CASTLE BIOSCIENCES INC — Director's Dealing 2022

Dec 21, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CASTLE BIOSCIENCES INC (CSTL)
CIK: 0001447362
Period of Report: 2022-12-19

Reporting Person: MAETZOLD DEREK J (Director, Pres. & Chief Exec. Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-12-19	Common Stock	S	1928	$22.734	Disposed	307267	Direct
2022-12-19	Common Stock	S	943	$22.734	Disposed	126135	Indirect
2022-12-19	Common Stock	S	880	$22.734	Disposed	114844	Indirect
2022-12-19	Common Stock	S	189	$22.734	Disposed	25659	Indirect
2022-12-19	Common Stock	S	189	$22.734	Disposed	25658	Indirect
2022-12-19	Common Stock	S	189	$22.734	Disposed	25658	Indirect
2022-12-19	Common Stock	S	189	$22.734	Disposed	25654	Indirect
2022-12-19	Common Stock	S	1905	$23.414	Disposed	305362	Direct
2022-12-19	Common Stock	S	932	$23.414	Disposed	125203	Indirect
2022-12-19	Common Stock	S	870	$23.414	Disposed	113974	Indirect
2022-12-19	Common Stock	S	186	$23.414	Disposed	25473	Indirect
2022-12-19	Common Stock	S	186	$23.414	Disposed	25472	Indirect
2022-12-19	Common Stock	S	186	$23.414	Disposed	25472	Indirect
2022-12-19	Common Stock	S	186	$23.414	Disposed	25468	Indirect

Footnotes

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person, The Maetzold Descendants 2020 Trust, Derek Maetzold 2020 Irrevocable Trust, The Maetzold 2018 Remainder Trust f/b/o Emily Carol Kirk, The Maetzold 2018 Remainder Trust f/b/o Hannah Elizabeth Maetzold, The Maetzold 2018 Remainder Trust f/b/o John Derek Maetzold, and The Maetzold 2018 Remainder Trust f/b/o Peter Douglas Maetzold on June 7, 2022.

F2: This transaction was executed in multiple trades at prices ranging from $22.090 to $23.070, 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: This transaction was executed in multiple trades at prices ranging from $23.090 to $23.865, 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.