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Disclosery

MTRN MATERION CORP

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COM (common), issuer CIK 1104657

295 managers (302 13F filers) reported a position in MTRN shares at 2025-09-30, 19,912,427 shares in all. 75 filers opened a position and 28 filers sold out during the quarter.

Managers
295
13F filers
302
New
75
Added
100
Reduced
89
Sold out
28
Shares held by filers
19,912,427

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
BlackRock, Inc.in group BlackRock, Inc.3,272,432$395M0.01%-55,32713F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding2,358,750$285M-27,104Timeline
Capital Research Global Investorsin group Capital Research Global Inves…1,911,665$231M0.04%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,337,260$162M0.01%+38,30413F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP1,002,952$121M0.03%-7,53813F-HRTimelineGroup
BARROW HANLEY MEWHINNEY & STRAUSS LLC604,350$73M0.23%-35,85113F-HRTimeline
ACK Asset Management LLC524,800$63.4M7.93%013F-HRTimeline
Trigran Investments, Inc.497,729$60.1M10.9%-301,01813F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC489,841$59.2M<0.01%+2,65513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY382,869$46.3M<0.01%+168,48413F-HR/ATimelineGroup
Copeland Capital Management, LLC372,848$45M0.94%-92,89813F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC365,212$44.1M0.02%+126,79413F-HRTimelineGroup
SEGALL BRYANT & HAMILL, LLC349,500$42.2M0.56%+78,34913F-HRTimeline
Harvey Partners, LLC318,000$38.4M3.49%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA307,679$37.2M0.01%-36,18713F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co303,950$36.7M0.01%+14,47713F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…286,913$34.7M0.06%+4,46913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP271,450$32.8M<0.01%-8,23713F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc228,353$27.1M0.04%+13,69013F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding199,650$24.1M+8,000Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO190,626$23M<0.01%+116,09113F-HR/ATimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP175,278$20.8M0.02%+11,00313F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC167,200$20.2M0.01%+109,01713F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp163,470$19.7M<0.01%+81713F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC153,356$18.5M0.41%+54,36413F-HRTimeline
Fisher Asset Management, LLC148,697$18M0.01%+21,52913F-HRTimeline
Nuveen, LLCin group TIAA116,876$14.1M<0.01%+53,98713F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding100,197$12.1M-3,119Timeline
ROYCE & ASSOCIATES LP97,500$11.8M0.12%new13F-HRTimeline
UBS Group AGgroup of 2 filers holding95,372$11.5M-4,459Timeline
Granahan Investment Management, LLC94,276$11.4M0.47%-26,72913F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/91,748$11.1M<0.01%+45,68913F-HR/ATimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC87,912$10.6M<0.01%+5,91713F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding86,887$10.5M-717Timeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC82,848$10M<0.01%+10,37913F-HRTimelineGroup
Public Sector Pension Investment Board80,880$9.77M0.04%+9,93113F-HRTimeline
HEARTLAND ADVISORS INC80,440$9.72M0.51%-10,40313F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC78,028$9.43M0.08%-27,36313F-HRTimeline
Invesco Ltd.in group Invesco Ltd.72,823$8.8M<0.01%+8,66813F-HRTimelineGroup
GENDELL JEFFREY Lin group GENDELL JEFFREY L71,296$8.61M0.16%+10,00013F-HRTimelineGroup
RHUMBLINE ADVISERS68,409$8.26M0.01%+17113F-HRTimeline
HighTower Advisors, LLC63,421$7.66M0.01%+2,22713F-HRTimeline
Ceredex Value Advisors LLC62,875$7.6M0.18%-29,47513F-HR/ATimeline
Phocas Financial Corp.62,477$7.55M0.98%+25,06313F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO60,368$7.29M0.01%+5,49013F-HRTimelineGroup
ProShare Advisors LLC59,125$7.14M0.01%-20,48813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc55,307$6.68M<0.01%-2,11113F-HRTimelineGroup
SailingStone Capital Partners LLC52,522$6.35M1.66%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN52,469$6.34M<0.01%+15,99313F-HRTimelineGroup
Lumbard & Kellner, LLC52,290$6.32M2.32%013F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…52,095$6.29M0.07%-3,27313F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC45,671$5.52M<0.01%+31,58213F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\45,122$5.45M<0.01%+31,55113F-HRTimelineGroup
Man Group plcin group Man Group plc42,755$5.17M0.01%+16,29113F-HRTimelineGroup
Swiss National Bank40,300$4.87M<0.01%+50013F-HRTimeline
KING LUTHER CAPITAL MANAGEMENT CORP37,963$4.59M0.02%+3,05013F-HRTimeline
Fiera Capital Corpin group Fiera Capital Corp36,468$4.41M0.01%-1,06813F-HRTimelineGroup
F/m Investments LLC36,301$4.39M0.17%+6,53813F-HRTimeline
Gilman Hill Asset Management, LLC34,903$4.22M0.66%+55013F-HRTimeline
ALGERT GLOBAL LLC34,870$4.21M0.07%new13F-HR/ATimeline
BARCLAYS PLCin group BARCLAYS PLC34,746$4.2M<0.01%-4,97713F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS34,640$4.18M<0.01%+16,19413F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC33,746$4.08M0.02%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC33,543$4.05M<0.01%-45,54413F-HRTimelineGroup
CHATHAM CAPITAL GROUP, INC.31,748$3.84M0.55%+2,20713F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC31,252$3.78M<0.01%+11,98913F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP30,950$3.74M<0.01%-3,84613F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC29,267$3.54M<0.01%+7,45013F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC25,646$3.1M0.01%+8,53513F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…24,500$2.96M0.01%new13F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 3 filers holding24,271$2.93M-18,602Timeline
NISA INVESTMENT ADVISORS, LLC23,357$2.82M0.01%+10013F-HRTimeline
ALLIANCEBERNSTEIN L.P.22,915$2.77M<0.01%+413F-HRTimeline
HWG Holdings LP22,342$2.7M0.68%new13F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…21,729$2.62M0.01%-84313F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P20,710$2.5M0.06%new13F-HRTimeline
ICON ADVISERS INC/CO19,800$2.39M0.52%+6,50013F-HR/ATimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…19,229$2.32M<0.01%+10,33513F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…19,169$2.32M<0.01%+1,28813F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co19,383$2.3M<0.01%+1,55113F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/18,517$2.24M<0.01%+1,07813F-HRTimeline
RICE HALL JAMES & ASSOCIATES, LLC17,672$2.13M0.12%-6,97813F-HRTimeline
Jackson Creek Investment Advisors LLC16,112$1.95M0.56%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND15,691$1.9M<0.01%+3,27413F-HRTimeline
Cubist Systematic Strategies, LLC15,191$1.84M0.03%-45,09013F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…14,953$1.81M<0.01%-35213F-HRTimelineGroup
Engineers Gate Manager LP14,192$1.71M0.02%-10,66913F-HRTimeline
Oliver Luxxe Assets LLC13,852$1.67M0.26%new13F-HRTimeline
PINNACLE ASSOCIATES LTD13,045$1.58M0.02%+9513F-HRTimeline
Trexquant Investment LP12,770$1.54M0.02%+2,42513F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…12,105$1.46M0.01%-27913F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC11,900$1.44M<0.01%-50013F-HRTimeline
SYNOVUS FINANCIAL CORP11,787$1.42M0.02%+1,43513F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC11,641$1.41M<0.01%-47,46213F-HRTimelineGroup
KINGSWOOD WEALTH ADVISORS, LLC11,568$1.4M0.08%-35013F-HRTimeline
Dakota Wealth Management11,555$1.4M0.03%+2513F-HR/ATimeline
State of Alaska, Department of Revenue11,230$1.36M0.01%-1,15213F-HRTimeline
Advisors Asset Management, Inc.10,918$1.32M0.02%+7,61513F-HR/ATimeline
NorthCrest Asset Manangement, LLC10,568$1.32M0.03%+3,05113F-HRTimeline
Illinois Municipal Retirement Fund10,897$1.32M0.02%+30013F-HRTimeline
State of Tennessee, Department of Treas…10,672$1.29M<0.01%+1,47213F-HRTimeline
OP Asset Management Ltd10,094$1.22M0.02%+3,50213F-HR/ATimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …9,911$1.2M<0.01%-70813F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP9,569$1.16M<0.01%-7,47713F-HRTimelineGroup
Louisiana State Employees Retirement Sy…9,500$1.15M0.02%-20013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC9,398$1.14M<0.01%-2,37413F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson8,930$1.08M<0.01%013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.8,811$1.06M<0.01%-39,15613F-HRTimelineGroup
WOLVERINE TRADING, LLC8,848$1.05M0.02%new13F-HRTimeline
COMERICA BANK8,637$1.04M<0.01%-1,22113F-HRTimeline
Ethic Inc.8,520$1.03M0.02%+2,48213F-HRTimeline
WESBANCO BANK INC8,200$991K0.03%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\7,987$965K<0.01%+6,59913F-HRTimelineGroup
MEYER HANDELMAN CO7,900$954K0.03%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC7,890$953K<0.01%-31313F-HRTimeline
CAXTON ASSOCIATES LLP7,595$918K0.03%new13F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP7,358$889K<0.01%new13F-HRTimelineGroup
Old West Investment Management, LLC6,962$841K0.19%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC6,560$793K<0.01%-12,68813F-HRTimelineGroup
Janney Montgomery Scott LLC6,549$791K<0.01%-1,39413F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC6,391$772K0.01%-1,32913F-HRTimeline
Cetera Investment Advisers6,185$747K<0.01%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM6,159$744K<0.01%+8513F-HRTimeline
K.J. Harrison & Partners Inc6,005$741K0.11%new13F-HRTimeline
IEQ CAPITAL, LLC6,018$727K<0.01%new13F-HRTimeline
AMALGAMATED BANK6,018$727K0.01%+8713F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…5,913$714K0.01%-15613F-HRTimeline
Verition Fund Management LLC5,855$707K<0.01%-3,36613F-HRTimeline
Caption Management, LLC5,800$701K0.04%new13F-HRTimeline
Creative Planningin group Creative Planning5,757$696K<0.01%+1,72513F-HRTimelineGroup
Police & Firemen's Retirement System of…5,730$692K0.01%+99913F-HRTimeline
Penn Capital Management Company, LLC5,531$668K0.05%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC5,514$666K<0.01%new13F-HRTimeline
HERITAGE INVESTORS MANAGEMENT CORP5,506$665K0.02%-22113F-HRTimeline
Cambridge Investment Research Advisors,…5,429$656K<0.01%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC5,294$640K<0.01%-79713F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…5,279$638K<0.01%-6513F-HRTimeline
Horizon Investments, LLC5,232$632K0.01%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC5,140$612K<0.01%+1,28913F-HRTimelineGroup
Handelsbanken Fonder AB5,066$612K<0.01%013F-HRTimeline
Snowden Capital Advisors LLC4,995$603K0.02%-54413F-HRTimeline
Ensign Peak Advisors, Inc4,898$592K<0.01%-6,05013F-HR/ATimeline
Holocene Advisors, LP4,885$590K<0.01%new13F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND4,697$567K0.01%-10013F-HRTimeline
FMR LLCin group FMR LLC4,599$556K<0.01%+7013F-HRTimelineGroup
iSAM Funds (UK) Ltdin group iSAM Funds (UK) Ltd4,470$540K0.11%new13F-HRTimelineGroup
LPL Financial LLC4,324$522K<0.01%+513F-HRTimeline
Central Pacific Bank - Trust Division4,316$521K0.06%013F-HRTimeline
KLP KAPITALFORVALTNING AS4,200$507K<0.01%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…4,158$502K<0.01%+95113F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC4,089$494K<0.01%-85613F-HRTimelineGroup
FIRST CITIZENS BANK & TRUST CO4,039$488K0.01%-22813F-HRTimeline
Gotham Asset Management, LLC4,022$486K<0.01%-31313F-HRTimeline
Amundiin group Amundi3,816$480K<0.01%+25613F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…3,899$471K<0.01%-40113F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD3,891$470K<0.01%-1,31713F-HRTimeline
Quantinno Capital Management LP3,887$470K<0.01%+81113F-HRTimeline
CWM, LLCin group CWM, LLC3,875$468K<0.01%+2,64313F-HRTimelineGroup
COLDSTREAM CAPITAL MANAGEMENT INC3,855$466K0.01%new13F-HRTimeline
EntryPoint Capital, LLC3,849$465K0.18%new13F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC3,793$458K0.04%-1,06613F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC3,751$453K<0.01%-64113F-HRTimelineGroup
ZACKS INVESTMENT MANAGEMENT3,427$414K<0.01%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC3,230$390K<0.01%new13F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC3,226$390K<0.01%new13F-HRTimeline
Wealthspire Advisors, LLC3,127$378K<0.01%+18513F-HRTimeline
TRED AVON FAMILY WEALTH, LLC3,125$377K0.13%13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…3,046$368K0.01%new13F-HRTimelineGroup
New Age Alpha Advisors, LLC2,999$362K0.02%-3713F-HRTimeline
Maryland State Retirement & Pension Sys…2,980$360K0.01%-3,10113F-HRTimeline
WHITTIER TRUST CO2,830$352K<0.01%+413F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources2,908$351K<0.01%new13F-HRTimelineGroup
Sanctuary Advisors, LLC2,852$345K<0.01%new13F-HR/ATimeline
OMERS ADMINISTRATION Corp2,800$338K<0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS2,727$329K<0.01%-43313F-HRTimeline
CITIZENS FINANCIAL GROUP INC/RIin group CITIZENS FINANCIAL GROUP INC/…2,703$327K<0.01%new13F-HRTimelineGroup
Arax Advisory Partners2,630$318K<0.01%+2,19013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…2,607$315K<0.01%-79913F-HRTimelineGroup
PharVision Advisers, LLC2,488$301K0.17%new13F-HRTimeline
Orion Porfolio Solutions, LLC2,486$300K<0.01%-37513F-HRTimeline
SILVERCREST ASSET MANAGEMENT GROUP LLC2,458$297K<0.01%-210,20213F-HRTimeline
Petrus Trust Company, LTA2,368$286K0.03%-6,18613F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/2,285$276K<0.01%-1,87513F-HRTimelineGroup
PERSONAL CFO SOLUTIONS, LLC2,284$276K0.05%-34613F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth2,268$274K<0.01%-36313F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…2,207$267K<0.01%new13F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.2,207$267K<0.01%13F-HR/ATimelineGroup
DIVERSIFIED TRUST CO2,196$265K0.01%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV2,175$263K<0.01%new13F-HRTimeline
SG Americas Securities, LLC2,112$255K<0.01%-5,61313F-HRTimeline
AlphaQuest LLC2,063$249K0.02%-1,94613F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC2,050$248K0.01%new13F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…1,988$248K<0.01%new13F-HRTimeline
Synergy Asset Management, LLCin group Synergy Asset Management, LLC2,051$248K0.01%new13F-HRTimelineGroup
INCEPTIONR LLC2,003$242K0.06%new13F-HRTimeline
Bedel Financial Consulting, Inc.2,000$242K0.03%new13F-HRTimeline
Zhang Financial LLC2,000$242K0.01%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC1,998$241K<0.01%-1,58413F-HRTimelineGroup
CIBC Asset Management Inc1,967$238K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…1,899$229K<0.01%013F-HRTimeline