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Livermore
ZHEN

Ati Inc

ATI
Exchange
NYSE
Industry
Steel Pipe & Tubes
SEC CIK
0001018963

In the last 90 days, Ati Inc insiders filed 0 open-market purchases and 9 sales; 795 institutions reported holding it in 13F filings for Q2 2026, worth $25.1B in total; 3 superinvestors hold it, including Viking Global Investors and Soros Fund Management.

13F holders, Q4 2025

Institutional positions in Ati Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
570
+109 vs. Q3 2025
Shares held
128.3M
−445.7K (−0.3%) vs. Q3 2025
Total value
$14.7B
+$4.26B (+40.7%) vs. Q3 2025
New holders
145
169 more added
Sold out
36
181 more reduced

9 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ATI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 570 institutions
Q1 2021: 234 institutionsQ2 2021: 237 institutionsQ3 2021: 236 institutionsQ4 2021: 241 institutionsQ1 2022: 284 institutionsQ2 2022: 266 institutionsQ3 2022: 290 institutionsQ4 2022: 304 institutionsQ1 2023: 339 institutionsQ2 2023: 329 institutionsQ3 2023: 338 institutionsQ4 2023: 349 institutionsQ1 2024: 345 institutionsQ2 2024: 403 institutionsQ3 2024: 421 institutionsQ4 2024: 403 institutionsQ1 2025: 426 institutionsQ2 2025: 473 institutionsQ3 2025: 470 institutionsQ4 2025: 570 institutionsQ1 2026: 678 institutionsQ2 2026: 795 institutions
Value heldQ4 2025: $14.7B
Q1 2021: $2.72BQ2 2021: $2.77BQ3 2021: $2.21BQ4 2021: $2.10BQ1 2022: $3.51BQ2 2022: $3.02BQ3 2022: $3.49BQ4 2022: $3.95BQ1 2023: $5.29BQ2 2023: $5.95BQ3 2023: $5.48BQ4 2023: $6.10BQ1 2024: $6.89BQ2 2024: $7.33BQ3 2024: $8.89BQ4 2024: $7.51BQ1 2025: $6.97BQ2 2025: $11.6BQ3 2025: $10.5BQ4 2025: $14.7BQ1 2026: $18.5BQ2 2026: $25.1B
Institutions holding ATI and their total value by quarter
QuarterHoldersValue
Q2 2026795$25.1B
Q1 2026678$18.5B
Q4 2025570$14.7B
Q3 2025470$10.5B
Q2 2025473$11.6B
Q1 2025426$6.97B
Q4 2024403$7.51B
Q3 2024421$8.89B
Q2 2024403$7.33B
Q1 2024345$6.89B
Q4 2023349$6.10B
Q3 2023338$5.48B
Q2 2023329$5.95B
Q1 2023339$5.29B
Q4 2022304$3.95B
Q3 2022290$3.49B
Q2 2022266$3.02B
Q1 2022284$3.51B
Q4 2021241$2.10B
Q3 2021236$2.21B
Q2 2021237$2.77B
Q1 2021234$2.72B

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Ati Inc; share changes are against Q3 2025.

Institutions holding ATI in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Leonteq Securities AG204$23.4K0.00%−91−30.8%Reduced
Contravisory Investment Management, Inc.185$21.2K0.00%00.0%Unchanged
Ancora Advisors, LLC178$20.4K0.00%+178New
SJS Investment Consulting Inc.172$19.7K0.00%+159+1,223.1%Added
GHP Investment Advisors, Inc.151$17.3K0.00%00.0%Unchanged
Global X Japan Co., Ltd.136$15.6K0.00%00.0%Unchanged
McGuire Capital Advisors Inc136$15.6K0.01%+136New
Blue Bell Private Wealth Management, LLC133$15.3K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.123$14.1K0.00%00.0%Unchanged
TFC Financial Management118$13.5K0.00%00.0%Unchanged
Hollencrest Capital Management118$13.5K0.00%00.0%Unchanged
Zions Bancorporation, National Association112$12.9K0.00%+112New
Private Wealth Management Group, LLC102$11.7K0.00%00.0%Unchanged
GWM Advisors LLC100$11.5K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.91$10.4K0.00%−28−23.5%Reduced
Bare Financial Services, Inc88$10.1K0.00%+6+7.3%Added
Larson Financial Group LLC80$9.18K0.00%+34+73.9%Added
Moisand Fitzgerald Tamayo, LLC70$8.03K0.00%00.0%Unchanged
Quent Capital, LLC69$7.92K0.00%+67+3,350.0%Added
Central Trust Co66$7.58K0.00%+3+4.8%Added
Adirondack Trust Co66$7.57K0.00%00.0%Unchanged
Signature Equity Partners, LLC59$6.77K0.00%+59New
SBI Securities Co., Ltd.56$6.43K0.00%+37+194.7%Added
Salomon & Ludwin, LLC53$6.36K0.00%00.0%Unchanged
SageView Advisory Group, LLC55$6.31K0.00%+55New
Atlantic Union Bankshares Corp53$6.08K0.00%+53New
Rossby Financial, LCC51$5.85K0.00%+51New
Caldwell Sutter Capital, Inc.50$5.74K0.00%00.0%Unchanged
Financial Consulate, Inc50$5.74K0.00%+50New
Lodestone Wealth Management LLC49$5.62K0.00%+49New
Elyxium Wealth, LLC47$5.39K0.00%+47New
Flagship Harbor Advisors, LLC45$5.16K0.00%+45New
Reyes Financial Architecture, Inc.38$4.36K0.00%+38New
MCF Advisors LLC36$4.13K0.00%00.0%Unchanged
Capital Advisors, Ltd. LLC38$4.00K0.00%00.0%Unchanged
Pinnacle Bancorp, Inc.34$3.90K0.00%00.0%Unchanged
Bell Investment Advisors, Inc33$3.79K0.00%+12+57.1%Added
Wolff Wiese Magana LLC30$3.44K0.00%00.0%Unchanged
Fortitude Family Office, LLC29$3.33K0.00%00.0%Unchanged
Cornerstone Financial Management LLC27$3.10K0.00%+27New
DiNuzzo Private Wealth, Inc.24$2.75K0.00%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC23$2.64K0.00%00.0%Unchanged
Financial Network Wealth Advisors LLC19$2.18K0.00%00.0%Unchanged
T. Rowe Price Investment Management, Inc.14$2.00K0.00%+14New
Kayne Anderson Rudnick Investment Management LLC15$1.72K0.00%00.0%Unchanged
Cromwell Holdings LLC14$1.61K0.00%00.0%Unchanged
Rialto Wealth Management, LLC12$1.38K0.00%+2+20.0%Added
First Horizon Corp12$1.38K0.00%−74−86.0%Reduced
DecisionPoint Financial, LLC11$1.26K0.00%00.0%Unchanged
South State Corp.11$1.26K0.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC11$1.26K0.00%+5+83.3%Added
Morse Asset Management, Inc10$1.15K0.00%+10New
Harvest Fund Management Co., Ltd6$1.00K0.00%00.0%Unchanged
HFM Investment Advisors, LLC8$9190.00%+1+14.3%Added
Stone House Investment Management, LLC7$8030.00%+7New
Rakuten Securities, Inc.5$5740.00%−80−94.1%Reduced
Bogart Wealth, LLC5$5740.00%−2−28.6%Reduced
Ameriflex Group, Inc.5$5740.00%+5New
AdvisorNet Financial, Inc4$4590.00%00.0%Unchanged
Optima Capital LLC4$4590.00%+4New
Valued Wealth Advisors LLC3$3450.00%00.0%Unchanged
Kilter Group LLC3$3450.00%+3New
Murphy & Mullick Capital Management Corp3$3440.00%+3New
Dunhill Financial, LLC2$2510.00%+2New
Principia Wealth Advisory, LLC2$2300.00%+1+100.0%Added
Transamerica Financial Advisors, Inc.2$2300.00%+2New
Sunbelt Securities, Inc.2$2300.00%+2New
MV Capital Management, Inc.1$1150.00%00.0%Unchanged
American Capital Advisory, LLC1$1150.00%00.0%Unchanged
ROSS\JOHNSON & Associates LLC1$1150.00%00.0%Unchanged
Davidson Kempner Capital Management LP0$00.00%−530,000−100.0%Sold out
Rokos Capital Management LLP0$00.00%−527,256−100.0%Sold out
Renaissance Technologies LLC0$00.00%−259,992−100.0%Sold out
Macquarie Group Ltd0$00.00%−236,788−100.0%Sold out
Moore Capital Management, LP0$00.00%−211,002−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−181,797−100.0%Sold out
Bridgewater Associates, LP0$00.00%−136,458−100.0%Sold out
Kinetic Partners Management, LP0$00.00%−132,800−100.0%Sold out
Bayberry Capital Partners LP0$00.00%−124,100−100.0%Sold out
Discovery Capital Management, LLC0$00.00%−105,100−100.0%Sold out
Van Eck Associates Corp0$00.00%−50,925−100.0%Sold out
Magnetar Financial LLC0$00.00%−45,664−100.0%Sold out
Cinctive Capital Management LP0$00.00%−38,328−100.0%Sold out
BI Asset Management Fondsmaeglerselskab A/S0$00.00%−34,944−100.0%Sold out
IMC-Chicago, LLC0$00.00%−22,509−100.0%Sold out
First Financial Bankshares Inc0$00.00%−19,534−100.0%Sold out
CenterBook Partners LP0$00.00%−16,858−100.0%Sold out
Yaupon Capital Management LP0$00.00%−15,844−100.0%Sold out
Fund 1 Investments, LLC0$00.00%−12,813−100.0%Sold out
Friedenthal Financial0$00.00%−12,204−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−10,241−100.0%Sold out
Oak Thistle LLC0$00.00%−7,325−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−2,689−100.0%Sold out
Optiver Holding B.V.0$00.00%−864−100.0%Sold out
Ameritas Advisory Services, LLC0$00.00%−617−100.0%Sold out
Quarry LP0$00.00%−472−100.0%Sold out
Ci Investments Inc.0$00.00%−348−100.0%Sold out
Wealthspire Advisors, LLC0$00.00%−264−100.0%Sold out
Principal Securities, Inc.0$00.00%−217−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−179−100.0%Sold out