Who owns Metallus Inc.?
Institutional ownership of MTUS from SEC Form 13F filings across 141 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
141
13F holders
$429.6M
value, 2026 filers
57.2%
of shares outstanding (23.8M sh)
22
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of MTUS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 5.8M | $108.9M | 0.0% | 14% | +3.0% |
| 2 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.0M | $37.5M | 0.0% | 4.8% | +8.9% |
| 3 | AMERICAN CENTURY COMPANIES INC | 1.7M | $31.3M | 0.0% | 4% | +0.8% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.6M | $29.3M | 0.0% | 3.8% | -49.8% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.1M | $19.9M | 0.0% | 2.6% | -0.7% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 929,925 | $17.4M | 0.0% | 2.2% | +5.8% |
| 7 | AMERIPRISE FINANCIAL INC | 726,328 | $13.6M | 0.0% | 1.7% | +11.7% |
| 8 | Sixth Street Partners Management Company, L.P.NEW | 675,374 | $12.6M | 2.2% | 1.6% | new |
| 9 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 675,374 | $12.6M | 0.0% | 1.6% | -16.8% |
| 10 | ACADIAN ASSET MANAGEMENT LLC | 638,533 | $11,918 | 0.0% | 1.5% | +4409.7% |
| 11 | OpenArc Corporate Advisory, LLC | 566,045 | $10.6M | 0.1% | 1.4% | +3.7% |
| 12 | TWO SIGMA INVESTMENTS, LP | 536,457 | $10.0M | 0.0% | 1.3% | -2.6% |
| 13 | MORGAN STANLEY | 513,898 | $9.6M | 0.0% | 1.2% | +16.8% |
| 14 | Invesco Ltd. | 473,856 | $8.9M | 0.0% | 1.1% | -3.7% |
| 15 | CITADEL ADVISORS LLC | 462,261 | $8.6M | 0.0% | 1.1% | +97.3% |
| 16 | GOLDMAN SACHS GROUP INC | 430,455 | $8.0M | 0.0% | 1% | +30.3% |
| 17 | NORTHERN TRUST CORP | 407,644 | $7.6M | 0.0% | 1% | +6.1% |
| 18 | Russell Investments Group, Ltd. | 325,722 | $6.1M | 0.0% | 0.8% | -0.2% |
| 19 | Public Sector Pension Investment Board | 245,900 | $4.6M | 0.0% | 0.6% | +91.8% |
| 20 | Nuveen, LLC | 239,570 | $4.5M | 0.0% | 0.6% | +194.3% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 237,898 | $4.4M | 0.0% | 0.6% | +1.2% |
| 22 | Bank of New York Mellon Corp | 230,297 | $4.3M | 0.0% | 0.6% | +0.9% |
| 23 | PRINCIPAL FINANCIAL GROUP INC | 173,037 | $3.2M | 0.0% | 0.4% | -0.6% |
| 24 | SEI INVESTMENTS CO | 145,151 | $2.7M | 0.0% | 0.3% | -49.5% |
| 25 | D. E. Shaw & Co., Inc. | 141,258 | $2.6M | 0.0% | 0.3% | +104.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.