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ATI stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+82.8% to $175.79
ATI (ATI) stock rose 83% over the last 252 sessions, to $175.79. On the way it reported 4 quarters, its insiders filed 1 open-market trade and 13 Form 144 notices of planned sales, and the company filed 3 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 6.8% | +5.7% (+6.1% vs SPY) | +8.0% (+8.7% vs SPY) | — |
| Sep 21, 2026 | Form 144 | Form 144: Timothy J. Harris plans to sell $1.7M | −1.3% (−2.8% vs SPY) | −3.2% (−4.5% vs SPY) | −1.2% (−1.8% vs SPY) |
| Sep 14, 2026 | Form 144 | Form 144: Timothy J. Harris plans to sell $3.2M | −5.5% (−5.0% vs SPY) | −3.7% (−3.6% vs SPY) | −5.6% (−7.6% vs SPY) |
| Sep 8, 2026 | Form 144 | Form 144: Timothy J. Harris plans to sell $3.4M | −1.6% (−1.0% vs SPY) | −11.3% (−10.1% vs SPY) | −7.9% (−9.3% vs SPY) |
| Sep 2, 2026 | Form 144 | Form 144: David J Morehouse plans to sell $501K | +0.4% (−0.1% vs SPY) | +2.7% (+2.7% vs SPY) | −5.0% (−5.5% vs SPY) |
| Sep 2, 2026 | Insider sale | Morehouse David J sold $501K | +0.4% (−0.1% vs SPY) | +2.7% (+2.7% vs SPY) | −5.0% (−5.5% vs SPY) |
| Aug 31, 2026 | Form 144 | Form 144: Timothy J. Harris plans to sell $3.5M | −3.2% (−2.9% vs SPY) | −0.1% (−0.2% vs SPY) | −10.9% (−10.5% vs SPY) |
| Aug 24, 2026 | Form 144 | Form 144: Timothy J Harris plans to sell $3.4M | +1.3% (+1.6% vs SPY) | +1.8% (+1.3% vs SPY) | −10.4% (−11.6% vs SPY) |
| Aug 17, 2026 | Form 144 | Form 144: Kimberly A. Fields plans to sell $8.0M | +1.4% (+1.9% vs SPY) | −9.9% (−8.5% vs SPY) | −20.2% (−17.7% vs SPY) |
| Aug 10, 2026 | Form 144 | Form 144: Robert S Wetherbee plans to sell $10.0M | +0.2% (+0.2% vs SPY) | +0.3% (−0.1% vs SPY) | −9.4% (−8.5% vs SPY) |
| Aug 6, 2026 | Earnings | Earnings: beat the EPS estimate by 18.3% | +8.6% (+8.7% vs SPY) | +11.6% (+11.3% vs SPY) | −0.3% (−0.7% vs SPY) |
| Jul 28, 2026 | Form 144 | Form 144: Kimberly A. Fields plans to sell $6.1M | −3.0% (−3.2% vs SPY) | +0.2% (−2.2% vs SPY) | +11.1% (+7.5% vs SPY) |
| Jul 7, 2026 | Form 144 | Form 144: Kimberly A. Fields plans to sell $7.5M | −4.7% (−4.2% vs SPY) | −4.4% (−4.1% vs SPY) | +4.2% (+1.5% vs SPY) |
| Jun 24, 2026 | Form 144 | Form 144: Kimberly A. Fields plans to sell $746K | −1.0% (−1.0% vs SPY) | −1.3% (−3.0% vs SPY) | +0.1% (−0.5% vs SPY) |
| Jun 23, 2026 | Form 144 | Form 144: Kimberly A. Fields plans to sell $719K | −2.2% (−0.8% vs SPY) | −3.2% (−2.7% vs SPY) | −4.2% (−4.6% vs SPY) |
| Jun 22, 2026 | Form 144 | Form 144: Kimberly A. Fields plans to sell $2.7M | +1.4% (+1.7% vs SPY) | −2.0% (+0.4% vs SPY) | −2.0% (−2.2% vs SPY) |
| Jun 8, 2026 | 8-K | Material definitive agreement | +3.8% (+4.1% vs SPY) | +8.3% (+6.2% vs SPY) | +4.5% (+2.6% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 13.5% | +6.1% (+5.1% vs SPY) | +12.1% (+9.0% vs SPY) | +18.0% (+11.9% vs SPY) |
| Feb 3, 2026 | Earnings | Earnings: beat the EPS estimate by 7.9% | +5.3% (+6.1% vs SPY) | +10.8% (+11.0% vs SPY) | +28.4% (+29.9% vs SPY) |
| Dec 8, 2025 | 8-K | Directors and officers: departures, appointments, pay | −0.8% (−0.5% vs SPY) | +8.2% (+8.8% vs SPY) | +18.5% (+17.7% vs SPY) |
| Nov 18, 2025 | 8-K | Directors and officers: departures, appointments, pay | −0.6% (+0.3% vs SPY) | −1.1% (−1.6% vs SPY) | +8.9% (+8.0% vs SPY) |
Insiders’ record here
In the year on the chart, ATI's insiders reported 0 open-market buys ($0) and 1 sale ($501K).
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → ATI: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.