WhaleCreep

Which hedge funds own CSTL? CASTLE BIOSCIENCES INC, Q2 2026 13F holders

HealthcareDiagnostics & Research

24 tracked hedge funds disclosed a position in CSTL (CASTLE BIOSCIENCES INC) in their Q2 2026 13F filings, worth $153.6m in total. The largest holder by portfolio weight is RTW Investments, LP at 0.6% of its book. 3 opened a new position this quarter: EntryPoint Capital, LLC, Point72 Asset Management, L.P., Freestone Grove Partners LP. 7 exited: Formula Growth Ltd, Fox Run Management, L.L.C., Gsa Capital Partners LLP.

24
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
3
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
7
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$8.7m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$4.1m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$154m
Combined value
Sum of the holders' reported positions in the security.
1.9%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

24 rows
RTW Investments, LP Hedge fund0.6%$66.3m2.78m+0.7%added
Summit Partners Public Asset Management, LLC Hedge fund0.5%$19.7m824,872−12%reduced
Parkman Healthcare Partners LLC Hedge fund0.4%$3.5m144,791+15%added
Birchview Capital, LP Hedge fund0.1%$310k12,984+0.7%added
EntryPoint Capital, LLC Hedge fund0.05%$213k8,942–new
SummitTX Capital, L.P. Hedge fund0.05%$1.9m79,018+18%added
Trexquant Investment LP Hedge fund0.03%$4.9m206,111+58%added
Campbell & CO Investment Adviser LLC Hedge fund0.02%$393k16,476−89%reduced
Numerai GP LLC Hedge fund0.02%$247k10,348+25%added
Qube Research & Technologies Ltd Hedge fund0.02%$14.1m589,300+5.3%added
Y-Intercept (Hong Kong) Ltd Hedge fund0.02%$761k31,916+36%added
Point72 Asset Management, L.P. Hedge fund0.01%$8.5m357,317–new
Renaissance Technologies LLC Hedge fund0.01%$8.9m371,200−30%reduced
Engineers Gate Manager LP Hedge fund0.01%$703k29,480+61%added
Citadel Advisors LLC Hedge fund0.0%$6.3m265,353+119%added
Millennium Management LLC Hedge fund0.0%$4.9m205,369−42%reduced
Schonfeld Strategic Advisors LLC Hedge fund0.0%$475k19,930−53%reduced
Quantbot Technologies LP Hedge fund0.0%$62.0k2,599−88%reduced
Two Sigma Investments, LP Hedge fund0.0%$2.4m100,374−60%reduced
D. E. Shaw & Co., Inc. Hedge fund0.0%$2.7m112,789−47%reduced
Tudor Investment Corp ET AL Hedge fund0.0%$345k14,462−94%reduced
AQR Capital Management LLC Hedge fund0.0%$4.0m166,567+157%added
Arrowstreet Capital, Limited Partnership Hedge fund0.0%$2.2m92,736+242%added
Freestone Grove Partners LP Hedge fund0.0%$241–new