Castle Biosciences, Inc. (NASDAQ: CSTL) Stock Information | RedChip
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Castle Biosciences, Inc. (NASDAQ: CSTL)
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$21.34
-0.2600 ( -1.20% ) 79.8K

Castle Biosciences Inc is a commercial-stage dermatological cancer company. It is focused on providing physicians and their patients with personalized, clinically actionable genomic information to make more accurate treatment decisions. The product portfolio of the company includes Cutaneous Melanoma, DecisionDx-Melanoma, DecisionDx-CMSeq, and DecisionDx-PRAME among others.

Market Data


Open $21.34
Previous Close $21.60
Volume 79.8K
Market Cap $618.43M
Day Range $20.94 - $21.82
52 Week Range $14.59 - $44.28
Shares Outstanding 30.33M
Change % -1.20%
Net Change ▼ -0.2600
Insider Ownership -0.03%
Exchange NASDAQ
SectorMiscellaneous
IndustryNone
IPO Year2019
CountryUnited States
UnderwriterIPO Intelligence Only

Insider Ownership Transactions

Total Amount Purchased: -597,675.00

Date Type Amount Purchased Purchaser
2023-11-22 Sale -1926.00 MAETZOLD DEREK J
2023-09-06 Sale -718.00 MAETZOLD DEREK J
2023-09-06 Sale -1082.00 BRADBURY DANIEL
2023-09-01 Sale -1622.00 MAETZOLD DEREK J
2023-09-01 Sale -2780.00 BRADBURY DANIEL
2023-08-07 Sale -286.00 MAETZOLD DEREK J

SEC Filings


Form Type Description Pages Date
4 Insider transactions 1 Nov 13, 2025
4 Insider transactions 1 Nov 13, 2025
4 Insider transactions 1 Nov 13, 2025
4 Insider transactions 1 Nov 06, 2025
4 Insider transactions 1 Nov 04, 2025
4/a Other 1 Nov 04, 2025
10-q Quarterly Reports 81 Nov 03, 2025
8-k 8K-related 49 Nov 03, 2025
4 Insider transactions 1 Oct 23, 2025
4 Insider transactions 1 Oct 06, 2025

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