Ati Inc
ATI- Exchange
- NYSE
- Industry
- Steel Pipe & Tubes
- SEC CIK
- 0001018963
In the last 90 days, Ati Inc insiders filed 0 open-market purchases and 7 sales; 799 institutions reported holding it in 13F filings for Q2 2026, worth $25.1B in total; 3 superinvestors hold it, including Viking Global Investors and Soros Fund Management.
Key figures
- Market capClose on Nov 10, 2026
- $24.8B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $21.5M in total
- 7
- 13F holdersQ2 2026, +125 vs. previous quarter
- 799
- 13F valueReported value at the end of Q2 2026
- $25.1B
- Superinvestors holdingAt the end of Q2 2026
- 3
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $4.59B
- +5.2% year over year
- Net income, FY2025
- $404.3M
- +9.9% year over year
- Free cash flow, FY2025
- $333.7M
- +98.5% year over year
- Revenue, Q3 FY2026
- $1.42B
- +26.5% year over year
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 4.46M
- Shares sold short
- Change
- −273.4K
- −5.8% vs. previous
- Days to cover
- 2.16
- At average daily volume
Superinvestors holding ATI, Q2 2026
Go to the superinvestors tab3 superinvestors report holding Ati Inc on Form 13F. Percentages are the stock's share of each portfolio.
Viking Global Investors
Andreas Halvorsen
0.6%
Ati Inc's share of the portfolio
- Shares
- 1,153,880
- Value
- $227.4M
| Superinvestor | Weight | Value |
|---|---|---|
| ARK Invest | <0.1% | $96.0K |
Latest insider trades
See all insider tradesOpen-market purchases and sales by Ati Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 23, 2026 (view filing)10:32 AM ET | Sep 21 | 2 days | Harris Timothy JSenior VP and CDIO | SSaleCommon Stock, par value $0.10 per share | −9.00K | $191.82 | −$1.73M | −9.3%88.2K after | 10b5-1 |
| Sep 16, 2026 (view filing)8:20 PM ET | Sep 14 | 2 days | Harris Timothy JSenior VP and CDIO | SSaleCommon Stock, par value $0.10 per share | −16.5K | $193.06 | −$3.19M | −14.5%97.2K after | 10b5-1 |
| Sep 10, 2026 (view filing)4:12 PM ET | Sep 8 | 2 days | Harris Timothy JSenior VP and CDIO | SSaleCommon Stock, par value $0.10 per share | −16.5K | $207.54 | −$3.42M | −12.7%113.7K after | 10b5-1 |
| Sep 4, 2026 (view filing)4:24 PM ET | Sep 2 | 2 days | Morehouse David JDirector | SSaleCommon Stock, par value $0.10 per share | −2.48K | $201.61 | −$501.0K | −6.5%35.8K after | |
| Sep 2, 2026 (view filing)5:41 PM ET | Aug 31 | 2 days | Harris Timothy JSenior VP and CDIO | SSaleCommon Stock, par value $0.10 per share | −16.5K | $210.01 | −$3.47M | −11.2%130.2K after | 10b5-1 |
| Aug 26, 2026 (view filing)3:57 PM ET | Aug 24 | 2 days | Harris Timothy JSenior VP and CDIO | SSaleCommon Stock, par value $0.10 per share | −16.5K | $206.92 | −$3.41M | −10.1%146.7K after | 10b5-1 |
| Aug 19, 2026 (view filing)5:05 PM ET | Aug 17 | 2 days | Fields Kimberly AChair, President and CEO | SSaleCommon Stock, par value $0.10 per share | −24.8K | $231.19 | −$5.74M | −19.8%100.7K after | 5 lots10b5-1 |
| Jul 30, 2026 (view filing)4:43 PM ET | Jul 28 | 2 days | Fields Kimberly AChair, President and CEO | SSaleCommon Stock, par value $0.10 per share | −31.8K | $190.99 | −$6.07M | −20.2%125.6K after | 10b5-1 |
| Jul 9, 2026 (view filing)4:33 PM ET | Jul 7 | 2 days | Fields Kimberly AChair, President and CEO | SSaleCommon Stock, par value $0.10 per share | −40.0K | $182.91 | −$7.32M | −20.3%157.3K after | 10 lots10b5-1 |
| Jun 24, 2026 (view filing) | Jun 22-24 | 2 days | Fields Kimberly AChair, President and CEO | SSaleCommon Stock, par value $0.10 per share | −20.7K | $200.64 | −$4.15M | −9.5%197.3K after | 3 lots10b5-1 |
Top 10 13F holders, Q2 2026
See all 799 holdersThe largest institutional positions in Ati Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 18,708,922 | $3.69B | 0.05% | +2,267,269+13.8% | Added |
| Vanguard Portfolio Management LLC | 6,219,875 | $1.23B | 0.06% | +398,367+6.8% | Added |
| Vanguard Capital Management LLC | 6,162,418 | $1.21B | 0.03% | +38,290+0.6% | Added |
| Capital World Investors | 5,249,249 | $1.03B | 0.12% | −463,680−8.1% | Reduced |
| State Street Corp | 5,237,299 | $1.03B | 0.03% | −143,714−2.7% | Reduced |
| Capital Research Global Investors | 5,093,768 | $1.00B | 0.14% | −1,066,339−17.3% | Reduced |
| FMR LLC | 4,989,171 | $983.4M | 0.04% | −258,004−4.9% | Reduced |
| Capital International Investors | 3,719,485 | $733.2M | 0.15% | −2,164,464−36.8% | Reduced |
| Invesco Ltd. | 3,449,291 | $679.9M | 0.05% | −406,352−10.5% | Reduced |
| Geode Capital Management, LLC | 2,777,512 | $547.6M | 0.03% | −169,813−5.8% | Reduced |
Holders of 5% or more of ATI
See all 2 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Ati Inc.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 11.90%16.2M shares | +1.80 ppfrom 10.10% | Oct 23, 20246 filings | Oct 27, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.23%7.15M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |