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Disclosery

MTRN MATERION CORP

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COM (common), issuer CIK 1104657

390 managers (403 13F filers) reported a position in MTRN shares at 2026-06-30, 20,307,219 shares in all. 102 filers opened a position and 30 filers sold out during the quarter.

Managers
390
13F filers
403
New
102
Added
129
Reduced
124
Sold out
30
Shares held by filers
20,307,219

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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.3,473,501$1.03B0.02%+104,55513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding2,517,580$749M+70,158Timeline
STATE STREET CORPin group STATE STREET CORP1,456,230$433M0.01%+128,02613F-HRTimelineGroup
Capital Research Global Investorsin group Capital Research Global Inves…1,000,456$298M0.04%+210,58313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC616,020$183M0.08%-266,66413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC591,006$176M0.01%+87,03813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP577,952$172M0.03%-307,21513F-HRTimelineGroup
Fisher Asset Management, LLC495,230$147M0.04%+53,22513F-HRTimeline
BARROW HANLEY MEWHINNEY & STRAUSS LLC446,069$133M0.4%-83,77213F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY411,140$122M0.01%-13,33813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/329,282$97.9M0.01%+304,87913F-HRTimeline
SEGALL BRYANT & HAMILL, LLC313,988$93.4M1.11%-20,34913F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…281,712$83.8M0.1%+21,20813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co270,972$80.6M0.01%-21,57213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP264,657$78.7M0.01%+16,88013F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC245,405$73M0.02%-47,19313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC235,842$70.1M0.01%+119,00013F-HRTimelineGroup
Nuveen, LLCin group TIAA228,570$68M0.02%+85,36313F-HRTimelineGroup
Copeland Capital Management, LLC227,669$67.7M1.39%-37,57813F-HRTimeline
Harvey Partners, LLC220,068$65.4M4.54%-73,05313F-HRTimeline
Trigran Investments, Inc.219,877$65.4M11.99%-114,10813F-HRTimeline
Invesco Ltd.in group Invesco Ltd.200,119$59.5M<0.01%+20,90613F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 3 filers holding190,535$56.7M+155,722Timeline
GAMCO Investors (Gabelli)group of 2 filers holding182,940$54.4M-12,800Timeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/173,108$51.5M<0.01%+54,53913F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp164,967$49.1M0.01%+12,48713F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…158,335$47.1M0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA154,353$45.9M0.01%-64,69713F-HRTimelineGroup
SAMLYN CAPITAL, LLCin group SAMLYN CAPITAL, LLC151,721$45.1M0.75%new13F-HRTimelineGroup
KENNEDY CAPITAL MANAGEMENT LLC148,769$44.2M0.78%-17,22013F-HRTimeline
PANAGORA ASSET MANAGEMENT INC147,752$43.9M0.13%+62,57613F-HRTimeline
T. Rowe Price Investment Management, In…136,889$40.7M0.03%new13F-HRTimeline
ACK Asset Management LLC135,000$40.1M4.69%-339,80013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC123,519$36.7M0.02%+3,35513F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…119,300$35.5M0.06%+17,35013F-HR/ATimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…115,800$34.4M0.05%+101,10613F-HRTimeline
UBS Group AGgroup of 2 filers holding107,336$31.9M+9,535Timeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO108,166$31.6M<0.01%-75,25013F-HRTimelineGroup
MACKENZIE FINANCIAL CORP103,996$30.9M0.03%+97,93613F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP88,295$25.6M0.02%-43,45313F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS85,754$25.5M0.01%+43,61013F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc83,647$24.9M0.03%-80,78713F-HRTimelineGroup
ROYCE & ASSOCIATES LP79,530$23.7M0.19%-24,01013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC76,626$22.8M<0.01%-3,78413F-HRTimelineGroup
FMR LLCin group FMR LLC75,705$22.5M<0.01%+63,19613F-HRTimelineGroup
Public Sector Pension Investment Board71,497$21.3M0.06%-2,73313F-HR/ATimeline
GENDELL JEFFREY Lin group GENDELL JEFFREY L71,296$21.2M0.19%013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC69,840$20.8M0.01%+24,93613F-HRTimelineGroup
Granahan Investment Management, LLC69,793$20.8M0.74%-74,68313F-HRTimeline
AGF MANAGEMENT LTDin group AGF MANAGEMENT LTD68,093$20.3M0.08%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN65,217$19.4M<0.01%+7,86813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC64,753$19.3M0.01%+26,68013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO63,136$18.8M0.02%-16,47213F-HRTimelineGroup
Raiffeisen Bank International AGin group Raiffeisen Bank International…62,109$18M0.21%new13F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCgroup of 2 filers holding57,498$17.1M-9,351Timeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…57,092$17M0.03%+43,25113F-HRTimelineGroup
RHUMBLINE ADVISERS56,976$16.9M0.01%-7,22713F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC54,177$16.1M0.01%+30,29613F-HRTimelineGroup
KING LUTHER CAPITAL MANAGEMENT CORP53,461$15.9M0.07%-24,68613F-HRTimeline
Lumbard & Kellner, LLC51,579$15.3M4.65%-213F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc50,958$15.2M<0.01%-86813F-HRTimelineGroup
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…50,693$15.1M0.15%-2,66313F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC49,131$14.6M0.02%+44,96113F-HRTimelineGroup
Phocas Financial Corp.46,207$13.7M1.91%-2,40613F-HRTimeline
HAWK RIDGE CAPITAL MANAGEMENT LP45,800$13.6M0.44%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC42,958$12.8M0.01%-9713F-HRTimelineGroup
Swiss National Bank40,800$12.1M0.01%-20013F-HRTimeline
HEARTLAND ADVISORS INC40,550$12.1M0.54%-7,80213F-HRTimeline
HighTower Advisors, LLC38,999$11.6M0.01%-26,27613F-HRTimeline
Aptus Capital Advisors, LLC35,821$10.7M0.08%+19713F-HRTimeline
Fiera Capital Corpin group Fiera Capital Corp34,369$10.2M0.04%-24,24313F-HRTimelineGroup
ALGERT GLOBAL LLC33,140$9.86M0.12%+3,31013F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC31,069$9.24M0.01%-34113F-HRTimelineGroup
ProShare Advisors LLC30,089$8.95M0.01%-16,13013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC27,704$8.24M0.08%+6,80413F-HRTimeline
CHATHAM CAPITAL GROUP, INC.27,575$8.2M1.05%-1,93113F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co27,177$8.07M0.01%-2,53113F-HRTimelineGroup
Mawer Investment Management Ltd.26,872$7.99M0.05%new13F-HRTimeline
NORGES BANK25,900$7.7M<0.01%new13F-HRTimeline
HRT FINANCIAL LP25,856$7.69M0.01%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\25,354$7.54M<0.01%+6,29413F-HRTimelineGroup
Gilman Hill Asset Management, LLC25,140$7.48M1.02%-11,80013F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC24,573$7.31M0.02%-45513F-HRTimelineGroup
Informed Momentum Co LLC24,334$7.24M0.64%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…23,942$7.12M0.01%-67013F-HR/ATimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP23,739$7.06M0.01%+55913F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P21,817$6.49M0.15%-9,00113F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding21,757$6.47M+3,040Timeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…21,248$6.3M0.01%+10,78413F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …20,860$6.2M0.23%new13F-HRTimelineGroup
NEW YORK STATE TEACHERS RETIREMENT SYST…18,033$5.36M0.01%-2,73013F-HRTimeline
Jupiter Topco LLCin group Janus Henderson17,993$5.35M<0.01%13F-HRTimelineGroup
RICE HALL JAMES & ASSOCIATES, LLC17,098$5.08M0.25%-13913F-HRTimeline
CITIGROUP INCin group CITIGROUP INC16,148$4.8M<0.01%+12,73213F-HRTimelineGroup
PDT Partners, LLC15,931$4.74M0.25%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND15,929$4.74M0.01%+30013F-HRTimeline
Creative Planningin group Creative Planning15,812$4.7M<0.01%+5,10713F-HRTimelineGroup
Advisors Asset Management, Inc.15,595$4.64M0.07%+1,70313F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC14,979$4.45M<0.01%+8,23613F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.27,199$3.93M<0.01%+4,20013F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …12,985$3.86M<0.01%-5,44813F-HRTimelineGroup
Oliver Luxxe Assets LLC12,671$3.77M0.56%-12,06113F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC12,224$3.64M<0.01%-2,28613F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…12,214$3.63M0.02%+77813F-HRTimelineGroup
Covea Finance12,100$3.6M0.11%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…11,178$3.32M0.01%+6,90913F-HRTimeline
Illinois Municipal Retirement Fund10,791$3.21M0.04%-1,28313F-HRTimeline
Pinnacle Financial Partners, Inc.in group Pinnacle Financial Partners, …10,709$3.18M0.02%-1,72913F-HRTimelineGroup
PINNACLE ASSOCIATES LTD10,626$3.16M0.03%-1,09413F-HRTimeline
KINGSWOOD WEALTH ADVISORS, LLC10,624$3.16M0.13%-60013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …10,299$3.06M<0.01%+1,25513F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC9,971$2.94M<0.01%+2,65813F-HRTimelineGroup
DIVERSIFIED TRUST CO9,551$2.84M0.05%+6,99613F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC9,298$2.77M0.05%new13F-HRTimeline
Louisiana State Employees Retirement Sy…9,100$2.71M0.04%-10013F-HR/ATimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…8,860$2.63M0.02%+3,66613F-HRTimeline
Asset Management One Co., Ltd.8,596$2.55M0.01%-2,83313F-HRTimeline
NorthCrest Asset Manangement, LLC9,593$2.46M0.06%-88413F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.8,210$2.44M<0.01%013F-HRTimelineGroup
WESBANCO BANK INC8,200$2.44M0.06%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC8,036$2.39M<0.01%+4,20413F-HRTimelineGroup
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding8,001$2.38M+1,050Timeline
State of Tennessee, Department of Treas…7,919$2.36M0.01%-41913F-HRTimeline
MEYER HANDELMAN CO7,900$2.35M0.07%013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC7,842$2.33M0.01%-2,91013F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …7,746$2.3M<0.01%+6,10413F-HRTimelineGroup
State of Alaska, Department of Revenue7,651$2.27M0.02%-3,38513F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD7,594$2.26M<0.01%+3,32313F-HRTimeline
LPL Financial LLC7,278$2.16M<0.01%+38713F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…7,251$2.16M0.03%+5,67713F-HRTimelineGroup
Old West Investment Management, LLC7,176$2.13M0.23%+83713F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC7,064$2.1M<0.01%-1,28813F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…6,881$2.05M0.01%-8,02713F-HRTimelineGroup
Quantinno Capital Management LP6,753$2.01M<0.01%+83413F-HRTimeline
Curi Capital, LLC6,276$1.87M0.03%new13F-HRTimeline
Handelsbanken Fonder AB6,266$1.86M0.01%+20013F-HRTimeline
Police & Firemen's Retirement System of…6,192$1.84M0.01%+73613F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP5,758$1.71M<0.01%-22913F-HRTimelineGroup
Entropy Technologies, LP5,659$1.68M0.07%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM5,596$1.66M0.01%-10313F-HRTimeline
AMALGAMATED BANK5,593$1.66M0.01%-37513F-HRTimeline
Jackson Creek Investment Advisors LLC7,877$1.66M0.55%new13F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC5,583$1.66M0.02%+4713F-HRTimeline
KEYSTONE INVESTORS PTE LTD5,465$1.63M0.09%13F-HRTimeline
HERITAGE INVESTORS MANAGEMENT CORP5,440$1.62M0.04%-6613F-HRTimeline
Man Group plcin group Man Group plc5,422$1.61M<0.01%+90813F-HRTimelineGroup
ALLSTATE CORPin group ALLSTATE CORP5,286$1.57M0.02%+4113F-HRTimelineGroup
Cetera Investment Advisers5,210$1.55M<0.01%-39113F-HRTimeline
Dakota Wealth Management5,197$1.55M0.03%-3,67313F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources5,190$1.54M<0.01%-55213F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS5,095$1.52M<0.01%-4413F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…4,993$1.48M<0.01%+83513F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…4,933$1.47M0.01%-19513F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND4,760$1.42M0.02%013F-HRTimeline
Janney Montgomery Scott LLC4,615$1.37M<0.01%-1,75513F-HRTimeline
KLP KAPITALFORVALTNING AS4,600$1.37M<0.01%013F-HRTimeline
Deuterium Capital Management, LLC4,540$1.35M1.46%013F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al4,500$1.34M0.01%new13F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC4,434$1.32M<0.01%+1,64113F-HRTimelineGroup
TD Asset Management Inc4,362$1.3M<0.01%new13F-HRTimeline
State of Wyoming4,357$1.3M0.13%+1,24413F-HRTimeline
Ethic Inc.4,276$1.27M0.02%+37813F-HRTimeline
Central Pacific Bank - Trust Division4,273$1.27M0.13%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,093$1.22M<0.01%+20713F-HRTimelineGroup
Arosa Capital Management LP4,000$1.19M1.04%-21,00013F-HRTimeline
Advisors Preferred, LLCin group Advisors Preferred, LLC4,282$1.14M0.18%new13F-HRTimelineGroup
FIRST CITIZENS BANK & TRUST CO3,776$1.12M0.02%-13913F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC3,652$1.09M<0.01%-60713F-HRTimelineGroup
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…3,494$1.04M<0.01%+49713F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\3,316$986K<0.01%-57813F-HRTimelineGroup
STRS OHIO3,300$981K<0.01%+3,20013F-HRTimeline
Bridgewater Associates, LP3,213$956K<0.01%-44913F-HRTimeline
Maryland State Retirement & Pension Sys…3,032$902K0.02%+1513F-HRTimeline
Treasurer of the State of North Carolina3,009$895K<0.01%new13F-HRTimeline
Sanctuary Advisors, LLC2,929$871K<0.01%+33713F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd2,874$855K0.01%+21213F-HRTimelineGroup
CITIZENS FINANCIAL GROUP INC/RIin group CITIZENS FINANCIAL GROUP INC/…2,839$844K0.01%+10913F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV2,803$834K<0.01%+37313F-HR/ATimeline
Gotham Asset Management, LLC2,778$826K<0.01%+1313F-HRTimeline
Wealthspire Advisors, LLC2,741$815K<0.01%-2413F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC2,733$813K<0.01%-1,44713F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC2,681$797K<0.01%-83013F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/2,559$761K<0.01%+6913F-HRTimelineGroup
ZACKS INVESTMENT MANAGEMENT2,513$747K0.01%+713F-HRTimeline
WHITTIER TRUST CO2,836$742K0.01%+213F-HRTimeline
EntryPoint Capital, LLC2,432$723K0.18%+98413F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC2,296$683K0.03%-1,27113F-HRTimelineGroup
Pinpoint Asset Management (Singapore) P…2,286$680K0.14%new13F-HRTimeline
TRED AVON FAMILY WEALTH, LLC2,260$672K0.21%-82913F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…2,203$655K<0.01%new13F-HRTimelineGroup
Orion Porfolio Solutions, LLC2,117$630K<0.01%+13213F-HRTimeline
VARCOV Co.2,085$620K0.24%new13F-HRTimeline
XPONANCE LLC2,060$613K<0.01%+11213F-HRTimeline
IEQ CAPITAL, LLC2,013$599K<0.01%new13F-HRTimeline
Bedel Financial Consulting, Inc.2,000$595K0.06%013F-HRTimeline
Zhang Financial LLC2,000$595K0.02%013F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC1,961$583K<0.01%+38913F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…11,805$579K<0.01%-70113F-HRTimeline
UHLMANN PRICE SECURITIES, LLC1,940$577K0.02%-56513F-HRTimeline
ARS Investment Partners, LLC1,939$577K0.03%-2113F-HRTimeline