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CASTLEARK MANAGEMENT LLC

Position in ATI — Ati Inc

CIK 1106832 CHICAGO, IL

Position in ATI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$951,993
-$645,328 QoQ
Shares Held
4,830
-84.3% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#410
of 787 holders
Holding Since
Mar 2022
10 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ATI Over Time

Shares Held

Position Value (USD)

Position in Metal Fabrication

Industrials · as of Jun 30, 2026

CASTLEARK MANAGEMENT LLC holds $2,481,756 across 2 Metal Fabrication names. ATI ranks #2 (38.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 ATI
Ati Inc
This page
4,830 $951,993

All Filings in ATI

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10 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $951,993 4,830
2025-03-31 $1,597,321 30,700
2023-12-31 $7,936,333 174,540
2023-09-30 $8,505,705 206,700
2023-06-30 $10,979,212 248,230
2023-03-31 $10,681,032 270,680
2022-12-31 $8,082,504 270,680
2022-09-30 $7,093,161 266,560
2022-06-30 $6,194,152 272,750
2022-03-31 $7,642,958 284,760