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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| ATI | WETHERBEE ROBERT S | Executive Chairman | Feb 17 '26 | Sale | 145.40 | 49,562 | 7,206,343 | 280,061 | Feb 19 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Feb 10 '26 | Sale | 146.67 | 10,438 | 1,530,941 | 269,623 | Feb 19 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Jan 05 '26 | Option Exercise | 0.00 | 426,747 | 0 | 186,538 | Jan 07 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Dec 18 '25 | Sale | 109.57 | 60,020 | 6,576,513 | 126,518 | Dec 19 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Nov 18 '25 | Sale | 98.34 | 60,000 | 5,900,154 | 246,538 | Nov 20 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Aug 05 '25 | Sale | 74.66 | 50,000 | 3,733,165 | 306,538 | Aug 06 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Jun 12 '25 | Sale | 83.93 | 50,000 | 4,196,521 | 356,538 | Jun 16 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Jun 03 '25 | Sale | 81.64 | 50,000 | 4,082,000 | 406,538 | Jun 05 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | May 20 '25 | Sale | 75.31 | 45,359 | 3,415,986 | 461,179 | May 22 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | May 06 '25 | Sale | 68.85 | 54,641 | 3,761,895 | 456,536 | May 22 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Dec 04 '24 | Sale | 58.99 | 25,000 | 1,474,750 | 436,443 | Dec 06 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Nov 15 '24 | Sale | 56.35 | 25,000 | 1,408,750 | 461,443 | Nov 18 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Oct 15 '24 | Sale | 62.23 | 25,000 | 1,555,750 | 486,443 | Oct 16 12:00 AM |
| ATI | WETHERBEE ROBERT S | Executive Chairman | Sep 16 '24 | Sale | 61.61 | 25,000 | 1,540,250 | 511,443 | Sep 17 12:00 AM |
| ATI | WETHERBEE ROBERT S | Board Chair, President and CEO | Nov 01 '22 | Sale | 30.23 | 15,000 | 453,450 | 333,753 | Nov 03 12:00 AM |
| ATI | WETHERBEE ROBERT S | Board Chair, President and CEO | Oct 03 '22 | Sale | 27.13 | 15,000 | 406,950 | 343,753 | Oct 05 12:00 AM |
| ATI | WETHERBEE ROBERT S | Board Chair, President and CEO | Sep 01 '22 | Sale | 29.09 | 15,000 | 436,350 | 363,753 | Sep 02 12:00 AM |
| ATI | WETHERBEE ROBERT S | President and CEO | Mar 16 '20 | Buy | 8.70 | 2,500 | 21,759 | 192,140 | Mar 17 12:00 AM |
| ATI | WETHERBEE ROBERT S | President and CEO | Aug 13 '19 | Buy | 18.36 | 5,000 | 91,800 | 113,335 | Aug 14 12:00 AM |