CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in ATI — Ati Inc

CIK 1081019 WEST SACRAMENTO, CA

Position in ATI

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$22,947,915

+$7,980,687 QoQ

Shares Held

157,761

+21.0% QoQ

Ownership

0.116%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

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

Industrials · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $75,161,635 across 12 Metal Fabrication names. ATI ranks #1 (30.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ATI	Ati Inc This page	157,761	$22,947,915
2	CRS	Carpenter Technology Corp	57,662	$22,727,477
3	CMC	COMMERCIAL METALS Co	133,808	$8,219,825
4	MLI	Mueller Industries Inc	124,209	$6,881,178
5	ESAB	ESAB Corp	67,358	$6,510,824
6	GPGI	GPGI, Inc.	219,467	$3,752,885
7	WOR	Worthington Enterprises, Inc.	29,871	$1,557,473
8	PRLB	Proto Labs Inc	22,967	$1,309,578

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$22,947,915	157,761	+21.0%	Shares	Sole	2026-05-18
2025-12-31	$14,967,228	130,422	-2.7%	Shares	Sole	2026-02-17
2025-09-30	$10,907,205	134,094	+1.5%	Shares	Sole	2025-11-14
2025-06-30	$11,408,449	132,134	+0.8%	Shares	Sole	2025-08-14
2025-03-31	$6,821,497	131,107	+12.6%	Shares	Sole	2025-05-15
2024-12-31	$6,406,105	116,390	-1.1%	Shares	Sole	2025-03-18
2024-09-30	$7,875,574	117,704	-3.1%	Shares	Sole	2025-04-04
2024-06-30	$6,733,127	121,427	-5.0%	Shares	Sole	2025-04-08
2024-03-31	$6,537,581	127,762	-6.1%	Shares	Sole	2024-05-16
2023-12-31	$6,189,922	136,132	-4.2%	Shares	Sole	2024-02-13
2023-09-30	$5,849,678	142,155	-8.9%	Shares	Sole	2023-11-14
2023-06-30	$6,901,781	156,043	-2.4%	Shares	Sole	2023-08-21
2023-03-31	$6,308,864	159,880	-1.7%	Shares	Sole	2023-05-09
2022-12-31	$4,854,668	162,581	+4.3%	Shares	Sole	2023-02-14
2022-09-30	$4,146,716	155,833	-3.7%	Shares	Sole	2022-11-21
2022-06-30	$3,675,068	161,826	-0.6%	Shares	Sole	2022-08-15
2022-03-31	$4,369,122	162,784	-8.0%	Shares	Sole	2022-05-16
2021-12-31	$2,817,746	176,883	+2.3%	Shares	Sole	2022-02-15
2021-09-30	$2,875,193	172,892	-1.5%	Shares	Sole	2021-11-15
2021-06-30	$3,658,174	175,452	-8.3%	Shares	Sole	2021-08-16
2021-03-31	$4,030,062	191,361	-0.6%	Shares	Sole	2021-05-18
2020-12-31	$3,226,933	192,423	-0.1%	Shares	Sole	2021-02-16
2020-09-30	$1,680,204	192,684	0.0%	Shares	Sole	2020-11-17
2020-06-30	$1,963,449	192,684	+1.4%	Shares	Sole	2020-08-17
2020-03-31	$1,615,085	190,010	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.