Castle Biosciences
Insider trading & Transactions

Last updated: 13 Aug 2021

Transaction	Date	Insider	Security	Shares	Price per share	Total value
Sale	13 Aug 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	$65.21	$815,113
Sale	4 Aug 2021	BRADBURY DANIEL director director	Common Stock	5,000	$69.96	$349,810
Sale	3 Aug 2021	BRADBURY DANIEL director director	Common Stock	5,000	$69.36	$346,805
Sale	3 Aug 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	4,020	$70.35	$282,807
Sale	2 Aug 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	1,369	$70.26	$96,186
Sale	30 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	2,111	$70.17	$148,129
Sale	27 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	N/A	N/A
Sale	27 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	$63.4	$316,990
Sale	26 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	N/A	N/A
Sale	26 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	$65.16	$325,810
Sale	21 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	$67.73	$846,675
Sale	21 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	N/A	N/A
Sale	20 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	N/A	N/A
Sale	20 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	$66.21	$827,575
Sale	19 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	N/A	N/A
Sale	19 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	$64.7	$808,700
Sale	19 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	12,500	$64.7	$808,700
Sale	9 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	$72.58	$362,905
Sale	9 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	N/A	N/A
Sale	9 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	N/A	N/A
Sale	8 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	N/A	N/A
Sale	8 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	N/A	N/A
Sale	8 Jul 2021	BRADBURY DANIEL director director	Common Stock	5,000	$70.11	$350,550
Sale	7 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	N/A	N/A
Sale	7 Jul 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$70.36	$703,580
Sale	24 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$75.12	$751,200
Sale	24 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$75.12	$751,200
Sale	23 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$75.36	$753,550
Sale	23 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$75.36	$753,550
Sale	22 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$74.56	$745,600
Sale	22 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$74.56	$745,600
Option	17 Jun 2021	JUVENAL TOBIN W	Stock option (right to buy)	10,000	N/A	N/A
Sale	17 Jun 2021	KABAKOFF DAVID S director director	Common Stock	30,000	$75.07	$2,252,100
Option	17 Jun 2021	JUVENAL TOBIN W	Common Stock	10,000	N/A	N/A
Option	17 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Common Stock	1,273	$73	$92,929
Option	17 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Stock option (right to buy)	1,273	$73	$92,929
Sale	17 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Common Stock	1,273	$73	$92,929
Option	17 Jun 2021	JUVENAL TOBIN W	Common Stock	10,000	N/A	N/A
Sale	17 Jun 2021	JUVENAL TOBIN W	Common Stock	10,000	N/A	N/A
Option	16 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Stock option (right to buy)	2,127	$73.07	$155,420
Option	16 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Common Stock	2,127	$73.07	$155,420
Sale	16 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Common Stock	2,127	$73.07	$155,420
Option	15 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Common Stock	11,600	$2.39	$27,724
Option	15 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Stock option (right to buy)	11,600	$2.39	$27,724
Sale	15 Jun 2021	STOKES FRANK officer: Chief Financial Officer officer: Chief Financial Officer	Common Stock	11,600	$2.39	$27,724
Sale	10 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	N/A	N/A
Sale	10 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$70.14	$701,390
Sale	9 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$72.4	$723,960
Sale	9 Jun 2021	MAETZOLD DEREK J director, officer: Pres. & Chief Exec. Of.. director, officer: Pres. & Chie..	Common Stock	10,000	$72.4	$723,960
Option	8 Jun 2021	SPIESS BERNHARD E. officer: Chief Business Officer officer: Chief Business Officer	Stock option (right to buy)	8,989	$1.92	$17,259

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Insider trading

Monitoring trades made by the management members or major shareholders of companies may help create a sharper picture of what is happening inside the companies. Base your decisions on buys or sells of the people involved and do the right thing at the right time.

Who is insider?

Every director or senior officer, as well as any other entity or individual owning more than 10% of the company’s shares on the stock market, is called an insider. Such people or entities are allowed to buy/sell the company's shares under strictly controlled conditions. Key premise here is that none of them can make trades based on non-public information about the company.

Castle Biosciences Insider trading & Transactions

Insider trading

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Castle Biosciences
Insider trading & Transactions