Castle Biosciences Inc
CSTL- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001447362
In the last 90 days, Castle Biosciences Inc insiders filed 0 open-market purchases and 20 sales; 176 institutions reported holding it in 13F filings for Q2 2026, worth $653.8M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Castle Biosciences Inc as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 180
- −14 vs. Q4 2024
- Shares held
- 25.9M
- −168.1K (−0.6%) vs. Q4 2024
- Total value
- $516.3M
- −$177.7M (−25.6%) vs. Q4 2024
- New holders
- 30
- 76 more added
- Sold out
- 44
- 54 more reduced
3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CSTL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 176 | $653.8M |
| Q1 2026 | 186 | $677.8M |
| Q4 2025 | 195 | $1.06B |
| Q3 2025 | 173 | $608.3M |
| Q2 2025 | 152 | $541.8M |
| Q1 2025 | 180 | $516.3M |
| Q4 2024 | 197 | $706.4M |
| Q3 2024 | 185 | $736.9M |
| Q2 2024 | 159 | $549.4M |
| Q1 2024 | 151 | $553.2M |
| Q4 2023 | 153 | $515.4M |
| Q3 2023 | 135 | $391.0M |
| Q2 2023 | 130 | $316.6M |
| Q1 2023 | 148 | $501.9M |
| Q4 2022 | 153 | $522.0M |
| Q3 2022 | 157 | $569.8M |
| Q2 2022 | 146 | $495.0M |
| Q1 2022 | 160 | $1.02B |
| Q4 2021 | 159 | $918.6M |
| Q3 2021 | 188 | $1.42B |
| Q2 2021 | 182 | $1.52B |
| Q1 2021 | 175 | $1.46B |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Castle Biosciences Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $20 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 5 | $99 | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 11 | $221 | 0.00% | +11 | New |
| Missouri Trust & Investment Co | 19 | $380 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 20 | $400 | 0.00% | −20−50.0% | Reduced |
| Parkside Financial Bank & Trust | 20 | $401 | 0.00% | +20 | New |
| US Bancorp | 24 | $480 | 0.00% | −1,178−98.0% | Reduced |
| Jones Financial Companies LLLP | 25 | $499 | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 31 | $621 | 0.00% | 00.0% | Unchanged |
| Bryn Mawr Trust Co | 46 | $921 | 0.00% | +46 | New |
| EverSource Wealth Advisors, LLC | 47 | $941 | 0.00% | +38+422.2% | Added |
| Simplex Trading, LLC | 97 | $1.00K | 0.00% | −2,967−96.8% | Reduced |
| Spire Wealth Management | 50 | $1.00K | 0.00% | +50 | New |
| Massmutual Trust Co FSB | 51 | $1.02K | 0.00% | −39−43.3% | Reduced |
| SBI Securities Co., Ltd. | 58 | $1.16K | 0.00% | +8+16.0% | Added |
| BFSG, LLC | 90 | $1.80K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 86 | $2.00K | 0.00% | 00.0% | Unchanged |
| Principal Securities, Inc. | 90 | $2.40K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 120 | $2.40K | 0.00% | +120 | New |
| Rossby Financial, LCC | 142 | $2.93K | 0.00% | +142 | New |
| Caitong International Asset Management Co., Ltd | 156 | $3.12K | 0.00% | +156 | New |
| Lindbrook Capital, LLC | 179 | $3.58K | 0.00% | +7+4.1% | Added |
| True Wealth Design, LLC | 201 | $4.03K | 0.00% | +200+20,000.0% | Added |
| Advisor Group Holdings, Inc. | 202 | $4.04K | 0.00% | +188+1,342.9% | Added |
| GAMMA Investing LLC | 218 | $4.36K | 0.00% | −4−1.8% | Reduced |
| Sterling Capital Management LLC | 316 | $6.33K | 0.00% | −256−44.8% | Reduced |
| Nisa Investment Advisors, LLC | 336 | $6.73K | 0.00% | −109−24.5% | Reduced |
| Coldstream Capital Management Inc | 342 | $6.85K | 0.00% | +342 | New |
| Hughes Financial Services, LLC | 435 | $8.60K | 0.00% | +435 | New |
| GF Fund Management Co. Ltd. | 716 | $14.3K | 0.00% | +128+21.8% | Added |
| Tower Research Capital LLC (TRC) | 782 | $15.7K | 0.00% | −10,483−93.1% | Reduced |
| Amalgamated Bank | 893 | $18.0K | 0.00% | +60+7.2% | Added |
| Arcadia Investment Management Corp | 904 | $18.1K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 932 | $18.6K | 0.00% | −1−0.1% | Reduced |
| FMR LLC | 1,156 | $23.1K | 0.00% | +75+6.9% | Added |
| Covestor Ltd | 1,219 | $24.0K | 0.02% | +283+30.2% | Added |
| Point72 (DIFC) Ltd | 1,773 | $35.5K | 0.00% | +539+43.7% | Added |
| First Horizon Advisors, Inc. | 1,810 | $36.2K | 0.00% | −200−10.0% | Reduced |
| Canada Pension Plan Investment Board | 2,400 | $48.0K | 0.00% | +1,500+166.7% | Added |
| Ameritas Investment Partners, Inc. | 2,450 | $49.0K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 2,500 | $50.0K | 0.00% | +2,500 | New |
| C M Bidwell & Associates Ltd | 3,180 | $63.7K | 0.04% | +482+17.9% | Added |
| Amundi | 4,137 | $79.4K | 0.00% | +4,111+15,811.5% | Added |
| Assetmark, Inc | 3,980 | $79.7K | 0.00% | −432−9.8% | Reduced |
| CWM, LLC | 4,142 | $83.0K | 0.00% | +3,699+835.0% | Added |
| KLP Kapitalforvaltning AS | 4,800 | $96.1K | 0.00% | 00.0% | Unchanged |
| Lazard Asset Management LLC | 4,928 | $98.0K | 0.00% | +4,928 | New |
| China Universal Asset Management Co., Ltd. | 5,719 | $114.5K | 0.01% | −220−3.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 5,837 | $116.9K | 0.00% | 00.0% | Unchanged |
| Quest Partners LLC | 6,008 | $120.3K | 0.01% | −4,223−41.3% | Reduced |
| Royal Bank of Canada | 9,087 | $182.0K | 0.00% | +191+2.1% | Added |
| Lido Advisors, LLC | 10,031 | $200.8K | 0.00% | −493−4.7% | Reduced |
| Teacher Retirement System of Texas | 10,383 | $207.9K | 0.00% | +908+9.6% | Added |
| Great West Life Assurance Co | 10,713 | $215.0K | 0.00% | 00.0% | Unchanged |
| Creative Planning | 11,100 | $222.2K | 0.00% | +1,560+16.4% | Added |
| Magnetar Financial LLC | 11,226 | $224.7K | 0.00% | +11,226 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 11,753 | $235.3K | 0.00% | +11,753 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 12,081 | $241.9K | 0.00% | −1,561−11.4% | Reduced |
| Brevan Howard Capital Management LP | 12,205 | $244.3K | 0.01% | +12,205 | New |
| Corebridge Financial, Inc. | 12,866 | $257.6K | 0.00% | +60.0% | Added |
| Winton Group Ltd | 12,869 | $257.6K | 0.02% | +12,869 | New |
| Diversify Wealth Management, LLC | 13,102 | $260.1K | 0.02% | +717+5.8% | Added |
| Mach-1 Financial Group, Inc. | 13,313 | $266.5K | 0.08% | +13,313 | New |
| Simon Quick Advisors, LLC | 13,595 | $272.2K | 0.02% | +20+0.1% | Added |
| Stephens Inc | 13,639 | $273.1K | 0.00% | −800−5.5% | Reduced |
| Man Group plc | 14,514 | $290.6K | 0.00% | +1,212+9.1% | Added |
| First Bank & Trust | 15,136 | $303.0K | 0.06% | +6,512+75.5% | Added |
| Quantbot Technologies LP | 15,287 | $306.0K | 0.01% | +15,287 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 15,441 | $309.1K | 0.00% | +655+4.4% | Added |
| MetLife Investment Management | 15,729 | $314.9K | 0.00% | −288−1.8% | Reduced |
| Intech Investment Management LLC | 16,078 | $321.9K | 0.00% | +4,500+38.9% | Added |
| Wells Fargo & Company | 16,347 | $327.3K | 0.00% | +972+6.3% | Added |
| Caxton Associates LLP | 16,440 | $329.1K | 0.01% | +16,440 | New |
| Harbor Capital Advisors, Inc. | 16,595 | $332.0K | 0.02% | −101,905−86.0% | Reduced |
| Centiva Capital, LP | 16,802 | $336.4K | 0.02% | −6,213−27.0% | Reduced |
| Oak Harvest Investment Services | 16,883 | $338.0K | 0.05% | +9,156+118.5% | Added |
| CWM Advisors, LLC | 17,153 | $343.4K | 0.04% | −28,597−62.5% | Reduced |
| STRS Ohio | 18,300 | $366.4K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 18,669 | $372.6K | 0.00% | +11,457+158.9% | Added |
| Sherbrooke Park Advisers LLC | 19,439 | $389.2K | 0.18% | +7,067+57.1% | Added |
| HSBC Holdings PLC | 19,627 | $390.6K | 0.00% | −46−0.2% | Reduced |
| XTX Topco Ltd | 19,628 | $393.0K | 0.02% | +19,628 | New |
| Balyasny Asset Management LLC | 19,730 | $395.0K | 0.00% | +19,730 | New |
| Advantage Alpha Capital Partners LP | 19,805 | $396.5K | 0.10% | +19,805 | New |
| EntryPoint Capital, LLC | 20,432 | $409.0K | 0.19% | −8,712−29.9% | Reduced |
| Hussman Strategic Advisors, Inc. | 21,000 | $420.4K | 0.10% | −52,500−71.4% | Reduced |
| Cerity Partners LLC | 21,138 | $423.2K | 0.00% | +21,138 | New |
| Dynamic Technology Lab Private Ltd | 21,235 | $425.0K | 0.06% | +3,605+20.4% | Added |
| Jacobs Levy Equity Management, Inc | 21,299 | $426.4K | 0.00% | −113,483−84.2% | Reduced |
| Truist Financial Corp | 22,308 | $446.6K | 0.00% | +1,005+4.7% | Added |
| Fan Yu | 22,503 | $450.5K | 0.46% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 23,705 | $475.0K | 0.00% | +1,008+4.4% | Added |
| TownSquare Capital, LLC | 23,772 | $475.9K | 0.01% | +1,584+7.1% | Added |
| California State Teachers Retirement System | 24,620 | $492.9K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 25,916 | $518.8K | 0.00% | −36−0.1% | Reduced |
| Mackenzie Financial Corp | 27,460 | $549.7K | 0.00% | +6,440+30.6% | Added |
| Parallel Advisors, LLC | 27,593 | $550.8K | 0.01% | −402−1.4% | Reduced |
| HRT Financial LP | 28,285 | $566.0K | 0.00% | +15,916+128.7% | Added |
| JPMorgan Chase & Co | 30,577 | $612.2K | 0.00% | −77,359−71.7% | Reduced |
| Summit Global Investments | 30,640 | $613.0K | 0.04% | +2,164+7.6% | Added |