§ AEROSPACE & DEFENSE
USD · Aerospace & DefenseATI
ATI INC
USDSector · Aerospace & DefenseBeta · 1.02
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
OPEN 191.81HIGH 195.20LOW 189.2552W 39.23 — 168.14
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
487 increased/new, 231 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 49.7 | P/B | 8.78 |
| EPS (TTM) | 2.85 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| BlackRock, Inc. | 16.4M | 0.0% | +12% |
| Capital Research Global Investors | 6.2M | 0.1% | +71% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.1M | n/a | n/a |
| Capital International Investors | 5.9M | 0.2% | −66% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.8M | n/a | n/a |
| Capital World Investors | 5.7M | 0.1% | −22% |
◇ AC INTELLIGENCE
Top institutional owners for ATI as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER33.8% · 523 holders
QUALITY / COMPOUNDER24.0% · 32 holders
PASSIVE / INDEX19.7% · 12 holders
DEALER / BANK11.7% · 47 holders
TACTICAL / MACRO4.1% · 8 holders
INCOME / DEFENSIVE2.3% · 33 holders
SYSTEMATIC / QUANT2.2% · 17 holders
ACTIVIST1.3% · 1 holder
DEEP VALUE0.6% · 1 holder
GROWTH / MOMENTUM0.0% · 1 holder
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for ATI in the last 180 days.