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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
$5,877,844
in 19 filings, $4.9M under 10b5-1 plans

Net −$5,877,844. 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 −$1.7M Chief Commercial Officer sold 60% 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
2023-12-19 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −350 $20.84 $7K 12,208
2023-12-19 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −350 $20.84 $7K 12,208
2023-12-19 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −350 $20.84 $7K 12,202
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −5,720 $20.27 $116K 108,437
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −433 $20.27 $9K 94,617
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −433 $20.27 $9K 83,512
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −158 $20.27 $3K 12,559
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −158 $20.27 $3K 12,558
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −158 $20.27 $3K 12,558
2023-12-18 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −158 $20.27 $3K 12,552
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −3,709 $20.21 $75K 114,157
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −322 $20.21 $7K 95,050
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −322 $20.21 $7K 83,945
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −117 $20.21 $2K 12,717
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −117 $20.21 $2K 12,716
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −118 $20.21 $2K 12,716
2023-12-15 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −117 $20.21 $2K 12,710
2023-12-14 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −8,866 $20.86 $185K 118,152
2023-12-14 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −2,795 $20.86 $58K 95,463
2023-12-14 MAETZOLD DEREK J Pres. & Chief Exec. Officer Sale 10b5-1 −2,795 $20.86 $58K 84,358

Page 50 of 84 · 1,675 trades