ATI INC (ATI) Institutional Ownership Changes & 13F Activity

ATI INC (ATI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Invesco Ltd., Viking Global Investors, Qube Research & Technologies Ltd, D. E. Shaw & Co., Inc., and Ameriprise Financial Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Envestnet Asset Management IncBuy+175,631+81.4%391,409$77.15MQ2 2026Sep 23, 2026
Envestnet Portfolio Solutions, Inc.Sell-3,043-10.5%25,927$5.11MQ2 2026Sep 23, 2026
Qrg Capital Management, Inc.Buy+1,270—1,270$250.35KQ2 2026Sep 23, 2026
State Street CorpSell-143,714-2.7%5,237,299$1.03BQ2 2026Sep 22, 2026
Security National Bank Of Sioux City IowaBuy+600—600$118.26KQ2 2026Sep 18, 2026
Manufacturers Life Insurance Company, TheSell-5,279-7.6%64,289$12.67MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcBuy+425+7.8%5,890$1.16MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+135+28.4%610$120.23KQ2 2026Sep 04, 2026
Citadel Advisors LlcBuy+194,122+64.0%497,418$98.04MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+14,484+5.4%282,318$55.64MQ2 2026Sep 02, 2026
Brown, Lisle/Cummings, Inc.Buy+20+166.7%32$6.31KQ2 2026Sep 02, 2026
Corient Private Wealth LlcBuy+67,120+578.2%78,728$15.52MQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+639+0.4%158,400$31.22MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Buy+73,087+12.5%657,117$129.52MQ2 2026Aug 21, 2026
Mercer Global Advisors IncBuy+4,049+13.0%35,120$6.92MQ2 2026Aug 19, 2026
Beacon Pointe Advisors, LlcSell-1,972-54.0%1,680$331.13KQ2 2026Aug 18, 2026
Pin Oak Investment Advisors IncBuy+268—268$53.00Q2 2026Aug 18, 2026
Copia Wealth ManagementBuy+2—2$394.00Q2 2026Aug 18, 2026
Empowered Funds, LlcBuy+35,404+63.3%91,374$18.01MQ2 2026Aug 17, 2026
Capstone Investment Advisors, LlcSell-14,170-56.6%10,849$2.14MQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioBuy+212+0.5%40,142$7.91MQ2 2026Aug 17, 2026
United Capital Financial Advisors, LlcSell-102-5.7%1,687$332.51KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+26+83.9%57$11.23KQ2 2026Aug 17, 2026
Invesco Ltd.Buy+3,449,291—3,449,291$679.86MQ2 2026Aug 14, 2026
Viking Global InvestorsSell-2,178,963-65.4%1,153,880$227.43MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+1,285,210+149.6%2,144,028$422.59MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Sell-927,024-53.2%815,585$160.75MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+858,201—858,201$169.15MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+693,067+210.8%1,021,799$201.40MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Sell-692,231-35.8%1,240,348$244.47MQ2 2026Aug 14, 2026
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Frequently asked questions about ATI activity

  • Which institutional owners are buying ATI?

    Institutional owners buying ATI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ATI activity?

    "Buy" means an investor increased their reported position in ATI compared to the prior reporting period. This reflects growing exposure to ATI INC (ATI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ATI increasing?

    Institutional interest in ATI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.