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CIK 0001447362 · Accelerated filer

CASTLE BIOSCIENCES INC

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Ticker
CSTL
Exchange
Nasdaq
Industry
Services-Medical Laboratories
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
770701774
Phone
866-788-9007
Business address
1500 W. PARKWOOD AVE., SUITE 400, FRIENDSWOOD, TX, 77546
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$5,765,795
in 18 filings, $4.9M under 10b5-1 plans

Net −$5,765,795. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. MAETZOLD DEREK J −$3.1M Pres. & Chief Exec. Officer sold 98% of stake
  2. Juvenal Tobin W −$1.5M Chief Commercial Officer sold 58% of stake
  3. Oelschlager Kristen M −$1.1M Chief Operating Officer sold 71% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-05-22 Goldberg Ellen Director Grant or award · Restricted Stock Units +13,667 13,667
2025-05-22 Olson Tiffany Director Grant or award · Restricted Stock Units +13,667 13,667
2025-05-22 Harrison Miles Director Grant or award · Restricted Stock Units +13,667 13,667
2025-05-21 Cole G Bradley Director Option exercise +8,673 21,964
2025-05-21 Cole G Bradley Director Option exercise · Restricted Stock Units −8,673 0
2025-05-21 BRADBURY DANIEL Director Option exercise +8,673 8,673
2025-05-21 BRADBURY DANIEL Director Option exercise · Restricted Stock Units −8,673 0
2025-05-21 Cotton Rodney Director Option exercise +8,673 14,002
2025-05-21 Cotton Rodney Director Option exercise · Restricted Stock Units −6,721 0
2025-05-21 Cotton Rodney Director Option exercise · Restricted Stock Units −1,952 0
2025-05-21 Caple Kim Director Option exercise +8,673 22,454
2025-05-21 Caple Kim Director Option exercise · Restricted Stock Units −8,673 0
2025-05-21 Goldberg Ellen Director Option exercise +8,673 27,254
2025-05-21 Goldberg Ellen Director Option exercise · Restricted Stock Units −8,673 0
2025-05-21 Olson Tiffany Director Option exercise +8,673 25,906
2025-05-21 Olson Tiffany Director Option exercise · Restricted Stock Units −8,673 0
2025-05-21 Harrison Miles Director Option exercise +8,673 21,964
2025-05-21 Harrison Miles Director Option exercise · Restricted Stock Units −8,673 0
2025-05-08 Cotton Rodney Director Grant or award · Restricted Stock Units +1,952 1,952
2025-04-21 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −1,236 $21.52 $27K 74,627

Page 21 of 45 · 897 trades