Quick Takeaways
- ATI - ATI INC has 25 insiders with reported activity on this page.
- Net insider value flow over the last year: -$43,038,251.
- Recent transaction rows are available for direct filing-level review.
- Info
- Insider Trading
- Financials
- Holders
Insider Transactions Reported by 25 Insiders of ATI INC
- Symbol
- ATI on NYSE
- Location
- Dallas, TX
What Changed
- Buy value: $4,875,188; sell value: $47,913,439.
- Net share flow: -498,093.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Official SEC Source
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$43,038,251.
Buys
$4,875,188
Shares: 34,882
Insiders: 1
Sells
$47,913,440
Shares: 532,975
Insiders: 5
Net
-$43,038,251
Shares: -498,093
Insiders: -4
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 28,724 | 37,885 | $4,195,715 | $5,561,033 | -$1,365,319 |
| 3-6 | 6,158 | 179,783 | $679,474 | $17,961,246 | -$17,281,772 |
| 6-9 | 0 | 115,307 | $0 | $8,934,757 | -$8,934,757 |
| 9-12 | 0 | 200,000 | $0 | $15,456,403 | -$15,456,403 |
ATI INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Robert S. Wetherbee | Executive Chairman, Director | $39,545,655 | -$30,653,144 | -44% | Filing P/S | 17 Feb 2026 |
| Kimberly A. Fields | President, CEO and Director, Director | $38,474,744 | -$6,419,080 | -14% | Mixed | 05 Jan 2026 |
| Donald P. Newman | EVP and CFO | $22,208,825 | Mixed | 03 Jan 2025 | ||
| Timothy J. Harris | Senior VP and CDIO | $19,758,681 | -$4,105,354 | -17% | Mixed | 05 Jan 2026 |
| J. Brett Harvey | Director | $9,973,867 | Mixed | 20 May 2025 | ||
| Vaishali S. Bhatia | SVP, General Counsel and CCO | $9,554,591 | Mixed | 20 Mar 2026 | ||
| Carolyn Corvi | Director | $7,145,737 | Mixed | 20 May 2025 | ||
| Elizabeth C. Powers | Senior VP, CHRO | $7,112,012 | Mixed | 28 Feb 2022 | ||
| James Robert Foster | SVP, Finance and CFO | $7,021,065 | Mixed | 05 Jan 2026 | ||
| Kevin B. Kramer | Sr. VP, CCMO | $6,804,763 | Mixed | 14 Apr 2022 | ||
| Elliot S. Davis | Chief Legal & Compl. Officer | $6,087,277 | Filing P/S | 29 Feb 2024 | ||
| David J. Morehouse | Director | $5,898,163 | -$1,618,384 | -22% | Filing P/S | 09 Mar 2026 |
| M. Leroy Ball | Director | $4,207,009 | Mixed | 19 Nov 2025 | ||
| Herbert J. Carlisle | Director | $3,689,728 | Mixed | 20 May 2025 | ||
| Marianne Kah | Director | $3,434,457 | Mixed | 20 May 2025 | ||
| David P. Hess | Director | $3,330,013 | Mixed | 20 May 2025 | ||
| Karl D. Schwartz | VP, Controller & CAO | $2,666,630 | Mixed | 12 Sep 2022 | ||
| Tina K. Busch | Svp, Chro | $1,984,013 | -$242,289 | -11% | Filing P/S | 21 Nov 2025 |
| James C. Diggs | Director | $1,977,314 | Mixed | 08 Sep 2023 | ||
| Michael B. Miller | VP Chief Accounting Officer | $1,252,796 | Mixed | 02 Mar 2026 | ||
| Jimmy Williams Jr. | Svp, Cto | $648,512 | Mixed | 03 Jan 2025 | ||
| Netta Washington | Evp, Hpmc | $584,233 | Mixed | 01 May 2024 | ||
| Ruby Sharma | Director | $575,144 | Mixed | 20 May 2025 | ||
| Elizabeth H. Lund | Director | $62,172 | Mixed | 19 Nov 2025 | ||
| Jean Lydon-Rodgers | Director | $62,172 | Mixed | 19 Nov 2025 |
Top shareholders of ATI INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Capital International Investors |
13F
13D/G
|
Company |
4.5%
from 13D/G
|
17,095,803
|
$1,962,203,591 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
13D/G
|
Company |
10%
from 13D/G
|
14,666,770
|
$1,683,158,523 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
9.3%
|
12,726,524
|
$1,460,495,894 | — | 31 Dec 2025 | |
| Capital World Investors |
13F
13D/G
|
Company |
5.7%
from 13D/G
|
7,355,793
|
$844,150,805 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.1%
|
5,599,233
|
$642,567,979 | — | 31 Dec 2025 | |
| FMR LLC |
13F
13D/G
|
Company |
3.5%
from 13D/G
|
5,074,824
|
$582,386,731 | — | 31 Dec 2025 | |
| Capital Research Global Investors |
13F
|
Company |
2.6%
|
3,611,724
|
$414,481,446 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
2.5%
|
3,384,924
|
$388,453,915 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.8%
|
2,419,168
|
$277,682,512 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.6%
|
2,125,976
|
$243,988,688 | — | 31 Dec 2025 | |
| DENDUR CAPITAL LP |
13F
|
Company |
1.5%
|
2,039,291
|
$234,029,035 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
1.5%
|
2,022,621
|
$232,115,986 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.3%
|
1,732,195
|
$198,786,698 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
1.2%
|
1,590,017
|
$182,470,664 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.1%
|
1,487,892
|
$170,750,486 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.94%
|
1,283,539
|
$147,299,204 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
0.91%
|
1,244,248
|
$142,789,900 | — | 31 Dec 2025 | |
| FRONTIER CAPITAL MANAGEMENT CO LLC |
13F
|
Company |
0.9%
|
1,227,453
|
$140,862,463 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.87%
|
1,193,129
|
$136,923,485 | — | 31 Dec 2025 | |
| BOWEN HANES & CO INC |
13F
|
Company |
0.86%
|
1,177,705
|
$135,153,000 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.86%
|
1,174,117
|
$134,741,667 | — | 31 Dec 2025 | |
| Holocene Advisors, LP |
13F
|
Company |
0.78%
|
1,071,745
|
$122,993,456 | — | 31 Dec 2025 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.74%
|
1,019,840
|
$117,036,862 | — | 31 Dec 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.74%
|
1,007,959
|
$115,675,207 | — | 31 Dec 2025 | |
| LOOMIS SAYLES & CO L P |
13F
|
Company |
0.68%
|
935,673
|
$107,377,834 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.67%
|
912,874
|
$104,761,455 | — | 31 Dec 2025 | |
| Fisher Asset Management, LLC |
13F
|
Company |
0.66%
|
908,495
|
$104,258,885 | — | 31 Dec 2025 | |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC |
13F
|
Company |
0.63%
|
857,900
|
$98,452,604 | — | 31 Dec 2025 | |
| Neuberger Berman Group LLC |
13F
|
Company |
0.6%
|
822,714
|
$94,414,697 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.59%
|
803,317
|
$92,346,763 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.58%
|
799,074
|
$91,701,733 | — | 31 Dec 2025 | |
| PRUDENTIAL FINANCIAL INC |
13F
|
Company |
0.58%
|
796,436
|
$91,398,995 | — | 31 Dec 2025 | |
| Point72 Asset Management, L.P. |
13F
|
Company |
0.55%
|
760,177
|
$87,237,913 | — | 31 Dec 2025 | |
| Jain Global LLC |
13F
|
Company |
0.49%
|
665,276
|
$76,347,074 | — | 31 Dec 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.46%
|
628,285
|
$72,101,986 | — | 31 Dec 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.44%
|
603,707
|
$71,961,875 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.4%
|
547,541
|
$62,835,805 | — | 31 Dec 2025 | |
| FEDERATED HERMES, INC. |
13F
|
Company |
0.4%
|
545,854
|
$62,642,205 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.37%
|
506,881
|
$58,169,664 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
0.36%
|
498,177
|
$57,171,000 | — | 31 Dec 2025 | |
| Woodline Partners LP |
13F
|
Company |
0.34%
|
471,195
|
$54,074,338 | — | 31 Dec 2025 | |
| SCHRODER INVESTMENT MANAGEMENT GROUP |
13F
|
Company |
0.33%
|
453,545
|
$52,688,323 | — | 31 Dec 2025 | |
| Qube Research & Technologies Ltd |
13F
|
Company |
0.31%
|
430,227
|
$49,372,851 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.29%
|
392,682
|
$45,064,186 | — | 31 Dec 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.28%
|
389,986
|
$44,754,794 | — | 31 Dec 2025 | |
| GAMCO INVESTORS, INC. ET AL |
13F
|
Company |
0.28%
|
383,100
|
$43,964,556 | — | 31 Dec 2025 | |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. |
13F
|
Company |
0.28%
|
377,550
|
$43,327,639 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.28%
|
377,358
|
$43,305,604 | — | 31 Dec 2025 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.26%
|
363,271
|
$41,688,980 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.26%
|
362,387
|
$41,587,532 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for ATI INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Vaishali S. Bhatia | ATI | Common Stock, par value $0.10 per share | Tax liability | -5.67% | -3,509 | 58,420 | 20 Mar 2026 | Direct | ||
| David J. Morehouse | ATI | Common Stock, par value $0.10 per share | Sale | -14.8% | $1,019,464 | $154.25 | -6,609 | 38,168 | 09 Mar 2026 | Direct |
| Michael B. Miller | ATI | Common Stock, par value $0.10 per share | Tax liability | -5.13% | -413 | 7,639 | 02 Mar 2026 | Direct | ||
| Leroy M. Ball Jr. | ATI | Common Stock, par value $0.10 per share | Gift | -1.02% | -350 | 33,832 | 17 Feb 2026 | Direct | ||
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | 11.4% | $4,195,715 | $146.07 | 28,724 | 280,061 | 17 Feb 2026 | Direct |
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | -6.32% | $3,010,628 | $144.48 | -20,838 | 308,785 | 17 Feb 2026 | Direct |
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | -3.73% | $1,530,941 | $146.67 | -10,438 | 269,623 | 10 Feb 2026 | Direct |
| James Robert Foster | ATI | Common Stock, par value $0.10 per share | Tax liability | -29.4% | -23,544 | 56,561 | 05 Jan 2026 | Direct | ||
| James Robert Foster | ATI | Common Stock, par value $0.10 per share | Options Exercise | 129.1% | 42,265 | 75,014 | 05 Jan 2026 | Direct | ||
| James Robert Foster | ATI | Common Stock, par value $0.10 per share | Award | 18% | 9,644 | 63,078 | 05 Jan 2026 | Direct | ||
| James Robert Foster | ATI | Performance Stock Unit | Options Exercise | -50% | -25,641 | 25,641 | 05 Jan 2026 | Direct | ||
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Award | 63.2% | 185,276 | 478,551 | 05 Jan 2026 | Direct | ||
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Tax liability | -35% | -158,297 | 293,275 | 05 Jan 2026 | Direct | ||
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Options Exercise | 362,644 | 186,538 | 05 Jan 2026 | Direct | |||
| Robert S. Wetherbee | ATI | Performance Stock Unit | Options Exercise | -50% | -64,103 | 64,102 | 05 Jan 2026 | Direct | ||
| Michael B. Miller | ATI | Common Stock, par value $0.10 per share | Tax liability | -4.44% | -374 | 8,052 | 05 Jan 2026 | Direct | ||
| Michael B. Miller | ATI | Common Stock, par value $0.10 per share | Award | 11.3% | 854 | 8,426 | 05 Jan 2026 | Direct | ||
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Tax liability | -22.2% | -78,251 | 274,927 | 05 Jan 2026 | Direct | ||
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Options Exercise | 45.8% | 98,620 | 313,798 | 05 Jan 2026 | Direct | ||
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Award | 36.1% | 94,726 | 357,143 | 05 Jan 2026 | Direct | ||
| Kimberly A. Fields | ATI | Performance Stock Unit | Options Exercise | -50% | -35,898 | 35,897 | 05 Jan 2026 | Direct | ||
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Tax liability | -28% | -54,560 | 140,511 | 05 Jan 2026 | Direct | ||
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Options Exercise | 69.8% | 70,442 | 171,429 | 05 Jan 2026 | Direct | ||
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Award | 35.6% | 48,995 | 186,829 | 05 Jan 2026 | Direct | ||
| Timothy J. Harris | ATI | Performance Stock Unit | Options Exercise | -50% | -25,641 | 25,641 | 05 Jan 2026 | Direct | ||
| Vaishali S. Bhatia | ATI | Common Stock, par value $0.10 per share | Tax liability | -3.04% | -1,944 | 61,929 | 05 Jan 2026 | Direct | ||
| Vaishali S. Bhatia | ATI | Common Stock, par value $0.10 per share | Award | 5.19% | 3,152 | 63,873 | 05 Jan 2026 | Direct | ||
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | 5.12% | $679,474 | $110.34 | 6,158 | 126,518 | 18 Dec 2025 | Direct |
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | -28.9% | $5,897,039 | $109.48 | -53,862 | 132,676 | 18 Dec 2025 | Direct |
| Kimberly A. Fields | ATI | Performance Stock Unit | Award | 34,188 | 34,188 | 05 Dec 2025 | Direct | |||
| Vaishali S. Bhatia | ATI | Performance Stock Unit | Award | 6,837 | 6,837 | 05 Dec 2025 | Direct | |||
| Timothy J. Harris | ATI | Performance Stock Unit | Award | 6,837 | 6,837 | 05 Dec 2025 | Direct | |||
| Michael B. Miller | ATI | Performance Stock Unit | Award | 1,709 | 1,709 | 05 Dec 2025 | Direct | |||
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Sale | -9.68% | $1,031,851 | $97.88 | -10,542 | 98,310 | 25 Nov 2025 | Direct |
| Tina K. Busch | ATI | Common Stock, par value $0.10 per share | Sale | -10.9% | $242,289 | $93.26 | -2,598 | 21,274 | 21 Nov 2025 | Direct |
| Leroy M. Ball Jr. | ATI | Common Stock, par value $0.10 per share | Gift | -0.54% | -185 | 34,182 | 19 Nov 2025 | Direct | ||
| Jean Lydon-Rodgers | ATI | Common Stock, par value $0.10 per share | Award | 631 | 631 | 19 Nov 2025 | Direct | |||
| Elizabeth H. Lund | ATI | Common Stock, par value $0.10 per share | Award | 631 | 631 | 19 Nov 2025 | Direct | |||
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | -19.6% | $5,900,155 | $98.34 | -60,000 | 246,538 | 18 Nov 2025 | Direct |
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Sale | -8.83% | $1,030,691 | $97.77 | -10,542 | 108,852 | 18 Nov 2025 | Direct |
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Sale | -8.11% | $1,029,946 | $97.69 | -10,543 | 119,394 | 11 Nov 2025 | Direct |
| Timothy J. Harris | ATI | Common Stock, par value $0.10 per share | Sale | -7.5% | $1,012,866 | $96.07 | -10,543 | 129,937 | 04 Nov 2025 | Direct |
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Sale | -9.45% | $1,816,408 | $85.87 | -21,153 | 202,668 | 15 Oct 2025 | Direct |
| Tina K. Busch | ATI | Common Stock, par value $0.10 per share | Tax liability | -8.16% | -2,122 | 23,872 | 10 Oct 2025 | Direct | ||
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Sale | -8.64% | $1,735,263 | $82.03 | -21,154 | 223,821 | 06 Oct 2025 | Direct |
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Sale | -7.66% | $1,631,663 | $80.33 | -20,312 | 244,975 | 22 Sep 2025 | Direct |
| Kimberly A. Fields | ATI | Common Stock, par value $0.10 per share | Sale | -5.67% | $1,235,746 | $77.52 | -15,941 | 265,287 | 09 Sep 2025 | Direct |
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | -14% | $3,733,165 | $74.66 | -50,000 | 306,538 | 05 Aug 2025 | Direct |
| David J. Morehouse | ATI | Common Stock, par value $0.10 per share | Sale | -15% | $598,920 | $75.81 | -7,900 | 44,777 | 04 Aug 2025 | Direct |
| Robert S. Wetherbee | ATI | Common Stock, par value $0.10 per share | Sale | -12.3% | $4,196,522 | $83.93 | -50,000 | 356,538 | 12 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.