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Wednesday, October 28, 2026

Data from SEC filings, checked daily

Public filings, plainly told

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Insider tradingForm 4

ATI INC (ATI) Insider Trading

7 open-market trades reported since Aug 19, 2026: 0 purchases worth $0 and 7 sales worth $21.5M.

By insider

Insider	Role	Buys	Bought	Sells	Sold	Latest
Timothy J. Harris	VP	0	$0	5	$15.2M	Sep 23, 2026
David J. Morehouse	Director	0	$0	1	$501K	Sep 4, 2026
Kimberly A. Fields	CEO	0	$0	1	$5.74M	Aug 19, 2026

All trades

ATI insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	3 mo. after	Filing
Sep 23	Sep 21	Timothy J. HarrisVP	VP	▼ SELL10b5-1	9,000	191.82	$1.73M	−9.3%		Form 4 ↗
Sep 16	Sep 14	Timothy J. HarrisVP	VP	▼ SELL10b5-1	16,500	193.06	$3.19M	−15%		Form 4 ↗
Sep 10	Sep 8	Timothy J. HarrisVP	VP	▼ SELL10b5-1	16,500	207.54	$3.42M	−13%		Form 4 ↗
Sep 4	Sep 2	David J. MorehouseDirector	Director	▼ SELL	2,485	201.61	$501K	−6.5%		Form 4 ↗
Sep 2	Aug 31	Timothy J. HarrisVP	VP	▼ SELL10b5-1	16,500	210.01	$3.47M	−11%		Form 4 ↗
Aug 26	Aug 24	Timothy J. HarrisVP	VP	▼ SELL10b5-1	16,500	206.92	$3.41M	−10%		Form 4 ↗
Aug 19	Aug 17	Kimberly A. FieldsCEO	CEO	▼ SELL10b5-1	24,845	231.19	$5.74M	−20%		Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings