Back to Dashboard
CSTL · Healthcare

Castle Biosciences Inc

USA Healthcare Filing: 2026-03-31
20/100
Smart-money confidence1 of 3 sources positive
Bearish — money moving out

No standout activity across the feeds we track.

Hedge funds
26
Congress
No data
Insiders
No data
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s.  ·  how the score works
Market cap
$988M
Industry
Diagnostics & Research
Sector
Healthcare
Exchange
NasdaqGM
About CASTLE BIOSCIENCES INC

Castle Biosciences, Inc., a molecular diagnostics company, provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), atopic dermatitis (AD), and uveal melanoma. The company offers DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test that predicts the likelihood of a positive sentinel lymph node and the risk of metastasis for patients with invasive cutaneous melanoma; TissueCypher, a risk stratification spatialomics test to predict future development of high-grade dysplasia and/or esophageal cancer in patients with…

Who's behind the signal
Every informed buyer we can see on CSTL, across all three feeds.
Hedge funds · 5
D.E. Shaw & Co Increased +33%
Citadel Advisors Decreased −67%
Congress · 0
No congressional trades on record.
Insiders
No significant Form 4 insider activity in the window.
Congressional trades · 3 on record
Disclosures from 2020-12-21 to 2022-03-15
The newest disclosure we hold for this stock is 2022-03-15. That is the end of our data, not necessarily the end of the trading — our bulk STOCK Act archive stops there and newer filings arrive through a separate live feed. Treat the absence of recent rows as “not covered”, not as “no trades”.
Trade date Member Chamber Action Amount
2022-03-15 Josh Gottheimer · D-NJ House Sold $1,001 - $15,000
2020-12-23 Gilbert Ray Cisneros, Jr. · D-CA House Bought $1,001 - $15,000
2020-12-21 Josh Gottheimer · D-NJ House Bought $1,001 - $15,000
Not a model pick — but on our radar. CASTLE BIOSCIENCES INC isn't in the top-10 model right now, but 5 tracked investors hold it. Everything below is real signal from public filings — treat this as a watch candidate, not a conviction call.
5
Investors
0
New positions
3
Increasing
1
Decreasing
1
Unchanged
Price History
Loading price data...
Return: High: Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Trust weight: 1.2×
Increased +33%
% of portfolio
0.0%
Position change
+33%
0.0% of Tudor Investment's portfolio
Trust weight: 1.0×
Increased +14%
% of portfolio
0.0%
Position change
+14%
0.0% of Millennium Management's portfolio
Trust weight: 1.0×
Increased +33%
% of portfolio
0.0%
Position change
+33%
0.0% of D.E. Shaw & Co's portfolio
Trust weight: 1.0×
Decreased −67%
% of portfolio
0.0%
Position change
−67%
0.0% of Citadel Advisors's portfolio
Trust weight: 1.0×
Unchanged
% of portfolio
0.0%
Position change
0.0% of AQR Capital Management's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to CASTLE BIOSCIENCES INC
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell CASTLE BIOSCIENCES INC or any security.

订阅每周更新

我们每周会把巴菲特、达利欧、阿克曼以及另外 47 位传奇投资人正在买入的股票发送给你 — 免费,直接来自他们的 SEC 申报文件。
永久免费 · 无垃圾邮件 · 随时退订