Maetzold Derek J
Pres. &Chief Exec. Officer
1 company
Insider Signal Score
69
StrongTrades 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 15 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
Transaction History
Showing 10 filings
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Jan 6, 2026 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 4,017 | $38.76 | $155,693.56 | -6.2% | -38.3% | - | |
| Dec 22, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 830 | $40.35 | $33,490.50 | -2.4% | -37.8% | - | |
| Dec 17, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 509 | $40.04 | $20,380.36 | -1.5% | -34.7% | - | |
| Dec 16, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 32,346 | $38.69 | $1,251,399.69 | -19.8% | -33.9% | - | |
| Dec 4, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 1,339 | $40.03 | $53,600.17 | -3.4% | -28.9% | - | |
| Dec 2, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 2,678 | $39.23 | $105,057.94 | -6.4% | -28.5% | - | |
| Nov 26, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 4,258 | $40.09 | $170,703.22 | -9.3% | -25.0% | - | |
| Nov 25, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 5,115 | $40.05 | $204,850.64 | -10.0% | -27.5% | - | |
| Nov 18, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 2,678 | $34.02 | $91,105.56 | -5.0% | -0.4% | - | |
| Nov 5, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 9,373 | $30.84 | $289,078.86 | -5.3% | +16.0% | - |
Page 1Next →