Renaissance Technologies (RenTech)'s CSGP Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 1.74 M shares of CoStar Group, Inc. (CSGP) worth $47.56 M, representing 0.06% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 37 quarters.
Based on 13F filings, Renaissance Technologies (RenTech) has maintained a strategic position in CSGP, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2026, adding 1.74 M shares. Largest reduction occurred in Q3 2022, reducing 1.38 M shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s CoStar Group (CSGP) Holding Value Over Time
Track share changes against reported price movement
Quarterly CoStar Group (CSGP) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q3 2026 | +1.74 M | New Buy | 1.74 M | $27.40 |
| Q4 2024 | -175,180 | Sold Out | 0 | $0.00 |
| Q3 2024 | -454,600 | Reduce 72.18% | 175,180 | $75.44 |
| Q2 2024 | +629,780 | New Buy | 629,780 | $74.14 |
| Q2 2023 | -1.37 M | Sold Out | 0 | $0.00 |
| Q1 2023 | +1.37 M | New Buy | 1.37 M | $0.07 |
| Q4 2022 | -43,200 | Sold Out | 0 | $0.00 |
| Q3 2022 | -1.38 M | Reduce 96.97% | 43,200 | $69.65 |
| Q2 2022 | +620,500 | Add 77.20% | 1.42 M | $60.41 |
| Q1 2022 | -35,900 | Reduce 4.28% | 803,780 | $66.61 |
| Q4 2021 | +839,680 | New Buy | 839,680 | $79.03 |
| Q1 2021 | -140,800 | Sold Out | 0 | $0.00 |
| Q4 2020 | -259,180 | Reduce 64.80% | 140,800 | $92.43 |
| Q3 2020 | -66,000 | Reduce 14.16% | 399,980 | $84.85 |
| Q2 2020 | +366,980 | Add 370.69% | 465,980 | $71.07 |
| Q1 2020 | +99,000 | New Buy | 99,000 | $58.72 |
| Q2 2019 | -98,640 | Sold Out | 0 | $0.00 |
| Q1 2019 | -490,340 | Reduce 83.25% | 98,640 | $46.64 |
| Q4 2018 | -1 M | Reduce 62.96% | 588,980 | $33.73 |
| Q3 2018 | -38,020 | Reduce 2.34% | 1.59 M | $42.08 |
| Q2 2018 | -467,980 | Reduce 22.33% | 1.63 M | $41.26 |
| Q1 2018 | +36,000 | Add 1.75% | 2.1 M | $36.27 |
| Q4 2017 | +1.12 M | Add 119.38% | 2.06 M | $29.69 |
| Q3 2017 | +573,000 | Add 156.57% | 938,980 | $26.82 |
| Q2 2017 | +365,980 | New Buy | 365,980 | $26.36 |
| Q4 2016 | -21,980 | Sold Out | 0 | $0.00 |
| Q3 2016 | -181,000 | Reduce 89.17% | 21,980 | $21.66 |
| Q2 2016 | +202,980 | New Buy | 202,980 | $21.86 |
| Q4 2015 | -631,980 | Sold Out | 0 | $0.00 |
| Q3 2015 | +631,980 | New Buy | 631,980 | $17.31 |
| Q4 2014 | -189,980 | Sold Out | 0 | $0.00 |
| Q3 2014 | -730,000 | Reduce 79.35% | 189,980 | $15.55 |
| Q2 2014 | -585,980 | Reduce 38.91% | 919,980 | $15.82 |
| Q1 2014 | +1.3 M | Add 641.93% | 1.51 M | $18.67 |
| Q4 2013 | +188,040 | Add 1258.63% | 202,980 | $18.46 |
| Q3 2013 | -265,320 | Reduce 94.67% | 14,940 | $16.80 |
| Q2 2013 | +280,260 | Add 0.00% | 280,260 | $12.91 |
Renaissance Technologies (RenTech)'s CoStar Group Investment FAQs
Renaissance Technologies (RenTech) first purchased CoStar Group, Inc. (CSGP) in Q2 2013, acquiring 280,260 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 CoStar Group, Inc. (CSGP) for 37 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to CoStar Group, Inc. (CSGP) was in Q3 2026, adding 1,735,903 shares worth $47.56 M.
According to the latest 13F filing for Q3 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 1,735,903 shares of CoStar Group, Inc. (CSGP), valued at approximately $47.56 M.
As of the Q3 2026 filing, CoStar Group, Inc. (CSGP) represents approximately 0.06% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in CoStar Group, Inc. (CSGP) was 2,095,980 shares, as reported at the end of Q1 2018.