Allegheny Technologies Inc

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Allegheny Technologies Inc
TickerATI
CIK #0001018963
CUSIP01741R102
SectorManufacturing - Steel Pipe & Tubes
Address1000 Six Ppg Place, Pittsburgh, PA 15222
Source [EDGAR]
CIK Filing 2011 - 2026
[0001018963] 10-K
[0001018963] 10-Q
[0001018963] 3
[0001018963] 4
[0001018963] 5
[0001018963] 8-K
[0001018963] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Capital Management LLC ATI Inc [2026-04-29] 0.0
Capital World Investors ATI Inc [2025-11-13] 0.0
FMR LLC ATI Inc [2024-11-12] 0.0
AllianceBernstein LP ATI Inc [2023-02-14] 5.4
AllianceBernstein LP ATI Inc [2023-02-13] 5.4
BlackRock Inc ATI Inc [2023-01-20] 16.1
Capital International Investors Allegheny Technologies Inc [2021-02-16] 0.0
Capital International Investors Allegheny Technologies Inc [2021-02-16] 0.0
State Street Corp Allegheny Technologies Inc [2021-02-05] 5.27
D E Shaw & Co LP Allegheny Technologies Inc [2020-09-18] 5.0
D E Shaw & Co LP Allegheny Technologies Inc [2020-06-15] 5.0
Capital World Investors Allegheny Technologies Inc [2020-02-14] 6.1
Dimensional Fund Advisors LP Allegheny Technologies Inc [2020-02-12] 5.25
Capital International Investors Allegheny Technologies Inc [2019-09-10] 10.6
Capital Research Global Investors Allegheny Technologies Inc [2019-02-14] 7.0
Frontier Capital Management Co LLC Allegheny Technologies Inc [2018-02-07] 6.223
Iridian Asset Management LLC/CT Allegheny Technologies Inc [2017-06-06] 10.1
Platinum Investment Management Ltd Allegheny Technologies Inc [2017-02-15] 0.0
State Street Corp Allegheny Technologies Inc [2017-02-09] 5.11
WS Management LLLP Allegheny Technologies Inc [2016-11-04] 5.0
SASCO Capital Inc / CT/ Allegheny Technologies Inc [2016-02-12] 5.5
Platinum Investment Management Ltd Allegheny Technologies Inc [2016-02-11] 0.0
BlackRock Inc Allegheny Technologies Inc [2016-01-28] 7.3
Franklin Resources Inc Allegheny Technologies Inc [2015-02-09] 5.5
BlackRock Inc Allegheny Technologies Inc [2015-02-03] 5.0
State Street Corp Allegheny Technologies Inc [2014-02-05] 4.5
State Street Corp Allegheny Technologies Inc [2013-02-11] 5.3
BlackRock Inc Allegheny Technologies Inc [2013-01-30] 5.06
Vanguard Group Inc Allegheny Technologies Inc [2012-02-07] 5.11
Form 3/4/5 Filer 2011 - 2026
Foster James Robert
ATI Inc
Fields Kimberly A
Corvi Carolyn
Morehouse David J
Carlisle Herbert J
Kah Marianne
Sharma Ruby
Lund Elizabeth Hefley
Lydon-Rodgers Jean
Hess David P
Ball M Leroy
Bhatia Vaishali S
Miller Michael Benjamin
Wetherbee Robert S
Harris Timothy J
Busch Tina Killough
Harvey J Brett
Williams Jimmy Jr
Newman Donald P
Washington Netta
Davis Elliot S
Diggs James C
Schwartz Karl D
Kramer Kevin B
Powers Elizabeth C
Pipski John R
Creel Diane C
ROHR James E
Sims John D
DeCourcy Patrick J
Harshman Richard J
Jeremiah Barabara S
Turner John D
Thomas Louis J
Dalton Hunter R
Dunlap Terry L
Joyce Michael
Vroman Gary J
Reid Dale G
Hogan David M
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Bhatia Vaishali S
Common Stock, par value $0.10 per share
2026-03-20 Tax withheld 3,509 $143.95 505,121
Morehouse David J
Common Stock, par value $0.10 per share
2026-03-09 Sell 1,285 $153.11 196,746
Morehouse David J
Common Stock, par value $0.10 per share
2026-03-09 Sell 5,324 $154.53 822,718
Miller Michael Benjamin
Common Stock, par value $0.10 per share
2026-03-02 Tax withheld 413 $164.00 67,732
Wetherbee Robert S
Common Stock, par value $0.10 per share
2026-02-17 Sell 12,435 $144.01 1,790,764
Ball M Leroy
Common Stock, par value $0.10 per share
2026-02-17 Gift 350 $0.00
Wetherbee Robert S
Common Stock, par value $0.10 per share
2026-02-17 Sell 28,724 $146.07 4,195,715
Wetherbee Robert S
Common Stock, par value $0.10 per share
2026-02-17 Sell 8,403 $145.17 1,219,864
Wetherbee Robert S
Common Stock, par value $0.10 per share
2026-02-10 Sell 10,438 $146.67 1,530,941
Fields Kimberly A
Common Stock, par value $0.10 per share
2026-01-05 Tax withheld 32,352 $121.08 3,917,180
Fields Kimberly A
Common Stock, par value $0.10 per share
2026-01-05 Grant 12,510 $0.00
Wetherbee Robert S
Common Stock, par value $0.10 per share
2026-01-05 Option exercise 362,644 $0.00
Fields Kimberly A
Common Stock, par value $0.10 per share
2026-01-05 Tax withheld 7,028 $121.08 850,950
Foster James Robert
Common Stock, par value $0.10 per share
2026-01-05 Option exercise 42,265 $0.00
Miller Michael Benjamin
Common Stock, par value $0.10 per share
2026-01-05 Grant 854 $0.00
Foster James Robert
Common Stock, par value $0.10 per share
2026-01-05 Tax withheld 18,453 $121.08 2,234,289
Foster James Robert
Common Stock, par value $0.10 per share
2026-01-05 Tax withheld 2,835 $121.08 343,262
Wetherbee Robert S
Common Stock, par value $0.10 per share
2026-01-05 Tax withheld 69,369 $121.08 8,399,199
Fields Kimberly A
Performance Stock Unit · derivative
2026-01-05 Option exercise 35,898 $0.00
Foster James Robert
Performance Stock Unit · derivative
2026-01-05 Option exercise 25,641 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 674 126,641,708
2025-12-31 573 128,348,076
2025-09-30 475 130,003,249
2025-06-30 478 135,431,538
2025-03-31 430 131,823,102
2024-12-31 406 133,705,149
2024-09-30 424 130,817,772
2024-06-30 406 129,025,758
2024-03-31 350 134,702,992
2023-12-31 353 133,649,678
2023-09-30 342 131,006,338
2023-06-30 336 133,280,164
Form 13F Holdings
Firm Period DFND Voting Shares
Assenagon Asset Management SA [2026-06-30] SOLE 657,117 657,117
Vaughan Nelson Investment Management LP [2026-06-30] DFND 263,105 269,170
Tran Capital Management LP [2026-06-30] SOLE 68,292 89,993
TEMA ETFS LLC [2026-06-30] SOLE 72,045 72,045
Signature Estate & Investment Advisors LLC [2026-06-30] DFND 0 68,076
Louisiana State Employees Retirement System [2026-06-30] SOLE 39,400 39,400
Yousif Capital Management LLC [2026-06-30] SOLE 11,713 38,125
Hennion & Walsh Asset Management Inc [2026-06-30] SOLE 36,829 36,829
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 1,288 36,312
Sequoia Financial Advisors LLC [2026-06-30] SOLE 0 33,554
Spire Wealth Management [2026-06-30] SOLE 0 33,435
Commonwealth of Pennsylvania Public School Empls Retrmt SYS [2026-06-30] SOLE 32,671 32,671
Farmers & Merchants Investments Inc [2026-06-30] SOLE 31,003 31,003
Covea Finance [2026-06-30] SOLE 31,000 31,000
Envestnet Portfolio Solutions Inc [2026-06-30] SOLE 25,927 25,927
Register Financial Advisors LLC [2026-06-30] SOLE 0 25,853
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 20,971 20,971
Graphene Investments SAS [2026-06-30] SOLE 16,800 16,800
Steel Peak Wealth Management LLC [2026-06-30] SOLE 0 15,540
Signature Estate & Investment Advisors LLC [2026-06-30] SOLE 0 15,182
Alaska Retirement Management Board [2026-06-30] SOLE 13,372 13,372
Fruth Investment Management [2026-06-30] SOLE 2,375 12,050
Crossmark Global Holdings Inc [2026-06-30] SOLE 10,607 10,607
PVG Asset Management Corp [2026-06-30] SOLE 115 10,475
Waldron Private Wealth LLC [2026-06-30] SOLE 0 9,903
First Citizens Bank & Trust Co [2026-06-30] SOLE 7,061 7,061
Fragasso Financial Advisors Inc [2026-06-30] SOLE 0 6,653
Curated Wealth Partners LLC [2026-06-30] OTR 0 6,453
Central Pacific Bank - Trust Division [2026-06-30] DFND 0 6,308
Arista Wealth Management LLC [2026-06-30] SOLE 0 5,753
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