Boston Partners

Position in STLD — Steel Dynamics Inc

CIK 1386060 BOSTON, MA

Position in STLD

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$317,642,580

+$13,711,978 QoQ

Shares Held

1,764,681

-1.6% QoQ

Ownership

1.23%

of shares outstanding

% of Portfolio

0.33%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

12 quarters on record

Voting authority Sole 79% Shared 0% None 21%

Basic Materials · as of Mar 31, 2026

Boston Partners holds $961,465,665 across 6 Steel names. STLD ranks #2 (33.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RS	Reliance, Inc.	2,110,934	$641,555,060
2	STLD	Steel Dynamics Inc This page	1,764,681	$317,642,580
3	TX	Ternium S.A.	21,759	$873,623
4	MTUS	Metallus Inc.	44,723	$730,773
5	ASTL	Algoma Steel Group Inc.	87,067	$359,586
6	NWPX	NWPX Infrastructure, Inc.	3,905	$304,043

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$317,642,580	1,764,681	-1.6%	Shares	Other	2026-05-11
2025-12-31	$303,930,602	1,793,630	+147.9%	Shares	Defined	2026-02-13
2025-09-30	$100,889,872	723,588	+26939.9%	Shares	Defined	2025-11-13
2022-03-31	$223,258	2,676	-52.8%	Shares	Other	2022-05-10
2021-12-31	$352,061	5,672	-25.8%	Shares	Other	2022-02-04
2021-09-30	$447,196	7,647	-99.4%	Shares	Other	2021-11-05
2021-06-30	$71,147,380	1,193,748	-82.9%	Shares	Defined	2021-08-12
2021-03-31	$355,189,037	6,997,420	-26.8%	Shares	Other	2021-05-10
2020-12-31	$352,496,223	9,560,516	+143.0%	Shares	Defined	2021-02-10
2020-09-30	$112,652,406	3,934,768	+1.4%	Shares	Defined	2020-11-13
2020-06-30	$101,283,910	3,882,097	+33.4%	Shares	Other	2020-08-12
2020-03-31	$65,573,728	2,909,216	—	Shares	Other	2020-05-13
No filing history on record for this holder in this stock.