Cliff Asness's MKSI Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 170.0K shares of MKS Inc. (MKSI) worth $20.89 M, representing 0.01% of the portfolio. First purchased in 2012-Q4, this long-term strategic position has been held for 52 quarters.
Based on 13F filings since 2013, Cliff Asness has maintained a long-term strategic position in MKSI, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2018, adding 352.3K shares. Largest reduction occurred in Q2 2019, reducing 631.9K shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's MKS (MKSI) Holding Value Over Time
Track share changes against reported price movement
Quarterly MKS (MKSI) Trades by Cliff Asness
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2012 | +951,480 | Add 0.00% | 951,479 | $25.78 |
| Q2 2013 | +804,938 | Add 0.00% | 804,937 | $26.54 |
| Q3 2013 | -208,017 | Reduce 25.84% | 596,920 | $26.59 |
| Q4 2013 | -150,623 | Reduce 25.23% | 446,297 | $29.94 |
| Q1 2014 | -85,322 | Reduce 19.12% | 360,975 | $29.89 |
| Q2 2014 | -97,297 | Reduce 26.95% | 263,678 | $31.24 |
| Q3 2014 | -107,343 | Reduce 40.71% | 156,335 | $33.38 |
| Q4 2014 | -45,400 | Reduce 29.04% | 110,935 | $36.60 |
| Q1 2015 | -48,826 | Reduce 44.01% | 62,109 | $33.81 |
| Q2 2015 | -15,135 | Reduce 24.37% | 46,974 | $37.94 |
| Q3 2015 | -10,223 | Reduce 21.76% | 36,751 | $33.52 |
| Q4 2015 | -5,118 | Reduce 13.93% | 31,633 | $36.01 |
| Q1 2016 | +42,404 | Add 134.05% | 74,037 | $37.64 |
| Q2 2016 | +3,239 | Add 4.37% | 77,276 | $43.07 |
| Q3 2016 | -17,259 | Reduce 22.33% | 60,017 | $49.74 |
| Q4 2016 | +960 | Add 1.60% | 60,977 | $59.40 |
| Q1 2017 | -5,015 | Reduce 8.22% | 55,962 | $68.74 |
| Q2 2017 | +18,191 | Add 32.51% | 74,153 | $67.29 |
| Q3 2017 | +36,512 | Add 49.24% | 110,665 | $94.46 |
| Q4 2017 | +9,943 | Add 8.98% | 120,608 | $94.50 |
| Q1 2018 | +61,377 | Add 50.89% | 181,985 | $115.65 |
| Q2 2018 | +321,368 | Add 176.59% | 503,353 | $95.70 |
| Q3 2018 | +352,301 | Add 69.99% | 855,654 | $80.15 |
| Q4 2018 | +187,948 | Add 21.97% | 1.04 M | $64.61 |
| Q1 2019 | +128,139 | Add 12.28% | 1.17 M | $91.26 |
| Q2 2019 | -631,934 | Reduce 53.93% | 539,807 | $77.89 |
| Q3 2019 | -313,681 | Reduce 58.11% | 226,126 | $92.28 |
| Q4 2019 | -99,442 | Reduce 43.98% | 126,684 | $110.01 |
| Q1 2020 | -67,443 | Reduce 53.24% | 59,241 | $81.45 |
| Q2 2020 | +16,623 | Add 28.06% | 75,864 | $112.06 |
| Q3 2020 | +102,005 | Add 134.46% | 177,869 | $109.23 |
| Q4 2020 | -41,396 | Reduce 23.27% | 136,473 | $150.45 |
| Q1 2021 | +24,451 | Add 17.92% | 160,924 | $185.42 |
| Q2 2021 | -25,174 | Reduce 15.64% | 135,750 | $177.95 |
| Q3 2021 | +4,025 | Add 2.97% | 139,775 | $150.91 |
| Q4 2021 | -25,434 | Reduce 18.20% | 114,341 | $174.17 |
| Q1 2022 | +54,553 | Add 47.71% | 168,894 | $150.00 |
| Q2 2022 | +79,332 | Add 46.97% | 248,226 | $100.05 |
| Q3 2022 | -4,565 | Reduce 1.84% | 243,661 | $82.64 |
| Q4 2022 | -216,287 | Reduce 88.77% | 27,374 | $83.67 |
| Q1 2023 | -21,784 | Reduce 79.58% | 5,590 | $88.02 |
| Q2 2023 | -5,590 | Sold Out | 5,590 | $0.00 |
| Q3 2023 | +3,605 | New Buy | 3,605 | $86.54 |
| Q4 2023 | +4,739 | Add 131.46% | 8,344 | $102.87 |
| Q1 2024 | +11,257 | Add 134.91% | 19,601 | $131.38 |
| Q2 2024 | +14,729 | Add 75.14% | 34,330 | $130.58 |
| Q3 2024 | +100,602 | Add 293.04% | 134,932 | $108.71 |
| Q4 2024 | -76,124 | Reduce 56.42% | 58,808 | $104.39 |
| Q1 2025 | +11,403 | Add 19.39% | 70,211 | $78.83 |
| Q2 2025 | +114,836 | Add 163.56% | 185,047 | $99.36 |
| Q3 2025 | -15,050 | Reduce 8.13% | 169,997 | $122.88 |
Cliff Asness's MKS Investment FAQs
Cliff Asness first purchased MKS Inc. (MKSI) in Q4 2012, acquiring 951,479 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 MKS Inc. (MKSI) for 52 quarters since Q4 2012. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness's largest addition to MKS Inc. (MKSI) was in Q4 2012, adding 951,479 shares worth $24.53 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Cliff Asness's firm, Aqr Capital Management LLC, owns 169,997 shares of MKS Inc. (MKSI), valued at approximately $20.89 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, MKS Inc. (MKSI) represents approximately 0.01% of Cliff Asness'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.
Cliff Asness's peak holding in MKS Inc. (MKSI) was 1,171,741 shares, as reported at the end of Q1 2019. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.