Companies / Castle Biosciences, Inc. / Activity
Activity — Castle Biosciences, Inc.
80 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Portolan Capital Management, LLC 13F manager | Trim | Common stock | $-9.31M | -379K -21.92% | 1,350,283 4.42% of shares | medium |
| Q1 2026 as of | Schroder Investment Management Group 13F manager | Trim | Common stock | $-4.55M | -193K -39.26% | 298,941 0.98% of shares | low |
| Q4 2025 as of | Summit Wealth Group LLC / Co 13F manager | Exit | Common stock | $-4.51M | -122K -100.00% | 0 | low |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common stock | $4.45M | +187K +6.01% | 3,291,963 10.78% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | Common stock | $4.05M | +165K +196.01% | 248,840 0.81% of shares | low |
| Q1 2026 as of | Campbell & CO Investment Adviser LLC 13F manager | New | Common stock | $3.65M | +149K | 148,824 0.49% of shares | low |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $2.04M | +86K +11.63% | 822,079 2.69% of shares | low |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Trim | Common stock | $-2.04M | -52K -16.60% | 263,019 0.86% of shares | low |
| Q2 2026 as of | AIGH Capital Management LLC 13F manager | Trim | Common stock | $-1.90M | -80K -12.74% | 545,101 1.78% of shares | low |
| Q1 2026 as of | Silvercrest Asset Management Group LLC 13F manager | Add | Common stock | $1.56M | +64K +30.99% | 268,535 0.88% of shares | low |
| Q2 2025 as of | Barclays PLC 13F manager | Add | Common stock | $1.37M | +67K +156.32% | 109,743 0.36% of shares | low |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Add | Common stock | $1.28M | +52K +32.72% | 211,966 0.69% of shares | low |
| Q1 2026 as of | Formula Growth Ltd 13F manager | New | Common stock | $1.13M | +46K | 46,000 0.15% of shares | low |
| Q3 2024 as of | Barclays PLC 13F manager | Add | Common stock | $1.13M | +40K +310.72% | 52,301 0.17% of shares | low |
| Q1 2026 as of | Millennium Management LLC 13F manager | Add | Common stock | $1.09M | +44K +14.37% | 353,319 1.16% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Add | Common stock | $974.6K | +40K +8.05% | 532,800 1.74% of shares | low |
| Q1 2026 as of | Principal Financial Group Inc 13F manager | Trim | Common stock | $-927.2K | -38K -2.09% | 1,769,877 5.79% of shares | low |
| Q1 2026 as of | Nomura Holdings Inc 13F manager | New | Common stock | $877.6K | +36K | 35,748 0.12% of shares | low |
| Q3 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-835.1K | -37K -33.42% | 73,068 0.24% of shares | low |
| Q1 2026 as of | Palisade Capital Management, LP 13F manager | Trim | Common stock | $-783.0K | -32K -5.62% | 535,884 1.75% of shares | low |
| Q2 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-755.2K | -35K -73.15% | 12,734 0.04% of shares | low |
| Q1 2026 as of | BNP Paribas Financial Markets 13F manager | Trim | Common stock | $-683.8K | -28K -18.57% | 122,156 0.40% of shares | low |
| Q2 2026 as of | AlphaQuest LLC 13F manager | Exit | Common stock | $-665.8K | -17K -100.00% | 0 | low |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common stock | $656.0K | +30K +338.43% | 39,380 0.13% of shares | low |
| Q1 2026 as of | Magnetar Financial LLC 13F manager | New | Common stock | $572.8K | +23K | 23,332 0.08% of shares | low |
| Q4 2025 as of | Counterpoint Mutual Funds LLC 13F manager | New | Common stock | $503.8K | +13K | 12,952 0.04% of shares | low |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Add | Common stock | $493.8K | +20K +286.14% | 27,142 0.09% of shares | low |
| Q1 2026 as of | Intech Investment Management LLC 13F manager | Exit | Common stock | $-455.8K | -12K -100.00% | 0 | low |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $323.8K | +13K +1.84% | 728,100 2.38% of shares | low |
| Q2 2026 as of | Arizona State Retirement System 13F manager | Exit | Common stock | $-314.0K | -8K -100.00% | 0 | low |
| Q1 2026 as of | Intrust Bank NA 13F manager | Exit | Common stock | $-287.0K | -7K -100.00% | 0 | low |
| Q1 2026 as of | Los Angeles Capital Management LLC 13F manager | Trim | Common stock | $-267.7K | -11K -46.14% | 12,728 0.04% of shares | low |
| Q1 2026 as of | ProShare Advisors LLC 13F manager | Exit | Common stock | $-252.0K | -6K -100.00% | 0 | low |
| Q2 2026 as of | Quadrature Capital Ltd 13F manager | New | Common stock | $242.7K | +10K | 10,175 0.03% of shares | low |
| Q1 2026 as of | Cornerstone Investment Partners, LLC 13F manager | Exit | Common stock | $-236.4K | -6K -100.00% | 0 | low |
| Q1 2026 as of | Voya Investment Management LLC 13F manager | Exit | Common stock | $-204.1K | -5K -100.00% | 0 | low |
| Q1 2026 as of | Bridgeway Capital Management, LLC 13F manager | Add | Common stock | $202.9K | +8K +3.35% | 255,184 0.84% of shares | low |
| Q2 2026 as of | Deutsche Bank AG 13F manager | Add | Common stock | $185.0K | +8K +34.65% | 30,139 0.10% of shares | low |
| Q1 2024 as of | Barclays PLC 13F manager | Add | Common stock | $178.2K | +8K +20.43% | 47,425 0.16% of shares | low |
| Q2 2025 as of | Elevation Point Wealth Partners, LLC 13F manager | New | Common stock | $170.8K | +8K | 8,362 0.03% of shares | low |
| Q4 2025 as of | Elevation Point Wealth Partners, LLC 13F manager | Exit | Common stock | $-170.8K | -8K -100.00% | 0 | low |
| Q1 2023 as of | Barclays PLC 13F manager | Add | Common stock | $133.3K | +6K +89.04% | 12,454 0.04% of shares | low |
| Q1 2026 as of | CPPIB Crestone Peak Resources Canada Inc. 13F manager | Add | Common stock | $125.2K | +5K +80.95% | 11,400 0.04% of shares | low |
| Q1 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-124.1K | -6K -12.65% | 42,815 0.14% of shares | low |
| Q4 2025 as of | Persistent Asset Partners Ltd 13F manager | New | Common stock | $95.8K | +2K | 2,463 <0.01% of shares | low |
| Q2 2026 as of | Persistent Asset Partners Ltd 13F manager | Exit | Common stock | $-95.8K | -2K -100.00% | 0 | low |
| Q4 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-87.6K | -3K -6.29% | 49,013 0.16% of shares | low |
| Q2 2026 as of | LPL Financial LLC 13F manager | Add | Common stock | $79.7K | +3K +30.73% | 14,220 0.05% of shares | low |
| Q1 2026 as of | Zurcher Kantonalbank (Zurich Cantonalbank) 13F manager | Add | Common stock | $79.0K | +3K +27.25% | 15,028 0.05% of shares | low |
| Q1 2026 as of | Advisors Capital Management, LLC 13F manager | Trim | Common stock | $-56.5K | -2K -0.92% | 248,376 0.81% of shares | low |