Renaissance Technologies's ATI Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 259,992 shares of ATI Inc. (ATI) worth $21.15 M, representing 0.03% of the portfolio. First purchased in 2016-Q2, this long-term strategic position has been held for 38 quarters.
Based on 13F filings, Renaissance Technologies has maintained a strategic position in ATI, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2016, adding 660,500 shares. Largest reduction occurred in Q4 2016, reducing 759,500 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's ATI (ATI) Holding Value Over Time
Track share changes against reported price movement
Quarterly ATI (ATI) Trades by Renaissance Technologies
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2016 | +562,192 | New Buy | 562,192 | $12.75 |
| Q3 2016 | +660,500 | Add 117.49% | 1.22 M | $18.07 |
| Q4 2016 | -759,500 | Reduce 62.12% | 463,192 | $15.93 |
| Q1 2017 | -297,700 | Reduce 64.27% | 165,492 | $17.96 |
| Q2 2017 | -165,492 | Sold Out | 165,492 | $0.00 |
| Q3 2017 | +183,792 | New Buy | 183,792 | $23.90 |
| Q4 2017 | -183,792 | Sold Out | 183,792 | $0.00 |
| Q1 2018 | +199,992 | New Buy | 199,992 | $23.68 |
| Q2 2018 | -172,500 | Reduce 86.25% | 27,492 | $25.13 |
| Q3 2018 | +279,000 | Add 1014.84% | 306,492 | $29.55 |
| Q4 2018 | -286,400 | Reduce 93.44% | 20,092 | $21.75 |
| Q1 2019 | +124,700 | Add 620.65% | 144,792 | $25.57 |
| Q2 2019 | -144,792 | Sold Out | 144,792 | $0.00 |
| Q1 2020 | +730,192 | New Buy | 730,192 | $8.50 |
| Q2 2020 | -271,162 | Reduce 37.14% | 459,030 | $10.19 |
| Q3 2020 | +90,800 | Add 19.78% | 549,830 | $8.72 |
| Q4 2020 | -256,638 | Reduce 46.68% | 293,192 | $16.77 |
| Q1 2021 | -293,192 | Sold Out | 293,192 | $0.00 |
| Q3 2021 | +194,792 | New Buy | 194,792 | $16.63 |
| Q4 2021 | +147,600 | Add 75.77% | 342,392 | $15.93 |
| Q1 2022 | -270,600 | Reduce 79.03% | 71,792 | $26.84 |
| Q2 2022 | +108,600 | Add 151.27% | 180,392 | $22.71 |
| Q3 2022 | +394,300 | Add 218.58% | 574,692 | $26.61 |
| Q4 2022 | -415,300 | Reduce 72.26% | 159,392 | $0.03 |
| Q1 2023 | +124,000 | Add 77.80% | 283,392 | $0.04 |
| Q2 2023 | -97,892 | Reduce 34.54% | 185,500 | $0.04 |
| Q3 2023 | -70,008 | Reduce 37.74% | 115,492 | $41.15 |
| Q4 2023 | -115,492 | Sold Out | 115,492 | $0.00 |
| Q1 2024 | +135,592 | New Buy | 135,592 | $51.17 |
| Q2 2024 | +44,600 | Add 32.89% | 180,192 | $55.45 |
| Q3 2024 | -92,000 | Reduce 51.06% | 88,192 | $66.91 |
| Q4 2024 | +90,000 | Add 102.05% | 178,192 | $55.04 |
| Q1 2025 | -4,300 | Reduce 2.41% | 173,892 | $52.03 |
| Q2 2025 | +307,800 | Add 177.01% | 481,692 | $86.34 |
| Q3 2025 | -221,700 | Reduce 46.03% | 259,992 | $81.34 |
Renaissance Technologies's ATI Investment FAQs
Renaissance Technologies first purchased ATI Inc. (ATI) in Q2 2016, acquiring 562,192 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies has held ATI Inc. (ATI) for 38 quarters since Q2 2016. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies's largest addition to ATI Inc. (ATI) was in Q1 2020, adding 730,192 shares worth $6.21 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 259,992 shares of ATI Inc. (ATI), valued at approximately $21.15 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, ATI Inc. (ATI) represents approximately 0.03% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies's peak holding in ATI Inc. (ATI) was 1,222,692 shares, as reported at the end of Q3 2016. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.