CASTLE BIOSCIENCES INC (CSTL)
Institutional ownership reported to the SEC as of Q2 2026, across 28 quarters.
170
Reporting holders
$630.1M
Reported value
86.4%
Of shares outstanding
0.0%
Held as options
-6
Holder change
Institutions report 26,389,797 shares against 30,549,507 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. A figure this high can overstate: where an adviser and a sub-adviser both report the same shares, both are counted.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $78.5M | 3,291,963 | 0.00% | 8q | +10.4%+$7.4M |
| RTW INVESTMENTS, LP | $66.3M | 2,778,335 | 0.57% | 3q | +0.7%+$477.0K |
| PRINCIPAL FINANCIAL GROUP INC | $41.2M | 1,726,648 | 0.02% | 25q | -2.4%-$1.0M |
| VANGUARD CAPITAL MANAGEMENT LLC | $29.3M | 1,226,497 | 0.00% | 2q | +4.2%+$1.2M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $20.1M | 840,785 | 0.00% | 2q | -2.4%-$500.5K |
| Allianz Asset Management GmbH | $19.9M | 811,324 | 0.02% | 8q | HELD |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | $19.7M | 824,872 | 0.35% | 4q | -12.3%-$2.8M |
| STATE STREET CORP | $19.6M | 822,079 | 0.00% | 28q | +6.9%+$1.3M |
| GEODE CAPITAL MANAGEMENT, LLC | $19.0M | 795,912 | 0.00% | 28q | +9.3%+$1.6M |
| MACKENZIE FINANCIAL CORP | $18.9M | 793,507 | 0.02% | 7q | +970.7%+$17.2M |
| DIMENSIONAL FUND ADVISORS LP | $18.9M | 791,085 | 0.00% | 20q | -23.9%-$5.9M |
| Jefferies Financial Group Inc. | $15.4M | 647,391 | 0.10% | new | NEW |
| Qube Research & Technologies Ltd | $14.1M | 589,300 | 0.01% | 8q | +5.3%+$708.8K |
| AIGH Capital Management LLC | $13.0M | 545,101 | 0.82% | 4q | -7.7%-$1.1M |
| RENAISSANCE TECHNOLOGIES LLC | $8.9M | 371,200 | 0.01% | 19q | -30.3%-$3.9M |
| GOLDMAN SACHS GROUP INC | $8.5M | 358,397 | 0.00% | 28q | +5.0%+$410.8K |
| Point72 Asset Management, L.P. | $8.5M | 357,317 | 0.01% | new | NEW |
| KENNEDY CAPITAL MANAGEMENT LLC | $8.3M | 348,371 | 0.15% | new | NEW |
| Connor, Clark & Lunn Investment Management Ltd. | $7.9M | 331,727 | 0.01% | 17q | -12.0%-$1.1M |
| MORGAN STANLEY | $7.9M | 329,684 | 0.00% | 28q | -23.1%-$2.4M |
| Portolan Capital Management, LLC | $7.8M | 328,818 | 0.29% | 17q | -75.6%-$24.4M |
| PANAGORA ASSET MANAGEMENT INC | $7.2M | 301,040 | 0.02% | 4q | +35.4%+$1.9M |
| Allspring Global Investments Holdings, LLC | $7.0M | 292,470 | 0.01% | 19q | +82.0%+$3.1M |
| NORTHERN TRUST CORP | $6.8M | 285,158 | 0.00% | 28q | +4.4%+$287.6K |
| WASATCH ADVISORS LP | $6.7M | 279,349 | 0.04% | 28q | -38.6%-$4.2M |
| CITADEL ADVISORS LLC | $6.3M | 265,353 | 0.00% | 25q | +119.3%+$3.4M |
| KORNITZER CAPITAL MANAGEMENT INC /KS | $6.3M | 264,235 | 0.13% | 25q | HELD |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | $6.1M | 256,095 | 0.04% | 8q | -4.6%-$296.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $6.1M | 254,535 | 0.00% | 27q | +5.2%+$301.8K |
| Sixth Street Partners Management Company, L.P. | $6.1M | 254,535 | 0.00% | new | NEW |
| Advisors Capital Management, LLC | $5.7M | 238,204 | 0.06% | 21q | -4.1%-$242.6K |
| NEW YORK STATE COMMON RETIREMENT FUND | $5.6M | 234,746 | 0.01% | 27q | +0.7%+$40.5K |
| PALISADE CAPITAL MANAGEMENT, LP | $5.5M | 231,931 | 0.24% | 19q | -56.7%-$7.2M |
| Nuveen, LLC | $5.5M | 231,726 | 0.00% | 6q | -55.6%-$6.9M |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $5.3M | 221,338 | 0.09% | 5q | -13.3%-$807.2K |
| Trexquant Investment LP | $4.9M | 206,111 | 0.03% | 12q | +58.0%+$1.8M |
| MILLENNIUM MANAGEMENT LLC | $4.9M | 205,369 | 0.00% | 20q | -41.9%-$3.5M |
| VANGUARD FIDUCIARY TRUST CO | $4.7M | 197,494 | 0.00% | 2q | +4.9%+$221.4K |
| AQR CAPITAL MANAGEMENT LLC | $4.0M | 166,567 | 0.00% | 7q | +156.7%+$2.4M |
| FIRST TRUST ADVISORS LP | $3.5M | 145,064 | 0.00% | new | NEW |
| Parkman Healthcare Partners LLC | $3.5M | 144,791 | 0.35% | 13q | +14.8%+$444.6K |
| Empowered Funds, LLC | $3.4M | 142,338 | 0.02% | 5q | +7.7%+$242.2K |
| D. E. Shaw & Co., Inc. | $2.7M | 112,789 | 0.00% | 7q | -46.8%-$2.4M |
| Man Group plc | $2.6M | 108,761 | 0.00% | 3q | +130.7%+$1.5M |
| TWO SIGMA INVESTMENTS, LP | $2.4M | 100,374 | 0.00% | 6q | -59.7%-$3.5M |
| BANK OF AMERICA CORP /DE/ | $2.4M | 98,745 | 0.00% | 28q | +45.6%+$737.8K |
| Bank of New York Mellon Corp | $2.3M | 98,018 | 0.00% | 27q | +10.6%+$223.3K |
| FRANKLIN RESOURCES INC | $2.3M | 97,733 | 0.00% | 10q | +7.5%+$162.8K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $2.2M | 92,736 | 0.00% | 3q | +241.7%+$1.6M |
| UBS Group AG | $2.1M | 89,368 | 0.00% | 28q | +81.8%+$958.9K |
| JPMORGAN CHASE & CO | $2.1M | 84,804 | 0.00% | 28q | -4.5%-$96.5K |
| SummitTX Capital, L.P. | $1.9M | 79,018 | 0.05% | 4q | +17.9%+$285.8K |
| SEI INVESTMENTS CO | $1.8M | 74,433 | 0.00% | 8q | +112.4%+$939.4K |
| ALGERT GLOBAL LLC | $1.7M | 70,478 | 0.02% | 16q | +1.3%+$22.0K |
| Orion Porfolio Solutions, LLC | $1.7M | 69,654 | 0.01% | 21q | -7.0%-$125.0K |
| BNP PARIBAS FINANCIAL MARKETS | $1.7M | 69,571 | 0.00% | 7q | -43.0%-$1.3M |
| AMERICAN CENTURY COMPANIES INC | $1.6M | 65,413 | 0.00% | 13q | -17.3%-$326.6K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $1.5M | 64,346 | 0.00% | 26q | -1.0%-$14.7K |
| NORGES BANK | $1.4M | 60,100 | 0.00% | new | NEW |
| FMR LLC | $1.3M | 55,871 | 0.00% | 18q | +10.8%+$130.2K |
| ENVESTNET ASSET MANAGEMENT INC | $1.3M | 55,157 | 0.00% | 22q | -10.8%-$160.0K |
| Invesco Ltd. | $1.3M | 54,888 | 0.00% | 25q | -10.0%-$146.1K |
| Swiss National Bank | $1.3M | 53,700 | 0.00% | 25q | -6.3%-$85.9K |
| JANE STREET GROUP, LLC | $1.1M | 44,793 | 0.00% | 4q | +5.2%+$53.2K |
| XTX Topco Ltd | $952.2K | 39,923 | 0.01% | 3q | +96.8%+$468.4K |
| RHUMBLINE ADVISERS | $930.4K | 39,010 | 0.00% | 26q | +1.6%+$15.1K |
| Russell Investments Group, Ltd. | $761.4K | 31,679 | 0.00% | 13q | +240.1%+$537.5K |
| Y-Intercept (Hong Kong) Ltd | $761.2K | 31,916 | 0.02% | 3q | +35.8%+$200.7K |
| STRS OHIO | $727.4K | 30,500 | 0.00% | 28q | +22.0%+$131.2K |
| BARCLAYS PLC | $723.4K | 30,330 | 0.00% | 18q | +13.1%+$84.0K |
| DEUTSCHE BANK AG\ | $718.8K | 30,139 | 0.00% | 28q | +24.7%+$142.5K |
| WELLS FARGO & COMPANY/MN | $704.6K | 29,543 | 0.00% | 28q | +14.6%+$89.7K |
| Engineers Gate Manager LP | $703.1K | 29,480 | 0.01% | 11q | +61.5%+$267.7K |
| Inspire Investing, LLC | $692.8K | 29,047 | 0.03% | 9q | +38.0%+$190.8K |
| ALLIANCEBERNSTEIN L.P. | $665.3K | 27,100 | 0.00% | 25q | +7.2%+$44.9K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $601.5K | 25,221 | 0.00% | 6q | -26.7%-$218.6K |
| TRUIST FINANCIAL CORP | $567.3K | 23,786 | 0.00% | 13q | HELD |
| Tidal Investments LLC | $529.1K | 22,186 | 0.00% | new | NEW |
| Legal & General Group Plc | $490.1K | 20,548 | 0.00% | 28q | -11.4%-$62.9K |
| Schonfeld Strategic Advisors LLC | $475.3K | 19,930 | 0.00% | 25q | -53.0%-$536.2K |
| First Bank & Trust | $443.4K | 18,591 | 0.07% | 8q | +12.6%+$49.8K |
| VANGUARD ASSET MANAGEMENT, Ltd | $421.0K | 17,653 | 0.00% | 2q | HELD |
| MetLife Investment Management, LLC | $405.6K | 17,008 | 0.00% | 26q | +1.7%+$6.8K |
| Counterpoint Mutual Funds LLC | $393.8K | 16,510 | 0.04% | new | NEW |
| Campbell & CO Investment Adviser LLC | $393.0K | 16,476 | 0.02% | 2q | -88.9%-$3.2M |
| Quantinno Capital Management LP | $391.8K | 16,428 | 0.00% | 3q | -63.9%-$692.8K |
| Diversify Advisory Services, LLC | $389.4K | 15,932 | 0.01% | new | NEW |
| DIVERSIFY WEALTH MANAGEMENT, LLC | $389.4K | 15,932 | 0.01% | 9q | +1.1%+$4.2K |
| CITIGROUP INC | $385.0K | 16,144 | 0.00% | 28q | +300.9%+$289.0K |
| PERKINS CAPITAL MANAGEMENT INC | $384.9K | 16,140 | 0.29% | 27q | +4.7%+$17.3K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $371.6K | 15,579 | 0.00% | 24q | +3.7%+$13.1K |
| Jupiter Topco LLC | $358.2K | 15,037 | 0.00% | new | FIRST |
| TUDOR INVESTMENT CORP ET AL | $344.9K | 14,462 | 0.00% | 10q | -93.5%-$5.0M |
| LPL Financial LLC | $339.1K | 14,220 | 0.00% | 4q | +46.6%+$107.8K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $328.8K | 13,785 | 0.00% | 9q | +0.8%+$2.6K |
| Creative Planning | $326.3K | 13,681 | 0.00% | 8q | +9.6%+$28.7K |
| Oak Harvest Investment Services | $321.6K | 13,485 | 0.03% | 7q | HELD |
| Birchview Capital, LP | $309.7K | 12,984 | 0.14% | 11q | +0.7%+$2.0K |
| Parallel Advisors, LLC | $308.4K | 12,931 | 0.00% | 25q | -2.8%-$8.8K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $299.2K | 12,543 | 0.00% | 5q | +0.8%+$2.5K |
Showing the largest 100 of 180 reported holders.
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 170 | $630.1M | 26,389,797 | 24 | 71 | 51 | 0.0% |
| Q1 2026 | 176 | $658.7M | 26,770,439 | 22 | 65 | 53 | 0.4% |
| Q4 2025 | 184 | $1.0B | 26,807,232 | 39 | 57 | 63 | 0.3% |
| Q3 2025 | 160 | $596.8M | 26,145,157 | 34 | 55 | 47 | 0.2% |
| Q2 2025 | 142 | $529.4M | 26,112,644 | 14 | 63 | 39 | 0.0% |
| Q1 2025 | 167 | $498.4M | 25,083,582 | 26 | 64 | 49 | 0.1% |
| Q4 2024 | 186 | $695.7M | 26,066,912 | 32 | 57 | 60 | 0.7% |
| Q3 2024 | 173 | $723.6M | 25,130,492 | 40 | 65 | 47 | 1.4% |
| Q2 2024 | 145 | $548.8M | 24,665,977 | 24 | 49 | 44 | 2.7% |
| Q1 2024 | 137 | $572.3M | 25,695,469 | 14 | 47 | 50 | 1.1% |
| Q4 2023 | 140 | $515.5M | 24,005,537 | 29 | 47 | 39 | 0.0% |
| Q3 2023 | 122 | $376.5M | 22,271,305 | 17 | 45 | 36 | 0.4% |
| Q2 2023 | 119 | $304.5M | 22,110,614 | 16 | 61 | 22 | 0.3% |
| Q1 2023 | 130 | $457.2M | 20,164,749 | 11 | 50 | 31 | 0.1% |
| Q4 2022 | 122 | $436.5M | 18,565,873 | 21 | 35 | 43 | 0.2% |
| Q3 2022 | 157 | $575.7M | 21,856,966 | 25 | 54 | 46 | 1.0% |
| Q2 2022 | 145 | $495.7M | 22,558,806 | 25 | 69 | 27 | 0.1% |
| Q1 2022 | 160 | $1.0B | 22,807,071 | 22 | 65 | 42 | 0.0% |
| Q4 2021 | 157 | $920.1M | 21,464,597 | 15 | 61 | 47 | 0.1% |
| Q3 2021 | 187 | $1.4B | 21,502,992 | 20 | 76 | 49 | 0.2% |
| Q2 2021 | 181 | $1.5B | 20,801,687 | 37 | 74 | 39 | 0.6% |
| Q1 2021 | 176 | $1.5B | 21,328,706 | 33 | 70 | 55 | 1.0% |
| Q4 2020 | 167 | $1.3B | 20,005,701 | 37 | 63 | 45 | 1.0% |
| Q3 2020 | 145 | $693.0M | 13,451,323 | 29 | 63 | 35 | 0.1% |
| Q2 2020 | 125 | $444.2M | 11,763,039 | 46 | 50 | 18 | 0.1% |
| Q1 2020 | 88 | $220.5M | 7,398,227 | 31 | 36 | 14 | 0.0% |
| Q4 2019 | 66 | $177.6M | 5,167,588 | 20 | 28 | 12 | 0.0% |
| Q3 2019 | 57 | $88.1M | 4,869,109 | 56 | 0 | 0 | 0.0% |