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ATI INC (ATI) Stock Ownership

USA - New York Stock Exchange - NYSE:ATI - US01741R1023 - Common Stock

123.55 USD
+0.44 (+0.36%)
Last: 1/23/2026, 8:04:00 PM
123 USD
-0.55 (-0.45%)
After Hours: 1/23/2026, 8:04:00 PM
ATI Ownership Chart.ATI Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ATI Ownership.InsiderInstitutionalPublic



Shares Outstanding135.86M
Float134.76M
Float Short Interest Percentage1.66%
Owners (insider)0.45%
Owners (institutional)97.46%
Owners (insider) change1.44%
Owners (institutional) change0.41%
ATI Institutional Ownership HistoryATI Institutional Ownership HistoryATI Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M
ATI Historical Insider Transactions ChartATI Historical Insider Buy and Sell Transactions ChartATI Historical Insider Transactions Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 0 200K 400K
Date Name Type Shares Price Amount
Jan 5, 2026 Harris Timothy J Option Excercise 54560 121.08 $ 6,606,124.80
Jan 5, 2026 Bhatia Vaishali S. Grant 3152 0.00 $ 0.00
Jan 5, 2026 Bhatia Vaishali S. Option Excercise 1944 121.08 $ 235,379.52
Jan 5, 2026 WETHERBEE ROBERT S Option Excercise 362644 0.00 $ 0.00
Jan 5, 2026 WETHERBEE ROBERT S Option Excercise 158297 121.08 $ 19,166,600.76
Jan 5, 2026 WETHERBEE ROBERT S Grant 185276 0.00 $ 0.00
Jan 5, 2026 Miller Michael Benjamin Grant 854 0.00 $ 0.00
Jan 5, 2026 Miller Michael Benjamin Option Excercise 374 121.08 $ 45,283.92
Jan 5, 2026 Fields Kimberly A Grant 94726 0.00 $ 0.00
Jan 5, 2026 Fields Kimberly A Option Excercise 98620 0.00 $ 0.00
Jan 5, 2026 Fields Kimberly A Option Excercise 78251 121.08 $ 9,474,631.08
Jan 5, 2026 Harris Timothy J Grant 48995 0.00 $ 0.00
Jan 5, 2026 Harris Timothy J Option Excercise 70442 0.00 $ 0.00
Dec 18, 2025 WETHERBEE ROBERT S Open Market Sale 60020 109.57 $ 6,576,513.09
Nov 25, 2025 Harris Timothy J Open Market Sale 10542 97.88 $ 1,031,850.96
Nov 21, 2025 Busch Tina Killough Open Market Sale 2598 93.26 $ 242,289.48
Nov 19, 2025 BALL M LEROY Other Disposition 185 0.00 $ 0.00
Nov 19, 2025 Lydon-Rodgers Jean Grant 631 0.00 $ 0.00
Nov 19, 2025 Lund Elizabeth Hefley Grant 631 0.00 $ 0.00
Nov 18, 2025 WETHERBEE ROBERT S Open Market Sale 60000 98.34 $ 5,900,154.91
Nov 18, 2025 Harris Timothy J Open Market Sale 10542 97.77 $ 1,030,691.34
Nov 11, 2025 Harris Timothy J Open Market Sale 10543 97.69 $ 1,029,945.67
Nov 4, 2025 Harris Timothy J Open Market Sale 10543 96.07 $ 1,012,866.01
Oct 15, 2025 Fields Kimberly A Open Market Sale 21153 85.87 $ 1,816,408.11
Oct 10, 2025 Busch Tina Killough Option Excercise 2122 81.21 $ 172,327.62
Oct 6, 2025 Fields Kimberly A Open Market Sale 21154 82.03 $ 1,735,262.62
Sep 22, 2025 Fields Kimberly A Open Market Sale 20312 80.33 $ 1,631,662.96
Sep 9, 2025 Fields Kimberly A Open Market Sale 15941 77.52 $ 1,235,746.32
Aug 5, 2025 WETHERBEE ROBERT S Open Market Sale 50000 74.66 $ 3,733,165.26
Aug 4, 2025 Morehouse David J Open Market Sale 7900 75.81 $ 598,920.00
Jun 12, 2025 WETHERBEE ROBERT S Open Market Sale 50000 83.93 $ 4,196,521.95
Jun 3, 2025 WETHERBEE ROBERT S Open Market Sale 50000 81.64 $ 4,082,000.00
May 20, 2025 HARVEY J BRETT Grant 4039 0.00 $ 0.00
May 20, 2025 Corvi Carolyn Grant 1655 0.00 $ 0.00
May 20, 2025 Carlisle Herbert J Grant 1655 0.00 $ 0.00
May 20, 2025 BALL M LEROY Grant 1655 0.00 $ 0.00
May 20, 2025 WETHERBEE ROBERT S Open Market Sale 45359 75.31 $ 3,415,986.29
May 20, 2025 Sharma Ruby Grant 1655 0.00 $ 0.00
May 20, 2025 Morehouse David J Grant 3311 0.00 $ 0.00
May 20, 2025 Kah Marianne Grant 1655 0.00 $ 0.00
May 20, 2025 Hess David P Grant 3509 0.00 $ 0.00
May 6, 2025 WETHERBEE ROBERT S Open Market Sale 50000 68.18 $ 3,409,132.80
Apr 1, 2025 Morehouse David J Open Market Sale 17000 52.03 $ 884,510.00
Mar 20, 2025 Bhatia Vaishali S. Option Excercise 3509 52.19 $ 183,134.71
Feb 6, 2025 Busch Tina Killough Open Market Sale 9900 66.41 $ 657,459.00