ATI Inc. (ATI)
NYSE: ATI · Steel Pipe & Tubes · Dallas, TX · filing with the SEC since 1996
Grade6.3
◀ Past 6.8● Present 6.9▶ Future 5.2
Who owns ATI Inc.
As filed with the SECHolders of 5% or more
2
Blackrock, Inc. holds 11.9% of Common Stock, as its SCHEDULE 13G/A filed Oct 27, 2026 says.
Directors and officers
16
report now, of 35 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Oct 27, 2026 · Common Stock · 10.1% in Oct 3, 2025
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Capital International Investors
SCHEDULE 13G/A · filed Apr 7, 2026 · Common Stock · reported falling below 5%, from 12.8% in Nov 13, 2025
Capital World Investors
SCHEDULE 13G/A · filed May 14, 2026 · Common Stock · reported falling below 5%, from 5.7% in Nov 13, 2025
Fmr LLC
SCHEDULE 13G/A · filed May 12, 2025 · COMMON STOCK · reported falling below 5%, from 5.1% in Feb 12, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 9.85% in Apr 30, 2025
What ATI reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Shanghai STAL Precision Stainless Steel Co Ltd
An investee · investee · invested in, named in the 10-K filed Feb 20, 2026
6 subsidiaries in 1 country, from the list filed with the 10-K filed Feb 20, 2026.
Insider tradesForm 4
57sales
0purchases
53sales on a scheduled plan
5people selling
$86.2Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 35 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Fields Kimberly A | Chair, President and CEO | 34 | $43.9M | 34 | 0 | $0 |
| Wetherbee Robert S | Executive Chairman | 10 | $21.2M | 10 | 0 | $0 |
| Harris Timothy J | Senior VP and CDIO | 9 | $19.3M | 9 | 0 | $0 |
| Morehouse David J | director | 3 | $1.5M | 0 | 0 | $0 |
| Busch Tina Killough | SVP, CHRO | 1 | $200,000 | 0 | 0 | $0 |