StockCIK 1018963
ATI INC (ATI): Insider Trades and Fund Holdings
In the past 12 months, ATI INC insiders reported 0 open-market purchases worth $0 and 7 sales worth $21.5M; 6 of the sales were reported as made under a 10b5-1 trading plan.
0Insider buys, 12 months
$0Bought by insiders, 12 months
$21.5MSold by insiders, 12 months
3Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 23, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 23 | Timothy J. HarrisVP | ▼ SELL10b5-1 | $1.73M |
| Sep 16 | Timothy J. HarrisVP | ▼ SELL10b5-1 | $3.19M |
| Sep 10 | Timothy J. HarrisVP | ▼ SELL10b5-1 | $3.42M |
| Sep 4 | David J. MorehouseDirector | ▼ SELL | $501K |
| Sep 2 | Timothy J. HarrisVP | ▼ SELL10b5-1 | $3.47M |
| Aug 26 | Timothy J. HarrisVP | ▼ SELL10b5-1 | $3.41M |
| Aug 19 | Kimberly A. FieldsCEO | ▼ SELL10b5-1 | $5.74M |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Timothy J. Harris | VP | 0 | $0 | 5 | $15.2M |
| David J. Morehouse | Director | 0 | $0 | 1 | $501K |
| Kimberly A. Fields | CEO | 0 | $0 | 1 | $5.74M |
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Tracked funds that report ATI
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Viking Global Investors | 1,153,880 | $227.4M | ▼ −65.4% |
| Bridgewater Associates | 114,940 | $22.7M | ▲ +423.6% |
| Soros Fund Management | 73,339 | $14.5M | ▲ +38.8% |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →