CMT · Core Molding Technologies Inc · Shareholders & Ownership

$23.13 -1.11 (-4.58%) At close · Oct 23

Russell 2000 member Rebalance outlook locked

Market Cap

$204.68M

8.85M

Volume · Oct 23 43.71K Avg daily vol (3M) 33.33K

Every disclosed holder of CMT 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.

How the holder list picks a filing →

Who Owns CMT

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	93	6,433,987	72.71%	Yes
Insiders (Forms 3, 4, 5)	0	0	0.00%	No
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	2,415,047	27.29%	Rest
Registered funds (N-PORT, not summed)	130	3,390,445	38.31%	No

Shares outstanding: 8,849,034, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

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 CMT

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	485,995	5.49%	+13,367	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	204,096	2.31%	+2,754	Jun 30, 2026	iShares Trust, not summed
1.2	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	77,741	0.88%	+6,456	Jun 30, 2026	iShares Trust, not summed
1.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	28,097	0.32%	+7,586	Jun 30, 2026	iShares Trust, not summed
1.4	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	13,705	0.15%	0	Jun 30, 2026	Quantitative Master Series LLC, not summed
1.5	iShares Russell 3000 ETF Fund S000004341 · Registered fund · Jun 30, 2026 iShares Trust, not summed	4,135	0.05%	-35	Jun 30, 2026	iShares Trust, not summed
2	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	461,947	5.22%	-26,500	Jun 30, 2026	carried, not yet filed for the newest quarter
3	Tieton Capital Management, LLC 13F CIK 1381954 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	452,030	5.11%	-7,860	Jun 30, 2026	carried, not yet filed for the newest quarter
4	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	407,258	4.60%	+16,051	Jun 30, 2026	carried, not yet filed for the newest quarter
4.1	U.S. SMALL CAP VALUE PORTFOLIO Fund S000000987 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	125,809	1.42%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
4.2	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	41,022	0.46%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
4.3	U.S. Targeted Value Portfolio Fund S000000970 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	37,724	0.43%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
4.4	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	31,245	0.35%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
4.5	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	30,157	0.34%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
5	GAMCO INVESTORS, INC. ET AL 13F CIK 807249 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	375,800	4.25%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
6	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	343,143	3.88%	+1,524	Jun 30, 2026	carried, not yet filed for the newest quarter
7	GABELLI FUNDS LLC 13F CIK 1081407 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	306,500	3.46%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
7.1	The Gabelli Small Cap Growth Fund Fund S000001062 · Registered fund · Jun 30, 2026 Gabelli Equity Series Funds Inc, not summed	306,000	3.46%	0	Jun 30, 2026	Gabelli Equity Series Funds Inc, not summed
7.2	Gabelli Global Mini Mites Fund Fund S000063160 · Registered fund · Jun 30, 2026 GAMCO Global Series Funds, Inc, not summed	500	0.01%	0	Jun 30, 2026	GAMCO Global Series Funds, Inc, not summed
8	1290 VT GAMCO Small Company Value Portfolio Fund S000009151 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	300,000	3.39%	0	Jun 30, 2026	EQ Advisors Trust, not summed
9	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	283,536	3.20%	+26,034	Jun 30, 2026	carried, not yet filed for the newest quarter
9.1	Royce Micro-Cap Fund Fund S000009506 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	84,858	0.96%	+6,454	Jun 30, 2026	ROYCE FUND, not summed
9.2	Royce Capital Fund - Micro-Cap Portfolio Fund S000009496 · Registered fund · Jun 30, 2026 ROYCE CAPITAL FUND, not summed	27,641	0.31%	+2,103	Jun 30, 2026	ROYCE CAPITAL FUND, not summed
10	22NW, LP 13F CIK 1694297 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	273,521	3.09%	+50,783	Jun 30, 2026	carried, not yet filed for the newest quarter
11	AMERICAN CENTURY COMPANIES INC 13F CIK 748054 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	254,059	2.87%	+35,029	Jun 30, 2026	carried, not yet filed for the newest quarter
12	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	247,956	2.80%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
13	NEEDHAM INVESTMENT MANAGEMENT LLC 13F CIK 1167212 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	242,600	2.74%	-9,771	Jun 30, 2026	carried, not yet filed for the newest quarter
13.1	Needham Aggressive Growth Fund Fund S000003815 · Registered fund · Jun 30, 2026 Needham Funds Inc, not summed	200,100	2.26%	-3,921	Jun 30, 2026	Needham Funds Inc, not summed
14	Avantis U.S. Small Cap Value ETF Fund S000066459 · Registered fund · May 31, 2026 American Century ETF Trust, not summed	226,692	2.56%	+37,970	May 31, 2026	American Century ETF Trust, not summed
15	DIAMOND HILL CAPITAL MANAGEMENT INC 13F CIK 1217541 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	215,699	2.44%	+20,294	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	DIAMOND HILL SMALL CAP FUND Fund S000003154 · Registered fund · Jun 30, 2026 Diamond Hill Funds, not summed	96,640	1.09%	+2,431	Jun 30, 2026	Diamond Hill Funds, not summed
16	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	198,916	2.25%	+17,260	Jun 30, 2026	carried, not yet filed for the newest quarter
17	PALOMAKI ERIC Insider CIK 1753920 · Jun 1, 2026 Chief Operating Officer, issuer-wide, not summed	181,760	2.05%	+20,000	Jun 1, 2026	Chief Operating Officer, issuer-wide, not summed
18	ROYCE MICRO-CAP TRUST, INC. Fund · Registered fund · Jun 30, 2026 ROYCE MICRO-CAP TRUST, INC., not summed	171,037	1.93%	—	Jun 30, 2026	ROYCE MICRO-CAP TRUST, INC., not summed
19	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	165,249	1.87%	+1,020	Jun 30, 2026	carried, not yet filed for the newest quarter
19.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	3,000	0.03%	+600	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
19.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	151	0.00%	-87	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
20	BARD ASSOCIATES INC 13F CIK 1105907 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	143,550	1.62%	-1,638	Jun 30, 2026	carried, not yet filed for the newest quarter
21	Pacific Ridge Capital Partners, LLC 13F CIK 1591546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	143,189	1.62%	-1,107	Jun 30, 2026	carried, not yet filed for the newest quarter
22	DUVALL DAVID L. Insider CIK 1757008 · Mar 27, 2026 Director, Chief Executive Officer, issuer-wide, not summed	136,990	1.55%	-15,772	Mar 27, 2026	Director, Chief Executive Officer, issuer-wide, not summed
23	SEI INVESTMENTS CO 13F CIK 350894 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	128,456	1.45%	-97,076	Jun 30, 2026	carried, not yet filed for the newest quarter
23.1	SIIT SMALL CAP FUND Fund S000006772 · Registered fund · May 31, 2026 SEI INSTITUTIONAL INVESTMENTS TRUST, not summed	9,500	0.11%	0	May 31, 2026	SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
24	Allspring Global Investments Holdings, LLC 13F CIK 1890906 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	118,470	1.34%	+9,913	Jun 30, 2026	carried, not yet filed for the newest quarter
24.1	Allspring Small Company Value Portfolio Fund S000007553 · Registered fund · Jul 31, 2026 ALLSPRING MASTER TRUST, not summed	94,816	1.07%	-2,360	Jul 31, 2026	ALLSPRING MASTER TRUST, not summed
25	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	112,542	1.27%	+4,174	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	Omni Small-Cap Value Fund Fund S000033567 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	37,900	0.43%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
25.2	Ultra-Small Company Market Fund Fund S000004424 · Registered fund · Jun 30, 2026 Bridgeway Funds, Inc., not summed	14,400	0.16%	0	Jun 30, 2026	Bridgeway Funds, Inc., not summed
26	Smith Andrew O Insider CIK 1650364 · Mar 11, 2026 Director, issuer-wide, not summed	100,926	1.14%	+4,436	Mar 11, 2026	Director, issuer-wide, not summed
27	CELLITTI THOMAS R Insider CIK 1249659 · Jun 25, 2026 Director, issuer-wide, not summed	92,393	1.04%	-1,413	Jun 25, 2026	Director, issuer-wide, not summed
28	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	87,357	0.99%	+2,538	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
29	Zimmer John P Insider CIK 1591397 · May 12, 2025 EVP, Treasurer, Secretary, CFO, issuer-wide, not summed	87,255	0.99%	-3,859	May 12, 2025	EVP, Treasurer, Secretary, CFO, issuer-wide, not summed
30	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	85,734	0.97%	+9,702	Jun 30, 2026	carried, not yet filed for the newest quarter
31	O'SHAUGHNESSY ASSET MANAGEMENT, LLC 13F CIK 1423442 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	85,700	0.97%	+7,498	Jun 30, 2026	carried, not yet filed for the newest quarter
32	MACKENZIE FINANCIAL CORP 13F CIK 919859 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	71,231	0.81%	+11,515	Jun 30, 2026	carried, not yet filed for the newest quarter
33	WHITE PINE CAPITAL LLC 13F CIK 1137429 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	70,977	0.80%	+46,765	Jun 30, 2026	carried, not yet filed for the newest quarter
34	Teton Advisors, LLC 13F CIK 2086025 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	70,890	0.80%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
35	TETON Westwood Mighty Mites Fund Fund S000001084 · Registered fund · Jun 30, 2026 Teton Westwood Funds, not summed	70,890	0.80%	0	Jun 30, 2026	Teton Westwood Funds, not summed
36	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	67,727	0.77%	+24,834	Jun 30, 2026	carried, not yet filed for the newest quarter
37	1290 GAMCO Small/Mid Cap Value Fund Fund S000045910 · Registered fund · Jul 31, 2026 1290 Funds, not summed	64,500	0.73%	0	Jul 31, 2026	1290 Funds, not summed
38	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	64,256	0.73%	+3,324	Jun 30, 2026	carried, not yet filed for the newest quarter
38.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	4,308	0.05%	+1,133	Jun 30, 2026	Northern Funds, not summed
39	RITHOLTZ WEALTH MANAGEMENT 13F CIK 1698218 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	60,814	0.69%	+6,778	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Empowered Funds, LLC 13F CIK 1592828 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	58,542	0.66%	+4,174	Jun 30, 2026	carried, not yet filed for the newest quarter
40.1	EA Bridgeway Omni Small-Cap Value ETF Fund S000078089 · Registered fund · Jun 30, 2026 EA Series Trust, not summed	58,542	0.66%	+4,174	Jun 30, 2026	EA Series Trust, not summed
41	Quantinno Capital Management LP 13F CIK 1759654 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	58,382	0.66%	+12,920	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Adara Smaller Companies Fund Fund S000047045 · Registered fund · May 31, 2026 RBB Fund, Inc., not summed	56,370	0.64%	0	May 31, 2026	RBB Fund, Inc., not summed
43	Jauchius Matthew Insider CIK 1566497 · Mar 11, 2026 Director, issuer-wide, not summed	56,112	0.63%	+4,590	Mar 11, 2026	Director, issuer-wide, not summed
44	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	52,077	0.59%	+2,730	Jun 30, 2026	carried, not yet filed for the newest quarter
45	ACUITAS US MICROCAP FUND Fund S000045890 · Registered fund · Jun 30, 2026 FORUM FUNDS II, not summed	50,387	0.57%	-3,240	Jun 30, 2026	FORUM FUNDS II, not summed
46	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	49,917	0.56%	-1,896	Jun 30, 2026	carried, not yet filed for the newest quarter
46.1	Goldman Sachs Small Cap Value Insights Fund Fund S000014929 · Registered fund · Jul 31, 2026 Goldman Sachs Trust, not summed	24,066	0.27%	0	Jul 31, 2026	Goldman Sachs Trust, not summed
46.2	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	10,877	0.12%	+144	May 31, 2026	Goldman Sachs ETF Trust, not summed
47	RAYMOND JAMES FINANCIAL INC 13F CIK 720005 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	45,773	0.52%	-2,352	Jun 30, 2026	carried, not yet filed for the newest quarter
48	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 13F CIK 1164508 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	45,621	0.52%	+14,449	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Panda Alex Joseph Insider CIK 2072167 · Jun 29, 2026 EVP, Treasurer, Secretary, CFO, issuer-wide, not summed	44,590	0.50%	+275	Jun 29, 2026	EVP, Treasurer, Secretary, CFO, issuer-wide, not summed
50	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	41,830	0.47%	+1,811	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed

16 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.

Showing 1–50 of 185 holders

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Key facts CIK 1026655 CUSIP 218683100 13F (30d) 10 filings 10 filers Visit website Investor relations