Skip to main content
Equibles

CITADEL ADVISORS LLC

Position in ATI — Ati Inc

CIK 1423053 MIAMI, FL
Back to ATI Full portfolio

Position in ATI

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$44,117,435
+$32,331,355 QoQ
Shares Held
303,296
+195.3% QoQ
Ownership
0.222%
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")%

Common Shares in ATI Over Time

Shares Held

Position Value (USD)

Derivatives in ATI

reported options exposure · as of Mar 31, 2026
CallValue
$27,666,492
CallShares
190,200
PutValue
$9,294,894
PutShares
63,900

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Metal Fabrication

Industrials · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $83,210,134 across 11 Metal Fabrication names. ATI ranks #1 (53.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ATI
Ati Inc
This page 		303,296 $44,117,435
2 CRS
Carpenter Technology Corp
 30,468 $12,008,962
3 IIIN
Insteel Industries Inc
 246,767 $8,293,838
4 MLI
Mueller Industries Inc
 142,900 $7,916,659
5 CMC
COMMERCIAL METALS Co
 88,270 $5,422,425
6 PRLB
Proto Labs Inc
 44,518 $2,538,416
7 WOR
Worthington Enterprises, Inc.
 24,498 $1,277,324
8 MEC
Mayville Engineering Company, Inc.
 56,786 $1,019,308

All Filings in ATI

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $9,294,894 63,900
2026-03-31 $44,117,435 303,296
2026-03-31 $27,666,492 190,200
2025-12-31 $15,458,172 134,700
2025-12-31 $15,205,700 132,500
2025-12-31 $11,786,080 102,702
2025-09-30 $9,183,530 112,903
2025-09-30 $20,757,968 255,200
2025-09-30 $13,608,182 167,300
2025-06-30 $51,154,290 592,475
2025-06-30 $17,103,954 198,100
2025-06-30 $22,733,322 263,300
2025-03-31 $4,859,602 93,400
2025-03-31 $7,367,448 141,600
2025-03-31 $55,484,687 1,066,398
2024-12-31 $1,100,800 20,000
2024-12-31 $2,586,880 47,000
2024-12-31 $21,506,879 390,750
2024-09-30 $4,442,824 66,400
2024-09-30 $7,922,144 118,400
2024-09-30 $16,976,136 253,716
2024-06-30 $46,463,051 837,927
2024-06-30 $3,243,825 58,500
2024-06-30 $8,572,570 154,600
2024-03-31 $6,043,177 118,100
2024-03-31 $2,890,490 56,488
2024-03-31 $1,376,473 26,900
2023-12-31 $4,205,975 92,500
2023-12-31 $1,682,390 37,000
2023-12-31 $11,802,011 259,556
2023-09-30 $3,745,719 91,026
2023-09-30 $7,345,275 178,500
2023-09-30 $6,106,660 148,400
2023-06-30 $6,019,703 136,100
2023-06-30 $3,489,392 78,892
2023-06-30 $6,731,806 152,200
2023-03-31 $21,452,033 543,640
2023-03-31 $5,323,154 134,900
2023-03-31 $6,274,140 159,000
2022-12-31 $4,174,428 139,800
2022-12-31 $6,052,622 202,700
2022-12-31 $13,121,498 439,434
2022-09-30 $22,037,256 828,157
2022-09-30 $6,939,888 260,800
2022-09-30 $1,923,903 72,300
2022-06-30 $12,978,855 571,504
2022-06-30 $5,232,384 230,400
2022-06-30 $681,300 30,000
2022-03-31 $3,768,336 140,400
2022-03-31 $14,355,480 534,854

Report a Problem

Category
Description
Email (optional, for follow-up)