These sales are routine and non-informative at 0.015% of market cap. No bearish read-through. Monitor for any upcoming 8-K or earnings filing that could provide context, but standalone this cluster is noise.
Price Chart
Executive Summary
Two ATI insiders, including the CEO, sold a combined $4.48M in shares over a week. The CEO's $1.07M sale at $232.43 and the CDIO's $3.41M sale at $206.92 represent 0.015% of ATI's $29.3B market cap — a trivial amount relative to company size. Insider sales at this scale are routine and carry no bearish signal per the academic literature, especially given the lack of any negative corporate event in the cross-filing context.
Key Financial Metrics
Key Facts
- CEO Fields sold 4,600 shares for $1.07M on 2026-08-17
- CDIO Harris sold 16,500 shares for $3.41M on 2026-08-24
- Total insider sales of $4.48M represent 0.015% of ATI's $29.3B market cap
- No open-market purchases in the cluster; all transactions are sales
- No negative corporate events (earnings miss, guidance cut, restructuring) accompany these sales
Financial Impact
Total insider sales of $4.48M, or 0.015% of market cap — immaterial
Risk Factors
- Insider sales could accelerate if the stock continues to rally
- No purchases to offset the selling signal
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-ATI-1787774492243 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 10, 2026 22d ago | Insider Cluster | $199.00 $183.64 | ▼ −7.72% | ▼ −7.22% | $192.42 (−3.31%) |
Sep 4, 2026 27d ago | Insider Cluster | $207.32 $186.69 | ▼ −9.95% | ▼ −8.83% | $192.42 (−7.19%) |
Aug 26, 2026 5w ago | Insider Cluster | $212.86 $201.69 | ▼ −5.25% | ▼ −5.13% | $192.42 (−9.60%) |
Aug 6, 2026 8w ago | 8-K | $223.43 $227.22 | ▲ +1.70% | ▲ +0.48% | $192.42 (−13.88%) |
Aug 3, 2026 8w ago | Institutional Cluster | $193.12 $228.19 | ▲ +18.16% | ▲ +16.13% | $192.42 (−0.36%) |
Jul 23, 2026 10w ago | Institutional Cluster | $199.84 $181.90 | ▼ −8.98% | ▼ −9.45% | $192.42 (−3.71%) |
Jun 3, 2026 17w ago | 8-K | $181.10 $199.50 | ▲ +10.16% | ▲ +12.71% | $192.42 (+6.25%) |
Jun 3, 2026 17w ago | 8-K | $179.94 $183.37 | ▲ +1.91% | ▲ +5.73% | $192.42 (+6.94%) |
Apr 30, 2026 22w ago | 8-K | $155.46 $165.08 | ▲ +6.19% | ▲ +4.46% | $192.42 (+23.77%) |
Mar 24, 2026 27w ago | DEFA14A | $149.59 $145.46 | ▼ −2.76% | ▼ −2.34% | $192.42 (+28.63%) |
US Market Status
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