Cliff Asness's CSTL Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 64,880 shares of Castle Biosciences, Inc. (CSTL) worth $1.59 M, representing 0.00% of the portfolio. First purchased in 2020-Q4, this medium-term investment has been held for 13 quarters.
Based on 13F filings, Cliff Asness has maintained a strategic position in CSTL, demonstrating sustained confidence in this investment. Largest addition occurred in Q1 2025, adding 115,907 shares. Largest reduction occurred in Q2 2025, reducing 87,792 shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's Castle Biosciences (CSTL) Holding Value Over Time
Track share changes against reported price movement
Quarterly Castle Biosciences (CSTL) Trades by Cliff Asness
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +999 | Add 1.56% | 64,880 | $24.55 |
| Q4 2025 | +13,039 | Add 25.65% | 63,881 | $38.90 |
| Q3 2025 | +1,612 | Add 3.27% | 50,842 | $22.77 |
| Q2 2025 | -87,792 | Reduce 64.07% | 49,230 | $20.42 |
| Q1 2025 | +115,907 | Add 548.93% | 137,022 | $20.02 |
| Q4 2024 | +21,115 | New Buy | 21,115 | $26.65 |
| Q2 2024 | -22,795 | Sold Out | 0 | $0.00 |
| Q1 2024 | +8,592 | Add 60.49% | 22,795 | $22.15 |
| Q4 2023 | -240 | Reduce 1.66% | 14,203 | $21.58 |
| Q3 2023 | +14,443 | New Buy | 14,443 | $16.89 |
| Q2 2021 | -6,381 | Sold Out | 0 | $0.00 |
| Q1 2021 | -4,446 | Reduce 41.06% | 6,381 | $68.48 |
| Q4 2020 | +10,827 | New Buy | 10,827 | $67.15 |
Cliff Asness's Castle Biosciences Investment FAQs
Cliff Asness first purchased Castle Biosciences, Inc. (CSTL) in Q4 2020, acquiring 10,827 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 Castle Biosciences, Inc. (CSTL) for 13 quarters since Q4 2020.
Cliff Asness's largest addition to Castle Biosciences, Inc. (CSTL) was in Q1 2025, adding 137,022 shares worth $2.74 M.
According to the latest 13F filing for Q1 2026, Cliff Asness's firm, Aqr Capital Management LLC, owns 64,880 shares of Castle Biosciences, Inc. (CSTL), valued at approximately $1.59 M.
As of the Q1 2026 filing, Castle Biosciences, Inc. (CSTL) represents approximately 0.00% of Cliff Asness's publicly disclosed stock portfolio, making it one of their key holdings.
Cliff Asness's peak holding in Castle Biosciences, Inc. (CSTL) was 137,022 shares, as reported at the end of Q1 2025.