MAETZOLD DEREK J

CSTL

MAETZOLD DEREK J serves as director, officer: Pres. & Chief Exec. Officer at Castle Biosciences, Inc. (CSTL). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

148 trades

$59.16M

Net Position

Net Seller

$59.16M

Companies Traded

CSTL

Active Period

Feb 2021 – Apr 2026

148 total trades

Most Recent

Sell CSTL

Apr 23, 2026 · $83.8K

MAETZOLD DEREK J's Insider Trading at Castle Biosciences, Inc. (CSTL)

Buys

0 · $0.00

Sells

50 · $7.77M

Total Shares Bought

Total Shares Sold

344,735

CSTL Price Chart

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Date	Type	Shares	Avg Price	Value
Aug 29, 2024	Sell	3,046	$30.08	$91.6K
Aug 23, 2024	Sell	2,052	$30.09	$61.7K
Aug 9, 2024	Sell	21,828	$26.83	$585.6K
Jun 3, 2024	Sell	3,966	$23.40	$92.8K
May 14, 2024	Sell	3,966	$24.27	$96.2K
May 6, 2024	Sell	3,966	$24.72	$98.0K
Apr 23, 2024	Sell	773	$20.11	$15.5K
Apr 12, 2024	Sell	3,579	$20.35	$72.8K
Apr 3, 2024	Sell	3,966	$21.70	$86.1K
Mar 20, 2024	Sell	4,352	$20.28	$88.3K
Mar 7, 2024	Sell	3,982	$20.77	$82.7K
Mar 4, 2024	Sell	4,131	$21.41	$88.5K
Dec 27, 2023	Sell	12,878	$21.99	$283.2K
Dec 22, 2023	Sell	11,135	$21.95	$244.4K
Dec 20, 2023	Sell	17,342	$21.29	$369.2K
Dec 18, 2023	Sell	13,686	$20.58	$281.6K
Dec 14, 2023	Sell	18,371	$20.73	$380.8K
Dec 12, 2023	Sell	6,289	$20.19	$127.0K
Dec 8, 2023	Sell	21,548	$20.16	$434.4K
Dec 6, 2023	Sell	75	$20.02	$1.5K
Dec 1, 2023	Sell	7,129	$20.07	$143.1K
Nov 29, 2023	Sell	15,841	$20.10	$318.5K
Nov 24, 2023	Sell	443	$20.03	$8.9K
Nov 20, 2023	Sell	4,061	$20.03	$81.3K
Sep 1, 2023	Sell	1,108	$20.05	$22.2K
Aug 30, 2023	Sell	8,830	$20.05	$177.0K
Aug 3, 2023	Sell	444	$20.10	$8.9K
Jul 7, 2023	Sell	14,655	$20.04	$293.7K
May 15, 2023	Sell	4,885	$23.17	$113.2K
May 4, 2023	Sell	5,582	$21.64	$120.8K
Apr 12, 2023	Sell	4,885	$22.65	$110.7K
Apr 3, 2023	Sell	5,582	$22.14	$123.6K
Mar 14, 2023	Sell	4,885	$20.95	$102.4K
Mar 6, 2023	Sell	4,885	$24.71	$120.7K
Feb 10, 2023	Sell	5,582	$26.18	$146.1K
Feb 1, 2023	Sell	5,590	$27.11	$151.5K
Jan 3, 2023	Sell	7,833	$22.90	$179.4K
Dec 19, 2022	Sell	7,833	$23.07	$180.7K
Dec 9, 2022	Sell	6,315	$22.32	$141.0K
Dec 5, 2022	Sell	7,833	$24.79	$194.2K
Nov 21, 2022	Sell	8,208	$20.76	$170.4K
Nov 7, 2022	Sell	8,204	$20.35	$166.9K
Oct 24, 2022	Sell	7,833	$20.46	$160.3K
Oct 11, 2022	Sell	496	$24.05	$11.9K
Oct 10, 2022	Sell	8,034	$24.28	$195.1K
Oct 4, 2022	Sell	921	$30.03	$27.7K
Sep 26, 2022	Sell	8,400	$24.03	$201.8K
Sep 12, 2022	Sell	8,019	$29.15	$233.7K
Aug 29, 2022	Sell	9,464	$29.55	$279.7K
Aug 16, 2022	Sell	24	$32.83	$787.92