SIMPLEX TRADING, LLC

Position in MTUS — Metallus Inc.

CIK 1488542 CHICAGO, IL

Position in MTUS

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$68,121

-$93,080 QoQ

Shares Held

4,169

-55.6% QoQ

Ownership

0.010%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Basic Materials · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $1,369,956 across 9 Steel names. MTUS ranks #5 (5.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASTL	Algoma Steel Group Inc.	154,905	$639,757
2	RS	Reliance, Inc.	819	$248,910
3	TX	Ternium S.A.	4,790	$192,318
4	MSB	Mesabi Trust	2,483	$78,214
5	MTUS	Metallus Inc. This page	4,169	$68,121
6	SID	National Steel Co	44,613	$55,320
7	PKX	Posco Holdings Inc.	608	$35,561
8	GGB	Gerdau S.A.	9,302	$33,580

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$68,121	4,169	-55.6%	Shares	Sole	2026-05-14
2025-12-31	$161,201	9,394	+187780.0%	Shares	Sole	2026-02-11
2025-09-30	$82	5	-99.5%	Shares	Sole	2025-11-12
2025-06-30	$15,286	992	-32.5%	Shares	Sole	2025-08-05
2023-09-30	$31,906	1,469	+399.7%	Shares	Sole	2023-11-01
2022-09-30	$4,407	294	-72.3%	Shares	Sole	2022-11-04
2022-06-30	$19,888	1,063	-96.6%	Shares	Sole	2022-08-03
2022-03-31	$684,406	31,280	+2966.7%	Shares	Sole	2022-05-02
2021-12-31	$16,830	1,020	-94.4%	Shares	Sole	2022-02-23
2021-09-30	$239,220	18,289	0.0%	Shares	Sole	2021-10-28
2021-06-30	$258,789	18,289	+124.2%	Shares	Sole	2021-08-12
2021-03-31	$95,833	8,156	-4.6%	Shares	Sole	2021-04-26
2020-12-31	$39,933	8,551	+397.2%	Shares	Sole	2021-02-02
2020-09-30	$6,106	1,720	+114.7%	Shares	Sole	2020-10-14
2020-06-30	$3,115	801	—	Shares	Sole	2020-07-13
No filing history on record for this holder in this stock.