Kristen M. Oelschlager - Mar 4, 2025 Form 4 Insider Report for CASTLE BIOSCIENCES INC (CSTL)

Role
Chief Operating Officer
Signature
/s/ Frank Stokes, Attorney-in-fact
Stock symbol
CSTL
Transactions as of
Mar 4, 2025
Transactions value $
-$80,917
Form type
4
Date filed
3/6/2025, 04:19 PM
Previous filing
Dec 11, 2024
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CSTL Common Stock Options Exercise +13.8K +8.98% 168K Mar 4, 2025 Direct F1, F2
transaction CSTL Common Stock Tax liability -$80.9K -3.64K -2.17% $22.23 164K Mar 4, 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CSTL Restricted Stock Units Award $0 +47.8K $0.00 47.8K Mar 4, 2025 Common Stock 47.8K Direct F1, F3
transaction CSTL Restricted Stock Units Options Exercise $0 -13.8K -25% $0.00 41.4K Mar 4, 2025 Common Stock 13.8K Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each Restricted Stock Unit ("RSU") represents the right to receive one share of the Issuer's Common Stock.
F2 Includes 1,271 shares acquired on February 28, 2025, under the Issuer's employee stock purchase plan.
F3 The RSU's vest in four equal annual installments beginning on March 04, 2026.
F4 On March 4, 2024, the Reporting Person was granted 55,243 RSUs which vest in four equal installments beginning on March 4, 2025.