InsiderTrades

MAETZOLD DEREK J

SEC CIK 1239501 · EDGAR

Buying vs selling by month open-market trades, last 60 months, CSTL
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
CSTLCASTLE BIOSCIENCES INCPres, Chief Exec. Off, Dir 30.1K — $44.70M 2672021-07-072026-09-21

Transactions 267

Purchase Sale Sale after option exercise All abbreviations

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X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
DT 2026-09-23 16:27 2026-09-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +8,580 30.1K +40% +$20.5K
DT 2026-09-23 16:27 2026-09-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $35.33 -8,580 21.5K -29% -$303.2K
DMTI 2026-09-23 16:27 2026-09-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $35.33 -5,916 9,550 -38% -$209.0K
DT 2026-09-15 16:08 2026-09-11 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +8,584 30.1K +40% +$20.5K
DMT 2026-09-15 16:08 2026-09-11 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $32.02 -8,584 21.5K -29% -$274.9K
DMTI 2026-09-15 16:08 2026-09-11 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $32.02 -5,934 12.3K -33% -$190.0K
DT 2026-09-01 16:12 2026-08-28 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +12.4K 33.9K +58% +$29.7K
DMT 2026-09-01 16:12 2026-08-28 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $33.20 -12.4K 21.5K -37% -$412.6K
DMTI 2026-09-01 16:12 2026-08-28 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $33.20 -6,132 11.3K -35% -$203.6K
DT 2026-08-18 16:09 2026-08-14 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +1,100 22.6K +5% +$2,629
DT 2026-08-18 16:09 2026-08-14 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $30.02 -1,100 21.5K -5% -$33.0K
DMTI 2026-08-18 16:09 2026-08-14 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $30.02 -6,132 11.5K -35% -$184.1K
DMT 2026-08-06 16:14 2026-08-04+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +22.9K 24.0K +2,039% +$54.7K
DMT 2026-08-06 16:14 2026-08-04+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $31.06 -22.9K 21.5K -52% -$711.4K
DMTI 2026-08-06 16:14 2026-08-04+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $31.08 -16.1K 19.6K -45% -$500.9K
DMT 2026-08-04 16:35 2026-07-31+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +17.1K 32.1K +114% +$41.0K
DMT 2026-08-04 16:35 2026-07-31+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $30.28 -17.1K 21.5K -44% -$519.1K
DMTI 2026-08-04 16:35 2026-07-31+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $30.29 -11.5K 27.0K -30% -$348.4K
DT 2026-07-29 16:09 2026-07-27 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +6,214 27.7K +29% +$14.9K
DMT 2026-07-29 16:09 2026-07-27 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $24.16 -6,214 21.5K -22% -$150.2K
DMTI 2026-07-29 16:09 2026-07-27 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $24.16 -3,622 11.8K -23% -$87.5K
DT 2026-07-16 16:16 2026-07-14 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +550 22.0K +3% +$1,314
DT 2026-07-16 16:16 2026-07-14 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $22.92 -550 21.5K -2% -$12.6K
DMTI 2026-07-16 16:16 2026-07-14 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $22.92 -3,622 12.1K -23% -$83.0K
DT 2026-07-06 16:25 2026-07-01 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +6,214 27.7K +29% +$14.9K
DT 2026-07-06 16:25 2026-07-01 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $24.29 -6,214 21.5K -22% -$150.9K
DMTI 2026-07-06 16:25 2026-07-01 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $24.29 -3,622 12.4K -23% -$88.0K
DT 2026-06-17 17:39 2026-06-15 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +550 22.0K +3% +$1,314
DT 2026-06-17 17:39 2026-06-15 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.66 -550 21.5K -2% -$11.4K
DMTI 2026-06-17 17:39 2026-06-15 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.66 -3,622 12.6K -22% -$74.8K
DMT 2026-06-03 16:15 2026-06-01 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +6,214 27.7K +29% +$14.9K
DT 2026-06-03 16:15 2026-06-01 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.86 -6,214 21.5K -22% -$129.6K
DMTI 2026-06-03 16:15 2026-06-01 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.86 -3,622 1,668 -68% -$75.5K
DMT 2026-05-22 16:12 2026-05-20+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +550 21.9K +3% +$1,314
DMT 2026-05-22 16:12 2026-05-20+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.15 -550 21.5K -2% -$11.1K
DMTI 2026-05-22 16:12 2026-05-20+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.15 -3,622 1,946 -65% -$73.0K
DT 2026-05-11 16:06 2026-05-07 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +6,214 27.7K +29% +$14.9K
DMT 2026-05-11 16:06 2026-05-07 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $22.15 -6,214 21.5K -22% -$137.7K
DMTI 2026-05-11 16:06 2026-05-07 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $22.15 -3,622 2,224 -62% -$80.2K
DT 2026-04-23 16:16 2026-04-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +550 22.0K +3% +$1,314
DT 2026-04-23 16:16 2026-04-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.10 -550 21.5K -2% -$13.8K
DMTI 2026-04-23 16:16 2026-04-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.10 -3,622 2,502 -59% -$90.9K
DT 2026-04-08 16:34 2026-04-06 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +6,214 27.7K +29% +$14.9K
DT 2026-04-08 16:34 2026-04-06 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.03 -6,214 21.5K -22% -$155.5K
DMTI 2026-04-08 16:34 2026-04-06 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.03 -3,622 2,780 -57% -$90.7K
D 2026-03-30 2026-03-26 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +550 22.0K +3% +$1,314
D 2026-03-30 2026-03-26 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.55 -550 21.5K -2% -$14.1K
DMI 2026-03-30 2026-03-26 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.55 -3,622 42.7K -8% -$92.5K
M 2026-03-19 2026-03-17+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $25.91 -19.3K 21.5K -47% -$500.1K
M 2026-03-17 2026-03-13+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $25.74 -30.8K 40.8K -43% -$792.4K
DMI 2026-03-13 2026-03-11 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $26.11 -3,636 3,336 -52% -$94.9K
DM 2026-03-13 2026-03-11+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $25.63 -40.5K 71.6K -36% -$1.04M
D 2026-03-13 2026-03-11 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $2.39 +6,226 112.0K +6% +$14.9K
D 2026-03-05 2026-03-04 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx — +59.1K 123.8K +91% —
DM 2026-03-05 2026-03-03+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir F - Tax $27.86 -37.0K 105.8K -26% -$1.03M
M 2026-02-05 2026-02-03+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $39.52 -4,017 83.9K -5% -$158.7K
2026-01-22 2026-01-20 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $40.01 -4,017 87.7K -4% -$160.7K
D 2026-01-14 2026-01-12 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir A - Grant $0.00 +62.2K 91.7K +211% $0
M 2026-01-07 2026-01-05+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $38.76 -4,017 29.5K -12% -$155.7K
2025-12-29 2025-12-22 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $40.35 -830 33.5K -2% -$33.5K
2025-12-19 2025-12-17 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $40.04 -509 34.4K -1% -$20.4K
M 2025-12-17 2025-12-15+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $38.69 -32.3K 34.9K -48% -$1.25M
DM 2025-12-11 2025-12-09+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx — +48.9K 73.3K +201% —
DM 2025-12-11 2025-12-09+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir F - Tax $38.18 -19.3K 57.9K -25% -$735.0K
2025-12-08 2025-12-04 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $40.03 -1,339 37.5K -3% -$53.6K
2025-12-04 2025-12-02 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $39.23 -2,678 38.9K -6% -$105.1K
2025-12-01 2025-11-26 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $40.09 -4,258 41.6K -9% -$170.7K
2025-11-26 2025-11-25 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $40.05 -5,115 45.8K -10% -$204.9K
2025-11-20 2025-11-18 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $34.02 -2,678 50.9K -5% -$91.1K
M 2025-11-06 2025-11-04+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $30.84 -9,373 56.5K -14% -$289.1K
2025-10-23 2025-10-20 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $22.44 -1,339 63.0K -2% -$30.0K
2025-10-06 2025-10-02 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $22.58 -1,339 64.3K -2% -$30.2K
2025-09-19 2025-09-17 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $21.97 -1,339 65.7K -2% -$29.4K
2025-09-04 2025-09-02 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $23.93 -1,339 67.0K -2% -$32.0K
2025-08-19 2025-08-15 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.04 -1,339 68.3K -2% -$26.8K
2025-08-15 2025-08-13 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $19.50 -43.0K 69.7K -38% -$838.9K
D 2025-08-12 2025-08-08 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx $0.00 +67.0K 136.7K +96% $0
D 2025-08-12 2025-08-08 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir F - Tax $19.36 -24.0K 112.7K -18% -$464.1K
2025-07-01 2025-06-27 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.30 -4,944 69.7K -7% -$100.4K
MI 2025-07-01 2025-06-27 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.30 -17.6K 52.9K -25% -$357.9K
MI 2025-04-23 2025-04-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $21.52 -4,408 4,275 -51% -$94.9K
2025-04-23 2025-04-21 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $21.52 -1,236 74.6K -2% -$26.6K
MI 2025-04-10 2025-04-08+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.19 -4,408 4,440 -50% -$89.0K
M 2025-04-10 2025-04-08+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.19 -1,236 76.9K -2% -$25.0K
MI 2025-03-28 2025-03-26 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.30 -4,408 55.4K -7% -$89.5K
2025-03-28 2025-03-26 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.30 -1,236 77.1K -2% -$25.1K
MI 2025-03-11 2025-03-07 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.11 -4,408 4,770 -48% -$88.7K
M 2025-03-11 2025-03-07+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $20.06 -24.8K 82.6K -23% -$497.0K
DMI 2025-03-06 2025-03-04 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.86 -4,440 69.1K -6% -$92.6K
D 2025-03-06 2025-03-04 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx — +31.1K 111.9K +38% —
D 2025-03-06 2025-03-04 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale+OE $20.86 -1,247 103.1K -1% -$26.0K
D 2025-03-06 2025-03-04 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir F - Tax $22.23 -7,576 104.4K -7% -$168.4K
M 2025-01-15 2025-01-13 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $28.03 -986 80.8K -1% -$27.6K
MI 2025-01-15 2025-01-13 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $28.03 -1,579 71.3K -2% -$44.3K
MI 2025-01-08 2025-01-06+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $29.66 -4,731 61.0K -7% -$140.3K
M 2025-01-08 2025-01-06+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $29.66 -2,958 81.8K -3% -$87.7K
M 2024-12-19 2024-12-17 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $28.34 -9,364 84.8K -10% -$265.3K
MI 2024-12-17 2024-12-13 CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $28.64 -1,579 62.5K -2% -$45.2K
M 2024-12-17 2024-12-13+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir S - Sale $28.73 -24.5K 108.5K -18% -$705.0K
DM 2024-12-11 2024-12-09+ CSTL CASTLE BIOSCIENCES INC MAETZOLD DEREK J Pres, Chief Exec. Off, Dir M - OptEx — +54.3K 111.4K +95% —