Cliff Asness's UCTT Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 178,782 shares of Ultra Clean Holdings, Inc. (UCTT) worth $11.12 M, representing 0.01% of the portfolio. First purchased in 2013-Q4, this long-term strategic position has been held for 46 quarters.
Based on 13F filings since 2013, Cliff Asness has maintained a long-term strategic position in UCTT, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2017, adding 368,999 shares. Largest reduction occurred in Q3 2018, reducing 507,127 shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's Ultra Clean Holdings (UCTT) Holding Value Over Time
Track share changes against reported price movement
Quarterly Ultra Clean Holdings (UCTT) Trades by Cliff Asness
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -39,881 | Reduce 18.24% | 178,782 | $62.18 |
| Q4 2025 | -18,401 | Reduce 7.76% | 218,663 | $25.33 |
| Q3 2025 | +34,815 | Add 17.21% | 237,064 | $27.25 |
| Q2 2025 | +3,458 | Add 1.74% | 202,249 | $22.57 |
| Q1 2025 | +28,690 | Add 16.87% | 198,791 | $21.41 |
| Q4 2024 | +89,051 | Add 109.87% | 170,101 | $35.95 |
| Q3 2024 | +52,192 | Add 180.86% | 81,050 | $39.93 |
| Q2 2024 | +9,778 | Add 51.25% | 28,858 | $49.00 |
| Q1 2024 | -34,483 | Reduce 64.38% | 19,080 | $45.94 |
| Q4 2023 | -3,802 | Reduce 6.63% | 53,563 | $34.14 |
| Q3 2023 | +11,750 | Add 25.76% | 57,365 | $29.67 |
| Q2 2023 | -10,942 | Reduce 19.35% | 45,615 | $38.46 |
| Q1 2023 | +244 | Add 0.43% | 56,557 | $33.16 |
| Q4 2022 | -23,922 | Reduce 29.81% | 56,313 | $33.15 |
| Q3 2022 | +42,525 | Add 112.77% | 80,235 | $25.75 |
| Q2 2022 | -3,123 | Reduce 7.65% | 37,710 | $29.78 |
| Q1 2022 | -8,709 | Reduce 17.58% | 40,833 | $42.39 |
| Q4 2021 | -3,823 | Reduce 7.16% | 49,542 | $57.37 |
| Q3 2021 | -2,964 | Reduce 5.26% | 53,365 | $42.59 |
| Q2 2021 | -10,611 | Reduce 15.85% | 56,329 | $53.72 |
| Q1 2021 | -37,056 | Reduce 35.63% | 66,940 | $58.04 |
| Q4 2020 | -37,103 | Reduce 26.30% | 103,996 | $31.15 |
| Q3 2020 | -44,784 | Reduce 24.09% | 141,099 | $21.46 |
| Q2 2020 | +25,454 | Add 15.87% | 185,883 | $22.63 |
| Q1 2020 | +100,715 | Add 168.66% | 160,429 | $13.80 |
| Q4 2019 | +59,714 | New Buy | 59,714 | $23.46 |
| Q4 2018 | -13,918 | Sold Out | 0 | $0.00 |
| Q3 2018 | -507,127 | Reduce 97.33% | 13,918 | $12.57 |
| Q2 2018 | +39,028 | Add 8.10% | 521,045 | $16.60 |
| Q1 2018 | -235,540 | Reduce 32.83% | 482,017 | $19.25 |
| Q4 2017 | +192,112 | Add 36.56% | 717,557 | $23.09 |
| Q3 2017 | +368,999 | Add 235.86% | 525,445 | $30.62 |
| Q2 2017 | +43,997 | Add 39.13% | 156,446 | $18.75 |
| Q1 2017 | +112,449 | New Buy | 112,449 | $16.87 |
| Q3 2016 | -33,261 | Sold Out | 0 | $0.00 |
| Q2 2016 | -42,927 | Reduce 56.34% | 33,261 | $5.68 |
| Q1 2016 | -56,348 | Reduce 42.52% | 76,188 | $5.36 |
| Q4 2015 | -44,169 | Reduce 25.00% | 132,536 | $5.12 |
| Q3 2015 | -152,555 | Reduce 46.33% | 176,705 | $5.74 |
| Q2 2015 | +45,704 | Add 16.12% | 329,260 | $6.23 |
| Q1 2015 | +38,400 | Add 15.66% | 283,556 | $7.15 |
| Q4 2014 | +101,000 | Add 70.06% | 245,156 | $9.28 |
| Q3 2014 | +82,400 | Add 133.43% | 144,156 | $8.95 |
| Q2 2014 | +23,800 | Add 62.70% | 61,756 | $9.05 |
| Q1 2014 | +27,096 | Add 249.50% | 37,956 | $13.15 |
| Q4 2013 | +10,860 | New Buy | 10,860 | $10.04 |
Cliff Asness's Ultra Clean Holdings Investment FAQs
Cliff Asness first purchased Ultra Clean Holdings, Inc. (UCTT) in Q4 2013, acquiring 10,860 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness has held Ultra Clean Holdings, Inc. (UCTT) for 46 quarters since Q4 2013.
Cliff Asness's largest addition to Ultra Clean Holdings, Inc. (UCTT) was in Q3 2017, adding 525,445 shares worth $16.09 M.
According to the latest 13F filing for Q1 2026, Cliff Asness's firm, Aqr Capital Management LLC, owns 178,782 shares of Ultra Clean Holdings, Inc. (UCTT), valued at approximately $11.12 M.
As of the Q1 2026 filing, Ultra Clean Holdings, Inc. (UCTT) represents approximately 0.01% of Cliff Asness's publicly disclosed stock portfolio, making it one of their key holdings.
Cliff Asness's peak holding in Ultra Clean Holdings, Inc. (UCTT) was 717,557 shares, as reported at the end of Q4 2017.