Maetzold Derek J
Pres. & Chief Exec. Officer · 8 recent trades · Sold $4.4M
Maetzold Derek J (Pres. & Chief Exec. Officer) has 8 recent open-market trades disclosed in SEC Form 4 filings. Total sells: $4.4M. Most recent tickers: CSTL.
| Date | Stock | Action | Value |
|---|---|---|---|
| 2026-09-21 | CSTL CASTLE BIOSCIENCES INC | Sell | $512K |
| 2026-09-11 | CSTL CASTLE BIOSCIENCES INC | Sell | $465K |
| 2026-08-28 | CSTL CASTLE BIOSCIENCES INC | Sell | $616K |
| 2026-08-14 | CSTL CASTLE BIOSCIENCES INC | Sell | $217K |
| 2026-08-05 | CSTL CASTLE BIOSCIENCES INC | Sell | $1.2M |
| 2026-08-03 | CSTL CASTLE BIOSCIENCES INC | Sell | $867K |
| 2026-07-27 | CSTL CASTLE BIOSCIENCES INC | Sell | $238K |
| 2026-07-01 | CSTL CASTLE BIOSCIENCES INC | Sell | $239K |
Open-market insider buys and sells disclosed by Maetzold Derek J in SEC Form 4 filings (excludes routine option/RSU administration). All insider trades →
Related ▾
FAQ ▾
Which stocks has Maetzold Derek J traded?
Recent Form 4 activity in: CSTL.
How many insider trades has Maetzold Derek J disclosed?
8 recent open-market transactions on file (SEC Form 4).
Is Maetzold Derek J buying or selling?
Sells total $4.4M.
Where does this data come from?
SEC Form 4 insider-transaction filings (open-market buys and sells).
Sourced from SEC Form 4 insider filings · Not investment advice ▾
Data as of 2026-09-21 · Methodology
Open-market insider transactions (Form 4 codes P/S) as reported to the SEC.
Published by WealthFile · Not investment advice.