Castleark Management LLC

SEC CIK: 0001106832
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

CSTL holding history

Castle Biosciences Inc in every 13F filed by Castleark Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CSTL overview All 13F holders of CSTL Full Q2 2026 holdings

Shares (Q4 2021): 0; Sold out in Q4 2021
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q1 2021

Holdings of CSTL by Castleark Management LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q4 2021	0	$0	0.0%	−147,867−100.0%	Sold out	Holders
Q3 2021	147,867	$9.83M	0.4%	−7,570−4.9%	Reduced	Holders
Q2 2021	155,437	$11.4M	0.4%	−8,170−5.0%	Reduced	Holders
Q1 2021	163,607	$11.2M	0.4%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.