ATI at a glance
Ati Inc (ATI, SEC CIK 1018963) filed its latest 10-K annual report on February 20, 2026, a 10-Q quarterly report on August 6, 2026, an 8-K current report on August 6, 2026 and Form 4 insider filings as recently as September 23, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended December 28, 2025 (FY2025), Ati Inc (ATI) reported revenue of $4.6 billion (up 5.2% from FY2024) and net income of $404.3 million. Diluted EPS was $2.85.
- As of June 30, 2026, 41 institutional investment managers tracked by SignalX reported holding Ati Inc (ATI) shares worth $12.3 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by Harris Timothy J on September 21, 2026 of 9,000 shares at $191.82 per share.
- In the last 90 days, ATI insiders reported 0 open-market purchases ($0) and 12 open-market sales ($27.5M) on Form 4, a net sale of $27.5M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $4.6B
- +5.2% vs prior year
- Insiders · 90 days
- 0 buys · 12 sells
- Net −$27.5M
- 13F holders
- 41 funds
- $12.3B · +1 vs prior quarter
- Latest 10-Q
- Aug 6, 2026
- Quarterly report
SignalX for ATI
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- Fund moves. Which tracked funds opened, added or cut ATI, by share count.
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Harris Timothy J | Sell | Sep 21, 2026 | 9,000 | $191.82 |
| Harris Timothy J | Sell | Sep 14, 2026 | 16,500 | $193.06 |
| Harris Timothy J | Sell | Sep 8, 2026 | 16,500 | $207.54 |
| Morehouse David J | Sell | Sep 2, 2026 | 2,485 | $201.61 |
| Harris Timothy J | Sell | Aug 31, 2026 | 16,500 | $210.01 |
| Harris Timothy J | Sell | Aug 24, 2026 | 16,500 | $206.92 |
| Fields Kimberly A | Sell | Aug 17, 2026 | 4,598 | $232.43 |
| Fields Kimberly A | Sell | Aug 17, 2026 | 2,000 | $229.56 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $4.4B | $4.6B |
| Gross Profit | $802.6M | $898.2M | $1.0B |
| Operating Income | - | $608.9M | $640.9M |
| Net Income | $410.8M | $367.8M | $404.3M |
| Gross Margin | - | 20.6% | 22.0% |
| Op. Margin | - | 14.0% | 14.0% |
| Net Margin | - | 8.4% | 8.8% |
| Balance Sheet | |||
| Total Assets | $5.0B | $5.2B | $5.1B |
| Equity | - | $1.9B | $1.8B |
| ROE | - | 19.9% | 22.4% |
| Per Share | |||
| EPS | $2.81 | $2.55 | $2.85 |
| Cash Flow | |||
| Operating CF | - | $407.2M | $614.3M |
Source: XBRL data in Ati Inc (ATI)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate ATI share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 41 | $12.30B |
| Q1 2026 | 40 | $9.01B |
| Q4 2025 | 34 | $6.48B |
| Q3 2025 | 36 | $4.73B |
| Q2 2025 | 36 | $5.05B |
| Q1 2025 | 32 | $2.45B |
| Q4 2024 | 28 | $2.50B |
| Q3 2024 | 24 | $1.56B |
- BlackRock+2.27M (+14%)
- T. Rowe Price Group+693.1K (+211%)
- Two Sigma Investments+618.9K (+3482%)
- Bank of America Corp+402.1K (+29%)
- Vanguard Portfolio Management LLC+398.4K (+7%)
- Viking Global Investors−2.18M (-65%)
- D.E. Shaw & Co−927.0K (-53%)
- PNC Financial Services−796.5K (-96%)
- Prudential Financial−628.7K (-78%)
- Invesco Ltd−406.4K (-11%)
- Blackstone Group+2.0K
Source: 13F-HR filings on SEC EDGAR (aggregated from 271 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
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ATI SEC filings: frequently asked questions
Are ATI insiders buying or selling?
In the last 90 days, Ati Inc (ATI) officers, directors and 10% owners reported no open-market purchases and 12 open-market sales worth $27.5 million by 3 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold ATI stock?
As of June 30, 2026, the largest Ati Inc (ATI) holders among the 13F filers tracked by SignalX were BlackRock ($3.7 billion), Vanguard Portfolio Management LLC ($1.2 billion), Vanguard Capital Management LLC ($1.2 billion), State Street Corp ($1.0 billion), FMR LLC (Fidelity) ($983.4 million). 13F-HR reports are filed up to 45 days after each quarter ends.
What was ATI's revenue in fiscal year 2025?
For the fiscal year ended December 28, 2025 (FY2025), Ati Inc (ATI) reported revenue of $4.6 billion (up 5.2% from FY2024) and net income of $404.3 million. Diluted EPS was $2.85. The figures come from the XBRL data in the 10-K.
What are the latest ATI SEC filings?
Ati Inc (ATI) filed its latest 10-K annual report on February 20, 2026, a 10-Q quarterly report on August 6, 2026, an 8-K current report on August 6, 2026 and a Form 4 insider filing on September 23, 2026.
What is ATI's SEC CIK number?
Ati Inc (ATI)'s SEC Central Index Key (CIK) is 1018963. EDGAR lists every ATI filing under that number.
Ask anything about ATI
The research agent reads ATI's filings, financials, insider trades and 13F holders, then answers with sources.