MAETZOLD DEREK J
56 Form 4 · free tier: 48h delay
Recent Form 4 slice from EDGAR — up to 30 filings (not a full archive).
For informational purposes only. Not investment advice. Data is aggregated from public SEC and congressional disclosures. Nothing on this site is a recommendation to buy or sell any security. Public disclosure of a trade is not evidence of wrongdoing or insider trading.
Recent Form 4 trades
Open-market purchases and sales
CASTLE BIOSCIENCES INC
CSTL · Trade · Nov 2, 2026 · Filed · Nov 4, 2026 · filed 2 days after trade
$523,330
14,496 sh · 6 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Oct 19, 2026 · Filed · Oct 21, 2026 · filed 2 days after trade
$462,567
14,496 sh · 3 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Oct 5, 2026 · Filed · Oct 7, 2026 · filed 2 days after trade
$515,565
14,496 sh · 3 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Sep 21, 2026 · Filed · Sep 23, 2026 · filed 2 days after trade
$512,202
14,496 sh · 3 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Sep 11, 2026 · Filed · Sep 15, 2026 · filed 4 days after trade
$464,870
14,518 sh · 6 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Aug 28, 2026 · Filed · Sep 1, 2026 · filed 4 days after trade
$588,448
17,726 sh · 8 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Aug 14, 2026 · Filed · Aug 18, 2026 · filed 4 days after trade
$192,068
6,398 sh · 4 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Aug 5, 2026 · Filed · Aug 6, 2026
$109,685
3,575 sh · 3 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Aug 4, 2026 · Filed · Aug 6, 2026 · filed 2 days after trade
$1,102,545
35,441 sh · 6 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Aug 3, 2026 · Filed · Aug 4, 2026
$561,318
18,493 sh · 3 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Jul 31, 2026 · Filed · Aug 4, 2026 · filed 4 days after trade
$306,133
10,153 sh · 3 tx
CASTLE BIOSCIENCES INC
CSTL · Trade · Jul 27, 2026 · Filed · Jul 29, 2026 · filed 2 days after trade
$217,530
9,002 sh · 8 tx