MTRN · MATERION Corp · Shareholders & Ownership
Every disclosed holder of MTRN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns MTRN
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 20,414,297 | 97.99% |
| Insiders (Forms 3, 4, 5) | 377,075 | 1.81% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 42,353 | 0.20% |
| Registered funds (N-PORT, not summed) | 11,341,295 | 54.44% |
Shares outstanding: 20,833,725, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of MTRN
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,473,501 | ||
| 1.1 |
iShares Core S&P Small-Cap ETF
Fund
S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,253,149 | ||
| 1.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
538,871 | ||
| 1.3 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
193,799 | ||
| 1.4 |
iShares S&P Small-Cap 600 Growth ETF
Fund
S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
102,808 | ||
| 1.5 |
iShares S&P Small-Cap 600 Value ETF
Fund
S000004316 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
80,587 | ||
| 2 |
|
1,456,230 | ||
| 2.1 |
State Street(R) SPDR(R) S&P(R) Metals & Mining ETF
Fund
S000012333 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
621,959 | ||
| 2.2 |
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund
S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
190,660 | ||
| 2.3 |
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund
S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
65,672 | ||
| 2.4 |
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF
Fund
S000006974 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
48,622 | ||
| 2.5 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
7,255 | ||
| 3 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,396,559 | ||
| 4 |
Capital Research Global Investors
13F
CIK 1422848 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,000,456 | ||
| 5 |
SMALLCAP World Fund Inc
Fund
S000009599 · Registered fund · Jun 30, 2026
SMALLCAP World Fund Inc, not summed
|
973,999 | ||
| 6 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
937,553 | ||
| 7 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
660,768 | ||
| 8 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
616,020 | ||
| 8.1 |
Small Cap Growth Fund
Fund
S000006193 · Registered fund · Jul 31, 2026
American Century Mutual Funds, Inc., not summed
|
196,336 | ||
| 8.2 |
Global Small Cap Fund
Fund
S000053103 · Registered fund · May 31, 2026
American Century World Mutual Funds, Inc., not summed
|
2,399 | ||
| 9 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
591,006 | ||
| 10 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
577,952 | ||
| 10.1 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
99,969 | ||
| 10.2 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
96,495 | ||
| 10.3 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
68,932 | ||
| 10.4 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
40,792 | ||
| 10.5 |
U.S. CORE EQUITY 2 PORTFOLIO
Fund
S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
31,415 | ||
| 11 |
Fisher Asset Management, LLC
13F
CIK 850529 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
495,230 | ||
| 12 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
477,240 | ||
| 13 |
BARROW HANLEY MEWHINNEY & STRAUSS LLC
13F
CIK 313028 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
446,069 | ||
| 14 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
411,140 | ||
| 14.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
45 | ||
| 15 |
Avantis U.S. Small Cap Value ETF
Fund
S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
364,636 | ||
| 16 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
329,282 | ||
| 16.1 |
T. Rowe Price New Horizons Fund, Inc.
Fund
S000002106 · Registered fund · Jun 30, 2026
T. ROWE PRICE NEW HORIZONS FUND, INC., not summed
|
164,200 | ||
| 16.2 |
T. Rowe Price Small-Cap Stock Fund, Inc.
Fund
S000002120 · Registered fund · Jun 30, 2026
T. ROWE PRICE SMALL-CAP STOCK FUND, INC., not summed
|
61,000 | ||
| 16.3 |
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund
S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
35,700 | ||
| 16.4 |
T. Rowe Price Institutional Small-Cap Stock Fund
Fund
S000002094 · Registered fund · Jun 30, 2026
T. Rowe Price Equity Funds, Inc., not summed
|
32,857 | ||
| 16.5 |
T. Rowe Price Small-Cap Index Fund
Fund
S000051327 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
|
3,166 | ||
| 17 |
SEGALL BRYANT & HAMILL, LLC
13F
CIK 1006378 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
313,988 | ||
| 17.1 |
SBH SMALL CAP GROWTH FUND
Fund
S000043443 · Registered fund · Jun 30, 2026
Segall Bryant & Hamill Trust, not summed
|
38,699 | ||
| 17.2 |
SBH SMALL CAP CORE FUND
Fund
S000067438 · Registered fund · Jun 30, 2026
Segall Bryant & Hamill Trust, not summed
|
9,317 | ||
| 18 |
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund
S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
302,199 | ||
| 19 |
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
13F
CIK 1705339 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
281,712 | ||
| 19.1 |
Global X U.S. Infrastructure Development ETF
Fund
S000056509 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
|
250,573 | ||
| 19.2 |
Global X Russell 2000 ETF
Fund
S000085029 · Registered fund · Jul 31, 2026
GLOBAL X FUNDS, not summed
|
10,052 | ||
| 20 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
270,972 | ||
| 20.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
99,781 | ||
| 20.2 |
Schwab Fundamental U.S. Small Company ETF
Fund
S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
62,148 | ||
| 20.3 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
50,907 | ||
| 20.4 |
Schwab Fundamental U.S. Small Company Index Fund
Fund
S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
14,491 | ||
| 20.5 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
12,452 | ||
| 21 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
264,657 | ||
| 21.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
10,625 | ||
| 21.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
4,226 | ||
| 21.3 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
513 | ||
| 22 |
RAYMOND JAMES FINANCIAL INC
13F
CIK 720005 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
245,405 | ||
| 22.1 |
Carillon Eagle Small Cap Growth Fund
Fund
S000008482 · Registered fund · Jun 30, 2026
Carillon Series Trust, not summed
|
25,421 | ||
| 22.2 |
Carillon Chartwell Small Cap Value Fund
Fund
S000075964 · Registered fund · Jun 30, 2026
Carillon Series Trust, not summed
|
2,753 | ||
| 23 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
238,437 | ||
| 24 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
235,842 | ||
| 24.1 |
Goldman Sachs Small Cap Value Insights Fund
Fund
S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
25,845 | ||
| 24.2 |
Goldman Sachs Small Cap Equity Insights Fund
Fund
S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
20,348 | ||
| 24.3 |
Goldman Sachs Small Cap Growth Insights Fund
Fund
S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
9,785 | ||
| 24.4 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
|
5,786 | ||
| 24.5 |
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund
S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
|
3,870 | ||
| 25 |
|
228,570 | ||
| 25.1 |
Nuveen Quant Small Cap Equity Fund
Fund
S000005386 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
83,250 | ||
| 25.2 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
68,150 | ||
| 25.3 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
27,387 | ||
| 25.4 |
Nuveen ESG Small-Cap ETF
Fund
S000055815 · Registered fund · Jul 31, 2026
NuShares ETF Trust, not summed
|
19,621 | ||
| 25.5 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
17,965 | ||
| 26 |
Harvey Partners, LLC
13F
CIK 1406484 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
220,068 | ||
| 27 |
Trigran Investments, Inc.
13F
CIK 1336800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
219,877 | ||
| 28 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
200,119 | ||
| 28.1 |
Invesco S&P SmallCap Momentum ETF
Fund
S000003024 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
133,276 | ||
| 28.2 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
24,560 | ||
| 28.3 |
Invesco S&P SmallCap 600 Revenue ETF
Fund
S000064596 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
13,865 | ||
| 28.4 |
Invesco Dorsey Wright Basic Materials Momentum ETF
Fund
S000013127 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
7,918 | ||
| 28.5 |
Invesco S&P SmallCap Materials ETF
Fund
S000028302 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
5,722 | ||
| 29 |
CONGRESS ASSET MANAGEMENT CO
13F
CIK 897378 · Registered investment adviser · Sep 30, 2026
|
192,274 | ||
| 30 |
GAMCO INVESTORS, INC. ET AL
13F
CIK 807249 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
180,940 | ||
| 31 |
1290 VT GAMCO Small Company Value Portfolio
Fund
S000009151 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
|
179,000 | ||
| 32 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
173,108 | ||
| 33 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
164,967 | ||
| 33.1 |
BNY Mellon US Small Cap Core Equity ETF
Fund
S000067262 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
768 | ||
| 34 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
158,335 | ||
| 35 |
ROYAL BANK OF CANADA
13F
CIK 1000275 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
154,353 | ||
| 36 |
SAMLYN CAPITAL, LLC
13F
CIK 1421097 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
151,721 | ||
| 37 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
149,106 | ||
| 38 |
KENNEDY CAPITAL MANAGEMENT LLC
13F
CIK 884589 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
148,769 | ||
| 38.1 |
Kennedy Capital Small Cap Value Fund
Fund
S000076118 · Registered fund · Jun 30, 2026
INVESTMENT MANAGERS SERIES TRUST II, not summed
|
2,967 | ||
| 38.2 |
Kennedy Capital Small Cap Growth Fund
Fund
S000076117 · Registered fund · Jun 30, 2026
INVESTMENT MANAGERS SERIES TRUST II, not summed
|
34 | ||
| 39 |
PANAGORA ASSET MANAGEMENT INC
13F
CIK 883677 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
147,752 | ||
| 40 |
T. Rowe Price Investment Management, Inc.
13F
CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
136,889 | ||
| 41 |
ACK Asset Management LLC
13F
CIK 1510940 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
135,000 | ||
| 42 |
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund
S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
|
131,144 | ||
| 43 |
PRINCIPAL FINANCIAL GROUP INC
13F
CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
123,519 | ||
| 43.1 |
SmallCap Growth Fund I
Fund
S000007175 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
|
31,227 | ||
| 43.2 |
Principal U.S. Small-Cap ETF
Fund
S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
|
21,574 | ||
| 43.3 |
SmallCap S&P 600 Index Fund
Fund
S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
|
15,326 | ||
| 44 |
Copeland Capital Management, LLC
13F
CIK 1541743 · Investment adviser · Sep 30, 2026
|
120,742 | ||
| 45 |
First Eagle Investment Management, LLC
13F
CIK 1325447 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
119,300 | ||
| 45.1 |
First Eagle Small Cap Opportunity Fund
Fund
S000072438 · Registered fund · Jul 31, 2026
First Eagle Funds, not summed
|
32,482 | ||
| 46 |
VANGUARD DIVIDEND APPRECIATION INDEX FUND
Fund
S000011322 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
|
117,694 | ||
| 47 |
|
116,699 | ||
| 48 |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F
CIK 1535845 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
115,800 | ||
| 49 |
American Beacon Small Cap Value Fund
Fund
S000001818 · Registered fund · Jul 31, 2026
AMERICAN BEACON FUNDS, not summed
|
115,542 | ||
| 50 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
108,166 |
54 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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