TapewireFind a company

person · Reporting owner

MAETZOLD DEREK J

Disclosed activity across 1 company

Tapewire entity
17918
SEC CIK
0001239501

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CASTLE BIOSCIENCES INCCSTL · Entity 359Director · Pres. & Chief Exec. OfficerOctober 05, 2026October 07, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CASTLE BIOSCIENCES INC

Report date October 05, 2026 · Filed October 07, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect21,064 Ending reported balance After 2026-10-05 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-10-05 · Exercise / conversion · Acquired 8,165 · Balance 29,644

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.

Row 2 · 2026-10-05 · Sale · Disposed 8,580 · Balance 21,064

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.

F2: This transaction was executed in multiple trades at prices ranging from $35.310 to $35.965, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Common StockSEC Table I · non-derivativeIndirectBy The Maetzold Descendants 2020 Trust8,038 Reported balance After 2026-10-05 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2026-10-05 · Sale · Disposed 3,198 · Balance 8,038

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.

F2: This transaction was executed in multiple trades at prices ranging from $35.310 to $35.965, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Common StockSEC Table I · non-derivativeIndirectBy Derek Maetzold 2020 Irrevocable Trust6,832 Reported balance After 2026-10-05 transaction · row 4 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 4 · 2026-10-05 · Sale · Disposed 2,718 · Balance 6,832

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.

F2: This transaction was executed in multiple trades at prices ranging from $35.310 to $35.965, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F4: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Stock option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $2.39 · Expires 2028-05-09Direct0 Reported balance After 2026-10-05 transaction · row 13 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 13 · 2026-10-05 · Exercise / conversion · Disposed 8,165 · Balance 0

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.

F13: The shares subject to the option are fully vested.

Common StockSEC Table I · non-derivativeIndirectBy The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk11,256 Reported balance Holding disclosure · report date 2026-10-05 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 11,256

F5: Held by The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk of which the Reporting Person is the trustee and his child is the beneficiary.

Common StockSEC Table I · non-derivativeIndirectBy The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold11,256 Reported balance Holding disclosure · report date 2026-10-05 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 11,256

F6: Held by The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold of which the Reporting Person is the trustee and his child is the beneficiary.

Common StockSEC Table I · non-derivativeIndirectBy The Maetzold 2018 Remainder Trust FBO John Derek Maetzold11,256 Reported balance Holding disclosure · report date 2026-10-05 · row 7 Holding and transaction disclosures are not merged.
1 source row

Row 7 · Balance 11,256

F7: Held by The Maetzold 2018 Remainder Trust FBO John Derek Maetzold of which the Reporting Person is the trustee and his child is the beneficiary.

Common StockSEC Table I · non-derivativeIndirectBy The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold11,256 Reported balance Holding disclosure · report date 2026-10-05 · row 8 Holding and transaction disclosures are not merged.
1 source row

Row 8 · Balance 11,256

F8: Held by The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold of which the Reporting Person is the trustee and his child is the beneficiary.

Common StockSEC Table I · non-derivativeIndirectBy DJM Grantor Retained Annuity Trust No. 611,963 Reported balance Holding disclosure · report date 2026-10-05 · row 9 Holding and transaction disclosures are not merged.
1 source row

Row 9 · Balance 11,963

F9: Held by DJM Grantor Retained Annuity Trust No. 6 of which the Reporting Person is the trustee and the beneficiaries are The Maetzold 2018 Remainder Trust FBO John Derek Maetzold, The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk, The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold and The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold.

Common StockSEC Table I · non-derivativeIndirectBy DJM Grantor Retained Annuity Trust No. 727,862 Reported balance Holding disclosure · report date 2026-10-05 · row 10 Holding and transaction disclosures are not merged.
1 source row

Row 10 · Balance 27,862

F10: Held by DJM Grantor Retained Annuity Trust No. 7 of which the Reporting Person is the trustee and beneficiary.

Common StockSEC Table I · non-derivativeIndirectBy DJM Grantor Retained Annuity Trust No. 840,935 Reported balance Holding disclosure · report date 2026-10-05 · row 11 Holding and transaction disclosures are not merged.
1 source row

Row 11 · Balance 40,935

F11: Held by DJM Grantor Retained Annuity Trust No. 8 of which the Reporting Person is the trustee and beneficiary.

Common StockSEC Table I · non-derivativeIndirectDJM Grantor Retained Annuity Trust No. 923,216 Reported balance Holding disclosure · report date 2026-10-05 · row 12 Holding and transaction disclosures are not merged.
1 source row

Row 12 · Balance 23,216

F12: Held by DJM Grantor Retained Annuity Trust No. 9 of which the Reporting Person is the trustee and beneficiary.

Filing footnotes · ownership attribution and instrument terms

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on June 2, 2026.

F2: This transaction was executed in multiple trades at prices ranging from $35.310 to $35.965, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

F4: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

F5: Held by The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk of which the Reporting Person is the trustee and his child is the beneficiary.

F6: Held by The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold of which the Reporting Person is the trustee and his child is the beneficiary.

F7: Held by The Maetzold 2018 Remainder Trust FBO John Derek Maetzold of which the Reporting Person is the trustee and his child is the beneficiary.

F8: Held by The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold of which the Reporting Person is the trustee and his child is the beneficiary.

F9: Held by DJM Grantor Retained Annuity Trust No. 6 of which the Reporting Person is the trustee and the beneficiaries are The Maetzold 2018 Remainder Trust FBO John Derek Maetzold, The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk, The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold and The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold.

F10: Held by DJM Grantor Retained Annuity Trust No. 7 of which the Reporting Person is the trustee and beneficiary.

F11: Held by DJM Grantor Retained Annuity Trust No. 8 of which the Reporting Person is the trustee and beneficiary.

F12: Held by DJM Grantor Retained Annuity Trust No. 9 of which the Reporting Person is the trustee and beneficiary.

F13: The shares subject to the option are fully vested.

Transaction history

JSON API
Reset

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 66 $57.54 $3,797.77
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 11

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 138,565

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $57.255 to $57.860, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 134 $56.67 $7,593.11
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 10

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 138,631

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $56.080 to $56.970, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 434 $55.40 $24,045.34
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 9

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 138,765

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $55.020 to $55.880, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 200 $59.09 $11,818.80
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 8

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 150,967

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F6 · price: This transaction was executed in multiple trades at prices ranging from $58.540 to $59.375, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 67 $57.54 $3,855.31
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 7

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 151,167

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $57.255 to $57.860, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 133 $56.67 $7,536.45
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 6

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 151,234

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $56.080 to $56.970, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 433 $55.40 $23,989.93
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 5

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 151,367

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $55.020 to $55.880, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 200 $59.09 $11,818.80
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 4

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 128,128

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F6 · price: This transaction was executed in multiple trades at prices ranging from $58.540 to $59.375, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 67 $57.54 $3,855.31
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 3

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 128,328

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $57.255 to $57.860, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 133 $56.67 $7,536.45
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 2

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 128,395

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $56.080 to $56.970, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
November 09, 2021 Filed Nov 12, 2021 21:38 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 433 $55.40 $23,989.93
Disclosure

SEC source: 0001447362-21-000257 · wf-form4_163675307684218.xml · nonDerivative · entry 1

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 128,528

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $55.020 to $55.880, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 166 $64.40 $10,690.40
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 9

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 139,199

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $64.250 to $64.580, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 67 $63.42 $4,249.27
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 8

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 139,365

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $63.020 to $63.810, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 600 $62.50 $37,500.60
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 7

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 139,432

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $61.980 to $62.975, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 167 $64.40 $10,754.80
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 6

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 151,800

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $64.250 to $64.580, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 67 $63.42 $4,249.27
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 5

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 151,967

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $63.020 to $63.810, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 600 $62.50 $37,500.60
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 4

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 152,034

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $61.980 to $62.975, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 167 $64.40 $10,754.80
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 3

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 128,961

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $64.250 to $64.580, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 66 $63.42 $4,185.85
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 2

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 129,128

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $63.020 to $63.810, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 21, 2021 Filed Oct 25, 2021 20:36 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 600 $62.50 $37,500.60
Disclosure

SEC source: 0001447362-21-000245 · wf-form4_163519418023104.xml · nonDerivative · entry 1

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 129,194

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $61.980 to $62.975, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 20, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 133 $66.05 $8,784.78
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 15

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 140,032

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F9 · price: This transaction was executed in multiple trades at prices ranging from $65.650 to $66.580, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 20, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 700 $65.04 $45,528.00
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 14

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 140,165

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F8 · price: This transaction was executed in multiple trades at prices ranging from $64.650 to $65.530, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 20, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 133 $66.05 $8,784.78
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 13

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 152,634

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F9 · price: This transaction was executed in multiple trades at prices ranging from $65.650 to $66.580, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 20, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 700 $65.04 $45,528.00
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 12

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 152,767

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F8 · price: This transaction was executed in multiple trades at prices ranging from $64.650 to $65.530, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 20, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 134 $66.05 $8,850.83
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 11

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 129,794

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F9 · price: This transaction was executed in multiple trades at prices ranging from $65.650 to $66.580, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 20, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 700 $65.04 $45,528.00
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 10

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 129,928

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F8 · price: This transaction was executed in multiple trades at prices ranging from $64.650 to $65.530, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 400 $67.80 $27,121.60
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 9

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 140,865

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $67.590 to $68.385, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 300 $67.07 $20,119.80
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 8

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 141,265

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $66.580 to $67.510, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 134 $66.13 $8,861.69
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 7

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 141,565

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $65.530 to $66.480, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 400 $67.80 $27,121.60
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 6

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 153,467

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $67.590 to $68.385, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 300 $67.07 $20,119.80
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 5

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 153,867

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $66.580 to $67.510, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 133 $66.13 $8,795.56
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 4

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 154,167

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $65.530 to $66.480, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 400 $67.80 $27,121.60
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 3

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 130,628

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $67.590 to $68.385, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 300 $67.07 $20,119.80
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 2

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 131,028

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $66.580 to $67.510, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 19, 2021 Filed Oct 21, 2021 21:28 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 133 $66.13 $8,795.56
Disclosure

SEC source: 0001447362-21-000241 · wf-form4_163485167827373.xml · nonDerivative · entry 1

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 131,328

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $65.530 to $66.480, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 06, 2021 Filed Oct 8, 2021 20:43 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 322 $64.14 $20,653.08
Disclosure

SEC source: 0001447362-21-000237 · wf-form4_163372580487508.xml · nonDerivative · entry 6

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 141,699

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $63.83 to $64.45, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 06, 2021 Filed Oct 8, 2021 20:43 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 511 $63.49 $32,443.39
Disclosure

SEC source: 0001447362-21-000237 · wf-form4_163372580487508.xml · nonDerivative · entry 5

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 142,021

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $62.79 to $63.77, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 06, 2021 Filed Oct 8, 2021 20:43 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 322 $64.14 $20,653.08
Disclosure

SEC source: 0001447362-21-000237 · wf-form4_163372580487508.xml · nonDerivative · entry 4

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 154,300

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $63.83 to $64.45, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F5 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 06, 2021 Filed Oct 8, 2021 20:43 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 512 $63.49 $32,506.88
Disclosure

SEC source: 0001447362-21-000237 · wf-form4_163372580487508.xml · nonDerivative · entry 3

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 154,622

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $62.79 to $63.77, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F5 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 06, 2021 Filed Oct 8, 2021 20:43 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 322 $64.14 $20,653.08
Disclosure

SEC source: 0001447362-21-000237 · wf-form4_163372580487508.xml · nonDerivative · entry 2

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 131,461

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $63.83 to $64.45, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 06, 2021 Filed Oct 8, 2021 20:43 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 511 $63.49 $32,443.39
Disclosure

SEC source: 0001447362-21-000237 · wf-form4_163372580487508.xml · nonDerivative · entry 1

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 131,783

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F2 · price: This transaction was executed in multiple trades at prices ranging from $62.79 to $63.77, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 05, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 533 $62.81 $33,477.20
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 18

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 142,532

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F10 · price: This transaction was executed in multiple trades at prices ranging from $62.500 to $63.145, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 05, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 300 $62.05 $18,613.50
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 17

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 143,065

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F9 · price: This transaction was executed in multiple trades at prices ranging from $61.440 to $62.430, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 05, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 533 $62.81 $33,477.20
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 16

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 155,134

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F10 · price: This transaction was executed in multiple trades at prices ranging from $62.500 to $63.145, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 05, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 300 $62.05 $18,613.50
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 15

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Maetzold Descendants 2020 Trust

Disclosed balance after: 155,667

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F9 · price: This transaction was executed in multiple trades at prices ranging from $61.440 to $62.430, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F7 · ownership.nature: Held by The Maetzold Descendants 2020 Trust of which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

Read SEC document
October 05, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 534 $62.81 $33,540.01
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 14

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 132,294

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F10 · price: This transaction was executed in multiple trades at prices ranging from $62.500 to $63.145, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 05, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 300 $62.05 $18,613.50
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 13

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By DJM Grantor Retained Annuity Trust No. 1

Disclosed balance after: 132,828

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F9 · price: This transaction was executed in multiple trades at prices ranging from $61.440 to $62.430, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · ownership.nature: Held by DJM Grantor Retained Annuity Trust No. 1 of which the Reporting Person is the trustee and beneficiary.

Read SEC document
October 04, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 67 $62.89 $4,213.63
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 12

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 143,365

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F6 · price: This transaction was executed in multiple trades at prices ranging from $62.870 to $62.910, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 04, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 102 $62.38 $6,362.35
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 11

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 143,432

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $61.720 to $62.700, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document
October 04, 2021 Filed Oct 6, 2021 20:52 UTC CASTLE BIOSCIENCES INC CSTL · Entity 359 SaleCommon Stock 168 $60.88 $10,227.00
Disclosure

SEC source: 0001447362-21-000233 · wf-form4_163355351292659.xml · nonDerivative · entry 10

MAETZOLD DEREK J · CIK 0001239501 · Director · Pres. & Chief Exec. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Derek Maetzold 2020 Irrevocable Trust

Disclosed balance after: 143,534

F1 · kind: These transactions were made pursuant to a Rule 10b5-1 plan adopted by DJM Grantor Retained Annuity Trust No. 1, The Maetzold Descendants 2020 Trust, and the Derek Maetzold 2020 Irrevocable Trust on June 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $60.710 to $61.680, inclusive. The price reported above reflects the weighted-average sale price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F8 · ownership.nature: Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.