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 41 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 (page 2)
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 20, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 1,339 | $22.44 | $30,047.16 | -2.1% | +77.6% | - | |
| Oct 2, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 1,339 | $22.58 | $30,234.62 | -2.0% | +75.0% | - | |
| Sep 17, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 1,339 | $21.97 | $29,419.17 | -2.0% | +79.0% | - | |
| Sep 2, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 1,339 | $23.93 | $32,042.27 | -2.0% | +61.6% | - | |
| Aug 15, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 1,339 | $20.04 | $26,833.56 | -1.9% | +69.8% | - | |
| Aug 13, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 43,019 | $19.50 | $839,042.58 | -38.2% | +80.2% | - | |
| Jun 27, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 22,576 | $20.30 | $458,292.80 | -11.0% | +11.7% | - | |
| Apr 21, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 5,644 | $21.52 | $121,447.59 | -2.7% | -20.9% | - | |
| Apr 9, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 5,644 | $20.19 | $113,931.95 | -1.3% | -1.7% | +16.5% | |
| Mar 26, 2025 | CSTL Castle Biosciences Inc | Pres. &Chief Exec. Officer | Sell | 5,644 | $20.30 | $114,573.20 | -2.5% | -4.6% | +23.0% |