Renaissance Technologies (RenTech)'s ARAY Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 2.29 M shares of Accuray Incorporated (ARAY) worth $889,131, representing 0.00% of the portfolio. First purchased in 2013-Q4, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in ARAY, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2016, adding 967,723 shares. Largest reduction occurred in Q4 2022, reducing 651,155 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Accuray Incorporated (ARAY) Holding Value Over Time
Track share changes against reported price movement
Quarterly Accuray Incorporated (ARAY) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -161,623 | Reduce 6.59% | 2.29 M | $0.39 |
| Q4 2025 | -31,677 | Reduce 1.28% | 2.45 M | $0.82 |
| Q3 2025 | -120,100 | Reduce 4.61% | 2.48 M | $1.67 |
| Q2 2025 | -119,000 | Reduce 4.37% | 2.6 M | $1.37 |
| Q1 2025 | -256,614 | Reduce 8.61% | 2.72 M | $1.79 |
| Q4 2024 | +189,414 | Add 6.79% | 2.98 M | $1.98 |
| Q3 2024 | -21,600 | Reduce 0.77% | 2.79 M | $1.80 |
| Q2 2024 | +7,500 | Add 0.27% | 2.81 M | $1.82 |
| Q1 2024 | -61,200 | Reduce 2.14% | 2.8 M | $2.47 |
| Q4 2023 | -56,300 | Reduce 1.93% | 2.87 M | $2.83 |
| Q3 2023 | -11,600 | Reduce 0.40% | 2.92 M | $2.72 |
| Q2 2023 | +28,500 | Add 0.98% | 2.93 M | $0.00 |
| Q1 2023 | -175,736 | Reduce 5.70% | 2.91 M | $0.00 |
| Q4 2022 | -651,155 | Reduce 17.45% | 3.08 M | $0.00 |
| Q3 2022 | +60,268 | Add 1.64% | 3.73 M | $2.08 |
| Q2 2022 | +549,523 | Add 17.60% | 3.67 M | $1.96 |
| Q1 2022 | -163,923 | Reduce 4.99% | 3.12 M | $3.31 |
| Q4 2021 | -648,500 | Reduce 16.48% | 3.29 M | $4.77 |
| Q3 2021 | +223,982 | Add 6.04% | 3.93 M | $3.95 |
| Q2 2021 | +99,741 | Add 2.76% | 3.71 M | $4.52 |
| Q1 2021 | -448,700 | Reduce 11.05% | 3.61 M | $4.95 |
| Q4 2020 | -166,809 | Reduce 3.95% | 4.06 M | $4.17 |
| Q3 2020 | -463,308 | Reduce 9.88% | 4.23 M | $2.40 |
| Q2 2020 | -29,699 | Reduce 0.63% | 4.69 M | $2.03 |
| Q1 2020 | -206,713 | Reduce 4.20% | 4.72 M | $1.90 |
| Q4 2019 | +35,804 | Add 0.73% | 4.93 M | $2.82 |
| Q3 2019 | -206,391 | Reduce 4.05% | 4.89 M | $2.77 |
| Q2 2019 | -274,723 | Reduce 5.11% | 5.1 M | $3.87 |
| Q1 2019 | -135,500 | Reduce 2.46% | 5.37 M | $4.77 |
| Q4 2018 | +194,500 | Add 3.66% | 5.51 M | $3.41 |
| Q3 2018 | +422,023 | Add 8.63% | 5.31 M | $4.50 |
| Q2 2018 | +229,700 | Add 4.93% | 4.89 M | $4.10 |
| Q1 2018 | +106,900 | Add 2.35% | 4.66 M | $5.00 |
| Q4 2017 | +347,500 | Add 8.26% | 4.55 M | $4.30 |
| Q3 2017 | -184,500 | Reduce 4.20% | 4.21 M | $4.00 |
| Q2 2017 | +85,400 | Add 1.98% | 4.39 M | $4.75 |
| Q1 2017 | +98,100 | Add 2.33% | 4.31 M | $4.75 |
| Q4 2016 | -79,223 | Reduce 1.85% | 4.21 M | $4.60 |
| Q3 2016 | +967,723 | Add 29.16% | 4.29 M | $6.37 |
| Q2 2016 | +537,600 | Add 19.33% | 3.32 M | $5.19 |
| Q1 2016 | +505,877 | Add 22.23% | 2.78 M | $5.78 |
| Q4 2015 | +278,800 | Add 13.96% | 2.28 M | $6.75 |
| Q3 2015 | +866,071 | Add 76.60% | 2 M | $5.00 |
| Q2 2015 | +682,952 | Add 152.55% | 1.13 M | $6.74 |
| Q1 2015 | -545,283 | Reduce 54.91% | 447,700 | $9.30 |
| Q4 2014 | -319,040 | Reduce 24.32% | 992,983 | $7.55 |
| Q3 2014 | +782,900 | Add 147.96% | 1.31 M | $7.26 |
| Q2 2014 | +281,483 | Add 113.67% | 529,123 | $8.80 |
| Q1 2014 | -199,883 | Reduce 44.66% | 247,640 | $9.60 |
| Q4 2013 | +447,523 | New Buy | 447,523 | $8.70 |
Renaissance Technologies (RenTech)'s Accuray Incorporated Investment FAQs
Renaissance Technologies (RenTech) first purchased Accuray Incorporated (ARAY) in Q4 2013, acquiring 447,523 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 (RenTech) has held Accuray Incorporated (ARAY) for 50 quarters since Q4 2013.
Renaissance Technologies (RenTech)'s largest addition to Accuray Incorporated (ARAY) was in Q3 2016, adding 4,286,723 shares worth $27.31 M.
According to the latest 13F filing for Q1 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 2,290,984 shares of Accuray Incorporated (ARAY), valued at approximately $889,131.
As of the Q1 2026 filing, Accuray Incorporated (ARAY) represents approximately 0.00% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Accuray Incorporated (ARAY) was 5,507,123 shares, as reported at the end of Q4 2018.