ATI
ATI (ATI)
NYSE
$209.00+$1.99 (+0.96%)
Price as of Aug 21, 2026 7:44 PM EDT
  • $28.2B
    Market Cap
  • 180.84%
    1-Year Change
  • Metal Fabrication
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
13.71%
18.7M
+2.3M (+12.12%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
13.07%
17.8M
+2.0M (+11.09%)
Dec 31, 2024
BLACKROCK INC.
11.39%
15.5M
-4.5M (-29.19%)
Jun 30, 2024
VANGUARD GROUP INC
9.33%
12.7M
-327,723 (-2.58%)
Dec 31, 2025
BLACKROCK FUND ADVISORS
4.93%
6.7M
+876,830 (+13.03%)
Dec 31, 2016
N/A
4.56%
6.2M
+398,367 (+6.40%)
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
4.56%
6.2M
+398,367 (+6.40%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions2.5B (54.25%)
  • Mutual Funds2.1B (45.61%)
  • Insiders6.6M (0.14%)
  • Other0 (0.00%)

Insider Transactions

  • 0.14% (6.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 5
    Number of InsiderSelling (last 12 months)
  • $898.4M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Fields Kimberly A
Chair, President and CEO
Sell
Aug 17, 2026
$228,320.00
1,000
$228.32
124,564
Fields Kimberly A
Chair, President and CEO
Sell
Aug 17, 2026
$459,120.00
2,000
$229.56
122,564
Fields Kimberly A
Chair, President and CEO
Sell
Aug 17, 2026
$1.9M
8,131
$230.66
114,433
Fields Kimberly A
Chair, President and CEO
Sell
Aug 17, 2026
$2.1M
9,116
$231.72
105,317
Fields Kimberly A
Chair, President and CEO
Sell
Aug 17, 2026
$1.1M
4,598
$232.43
100,719
Fields Kimberly A
Chair, President and CEO
Sell
Jul 28, 2026
$6.1M
31,757
$190.99
125,564
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$358,500.00
2,000
$179.25
195,321
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$360,000.00
2,000
$180.00
193,321
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$36,170.00
200
$180.85
193,121
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$398,992.00
2,200
$181.36
190,921
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$2.2M
11,826
$182.66
179,095
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$2.9M
15,908
$183.50
163,187
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$899,210.52
4,878
$184.34
158,309
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$71,818.80
388
$185.10
157,921
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$37,272.00
200
$186.36
157,721
Fields Kimberly A
Chair, President and CEO
Sell
Jul 07, 2026
$75,000.00
400
$187.50
157,321
Foster James Robert
SVP, Finance and CFO
Exempt
Jul 01, 2026
$31,592.66
163
$193.82
57,824
Fields Kimberly A
Chair, President and CEO
Sell
Jun 24, 2026
$746,045.43
3,783
$197.21
197,321
Fields Kimberly A
Chair, President and CEO
Sell
Jun 23, 2026
$719,024.68
3,641
$197.48
201,104
Fields Kimberly A
Chair, President and CEO
Sell
Jun 22, 2026
$2.7M
13,269
$202.48
204,745
Bhatia Vaishali S.
SVP, General Counsel and CCO
In Kind
Mar 20, 2026
$505,120.55
3,509
$143.95
58,420
Morehouse David J
Sell
Mar 09, 2026
$196,746.35
1,285
$153.11
43,492
Morehouse David J
Sell
Mar 09, 2026
$822,717.72
5,324
$154.53
38,168
BALL M LEROY
Gift
Feb 17, 2026
$0.00
350
$0.00
33,832
WETHERBEE ROBERT S
Executive Chairman
Sell
Feb 17, 2026
$1.8M
12,435
$144.01
317,188
WETHERBEE ROBERT S
Executive Chairman
Sell
Feb 17, 2026
$1.2M
8,403
$145.17
308,785
WETHERBEE ROBERT S
Executive Chairman
Sell
Feb 17, 2026
$4.2M
28,724
$146.07
280,061
WETHERBEE ROBERT S
Executive Chairman
Sell
Feb 10, 2026
$1.5M
10,438
$146.67
269,623
Fields Kimberly A
President, CEO and Director
Exempt
Jan 05, 2026
$0.00
35,898
$0.00
35,897
Bhatia Vaishali S.
SVP, General Counsel and CCO
Award
Jan 05, 2026
$0.00
3,152
$0.00
63,873