Over the last 12 months, Ati insiders reported no purchases and 9 sales totaling $28.2M across SEC Form 4 filings. 100% of the activity was filed under pre-arranged 10b5-1 trading plans.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jul 28, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 31,757 | $190.99 | $6.1M | -20.2% | plan |
| Jul 7, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 40,000 | $182.91 | $7.3M | -20.3% | plan · 10 tranches |
| Jun 24, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 20,693 | $200.64 | $4.2M | -9.5% | plan · 3 tranches |
| Jun 2, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 3,001 | $182.75 | $548K | -1.4% | plan |
| Jun 2, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 2,000 | $181.9 | $364K | -0.9% | plan |
| Jun 2, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 1,896 | $180.8 | $343K | -0.8% | plan |
| Jun 2, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 13,164 | $179.71 | $2.4M | -5.5% | plan |
| Jun 2, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 13,865 | $179.05 | $2.5M | -5.5% | plan |
| Jun 2, 2026 | Fields Kimberly AChair, President and CEO · O·D | ▼ Sale | 25,823 | $177.97 | $4.6M | -9.3% | plan |
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $ATI feed.