ATI Inc. (ATI) Insider Trading
Over the last 3 months, ATI insiders made 0 open-market buys and 16 sales, a net sale of -$21.2M (SEC Form 4). Over the last 6 months, 445 institutions increased and 380 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
16
Net (3m)
-$21.2M
Insider trades by month Buys Sells
Nov
Dec
Feb
Mar
May
Jun
Context3-month price +35.5%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 24, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 13,269 | $202.48 |
| Jun 24, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 3,641 | $197.48 |
| Jun 24, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 3,783 | $197.21 |
| Jun 4, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 13,164 | $179.71 |
| Jun 4, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 13,865 | $179.05 |
| Jun 4, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 2,000 | $181.90 |
| Jun 4, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 1,896 | $180.80 |
| Jun 4, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 25,823 | $177.97 |
| Jun 4, 2026 | Fields Kimberly Adirector, officer: Chair, President and CEO | Sell | 3,001 | $182.75 |
| May 21, 2026 | Lydon-Rodgers Jeandirector | Grant | 905 | — |
| May 21, 2026 | BALL M LEROYdirector | Grant | 905 | — |
| May 21, 2026 | Hess David Pdirector | Grant | 905 | — |
| May 21, 2026 | Lund Elizabeth Hefleydirector | Grant | 905 | — |
| May 21, 2026 | Kah Mariannedirector | Grant | 905 | — |
| May 21, 2026 | Morehouse David Jdirector | Grant | 1,743 | — |
| May 21, 2026 | Corvi Carolyndirector | Grant | 905 | — |
| May 21, 2026 | Sharma Rubydirector | Grant | 905 | — |
| May 21, 2026 | Carlisle Herbert Jdirector | Grant | 905 | — |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 6,420 | $158.38 |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 8,780 | $161.12 |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 1,300 | $154.02 |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 11,982 | $160.60 |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 5,568 | $156.29 |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 2,600 | $159.38 |
| May 12, 2026 | Fields Kimberly Adirector, officer: President, CEO and Director | Sell | 3,350 | $157.51 |
| Mar 24, 2026 | Bhatia Vaishali S.officer: SVP, General Counsel and CCO | Tax | 3,509 | $143.95 |
| Mar 11, 2026 | Morehouse David Jdirector | Sell | 5,324 | $154.53 |
| Mar 11, 2026 | Morehouse David Jdirector | Sell | 1,285 | $153.11 |
| Mar 3, 2026 | Miller Michael Benjaminofficer: VP Chief Accounting Officer | Tax | 413 | $164.00 |
| Feb 19, 2026 | WETHERBEE ROBERT Sdirector, officer: Executive Chairman | Sell | 28,724 | $146.07 |
Source: ATI SEC Form 4 filings, latest Jun 24, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ATI positions over the last 6 months (SEC Form 13F).
Increased
445
New positions
283
Reduced
380
Sold out
88
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| CAPITAL INTERNATIONAL INVESTORS | Reduced | 17.1M | Feb 11, 2026 |
| BLACKROCK, INC. | Increased | 16.4M | May 13, 2026 |
| BLACKROCK, INC. | Reduced | 14.7M | Feb 12, 2026 |
| VANGUARD GROUP INC | Reduced | 12.7M | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 12.2M | May 15, 2026 |
| CAPITAL WORLD INVESTORS | Reduced | 7.4M | Feb 11, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 6.2M | May 13, 2026 |
| CAPITAL INTERNATIONAL INVESTORS | Reduced | 5.9M | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 5.8M | May 8, 2026 |
| CAPITAL WORLD INVESTORS | Reduced | 5.7M | May 13, 2026 |
| STATE STREET CORP | Reduced | 5.6M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 5.4M | May 15, 2026 |
| FMR LLC | Increased | 5.2M | May 15, 2026 |
| FMR LLC | Increased | 5.1M | Feb 17, 2026 |
| INVESCO LTD. | Increased | 3.9M | May 12, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.