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WELLINGTON MANAGEMENT GROUP LLP

Position in ATI — Ati Inc

CIK 902219 Boston, MA

Position in ATI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$16,044,136
+$5,026,269 QoQ
Shares Held
81,401
+7.5% QoQ
Ownership
0.060%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#137
of 787 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 77% None 23%

Common Shares in ATI Over Time

Shares Held

Position Value (USD)

Position in Metal Fabrication

Industrials · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $397,557,003 across 6 Metal Fabrication names. ATI ranks #5 (4.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 ATI
Ati Inc
This page
81,401 $16,044,136

All Filings in ATI

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $16,044,136 81,401
2026-03-31 $11,017,867 75,745
2025-12-31 $43,305,602 377,358
2025-09-30 $37,196,780 457,300
2025-06-30 $40,352,638 467,369
2025-03-31 $26,961,580 518,193
2024-12-31 $24,835,422 451,225
2024-09-30 $37,517,172 560,711
2024-06-30 $27,660,565 498,838
2024-03-31 $20,755,113 405,611
2023-12-31 $14,436,132 317,487
2023-09-30 $12,255,209 297,818
2023-06-30 $13,474,624 304,649
2023-03-31 $12,872,009 326,204
2022-12-31 $9,723,071 325,622
2022-09-30 $8,112,616 304,871
2022-06-30 $6,461,810 284,536
2022-03-31 $7,702,274 286,970
2021-12-31 $9,347,452 586,783
2021-09-30 $9,218,024 554,301
2021-06-30 $15,773,794 756,537
2021-03-31 $16,037,968 761,537
2020-12-31 $13,074,779 779,653
2020-09-30 $3,887,470 445,811
2020-06-30 $5,157,902 506,173
2020-03-31 $4,339,861 510,572