Derek J Maetzold
Officer at CSTL
Data refreshed: Aug 26, 2026, 11:43 PM UTC
Total filings
58
Buys
0
$0
Sells
50
$2.9M
Grants & other
0
$0
Recent filings
| Filed | Symbol | Type | Qty | Value |
|---|---|---|---|---|
| Aug 18, 2026 | CSTL Castle Biosciences Inc | OTHER | 1,100 | $3K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 1,100 | $33K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 2,714 | $81K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 2,306 | $69K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $8K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $8K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $8K |
| Aug 18, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $8K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | OTHER | 20,356 | $49K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 8,421 | $259K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 3,374 | $104K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 2,866 | $88K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 11,935 | $374K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 4,782 | $150K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 4,063 | $127K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | OTHER | 2,546 | $6K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 2,546 | $78K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 556 | $17K |
| Aug 6, 2026 | CSTL Castle Biosciences Inc | SELL | 473 | $15K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | OTHER | 6,480 | $15K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | SELL | 6,480 | $195K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | SELL | 1,983 | $60K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | SELL | 1,690 | $51K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | OTHER | 10,664 | $25K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | SELL | 10,664 | $324K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | SELL | 4,232 | $128K |
| Aug 4, 2026 | CSTL Castle Biosciences Inc | SELL | 3,597 | $109K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | OTHER | 6,214 | $15K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 5,982 | $144K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 1,307 | $32K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 1,110 | $27K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 268 | $6K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 268 | $6K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 268 | $6K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 268 | $6K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 232 | $6K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 50 | $1K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 43 | $1K |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 10 | $251 |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 10 | $251 |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 10 | $251 |
| Jul 29, 2026 | CSTL Castle Biosciences Inc | SELL | 10 | $251 |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | OTHER | 550 | $1K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 550 | $13K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 1,357 | $31K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $6K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 1,153 | $26K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $6K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $6K |
| Jul 16, 2026 | CSTL Castle Biosciences Inc | SELL | 278 | $6K |