HRTimeline
Vermillion Wealth Management, Inc.30$472<0.01%13F-HRTimeline
MAI Capital Management25$393<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…12$189<0.01%new13F-HRTimelineGroup
IFP Advisors, Inc0$63<0.01%new13F-HRTimelineAmount filed as zero, left out of ratios.
Covestor Ltd20$00%new13F-HRTimelineValue filed as zero, left out of ratios.
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 LTD2,846$45new13F-HRTimelineGroupValue about 1/1,000 of the price other filers imply, kept as filed and left out of ratios.