Derek J. Maetzold - Mar 4, 2025 Form 4 Insider Report for CASTLE BIOSCIENCES INC (CSTL)

Role
Pres. & Chief Exec. Officer, Director
Signature
/s/ Frank Stokes, Attorney-in-fact
Stock symbol
CSTL
Transactions as of
Mar 4, 2025
Transactions value $
-$287,034
Form type
4
Date filed
3/6/2025, 04:17 PM
Previous filing
Jan 15, 2025
Next filing
Mar 11, 2025
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 +31.1K +38.49% 112K Mar 4, 2025 Direct F1
transaction CSTL Common Stock Tax liability -$168K -7.58K -6.77% $22.23 104K Mar 4, 2025 Direct
transaction CSTL Common Stock Sale -$26K -1.25K -1.2% $20.86 103K Mar 4, 2025 Direct F2, F3
transaction CSTL Common Stock Sale -$42.2K -2.02K -2.84% $20.86 69.1K Mar 4, 2025 By The Maetzold Descendants 2020 Trust F2, F3, F4
transaction CSTL Common Stock Sale -$36.3K -1.74K -2.87% $20.86 58.8K Mar 4, 2025 By Derek Maetzold 2020 Irrevocable Trust F2, F3, F5
transaction CSTL Common Stock Sale -$3.59K -172 -3.37% $20.86 4.94K Mar 4, 2025 By The Maetzold 2018 Remainder Trust FBO Emily Carol Kirk F2, F3, F6
transaction CSTL Common Stock Sale -$3.53K -169 -3.31% $20.86 4.94K Mar 4, 2025 By The Maetzold 2018 Remainder Trust FBO Hannah Elizabeth Maetzold F2, F3, F7
transaction CSTL Common Stock Sale -$3.53K -169 -3.31% $20.86 4.94K Mar 4, 2025 By The Maetzold 2018 Remainder Trust FBO John Derek Maetzold F2, F3, F8
transaction CSTL Common Stock Sale -$3.53K -169 -3.31% $20.86 4.94K Mar 4, 2025 By The Maetzold 2018 Remainder Trust FBO Peter Douglas Maetzold F2, F3, F9
holding CSTL Common Stock 123K Mar 4, 2025 By DJM Grantor Retained Annuity Trust No. 5 F10
holding CSTL Common Stock 26.1K Mar 4, 2025 By DJM Grantor Retained Annuity Trust No. 6 F11

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 +112K $0.00 112K Mar 4, 2025 Common Stock 112K Direct F1, F12
transaction CSTL Restricted Stock Units Options Exercise $0 -31.1K -25% $0.00 93.3K Mar 4, 2025 Common Stock 31.1K Direct F1, F13
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

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 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 November 11, 2024.
F3 This transaction was executed in multiple trades at prices ranging from $20.565 to $21.130, 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 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.
F5 Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries.
F6 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.
F7 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.
F8 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.
F9 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.
F10 Held by DJM Grantor Retained Annuity Trust No. 5 of which the Reporting Person is the trustee and beneficiary.
F11 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.
F12 The RSU's vest in four equal annual installments beginning on March 04, 2026.
F13 On March 4, 2024, the Reporting Person was granted 124,437 RSUs which vest in four equal installments beginning on March 4, 2025.