RHUMBLINE ADVISERS

Position in ATI — Ati Inc

CIK 1115418 BOSTON, MA

Position in ATI

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$51,546,805

+$11,662,197 QoQ

Shares Held

354,371

+2.0% QoQ

Ownership

0.260%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 50.818492483865775.ToString("F0")% Shared 0.ToString("F0")% None 49.18150751613422.ToString("F0")%

Industrials · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $175,630,081 across 12 Metal Fabrication names. ATI ranks #2 (29.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CRS	Carpenter Technology Corp	140,080	$55,212,532
2	ATI	Ati Inc This page	354,371	$51,546,805
3	CMC	COMMERCIAL METALS Co	351,694	$21,604,562
4	MLI	Mueller Industries Inc	310,286	$17,189,844
5	ESAB	ESAB Corp	150,549	$14,552,066
6	WOR	Worthington Enterprises, Inc.	95,622	$4,985,731
7	PRLB	Proto Labs Inc	65,114	$3,712,800
8	GPGI	GPGI, Inc.	184,785	$3,159,823

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$51,546,805	354,371	+2.0%	Shares	Sole	2026-05-12
2025-12-31	$39,884,608	347,548	-4.1%	Shares	Sole	2026-02-13
2025-09-30	$29,462,812	362,218	-2.1%	Shares	Sole	2025-11-06
2025-06-30	$31,946,836	370,012	+2.1%	Shares	Sole	2025-08-12
2025-03-31	$18,862,539	362,532	+19.1%	Shares	Sole	2025-05-29
2024-12-31	$16,748,176	304,291	+5.9%	Shares	Sole	2025-05-29
2024-09-30	$19,224,313	287,316	-3.2%	Shares	Sole	2024-11-12
2024-06-30	$16,460,554	296,854	-19.2%	Shares	Sole	2024-08-01
2024-03-31	$18,803,337	367,468	-1.2%	Shares	Sole	2024-05-09
2023-12-31	$16,908,110	371,852	-4.2%	Shares	Sole	2024-02-08
2023-09-30	$15,970,356	388,101	+0.8%	Shares	Sole	2023-11-09
2023-06-30	$17,023,242	384,880	-1.9%	Shares	Sole	2023-08-08
2023-03-31	$15,481,223	392,327	+4.5%	Shares	Sole	2023-05-11
2022-12-31	$11,212,011	375,486	+1.9%	Shares	Sole	2023-02-14
2022-09-30	$9,810,122	368,663	+7.0%	Shares	Sole	2022-11-10
2022-06-30	$7,827,364	344,666	-1.0%	Shares	Sole	2022-08-11
2022-03-31	$9,339,890	347,984	+4.4%	Shares	Sole	2022-05-12
2021-12-31	$5,307,222	333,159	-2.6%	Shares	Sole	2022-02-10
2021-09-30	$5,689,671	342,133	-12.9%	Shares	Sole	2021-11-12
2021-06-30	$8,188,066	392,713	-10.1%	Shares	Sole	2021-08-05
2021-03-31	$9,203,051	436,992	-0.6%	Shares	Sole	2021-05-06
2020-12-31	$7,375,697	439,815	+10.0%	Shares	Sole	2021-02-10
2020-09-30	$3,485,915	399,761	-15.0%	Shares	Sole	2020-11-12
2020-06-30	$4,790,349	470,103	+2.7%	Shares	Sole	2020-08-13
2020-03-31	$3,890,849	457,747	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.