Castle BiosciencesCSTL
13F holders, Q3 2025 (September 30)173holders +21
36new positions
14sold out
7famous investors
$22.83avg. 13F price*
At the end of Q3 2025, 173 institutions reported holding Castle Biosciences Inc. (CSTL) in their 13F filings, up 21 from Q2 2025. 36 opened new positions and 14 sold out. The largest holders were BlackRock, Inc. ($72.6M), Vanguard Group Inc. ($49.5M) and Principal Financial Group Inc. ($40.9M). 7 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies'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 Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 36 | $45.2M |
| Exits | 14 | $14.4M |
All 13F filers, Q2 2025 → Q3 2025: 3,335,887 shares bought and 3,177,513 shares sold, net +158,374 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 173 holders
| BlackRock, Inc. | 0.00% | Add +1.1% | 3,189,896 | $72.6M |
| Vanguard Group Inc. | 0.00% | Add +0.1% | 2,172,318 | $49.5M |
| Principal Financial Group Inc. | 0.02% | Reduce -0.3% | 1,794,355 | $40.9M |
| Portolan Capital Management, LLC | 1.87% | Add +1.7% | 1,515,111 | $34.5M |
| Dimensional Fund Advisors LP | 0.01% | Add +7.0% | 1,474,089 | $33.6M |
| Nuveen, LLC | 0.01% | Reduce -10.8% | 957,081 | $21.8M |
| Braidwell LP | 0.76% | No change | 822,735 | $18.7M |
| State Street Corp. | 0.00% | Add +2.3% | 724,080 | $16.5M |
| AIGH Capital Management LLC | 5.64% | New | 707,287 | $16.1M |
| Geode Capital Management, LLC | 0.00% | Add +1.3% | 698,610 | $15.9M |
| Wasatch Advisors LP | 0.08% | Reduce -36.3% | 669,120 | $15.2M |
| Allianz Asset Management GmbH | 0.02% | Reduce -9.2% | 648,351 | $14.8M |
| Palisade Capital Management, LP | 0.45% | Add +11.1% | 638,656 | $14.5M |
| Millennium Management | 0.01% | Add +34.2% | 575,089 | $13.1M |
| Renaissance Technologies | 0.02% | Reduce -16.1% | 562,600 | $12.8M |
| Schroder Investment Management Group | 0.01% | Reduce -23.7% | 494,950 | $11.1M |
| Parkman Healthcare Partners LLC | 1.19% | Add +35.0% | 475,568 | $10.8M |
| Acadian Asset Management LLC | 0.02% | Reduce -17.0% | 451,652 | $10.3M |
| Summit Partners Public Asset Management, LLC | 0.30% | New | 400,000 | $9.1M |
| Silvercrest Asset Management Group LLC | 0.06% | Add +31.4% | 367,888 | $8.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +26.2% | 345,099 | $7.9M |
| Point72 Asset Management | 0.02% | New | 336,958 | $7.7M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | Add +165.7% | 335,891 | $7.6M |
| Bank of America Corp. | 0.00% | Reduce -17.6% | 315,370 | $7.2M |
| UBS Group AG | 0.00% | Reduce -19.9% | 291,362 | $6.6M |
| Northern Trust Corp. | 0.00% | Add +0.9% | 282,267 | $6.4M |
| Kornitzer Capital Management Inc. | 0.13% | No change | 278,314 | $6.3M |
| Morgan Stanley | 0.00% | Add +60.9% | 269,631 | $6.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -31.2% | 256,233 | $5.8M |
| Advisors Capital Management, LLC | 0.07% | Add +3.4% | 254,200 | $5.8M |
| Citadel Advisors | 0.00% | Reduce -71.8% | 250,915 | $5.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.3% | 238,154 | $5.4M |
| New York State Common Retirement Fund | 0.01% | Add +6.6% | 230,046 | $5.2M |
| Qube Research & Technologies Ltd | 0.01% | Add +14.8% | 220,961 | $5.0M |
| Summit Wealth Group LLC / Co. | 0.48% | New | 122,494 | $4.5M |
| Trexquant Investment LP | 0.04% | Reduce -43.9% | 178,442 | $4.1M |
| Bridgeway Capital Management, LLC | 0.09% | Add +334.8% | 177,180 | $4.0M |
| Allspring Global Investments Holdings, LLC | 0.01% | Reduce -2.9% | 156,513 | $3.6M |
| BNP Paribas Financial Markets | 0.00% | Add +40.9% | 139,914 | $3.2M |
| Birchview Capital, LP | 1.90% | No change | 110,600 | $2.5M |
| Franklin Resources Inc. | 0.00% | Add +0.5% | 99,787 | $2.3M |
| Empowered Funds, LLC | 0.02% | Add +140.9% | 98,180 | $2.2M |
| Bank of New York Mellon Corp | 0.00% | Add +4.6% | 94,016 | $2.1M |
| D. E. Shaw & Co. | 0.00% | Reduce -37.5% | 92,614 | $2.1M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +29.1% | 87,691 | $2.0M |
| Tudor Investment Corporation | 0.01% | Add +11.8% | 85,435 | $1.9M |
| American Century Companies Inc. | 0.00% | Add +26.4% | 82,512 | $1.9M |
| Orion Porfolio Solutions, LLC | 0.01% | Reduce -0.3% | 76,344 | $1.7M |
| Barclays PLC | 0.00% | Reduce -33.4% | 73,068 | $1.7M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -5.0% | 66,928 | $1.5M |
| Algert Global LLC | 0.02% | Reduce -68.7% | 57,895 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -44.1% | 57,460 | $1.3M |
| Swiss National Bank | 0.00% | Add +3.1% | 56,000 | $1.3M |
| Invesco Ltd. | 0.00% | Add +38.1% | 55,840 | $1.3M |
| AQR Capital Management | 0.00% | Add +3.3% | 50,842 | $1.2M |
| Cubist Systematic Strategies, LLC | 0.02% | New | 50,304 | $1.1M |
| HRT Financial LP | 0.00% | Add +150.9% | 47,239 | $1.1M |
| Engineers Gate Manager LP | 0.01% | Reduce -30.9% | 46,506 | $1.1M |
| SummitTX Capital, L.P. | 0.04% | New | 45,000 | $1.0M |
| Rhumbline Advisers | 0.00% | Reduce -3.6% | 43,758 | $996K |
| Tritonpoint Wealth, LLC | 0.08% | No change | 40,777 | $928K |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | No change | 35,800 | $815K |
| Legal & General Group Plc | 0.00% | No change | 34,908 | $795K |
| Alliancebernstein L.P. | 0.00% | No change | 33,370 | $760K |
| HSBC Holdings PLC | 0.00% | Reduce -2.3% | 33,233 | $749K |
| T. Rowe Price Associates Inc. | 0.00% | Add +23.4% | 32,593 | $743K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Reduce -45.3% | 29,883 | $680K |
| Dynamic Technology Lab Private Ltd | 0.11% | New | 29,310 | $667K |
| FMR LLC | 0.00% | Add +18.9% | 28,542 | $650K |
| Perkins Capital Management Inc. | 0.56% | Add +0.5% | 28,145 | $641K |
| JPMorgan Chase & Co. | 0.00% | Add +4.2% | 27,778 | $633K |
| Campbell & CO Investment Adviser LLC | 0.05% | New | 26,996 | $615K |
| Sei Investments Co. | 0.00% | Reduce -14.0% | 26,771 | $610K |
| Two Sigma Investments, LP | 0.00% | Reduce -9.0% | 25,700 | $585K |
| California State Teachers Retirement System | 0.00% | Add +0.0% | 24,622 | $561K |
| Susquehanna International Group, LLP | 0.00% | Reduce -43.5% | 24,225 | $552K |
| Mackenzie Financial Corp. | 0.00% | No change | 24,204 | $551K |
| Los Angeles Capital Management LLC | 0.00% | New | 24,121 | $549K |
| Wells Fargo & Company | 0.00% | Add +18.1% | 23,979 | $546K |
| Truist Financial Corp. | 0.00% | Reduce -2.7% | 23,371 | $532K |
| Jane Street Group, LLC | 0.00% | New | 22,884 | $521K |
| Panagora Asset Management Inc. | 0.00% | New | 21,398 | $487K |
| Graham Capital Management, L.P. | 0.03% | Reduce -49.4% | 21,133 | $481K |
| Inspire Investing, LLC | 0.04% | Add +4.0% | 19,887 | $453K |
| First Bank & Trust | 0.08% | Reduce -0.8% | 19,799 | $451K |
| Brevan Howard Capital Management LP | 0.01% | Reduce -53.7% | 19,128 | $436K |
| Parallel Advisors, LLC | 0.01% | Reduce -36.2% | 17,786 | $405K |
| Oak Harvest Investment Services | 0.04% | No change | 16,883 | $384K |
| Capstone Investment Advisors, LLC | 0.00% | New | 16,677 | $380K |
| Deutsche Bank AG | 0.00% | Reduce -73.0% | 16,642 | $379K |
| Creative Planning | 0.00% | Add +46.5% | 16,276 | $371K |
| MetLife Investment Management, LLC | 0.00% | No change | 15,881 | $362K |
| Verition Fund Management LLC | 0.00% | Reduce -50.4% | 15,642 | $356K |
| AlphaQuest LLC | 0.02% | Add +594.2% | 14,544 | $331K |
| Fox Run Management, L.L.C. | 0.05% | New | 13,820 | $315K |
| Simon Quick Advisors, LLC | 0.01% | No change | 13,562 | $309K |
| Diversify Wealth Management, LLC | 0.02% | Reduce -4.7% | 11,747 | $305K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -14.7% | 13,273 | $302K |
| Harbor Capital Advisors, Inc. | 0.02% | Reduce -35.4% | 13,171 | $300K |
| SG Americas Securities, LLC | 0.00% | New | 13,061 | $297K |
"% of holder's portfolio" is CSTL's weight in each manager's 13F, not the share of Castle Biosciences Inc. the manager owns.