Castle BiosciencesCSTL
13F holders, Q2 2025 (June 30)152holders −28
15new positions
42sold out
6famous investors
$20.42avg. 13F price*
At the end of Q2 2025, 152 institutions reported holding Castle Biosciences Inc. (CSTL) in their 13F filings, down 28 from Q1 2025. 15 opened new positions and 42 sold out. The largest holders were BlackRock, Inc. ($64.4M), Vanguard Group Inc. ($44.3M) and Principal Financial Group Inc. ($36.7M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio).
- Company
- Castle Biosciences Inc.
- CUSIP
- 14843C105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $4.5M |
| Exits | 42 | $44.5M |
All 13F filers, Q1 2025 → Q2 2025: 4,412,766 shares bought and 3,669,272 shares sold, net +743,494 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 152 holders
| BlackRock, Inc. | 0.00% | Add +5.7% | 3,154,679 | $64.4M |
| Vanguard Group Inc. | 0.00% | Add +6.0% | 2,170,028 | $44.3M |
| Principal Financial Group Inc. | 0.02% | Add +22.6% | 1,798,974 | $36.7M |
| Portolan Capital Management, LLC | 1.91% | Add +17.7% | 1,489,572 | $30.4M |
| Dimensional Fund Advisors LP | 0.01% | Add +14.8% | 1,378,005 | $28.1M |
| Nuveen, LLC | 0.01% | Add +59.7% | 1,073,107 | $21.9M |
| Wasatch Advisors LP | 0.11% | Add +5.1% | 1,049,773 | $21.4M |
| Citadel Advisors | 0.02% | Add +243.9% | 888,515 | $18.1M |
| Braidwell LP | 0.80% | Add +125.3% | 822,735 | $16.8M |
| Allianz Asset Management GmbH | 0.02% | Add +11.6% | 713,742 | $14.6M |
| State Street Corp. | 0.00% | Reduce -1.0% | 707,687 | $14.5M |
| Geode Capital Management, LLC | 0.00% | Add +6.2% | 689,926 | $14.1M |
| Renaissance Technologies | 0.02% | Reduce -4.4% | 670,500 | $13.7M |
| Schroder Investment Management Group | 0.01% | Add +8.6% | 648,572 | $13.2M |
| Palisade Capital Management, LP | 0.38% | Add +17.4% | 575,116 | $11.7M |
| Acadian Asset Management LLC | 0.02% | Reduce -19.5% | 544,250 | $11.1M |
| Millennium Management | 0.01% | Add +68.2% | 428,397 | $8.7M |
| Wellington Management Group LLP | 0.00% | Reduce -50.9% | 407,211 | $8.3M |
| Bank of America Corp. | 0.00% | Add +2.0% | 382,745 | $7.8M |
| Ameriprise Financial Inc. | 0.00% | Add +14.4% | 372,467 | $7.6M |
| UBS Group AG | 0.00% | Add +646.2% | 363,848 | $7.4M |
| Parkman Healthcare Partners LLC | 0.83% | Add +0.5% | 352,262 | $7.2M |
| Trexquant Investment LP | 0.07% | Add +27.7% | 318,072 | $6.5M |
| Silvercrest Asset Management Group LLC | 0.04% | Add +40.8% | 279,959 | $5.7M |
| Northern Trust Corp. | 0.00% | Add +2.3% | 279,825 | $5.7M |
| Kornitzer Capital Management Inc. | 0.12% | No change | 278,314 | $5.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +56.0% | 273,443 | $5.6M |
| Advisors Capital Management, LLC | 0.07% | Add +21.9% | 245,867 | $5.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -3.0% | 235,015 | $4.8M |
| New York State Common Retirement Fund | 0.01% | Add +32.3% | 215,830 | $4.4M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -31.1% | 192,553 | $3.9M |
| Algert Global LLC | 0.08% | Add +28.3% | 185,181 | $3.8M |
| Morgan Stanley | 0.00% | Reduce -20.9% | 167,588 | $3.4M |
| Allspring Global Investments Holdings, LLC | 0.01% | Reduce -26.0% | 161,175 | $3.3M |
| D. E. Shaw & Co. | 0.00% | Reduce -21.7% | 148,190 | $3.0M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -28.5% | 126,431 | $2.6M |
| Squarepoint Ops LLC | 0.01% | Add +29.1% | 125,719 | $2.6M |
| Birchview Capital, LP | 2.24% | Add +25.1% | 110,600 | $2.3M |
| Barclays PLC | 0.00% | Add +156.3% | 109,743 | $2.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +51.0% | 102,742 | $2.1M |
| BNP Paribas Financial Markets | 0.00% | Add +119.5% | 99,293 | $2.0M |
| Franklin Resources Inc. | 0.00% | Add +0.2% | 99,247 | $2.0M |
| Bank of New York Mellon Corp | 0.00% | Add +7.0% | 89,883 | $1.8M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | New | 78,938 | $1.6M |
| Orion Porfolio Solutions, LLC | 0.01% | Reduce -2.4% | 76,532 | $1.6M |
| Tudor Investment Corporation | 0.01% | Reduce -55.4% | 76,454 | $1.6M |
| Envestnet Asset Management Inc. | 0.00% | Add +1.0% | 70,478 | $1.4M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +13.8% | 67,926 | $1.4M |
| Engineers Gate Manager LP | 0.02% | Add +27.1% | 67,252 | $1.4M |
| American Century Companies Inc. | 0.00% | Reduce -11.9% | 65,272 | $1.3M |
| Deutsche Bank AG | 0.00% | Reduce -5.8% | 61,743 | $1.3M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +364.6% | 54,610 | $1.1M |
| Swiss National Bank | 0.00% | No change | 54,300 | $1.1M |
| AQR Capital Management | 0.00% | Reduce -64.1% | 49,230 | $1.0M |
| XTX Topco Ltd | 0.04% | Add +135.9% | 46,301 | $945K |
| Rhumbline Advisers | 0.00% | Add +15.8% | 45,397 | $927K |
| Nebula Research & Development LLC | 0.08% | Add +18.2% | 44,472 | $908K |
| Susquehanna International Group, LLP | 0.00% | Add +19.4% | 42,853 | $875K |
| Graham Capital Management, L.P. | 0.03% | Reduce -38.9% | 41,783 | $853K |
| Brevan Howard Capital Management LP | 0.01% | Add +238.4% | 41,301 | $843K |
| Tritonpoint Wealth, LLC | 0.08% | Reduce -2.1% | 40,777 | $833K |
| Bridgeway Capital Management, LLC | 0.02% | New | 40,750 | $832K |
| Empowered Funds, LLC | 0.01% | New | 40,750 | $832K |
| Invesco Ltd. | 0.00% | Add +25.4% | 40,429 | $826K |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | No change | 35,800 | $731K |
| Legal & General Group Plc | 0.00% | Add +34.7% | 34,908 | $713K |
| HSBC Holdings PLC | 0.00% | Add +73.3% | 34,018 | $691K |
| Alliancebernstein L.P. | 0.00% | No change | 33,370 | $681K |
| Verition Fund Management LLC | 0.00% | Add +2.8% | 31,539 | $644K |
| Sei Investments Co. | 0.00% | Reduce -57.4% | 31,130 | $636K |
| Two Sigma Investments, LP | 0.00% | Reduce -79.8% | 28,241 | $577K |
| Perkins Capital Management Inc. | 0.57% | Reduce -17.6% | 27,995 | $572K |
| Parallel Advisors, LLC | 0.01% | Add +1.1% | 27,893 | $570K |
| JPMorgan Chase & Co. | 0.00% | Reduce -12.8% | 26,663 | $544K |
| T. Rowe Price Associates Inc. | 0.00% | Add +11.4% | 26,407 | $540K |
| California State Teachers Retirement System | 0.00% | No change | 24,620 | $503K |
| Mackenzie Financial Corp. | 0.00% | Reduce -11.9% | 24,204 | $494K |
| Truist Financial Corp. | 0.00% | Add +7.7% | 24,023 | $491K |
| FMR LLC | 0.00% | Add +1976.1% | 24,000 | $490K |
| Jump Financial, LLC | 0.01% | New | 21,858 | $446K |
| Harbor Capital Advisors, Inc. | 0.02% | Add +22.9% | 20,399 | $417K |
| Wells Fargo & Company | 0.00% | Add +24.2% | 20,300 | $415K |
| First Bank & Trust | 0.07% | Add +31.8% | 19,951 | $407K |
| Aquatic Capital Management LLC | 0.01% | New | 19,280 | $394K |
| Inspire Investing, LLC | 0.04% | Add +11.4% | 19,117 | $390K |
| HRT Financial LP | 0.00% | Reduce -33.4% | 18,826 | $384K |
| Oak Harvest Investment Services | 0.04% | No change | 16,883 | $345K |
| Advantage Alpha Capital Partners LP | 0.09% | Reduce -19.1% | 16,021 | $327K |
| MetLife Investment Management, LLC | 0.00% | Add +1.0% | 15,881 | $324K |
| Summit Global Investments | 0.02% | Reduce -48.9% | 15,649 | $320K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +0.8% | 15,561 | $318K |
| Citigroup Inc. | 0.00% | Reduce -77.6% | 14,072 | $287K |
| Simon Quick Advisors, LLC | 0.01% | Reduce -0.2% | 13,562 | $277K |
| Intech Investment Management LLC | 0.00% | Reduce -23.6% | 12,289 | $251K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +0.1% | 12,089 | $247K |
| Two Sigma Advisers, LP | 0.00% | Reduce -82.7% | 12,000 | $245K |
| STRS Ohio | 0.00% | Reduce -36.1% | 11,700 | $239K |
| Diversify Wealth Management, LLC | 0.01% | Reduce -6.0% | 12,322 | $238K |
| Stephens Inc. | 0.00% | Reduce -16.5% | 11,386 | $233K |
| Creative Planning | 0.00% | Add +0.1% | 11,111 | $227K |
"% of holder's portfolio" is CSTL's weight in each manager's 13F, not the share of Castle Biosciences Inc. the manager owns.