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START FREE TRIAL →Derek J Maetzold, Pres. & Chief Exec. Officer, is a corporate insider tracked by InsiderTape across 1 company. The public record shows 165 open-market SEC Form 4 transactions: 0 purchases worth $0 and 165 sales worth $19.7M, reported from Jul 30, 21 to Jul 14, 26. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 14, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.4K | $22.92 | $31K |
| Jul 1, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 6.2K | $24.29 | $151K |
| Jun 15, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.4K | $20.66 | $28K |
| Jun 1, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 6.2K | $20.86 | $130K |
| May 21, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.0K | $20.20 | $21K |
| May 20, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 322 | $20.00 | $6K |
| May 7, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 5.3K | $22.59 | $117K |
| Apr 21, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.4K | $25.10 | $34K |
| Apr 6, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 6.2K | $25.03 | $156K |
| Mar 26, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.4K | $25.55 | $35K |
| Mar 18, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 650 | $25.39 | $17K |
| Mar 17, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 18.6K | $25.93 | $484K |
| Mar 16, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 17.4K | $26.68 | $453K |
| Mar 13, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 13.2K | $25.45 | $336K |
| Mar 12, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 23.2K | $25.28 | $586K |
| Mar 11, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 17.3K | $26.11 | $452K |
| Feb 4, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 646 | $38.61 | $24K |
| Feb 3, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 3.2K | $39.91 | $128K |
| Jan 20, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 4.0K | $40.01 | $161K |
| Jan 6, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $40.10 | $54K |
| Jan 5, 26 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.7K | $38.09 | $102K |
| Dec 22, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 830 | $40.35 | $33K |
| Dec 17, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 509 | $40.04 | $20K |
| Dec 16, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 12.8K | $38.55 | $494K |
| Dec 15, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 18.5K | $39.30 | $717K |
| Dec 4, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $40.03 | $54K |
| Dec 2, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.7K | $39.23 | $105K |
| Nov 26, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 4.3K | $40.09 | $171K |
| Nov 25, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 5.1K | $40.05 | $205K |
| Nov 18, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.7K | $34.02 | $91K |
| Nov 5, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.7K | $31.85 | $85K |
| Nov 4, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 6.5K | $31.12 | $196K |
| Oct 20, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $22.44 | $30K |
| Oct 2, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $22.58 | $30K |
| Sep 17, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $21.97 | $29K |
| Sep 2, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $23.93 | $32K |
| Aug 15, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.3K | $20.04 | $27K |
| Aug 13, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 43.0K | $19.50 | $839K |
| Jun 27, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 8.1K | $20.30 | $164K |
| Apr 21, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $21.52 | $43K |
| Apr 9, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.7K | $20.22 | $34K |
| Apr 8, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 348 | $20.03 | $7K |
| Mar 26, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $20.30 | $41K |
| Mar 10, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.1K | $19.52 | $42K |
| Mar 7, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 20.5K | $20.74 | $411K |
| Mar 4, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $20.86 | $42K |
| Jan 13, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 556 | $29.48 | $15K |
| Jan 7, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 243 | $30.14 | $7K |
| Jan 6, 25 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.7K | $30.18 | $52K |
| Dec 17, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 9.3K | $28.76 | $262K |
| Dec 16, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 11.1K | $28.83 | $319K |
| Dec 13, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 10.2K | $29.16 | $289K |
| Dec 5, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $31.35 | $62K |
| Nov 12, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $34.15 | $67K |
| Nov 4, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 1.9K | $33.16 | $63K |
| Oct 14, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $32.27 | $64K |
| Oct 8, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 986 | $30.27 | $30K |
| Oct 4, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 986 | $28.73 | $28K |
| Sep 16, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 2.0K | $30.97 | $61K |
| Sep 11, 24 | CSTLCASTLE BIOSCIENCES INC | SELL | 996 | $30.32 | $30K |