CASTLE BIOSCIENCES INC (CSTL): Institutional Ownership
Hedge funds and institutional managers reporting a position in CSTL · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
14
13F filers
Aggregate Value
$46.6M
Across holders
Last Price
$24.30
2026-06-26
Sector
Health Care
GICS
Holder activity6 new6 added2 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 560K | $13.7M | 29.5% | 0.0% | Added | +$8.0M | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 533K | $13.1M | 28.0% | 0.0% | Added | +$975K | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 249K | $6.1M | 13.1% | 0.0% | Added | +$4.0M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 223K | $5.5M | 11.7% | 0.0% | Added | +$1.4M | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 88K | $2.2M | 4.7% | 0.0% | Reduced | $-1.7M | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 47K | $1.2M | 2.5% | 0.0% | Added | +$873K | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 42K | $1.0M | 2.2% | 0.0% | Added | +$514K | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 22K | $874K | 1.9% | 0.0% | New | — | Q4 2025 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 33K | $801K | 1.7% | 0.0% | New | — | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 29K | $687K | 1.5% | 0.0% | New | — | Q4 2022 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 17K | $654K | 1.4% | 0.0% | New | — | Q4 2025 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 19K | $456K | 1.0% | 0.0% | New | — | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 20K | $395K | 0.8% | 0.0% | New | — | Q1 2025 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 2 | $49 | 0.0% | 0.0% | Reduced | $-24 | Q1 2026 |
Added
Hedge Fund
$13.7M· 29.5% of total· 0.0% port· 560K sh· +$8.0M QoQ· Q1 2026
Added
Hedge Fund
$13.1M· 28.0% of total· 0.0% port· 533K sh· +$975K QoQ· Q1 2026
Added
Hedge Fund
$6.1M· 13.1% of total· 0.0% port· 249K sh· +$4.0M QoQ· Q1 2026
Added
Hedge Fund
$5.5M· 11.7% of total· 0.0% port· 223K sh· +$1.4M QoQ· Q1 2026
Reduced
Hedge Fund
$2.2M· 4.7% of total· 0.0% port· 88K sh· $-1.7M QoQ· Q1 2026
Added
Hedge Fund
$1.2M· 2.5% of total· 0.0% port· 47K sh· +$873K QoQ· Q1 2026
Added
Hedge Fund
$1.0M· 2.2% of total· 0.0% port· 42K sh· +$514K QoQ· Q1 2026
New
Hedge Fund
$874K· 1.9% of total· 0.0% port· 22K sh· — QoQ· Q4 2025
New
Hedge Fund
$801K· 1.7% of total· 0.0% port· 33K sh· — QoQ· Q1 2026
New
Hedge Fund
$687K· 1.5% of total· 0.0% port· 29K sh· — QoQ· Q4 2022
New
Hedge Fund
$654K· 1.4% of total· 0.0% port· 17K sh· — QoQ· Q4 2025
New
Hedge Fund
$456K· 1.0% of total· 0.0% port· 19K sh· — QoQ· Q1 2026
New
Hedge Fund
$395K· 0.8% of total· 0.0% port· 20K sh· — QoQ· Q1 2025
Reduced
Hedge Fund
$49· 0.0% of total· 0.0% port· 2 sh· $-24 QoQ· Q1 2026