Andreas Halvorsen's ATI Position Overview
Andreas Halvorsen (via Viking Global Investors Lp) currently holds 3.33 M shares of ATI Inc. (ATI) worth $484.8 M, representing 1.36% of the portfolio. First purchased in 2026-Q1, this recently established position has been held for 1 quarters.
Based on recent 13F filings, Andreas Halvorsen has initiated a new position in ATI, representing a fresh investment thesis on this company. Insufficient history to summarize additions or reductions.
Analysis based on 13F filings available since 2013 Q2
Andreas Halvorsen's ATI (ATI) Holding Value Over Time
Track share changes against reported price movement
Quarterly ATI (ATI) Trades by Andreas Halvorsen
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +3.33 M | New Buy | 3.33 M | $145.46 |
Andreas Halvorsen's ATI Investment FAQs
Andreas Halvorsen first purchased ATI Inc. (ATI) in Q1 2026, acquiring 3,332,843 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Andreas Halvorsen has held ATI Inc. (ATI) for 1 quarters since Q1 2026.
Andreas Halvorsen's largest addition to ATI Inc. (ATI) was in Q1 2026, adding 3,332,843 shares worth $484.8 M.
According to the latest 13F filing for Q1 2026, Andreas Halvorsen's firm, Viking Global Investors Lp, owns 3,332,843 shares of ATI Inc. (ATI), valued at approximately $484.8 M.
As of the Q1 2026 filing, ATI Inc. (ATI) represents approximately 1.36% of Andreas Halvorsen's publicly disclosed stock portfolio, making it one of their key holdings.
Andreas Halvorsen's peak holding in ATI Inc. (ATI) was 3,332,843 shares, as reported at the end of Q1 2026.