Maetzold Derek J

Pres. &Chief Exec. Officer

1 company

Strong

Trades Analyzed

180

12M Win Rate

73.0%

Avg 3M Return

+5.9%

Avg 12M Return

+20.8%

Maetzold Derek J is a Pres. &Chief Exec. Officer at CASTLE BIOSCIENCES INC. Recent SEC Form 4 filings include 0 buys and 123 sells.

Estimated insider holdings value: $312K based on current market prices.

Holdings by Company

CSTLJun 15, 2026

Current Shares12.6K

Value$312.2K

Net Activity-459,729

Bought: 0Sold: 459.7K

Showing 10 filings (page 3)

Date	Ticker	Role	Type	Shares	Price	Value	Chg%	3M	12M
Mar 26, 2025	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	5,644	$20.30	$114,573.20	-2.5%	-4.6%	+23.0%
Mar 10, 2025	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	29,177	$20.07	$585,673.31	-5.2%	-4.0%	+40.5%
Mar 4, 2025	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sale+OE	5,687	$20.86	$118,619.45	-2.2%	-26.8%	+26.7%
Jan 13, 2025	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	2,874	$27.84	$80,019.06	-0.4%	-23.9%	+51.6%
Jan 7, 2025	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	7,689	$29.66	$228,066.82	-0.8%	-40.7%	+26.2%
Dec 17, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	9,364	$28.34	$265,357.92	-5.2%	-28.8%	+40.9%
Dec 16, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	26,036	$28.72	$747,759.21	-4.5%	-30.5%	+35.6%
Dec 5, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	5,127	$31.35	$160,741.70	-2.0%	-33.7%	+20.1%
Nov 12, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	5,127	$34.15	$175,087.05	-2.0%	-15.5%	+6.2%
Nov 4, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	5,127	$32.54	$166,819.96	-1.0%	-14.5%	-6.0%