Castle Biosciences insider sells; last price $31.851, plan-led
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Castle Biosciences (CSTL) reported insider transactions by President & CEO and Director Derek Maetzold. Under a Rule 10b5-1 plan adopted on May 8, 2025, he sold 6,458 shares on 11/04/2025 at a weighted-average price of $30.413, 237 shares on 11/04/2025 at $31.117, and 2,678 shares on 11/05/2025 at $31.851.
Following these sales, he held 53,615 shares directly. He also reports indirect holdings through family trusts, including 85,959 shares in DJM Grantor Retained Annuity Trust No. 5.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Seller: 9,373 shares ($289,079)
Net Sell
12 txns
Insider
MAETZOLD DEREK J
Role
Pres. & Chief Exec. Officer
Sold
9,373 shs ($289K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 2,678 | $31.851 | $85K |
| Sale | Common Stock | 6,458 | $30.413 | $196K |
| Sale | Common Stock | 237 | $31.117 | $7K |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Common Stock — 53,615 shares (Direct);
Common Stock — 52,923 shares (Indirect, By The Maetzold Descendants 2020 Trust)
Footnotes (1)
- These transactions were made pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on May 8, 2025. This transaction was executed in multiple trades at prices ranging from $30.000 to $30.990, 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. This transaction was executed in multiple trades at prices ranging from $31.115 to $31.120, 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. This transaction was executed in multiple trades at prices ranging from $31.520 to $32.090, 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. 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. Held by Derek Maetzold 2020 Irrevocable Trust of which the Reporting Person is the trustee and his children are beneficiaries. 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. 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. 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. 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. Held by DJM Grantor Retained Annuity Trust No. 5 of which the Reporting Person is the trustee and beneficiary. 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. Held by DJM Grantor Retained Annuity Trust No. 7 of which the Reporting Person is the trustee and beneficiary.
FAQ
What insider transactions did CSTL report on Form 4?
Derek Maetzold sold 6,458 shares at $30.413, 237 shares at $31.117 on 11/04/2025, and 2,678 shares at $31.851 on 11/05/2025.
Was the CSTL insider sale under a Rule 10b5-1 plan?
Yes. The sales were made pursuant to a Rule 10b5-1 plan adopted on May 8, 2025.
What prices were reported for the CSTL insider sales?
Weighted-average prices were $30.413, $31.117, and $31.851, with trades executed in stated price ranges.
Who signed the Form 4 for CSTL?
It was signed by /s/ Frank Stokes, Attorney-in-fact on 11/06/2025.