Metallus Inc.

MTUS

Exchange: NYSE
Industry: Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
SEC CIK: 0001598428

SEC filings (opens in a new tab)

In the last 90 days, Metallus Inc. insiders filed 0 open-market purchases and 3 sales; 202 institutions reported holding it in 13F filings for Q2 2026, worth $666.6M in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Metallus Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of MTUS: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	195	1	197	+3
Shares	34.4M	1.52K	35.0M	+523.0K (+1.5%)
Value	$569.4M	$25.0K	$600.2M	+$30.8M (+5.4%)

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (27)

Institutions that held Metallus Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to MTUS in Q4 2025
Institution	Shares	Value	% of portfolio
OpenArc Corporate Advisory, LLC	409,414	$7.03M	0.12%
Nomura Asset Management International Inc.	355,606	$6.10M	0.01%
SEI Investments Co	217,769	$3.74M	0.00%
Man Group plc	95,514	$1.64M	0.00%
Unison Advisors LLC	42,215	$724.4K	0.06%
Dynamic Technology Lab Private Ltd	20,686	$355.0K	0.08%
Guggenheim Capital LLC	17,828	$305.9K	0.00%
ExodusPoint Capital Management, LP	15,360	$263.6K	0.00%
EntryPoint Capital, LLC	15,045	$258.2K	0.10%
Prelude Capital Management, LLC	14,800	$254.0K	0.02%
VARCOV Co.	14,573	$250.1K	0.10%
Canada Pension Plan Investment Board	12,500	$214.5K	0.00%
Balyasny Asset Management LLC	10,920	$187.4K	0.00%
We Are One Seven, LLC	10,038	$172.3K	0.00%
Quantbot Technologies LP	3,442	$59.1K	0.00%
Pinnacle Wealth Planning Services, Inc.	2,890	$49.6K	0.01%
Group One Trading, L.P.	1,400	$24.0K	0.00%
Cape Investment Advisory, Inc.	600	$10.3K	0.00%
Sound Income Strategies, LLC	255	$5.07K	0.00%
High Note Wealth, LLC	254	$4.36K	0.00%
Federated Hermes, Inc.	167	$2.87K	0.00%
Kohmann Bosshard Financial Services, LLC	121	$2.08K	0.00%
Los Angeles Capital Management LLC	104	$1.83K	0.00%
Basecamp Wealth Advisors LLC	66	$1.13K	0.00%
CIBC Private Wealth Group, LLC	8	$137	0.00%
True Wealth Design, LLC	5	$86	0.00%
Gilpin Wealth Management, LLC	4	$69	0.00%

Sold out (24)

Institutions that held Metallus Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of MTUS in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Macquarie Group Ltd	363,977	$6.02M
Empowered Funds, LLC	230,803	$3.82M
Millennium Management LLC	186,476	$3.08M
Wexford Capital LP	105,543	$1.74M
Jane Street Group, LLC	74,754	$1.24M
Citadel Advisors LLC	65,217	$1.08M
Trexquant Investment LP	56,393	$932.2K
Storebrand Asset Management AS	55,980	$925.3K
HRT Financial LP	47,972	$792.0K
Walleye Capital LLC	40,637	$671.7K
CenterBook Partners LP	25,751	$425.7K
Jacobs Levy Equity Management, Inc	17,434	$288.2K
Cambridge Investment Research Advisors, Inc.	17,201	$284.0K
Yousif Capital Management, LLC	11,176	$184.7K
CoreCommodity Management, LLC	10,994	$181.7K
Annis Gardner Whiting Capital Advisors, LLC	6,214	$102.7K
ISAM Funds (UK) Ltd	3,190	$52.7K
Ameritas Advisory Services, LLC	1,300	$21.5K
Quarry LP	1,267	$20.9K
Alpine Bank Wealth Management	750	$12.4K
Atlantic Trust, LLC	39	$645
Vermillion Wealth Management, Inc.	25	$413
Caitong International Asset Management Co., Ltd	10	$165
Advisory Services Network, LLC	7	$116

Not filed for Q4 2025 yet (1)

Institutions that held Metallus Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MTUS in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Shell Asset Management Co	1,517	$25.0K