2 tracked superinvestors hold ATI INC (ATI), worth $768M combined, led by Andreas Halvorsen. Smart money is accumulating ATI as of the latest 13F filings.
Current price
$188.36
ATI Inc. manufactures and sells specialty materials and components worldwide. The company operates in two segments: High Performance Materials & Components (HPMC) and Advanced Alloys & Solutions (AA&S). The HPMC segment produces various materials, including titanium and titanium-based alloys, nickel- and cobalt-based alloys and superalloys, advanced powder alloys and other specialty materials, in…
Market cap
$21.3B
P/E
51.24
Div yield
—
Revenue YoY
—
Analyst target
—
Snapshot for context. For deep analysis use a stock screener — this page is about who owns it.
Superinvestors holding
2
tracked 13F / N-PORT funds
Combined value
$768M
disclosed long exposure
Tier-1 conviction
1
concentrated holders
Net this quarter
+2
2 buying · 0 selling
Smart money is net accumulating ATI: 2 funds added or opened versus 0 trimming. 1 opened a brand-new position.
ATI INC (ATI) is held by 2 tracked funds worth $768M combined, 1 of them concentrated Tier-1 managers whose positions carry real conviction.
The largest position belongs to Andreas Halvorsen at 1.4% of their book — no single tracked manager treats it as an outsized, top-weighted bet.
This quarter 1 fund opened a brand-new position (Andreas Halvorsen), with 1 adding and 0 trimming — a net accumulation signal.
| Investor | Move | % of their portfolio | Position value |
|---|---|---|---|
| New buy | 1.4% | $485M | |
| Added | 0.4% | $283M |
Tier badge = signal quality: 1 concentrated conviction · 2 quant/multi (context) · 3 retail & diversified. Only Tier 1 holdings feed the consensus signal.
Which superinvestors own ATI?
2 tracked funds hold ATI INC (ATI), the largest being Andreas Halvorsen (Viking Global Investors) at 1.4% of its 13F portfolio. 1 of them are concentrated Tier-1 conviction managers.
Is smart money buying or selling ATI?
In the most recent 13F quarter, 2 tracked funds added or opened ATI and 0 trimmed it, including 1 brand-new position.
How much ATI do tracked funds hold?
Combined disclosed long exposure to ATI across tracked superinvestors is $768M as of the Mar 2026 filings.
Holdings aggregated from the latest SEC 13F & N-PORT filings via FMP · Mar 2026 quarter. Long equity positions only, reported with up to a 45-day delay — for activity between filings see real-time moves. Not financial advice.