Insider trading

Period: 120 months Stock: ATI Role: CEO × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

17 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

17 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

17 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

17 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
17 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
17 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

17 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
17 Aug 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan 5×
$5.74M 24,845 at 231.19
19.8%
Planned (10b5-1)
28 Jul 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan
$6.07M 31,757 at 190.99
20.2%
Planned (10b5-1)
7 Jul 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan 10×
$7.32M 40,000 at 182.91
20.3%
Planned (10b5-1)
24 Jun 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan
$746.05K 3,783 at 197.21
1.9%
Planned (10b5-1)
23 Jun 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan
$719.02K 3,641 at 197.48
1.8%
Planned (10b5-1)
22 Jun 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan
$2.69M 13,269 at 202.48
6.1%
Planned (10b5-1)
2 Jun 2026
Fields Kimberly A Chair, President and CEO
Sold on a plan 6×
$10.70M 59,749 at 179.07
21.5%
Planned (10b5-1)
11 May 2026
Fields Kimberly A President, CEO and Director
Sold on a plan 7×
$6.37M 40,000 at 159.21
12.6%
Planned (10b5-1)
15 Oct 2025
Fields Kimberly A President, CEO and Director
Sold on a plan
$1.82M 21,153 at 85.87
9.5%
Planned (10b5-1)
6 Oct 2025
Fields Kimberly A President, CEO and Director
Sold on a plan
$1.74M 21,154 at 82.03
8.6%
Planned (10b5-1)
22 Sep 2025
Fields Kimberly A President, CEO and Director
Sold on a plan
$1.63M 20,312 at 80.33
7.7%
Planned (10b5-1)
9 Sep 2025
Fields Kimberly A President & CEO
Sold on a plan
$1.24M 15,941 at 77.52
5.7%
Planned (10b5-1)
1 Nov 2022
WETHERBEE ROBERT S Board Chair, President and CEO
Sold, plan not stated
$453.45K 15,000 at 30.23
4.3%
3 Oct 2022
WETHERBEE ROBERT S Board Chair, President and CEO
Sold, plan not stated
$406.95K 15,000 at 27.13
4.2%
1 Sep 2022
WETHERBEE ROBERT S Board Chair, President and CEO
Sold, plan not stated
$436.35K 15,000 at 29.09
4.0%
16 Mar 2020
WETHERBEE ROBERT S President and CEO
Bought
$21.76K 2,500 at 8.70
1.3%
First buy on file
13 Aug 2019
WETHERBEE ROBERT S President and CEO
Bought
$91.80K 5,000 at 18.36
4.6%
First buy on file
Showing 1–17 of 17.