Tobin W. Juvenal - Jun 17, 2021 Form 4 Insider Report for CASTLE BIOSCIENCES INC (CSTL)

Signature
/s/ Greg Acosta, Attorney-in-fact
Stock symbol
CSTL
Transactions as of
Jun 17, 2021
Transactions value $
-$730,258
Form type
4
Date filed
6/21/2021, 04:11 PM
Next filing
Dec 14, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CSTL Common Stock Options Exercise $12.4K +5.26K +186.17% $2.36* 8.09K Jun 17, 2021 Direct F1
transaction CSTL Common Stock Options Exercise $11.3K +4.74K +58.55% $2.39* 12.8K Jun 17, 2021 Direct F1
transaction CSTL Common Stock Sale -$754K -10K -77.96% $75.40 2.83K Jun 17, 2021 Direct F1, F2

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 Stock option (right to buy) Options Exercise $0 -5.26K -91.66% $0.00 479 Jun 17, 2021 Common Stock 5.26K $2.36 Direct F1, F3
transaction CSTL Stock option (right to buy) Options Exercise $0 -4.74K -27.17% $0.00 12.7K Jun 17, 2021 Common Stock 4.74K $2.39 Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on May 15, 2021.
F2 This transaction was executed in multiple trades at prices ranging from $75.00 to $75.90, 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 25% of the 11,484 shares originally subject to the option vested on July 21, 2018, and the remaining shares vest in 36 equal monthly installments thereafter.
F4 25% of the 24,610 shares originally subject to the option vested on May 10, 2019, and the remaining shares vest in 36 equal monthly installments thereafter.