Metallus Inc.
US ˙ NYSE ˙ US8873991033

SecurityMTUS / Metallus Inc.
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership54,939 shares
Latest Disclosed Value $ 897,703
Quantinno Capital Management LP reports 52.98% increase in ownership of MTUS / Metallus Inc.

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 54,939 shares of Metallus Inc. (US:MTUS) valued at $897,703 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 35,913 shares of Metallus Inc.. This represents a change in shares of 52.98% during the quarter. The current value of the position is $1,106,471 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F METALLUS COM 887399103 54,939 19,026 52.98 898 45.62 0.0015
2026-02-17 2025-12-31 13F METALLUS COM 887399103 35,913 5,604 18.49 616 22.95 0.0012
2025-11-14 2025-09-30 13F METALLUS COM 887399103 30,309 4,895 19.26 501 28.13 0.0014
2025-08-14 2025-06-30 13F METALLUS COM 887399103 25,414 11,977 89.13 392 118.44 0.0017
2025-05-12 2025-03-31 13F METALLUS COM 887399103 13,437 13,437 180 0.0012
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.