Ownership history in PEAK6 LLC · 9 quarters on record
This page tracks every 13F SEC filing in which PEAK6 LLC reported a position in ATI INC (ATI). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 15,843 | -186,757 | -92.2% | 0.00% | $1.8M | $114.76 |
| 2025 Q4 | ADDED | 202,600 | +155,300 | +328.3% | 0.04% | $23.3M | $114.76 |
| 2025 Q3 | ADDED | 47,300 | +27,600 | +140.1% | 0.01% | $3.8M | $81.34 |
| 2025 Q3 | REDUCED | 19,700 | -17,700 | -47.3% | 0.00% | $1.6M | $81.34 |
| 2025 Q2 | ADDED | 37,400 | +17,700 | +89.8% | 0.01% | $3.2M | $86.34 |
| 2025 Q2 | ADDED | 19,700 | +13,828 | +235.5% | 0.00% | $1.7M | $86.34 |
| 2025 Q1 | REDUCED | 5,872 | -22,428 | -79.3% | 0.00% | $306K | $52.03 |
| 2025 Q1 | ADDED | 28,300 | +16,100 | +132.0% | 0.00% | $1.5M | $52.03 |
| 2024 Q4 | INITIATED | 12,200 | — | — | 0.00% | $671K | $55.04 |
As of 2025 Q4 — sorted by position size