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Derek J Maetzold is Pres. & Chief Exec. Officer at Castle Biosciences. OQRO lists 195 transactions filed with the SEC under this name, the latest on Nov 4, 2026, each linked to the official Form 4.
Pres. & Chief Exec. Officer
Disclosures on record
195
Companies involved
1
Castle BiosciencesCSTL
195 disclosures · Oct 2024 – Nov 2026 · 191 sold
Nov 2, 2026Sold~$272Kdisclosed Nov 4
DetailsOfficial recordNov 2, 2026Sold~$101Kdisclosed Nov 4
DetailsNov 2, 2026Sold~$86Kdisclosed Nov 4
DetailsOfficial recordNov 2, 2026Sold~$38Kdisclosed Nov 4
DetailsOfficial recordNov 2, 2026Sold~$14Kdisclosed Nov 4
DetailsOfficial recordNov 2, 2026Sold~$12Kdisclosed Nov 4
DetailsOfficial recordOct 19, 2026Sold~$274Kdisclosed Oct 21
DetailsOfficial recordOct 19, 2026Sold~$102Kdisclosed Oct 21
DetailsOfficial recordOct 19, 2026Sold~$87Kdisclosed Oct 21
DetailsOfficial recordOct 5, 2026Sold~$305Kdisclosed Oct 8
DetailsOfficial recordOct 5, 2026Sold~$114Kdisclosed Oct 8
DetailsOfficial recordOct 5, 2026Sold~$97Kdisclosed Oct 8
DetailsOfficial recordOct 5, 20268,165disclosed Oct 8
DetailsOfficial recordOct 5, 20268,165disclosed Oct 8
DetailsOfficial recordSep 21, 2026Sold~$303Kdisclosed Sep 24
DetailsOfficial recordSep 21, 2026Sold~$113Kdisclosed Sep 24
DetailsOfficial recordSep 21, 2026Sold~$96Kdisclosed Sep 24
DetailsOfficial recordSep 21, 20268,580disclosed Sep 24
DetailsOfficial recordSep 21, 20268,580disclosed Sep 24
DetailsOfficial recordSep 17, 2025Sold~$29Kdisclosed Sep 19
DetailsOfficial recordSep 2, 2025Sold~$32Kdisclosed Sep 4
DetailsOfficial recordAug 15, 2025Sold~$27Kdisclosed Aug 19
DetailsOfficial recordAug 13, 2025Sold~$839Kdisclosed Aug 15
DetailsOfficial recordJun 27, 2025Sold~$164Kdisclosed Jul 1
DetailsOfficial recordJun 27, 2025Sold~$141Kdisclosed Jul 1
DetailsOfficial recordJun 27, 2025Sold~$100Kdisclosed Jul 1
DetailsOfficial recordJun 27, 2025Sold~$13Kdisclosed Jul 1
DetailsOfficial recordJun 27, 2025Sold~$13Kdisclosed Jul 1
DetailsOfficial recordJun 27, 2025Sold~$13Kdisclosed Jul 1
DetailsOfficial recordJun 27, 2025Sold~$13Kdisclosed Jul 1
DetailsOfficial recordApr 21, 2025Sold~$43Kdisclosed Apr 23
DetailsOfficial recordApr 21, 2025Sold~$37Kdisclosed Apr 23
DetailsOfficial recordApr 21, 2025Sold~$27Kdisclosed Apr 23
DetailsOfficial recordApr 21, 2025Sold~$3.6Kdisclosed Apr 23
DetailsOfficial recordApr 21, 2025Sold~$3.6Kdisclosed Apr 23
DetailsOfficial recordApr 21, 2025Sold~$3.6Kdisclosed Apr 23
DetailsOfficial recordApr 21, 2025Sold~$3.6Kdisclosed Apr 23
DetailsOfficial recordApr 9, 2025Sold~$34Kdisclosed Apr 10
DetailsOfficial recordApr 9, 2025Sold~$29Kdisclosed Apr 10
DetailsOfficial recordApr 9, 2025Sold~$21Kdisclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$601disclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$561disclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$561disclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$561disclosed Apr 10
DetailsOfficial recordApr 9, 2025Sold~$2.7Kdisclosed Apr 10
DetailsOfficial recordApr 9, 2025Sold~$2.8Kdisclosed Apr 10
DetailsOfficial recordApr 9, 2025Sold~$2.8Kdisclosed Apr 10
DetailsOfficial recordApr 9, 2025Sold~$2.8Kdisclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$7Kdisclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$4.3Kdisclosed Apr 10
DetailsOfficial recordApr 8, 2025Sold~$6Kdisclosed Apr 10
DetailsOfficial recordMar 26, 2025Sold~$41Kdisclosed Mar 28
DetailsOfficial recordMar 26, 2025Sold~$35Kdisclosed Mar 28
DetailsOfficial recordMar 26, 2025Sold~$25Kdisclosed Mar 28
DetailsOfficial recordMar 26, 2025Sold~$3.3Kdisclosed Mar 28
DetailsOfficial recordMar 26, 2025Sold~$3.3Kdisclosed Mar 28
DetailsOfficial recordMar 26, 2025Sold~$3.3Kdisclosed Mar 28
DetailsOfficial recordMar 26, 2025Sold~$3.3Kdisclosed Mar 28
DetailsOfficial recordMar 7, 2025Sold~$411Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$44Kdisclosed Mar 11
DetailsOfficial recordMar 10, 2025Sold~$42Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$37Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$31Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$3Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$3Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$3Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$3.9Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$3.4Kdisclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$311disclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$311disclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$311disclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$311disclosed Mar 11
DetailsOfficial recordMar 7, 2025Sold~$3Kdisclosed Mar 11
DetailsOfficial recordMar 4, 2025Sold~$42Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$36Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$26Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$3.5Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$3.5Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$3.6Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$3.5Kdisclosed Mar 6
DetailsOfficial recordJan 13, 2025Sold~$15Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$11Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$7.3Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$2.3Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$2.3Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$2.3Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$2.3Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$7.8Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$5.8Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$5.5Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$1.7Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$1.7Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$1.7Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$1.7Kdisclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$914disclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$472disclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$442disclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$147disclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$118disclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$147disclosed Jan 15
DetailsOfficial recordJan 13, 2025Sold~$118disclosed Jan 15
DetailsOfficial recordJan 6, 2025Sold~$52Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$27Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$25Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$19Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$2.9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$2.9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$2.9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$4.7Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$4.3Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$1.4Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$1.4Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$1.4Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$1.4Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$2.9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$9.2Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$9.8Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$8Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$7.9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$7.9Kdisclosed Jan 8
DetailsOfficial recordJan 6, 2025Sold~$7.9Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$7.3Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$3.7Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$3.5Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$1.1Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$1.1Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$1.1Kdisclosed Jan 8
DetailsOfficial recordJan 7, 2025Sold~$1.1Kdisclosed Jan 8
DetailsOfficial recordDec 17, 2024Sold~$262Kdisclosed Dec 19
DetailsOfficial recordDec 17, 2024Sold~$3.2Kdisclosed Dec 19
DetailsOfficial recordDec 16, 2024Sold~$319Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$289Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$97Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$11Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$10Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$3.2Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$3.2Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$3.2Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$3.4Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$3.2Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$1.1Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$1.1Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$1.1Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$1.1Kdisclosed Dec 17
DetailsOfficial recordDec 13, 2024Sold~$3.6Kdisclosed Dec 17
DetailsOfficial recordDec 5, 2024Sold~$62Kdisclosed Dec 9
DetailsOfficial recordDec 5, 2024Sold~$32Kdisclosed Dec 9
DetailsOfficial recordDec 5, 2024Sold~$30Kdisclosed Dec 9
DetailsOfficial recordDec 5, 2024Sold~$9.4Kdisclosed Dec 9
DetailsOfficial recordDec 5, 2024Sold~$9.4Kdisclosed Dec 9
DetailsOfficial recordDec 5, 2024Sold~$9.4Kdisclosed Dec 9
DetailsOfficial recordDec 5, 2024Sold~$9.4Kdisclosed Dec 9
DetailsOfficial recordNov 12, 2024Sold~$67Kdisclosed Nov 14
DetailsOfficial recordNov 12, 2024Sold~$34Kdisclosed Nov 14
DetailsOfficial recordNov 12, 2024Sold~$32Kdisclosed Nov 14
DetailsOfficial recordNov 12, 2024Sold~$10Kdisclosed Nov 14
DetailsOfficial recordNov 12, 2024Sold~$10Kdisclosed Nov 14
DetailsOfficial recordNov 12, 2024Sold~$10Kdisclosed Nov 14
DetailsOfficial recordNov 12, 2024Sold~$10Kdisclosed Nov 14
DetailsOfficial recordNov 4, 2024Sold~$63Kdisclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$32Kdisclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$30Kdisclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$9.6Kdisclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$166disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$962disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$497disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$464disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$166disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$166disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$166disclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$9.6Kdisclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$9.6Kdisclosed Nov 6
DetailsOfficial recordNov 4, 2024Sold~$9.6Kdisclosed Nov 6
DetailsOfficial recordOct 14, 2024Sold~$64Kdisclosed Oct 16
DetailsOfficial recordOct 14, 2024Sold~$33Kdisclosed Oct 16
DetailsOfficial recordOct 14, 2024Sold~$31Kdisclosed Oct 16
DetailsOfficial recordOct 14, 2024Sold~$9.7Kdisclosed Oct 16
DetailsOfficial recordOct 14, 2024Sold~$9.6Kdisclosed Oct 16
DetailsOfficial recordOct 14, 2024Sold~$9.6Kdisclosed Oct 16
DetailsOfficial recordOct 14, 2024Sold~$9.6Kdisclosed Oct 16
DetailsOfficial recordOct 8, 2024Sold~$30Kdisclosed Oct 10
DetailsOfficial recordOct 8, 2024Sold~$15Kdisclosed Oct 10
DetailsOfficial recordOct 8, 2024Sold~$14Kdisclosed Oct 10
DetailsOfficial recordOct 8, 2024Sold~$4.5Kdisclosed Oct 10
DetailsOfficial recordOct 8, 2024Sold~$4.5Kdisclosed Oct 10
DetailsOfficial recordOct 8, 2024Sold~$4.5Kdisclosed Oct 10
DetailsOfficial recordOct 8, 2024Sold~$4.5Kdisclosed Oct 10
DetailsOfficial recordOct 4, 2024Sold~$28Kdisclosed Oct 8
DetailsOfficial recordOct 4, 2024Sold~$15Kdisclosed Oct 8
DetailsOfficial recordOct 4, 2024Sold~$14Kdisclosed Oct 8
DetailsOfficial recordOct 4, 2024Sold~$4.3Kdisclosed Oct 8
DetailsOfficial recordOct 4, 2024Sold~$4.3Kdisclosed Oct 8
DetailsOfficial recordOct 4, 2024Sold~$4.3Kdisclosed Oct 8
DetailsOfficial recordOct 4, 2024Sold~$4.3Kdisclosed Oct 8
DetailsOfficial recordAs of the latest filing on , Derek J Maetzold reported holding 21,405 shares of Castle Biosciences (CSTL), worth about $723K at the last close of $34 (Nov 13, 2026): 3,904 held directly and 17,501 through a derek maetzold 2020 irrevocable trust, a maetzold descendants 2020 trust, a maetzold 2018 remainder trust fbo peter douglas maetzold, a maetzold 2018 remainder trust fbo john derek maetzold, a maetzold 2018 remainder trust fbo hannah elizabeth maetzold, a maetzold 2018 remainder trust fbo emily carol kirk. In the last 12 months, Derek J Maetzold sold $2.01M in 15 sales.
| Company | Shares reported | How held | Last close | Value at last close | Reported |
|---|---|---|---|---|---|
| Castle Biosciences CSTL | 21,405 | 3,904 direct · 1,396 derek maetzold 2020 irrevocable trust · 1,642 maetzold descendants 2020 trust · 3,615 maetzold 2018 remainder trust fbo peter douglas maetzold · 3,615 maetzold 2018 remainder trust fbo john derek maetzold · 3,615 maetzold 2018 remainder trust fbo hannah elizabeth maetzold · 3,618 maetzold 2018 remainder trust fbo emily carol kirk | $34 | $723K | Nov 2, 2026 |
Is this Derek J Maetzold’s net worth? No. A Form 4 reports the shares an insider owns in one company after each transaction, directly or through trusts and entities. It says nothing about cash, other investments, property or debt, options not yet exercised are not counted here, and a holding reported some time ago may have changed without a new filing. The value is shares times the last stored close, not a price anyone received. Sources: the filings listed below, each linked to EDGAR. Compare with the biggest insider stakes.
Derek J Maetzold has no open-market purchase on record since 2020. Sales in each of the last 7 years.
Derek J Maetzold reported 0 open-market purchases and 1,069 sales since 2020; no open-market purchase.
| Year | Bought | Sold |
|---|---|---|
| 2026 | — | $2.01M15×15 trades |
| 2025 | — | $2.74M110×110 trades |
| 2024 | — | $3.02M142×142 trades |
| 2023 | — | $3.98M153×153 trades |
| 2022 | — | $2.84M168×168 trades |
| 2021 | — | $47.9M347×347 trades |
| 2020 | — | $19.3M134×134 trades |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. Dollar totals use the price the filer reported; lines with no price count as trades without a value.
On the latest SEC Form 4, dated Nov 2, 2026, Derek J Maetzold reported holding 21,405 shares of Castle Biosciences (CSTL), of which 17,501 are held indirectly. At the last close of $34 on Nov 13, 2026, that is about $723K. This is the stake disclosed in filings, not a net worth.
In SEC filings of the last 12 months, Derek J Maetzold reported 15 open-market sales worth $2.01M, and no open-market purchase. Shares withheld for taxes, gifts and option exercises are not counted in these totals.
Derek J Maetzold has no open-market purchase on record since 2020. Sales in each of the last 7 years.
In SEC filings since 2020: no open-market purchase is on record; the latest open-market sale is from 2026.
Castle Biosciences (CSTL), from 2020 to 2026: 0 purchases and 1,069 sales.
Derek J Maetzold reported 0 open-market purchases and 1,069 sales here, 2020 to 2026.
Closing prices and the companies' last annual figures; a − or + is a fact of the close, not a forecast.
