ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in RYZ — Ryerson Holding Corp

CIK 1164508 BOSTON, MA

Position in RYZ

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

Position Value

$19,173,933

+$9,091,843 QoQ

Shares Held

852,933

+112.9% QoQ

Ownership

1.64%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

23 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Industrials · as of Mar 31, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $338,281,252 across 8 Metal Fabrication names. RYZ ranks #5 (5.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ATI	Ati Inc	1,203,726	$175,093,983
2	MLI	Mueller Industries Inc	1,526,767	$84,582,891
3	PRLB	Proto Labs Inc	463,780	$26,444,735
4	WOR	Worthington Enterprises, Inc.	480,515	$25,054,052
5	RYZ	Ryerson Holding Corp This page	852,933	$19,173,933
6	MEC	Mayville Engineering Company, Inc.	185,261	$3,325,434
7	IIIN	Insteel Industries Inc	75,672	$2,543,335
8	TG	Tredegar Corp	259,483	$2,062,889

23 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$19,173,933	852,933	+112.9%	Shares	Defined	2026-05-14
2025-12-31	$10,082,090	400,719	-9.0%	Shares	Defined	2026-02-13
2025-09-30	$10,068,481	440,441	+21.0%	Shares	Defined	2025-11-13
2025-06-30	$7,851,609	364,006	+34.9%	Shares	Defined	2025-08-13
2025-03-31	$6,194,814	269,809	+576.3%	Shares	Defined	2025-05-14
2024-12-31	$738,456	39,895	-59.6%	Shares	Defined	2025-02-12
2024-09-30	$1,966,331	98,761	-70.4%	Shares	Defined	2024-11-14
2024-06-30	$6,502,645	333,469	-34.7%	Shares	Defined	2024-08-14
2024-03-31	$17,115,652	510,915	-2.6%	Shares	Defined	2024-05-15
2023-12-31	$18,195,382	524,665	-7.9%	Shares	Defined	2024-02-14
2023-09-30	$16,574,085	569,752	+86.7%	Shares	Defined	2023-11-14
2023-06-30	$13,239,012	305,187	+60.0%	Shares	Defined	2023-08-14
2023-03-31	$6,937,993	190,709	+395.5%	Shares	Defined	2023-05-15
2022-12-31	$1,164,586	38,486	-61.8%	Shares	Defined	2023-02-14
2022-03-31	$3,532,642	100,875	+17.8%	Shares	Defined	2022-05-13
2021-12-31	$2,230,739	85,633	-37.1%	Shares	Defined	2022-02-14
2021-09-30	$3,029,566	136,038	-26.3%	Shares	Defined	2021-11-12
2021-06-30	$2,695,072	184,594	-15.4%	Shares	Defined	2021-08-13
2021-03-31	$3,716,321	218,094	-1.5%	Shares	Defined	2021-05-14
2020-12-31	$3,021,178	221,494	0.0%	Shares	Defined	2021-02-12
2020-09-30	$1,269,160	221,494	-18.9%	Shares	Defined	2020-11-12
2020-06-30	$1,536,956	272,994	0.0%	Shares	Defined	2020-08-12
2020-03-31	$1,452,328	272,994	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.