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. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Viking Global Investors, Sequoia Financial Advisors, ARK Invest, Renaissance Technologies LLC, and Alta Fox Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2017Renaissance Technologies LLCSell-297,700165,492$2,972
Q1 2017ARK InvestBuy6191,835$33
Q4 2016First Eagle U.S. ValueBuy934,543942,043$15,007
Q4 2016Renaissance Technologies LLCSell-759,500463,192$7,379
Q4 2016Sequoia Financial AdvisorsBuy92,397165,323$2,634
Q4 2016ARK InvestBuy1,2161,216$19
Q3 2016Renaissance Technologies LLCBuy660,5001,222,692$22,094
Q3 2016Sequoia Financial AdvisorsBuy72,92672,926$1,318
Q2 2016Renaissance Technologies LLCBuy562,192562,192$7,168
Q1 2014First Eagle U.S. ValueBuy7,5007,500$283

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.