Insiders / Maetzold Derek J / Activity
Activity — Maetzold Derek J
110 moves.
| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Apr 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -10.00% | 2,502 <0.01% of shares | low |
| Apr 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -10.00% | 2,502 <0.01% of shares | low |
| Apr 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -10.00% | 2,502 <0.01% of shares | low |
| Apr 6, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -9.09% | 2,780 <0.01% of shares | low |
| Apr 6, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -9.09% | 2,780 <0.01% of shares | low |
| Apr 6, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -9.09% | 2,780 <0.01% of shares | low |
| Apr 6, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $7.0K | -278 -9.09% | 2,780 <0.01% of shares | low |
| Feb 4, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $6.6K | -171 -0.20% | 83,698 0.27% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $6.4K | -322 -0.70% | 45,816 0.15% of shares | low |
| Jun 1, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.8K | -278 -14.29% | 1,668 <0.01% of shares | low |
| Jun 1, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.8K | -278 -14.29% | 1,668 <0.01% of shares | low |
| Jun 1, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.8K | -278 -14.29% | 1,668 <0.01% of shares | low |
| Jun 1, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.8K | -278 -14.29% | 1,668 <0.01% of shares | low |
| Jun 15, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.7K | -278 -2.15% | 12,646 0.04% of shares | low |
| Jun 15, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.7K | -278 -2.15% | 12,646 0.04% of shares | low |
| Jun 15, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.7K | -278 -2.15% | 12,646 0.04% of shares | low |
| Jun 15, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.7K | -278 -2.15% | 12,646 0.04% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.5K | -273 -0.70% | 38,941 0.13% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.2K | -237 -9.47% | 2,265 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.2K | -237 -9.47% | 2,265 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.2K | -237 -9.47% | 2,265 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $5.2K | -237 -9.47% | 2,265 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $4.5K | -198 -0.43% | 46,138 0.15% of shares | low |
| May 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $4.3K | -212 -9.82% | 1,946 <0.01% of shares | low |
| May 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $4.3K | -212 -9.82% | 1,946 <0.01% of shares | low |
| May 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $4.3K | -212 -9.82% | 1,946 <0.01% of shares | low |
| May 21, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $4.3K | -212 -9.82% | 1,946 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $3.8K | -168 -0.43% | 39,214 0.13% of shares | low |
| Mar 16, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $3.4K | -126 -0.31% | 40,779 0.13% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $2.6K | -130 -0.60% | 21,479 0.07% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | -66 -2.97% | 2,158 <0.01% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | -66 -2.97% | 2,158 <0.01% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | -66 -2.97% | 2,158 <0.01% of shares | low |
| May 20, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | -66 -2.97% | 2,158 <0.01% of shares | low |
| Jun 15, 2026 | Exercise | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | +550 +2.56% | 22,029 0.07% of shares | low |
| Apr 21, 2026 | Exercise | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | +550 +2.56% | 22,029 0.07% of shares | low |
| Mar 26, 2026 | Exercise | CSTL Castle Biosciences, Inc. Common Stock | $1.3K | +550 +2.56% | 22,029 0.07% of shares | low |
| May 21, 2026 | Exercise | CSTL Castle Biosciences, Inc. Common Stock | $1.0K | +420 +1.96% | 21,899 0.07% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $926 | -41 -1.81% | 2,224 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $926 | -41 -1.81% | 2,224 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $926 | -41 -1.81% | 2,224 <0.01% of shares | low |
| May 7, 2026 | Sell | CSTL Castle Biosciences, Inc. Common Stock | $926 | -41 -1.81% | 2,224 <0.01% of shares | low |
| Jun 1, 2026 | Exercise | CSTL Castle Biosciences, Inc. Common Stock | $488 | +204 +0.95% | 21,683 0.07% of shares | low |
| May 20, 2026 | Exercise | CSTL Castle Biosciences, Inc. Common Stock | $311 | +130 +0.61% | 21,609 0.07% of shares | low |
| Jan 12, 2026 | Grant | CSTL Castle Biosciences, Inc. Common Stock | $0 | +62K +210.82% | 91,732 0.30% of shares | low |
| Jun 15, 2026 | Exercise | CSTL Castle Biosciences, Inc. Stock option (right to buy) | — | -550 -0.60% | 91,881 0.30% of shares | low |
| Jun 1, 2026 | Exercise | CSTL Castle Biosciences, Inc. Stock option (right to buy) | — | -6K -6.11% | 92,431 0.30% of shares | low |
| Jun 1, 2026 | Exercise | CSTL Castle Biosciences, Inc. Stock option (right to buy) | — | -204 -100.00% | 0 0.00% of shares | low |
| May 21, 2026 | Exercise | CSTL Castle Biosciences, Inc. Stock option (right to buy) | — | -420 -67.31% | 204 <0.01% of shares | low |
| May 20, 2026 | Exercise | CSTL Castle Biosciences, Inc. Stock option (right to buy) | — | -130 -17.24% | 624 <0.01% of shares | low |