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 92 sells.

Estimated insider holdings value: $1.9M based on current market prices.

Holdings by Company

CSTLJan 12, 2026

Current Shares91.7K

Value$1.93M

Net Activity-456,298

Bought: 0Sold: 456.3K

Showing 10 filings (page 5)

Date	Ticker	Role	Type	Shares	Price	Value	Chg%	3M	12M
May 6, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	6,336	$24.72	$156,625.92	-2.4%	-10.5%	-31.9%
Apr 23, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	1,126	$20.11	$22,642.73	-0.4%	-0.8%	+6.0%
Apr 12, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	5,210	$20.35	$106,023.50	-1.9%	-7.8%	-1.8%
Apr 3, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	6,336	$21.70	$137,491.20	-2.3%	-1.3%	-10.9%
Mar 21, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	6,336	$20.28	$128,514.14	-1.1%	-0.1%	-2.7%
Mar 7, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	6,368	$20.77	$132,263.36	-2.2%	+12.1%	-2.6%
Mar 5, 2024	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sale+OE	4,131	$21.41	$88,461.23	-5.3%	+4.9%	-4.4%
Dec 28, 2023	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	13,724	$21.99	$301,773.57	-2.3%	-5.1%	+19.6%
Dec 26, 2023	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	11,869	$21.95	$260,465.97	-1.9%	-5.1%	+23.6%
Dec 21, 2023	CSTL Castle Biosciences Inc	Pres. &Chief Exec. Officer	Sell	18,482	$21.29	$393,445.87	-2.8%	-6.6%	+26.3%