FRONTIER CAPITAL MANAGEMENT CO LLC

Position in RYZ — Ryerson Holding Corp

CIK 351173 Boston, MA

Position in RYZ

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$34,103,553

+$24,670,868 QoQ

Shares Held

1,517,062

+304.6% QoQ

Ownership

2.92%

of shares outstanding

% of Portfolio

0.35%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2024

6 quarters on record

Voting authority Sole 52.020154746477075.ToString("F0")% Shared 0.ToString("F0")% None 47.97984525352293.ToString("F0")%

Industrials · as of Mar 31, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $205,482,527 across 4 Metal Fabrication names. RYZ ranks #3 (16.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ATI	Ati Inc	694,422	$101,010,624
2	CRS	Carpenter Technology Corp	99,134	$39,073,666
3	RYZ	Ryerson Holding Corp This page	1,517,062	$34,103,553
4	MLI	Mueller Industries Inc	282,443	$31,294,684

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$34,103,553	1,517,062	+304.6%	Shares	Sole	2026-05-15
2025-12-31	$9,432,685	374,908	+43.9%	Shares	Sole	2026-02-17
2025-09-30	$5,955,258	260,510	-57.4%	Shares	Sole	2025-11-14
2025-06-30	$13,197,367	611,839	+2.6%	Shares	Sole	2025-08-14
2025-03-31	$13,696,925	596,556	+76.5%	Shares	Sole	2025-05-15
2024-12-31	$6,255,306	337,942	—	Shares	Sole	2025-02-14
No filing history on record for this holder in this stock.