CASTLE BIOSCIENCES INC — Director's Dealing 2021

Jan 15, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CASTLE BIOSCIENCES INC (CSTL)
CIK: 0001447362
Period of Report: 2021-01-13

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-13	Common Stock	S	400	$71.36	Disposed	910618	Direct
2021-01-13	Common Stock	S	3156	$72.94	Disposed	907462	Direct
2021-01-13	Common Stock	S	5118	$73.96	Disposed	902344	Direct
2021-01-13	Common Stock	S	603	$74.52	Disposed	901741	Direct
2021-01-13	Common Stock	S	100	$76.78	Disposed	901641	Direct
2021-01-13	Common Stock	S	270	$71.66	Disposed	901371	Direct
2021-01-13	Common Stock	S	1530	$72.86	Disposed	899841	Direct
2021-01-13	Common Stock	S	2589	$73.84	Disposed	897252	Direct
2021-01-13	Common Stock	S	611	$74.56	Disposed	896641	Direct
2021-01-14	Common Stock	S	4759	$75.74	Disposed	891882	Direct
2021-01-14	Common Stock	S	4618	$76.52	Disposed	887264	Direct
2021-01-14	Common Stock	S	3142	$75.80	Disposed	884122	Direct
2021-01-14	Common Stock	S	1858	$76.55	Disposed	882264	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	156460	Indirect
Common Stock	179300	Indirect
Common Stock	166700	Indirect

Footnotes

F1: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on September 10, 2020.

F2: This transaction was executed in multiple trades at prices ranging from $71.17 to $71.52, 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: This transaction was executed in multiple trades at prices ranging from $72.40 to $73.36, 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: This transaction was executed in multiple trades at prices ranging from $73.40 to $74.37, 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: This transaction was executed in multiple trades at prices ranging from $74.41 to $74.61, 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: These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 11, 2020.

F7: This transaction was executed in multiple trades at prices ranging from $71.35 to $72.32, 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: This transaction was executed in multiple trades at prices ranging from $72.36 to $73.06, 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.

F9: This transaction was executed in multiple trades at prices ranging from $73.40 to $74.38, 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.

F10: This transaction was executed in multiple trades at prices ranging from $74.44 to $74.81, 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.

F11: This transaction was executed in multiple trades at prices ranging from $75.25 to $76.24, 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.

F12: This transaction was executed in multiple trades at prices ranging from $76.25 to $77.09, 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.

F13: This transaction was executed in multiple trades at prices ranging from $75.30 to $76.28, 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.

F14: This transaction was executed in multiple trades at prices ranging from $76.33 to $76.93, 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.

F15: Held by DJM Grantor Retained Annuity Trust No. 1 which the Reporting Person is the trustee and beneficiary. Reflects the transfer on January 4, 2021 of 2,869 shares of common stock from the DJM Grantor Retained Annuity Trust No. 1 to the Reporting Person's direct holdings.

F16: Held by The Maetzold Descendants 2020 Trust which the Reporting Person's spouse is the trustee and the Reporting Person's spouse and their children are beneficiaries.

F17: Held by Derek Maetzold 2020 Irrevocable Trust which the Reporting Person is the trustee and his children are beneficiaries.