CASTLE BIOSCIENCES INC
For the period ended Sep 30, 2025. Filed Nov 3, 2025.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Sep 30, 2025 · Filed Nov 3, 2025
CSTL$32.52-4.9%Stored close · as of Nov 6, 2026
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Item 6. Exhibits
| Exhibit Number | Description |
| 3.1 | Amended and Restated Certificate of Incorporation of the Registrant, incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K filed with the SEC on May 23, 2025. |
| 3.2 | Amended and Restated Bylaws of the Registrant, incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K filed with the SEC on August 8, 2025. |
| 4.1 | Form of Common Stock Certificate of the Registrant, incorporated by reference to Exhibit 4.1 of the Registrant’s Registration Statement on Form S-1 (File No. 333-232369), as amended, originally filed with the SEC on June 26, 2019. |
| 4.2 | Sixth Amended and Restated Investors’ Rights Agreement, dated July 12, 2019, by and among the Registrant and certain of its stockholders, incorporated by reference to Exhibit 4.2 of the Registrant’s Registration Statement on Form S-1 (File No. 333-232369), as amended, originally filed with the SEC on June 26, 2019. |
| 10.1*^ | Non-Employee Director Compensation Policy, as amended effective August 5, 2025. |
| 10.2*^ | Castle Biosciences, Inc. 2022 Inducement Plan, as amended and restated. |
| 31.1* | Certification of Principal Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) of the Exchange Act. |
| 31.2* | Certification of Principal Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) of the Exchange Act. |
| 32.1** | Certification of Principal Executive Officer and Principal Financial Officer pursuant to Rules 13a-14(b) or 15d-14(b) of the Exchange Act, and 18 U.S.C. Section 1350. |
| 101.INS* | Inline XBRL Instance Document—the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH* | Inline XBRL Taxonomy Extension Schema. |
| 101.CAL* | Inline XBRL Taxonomy Extension Calculation Linkbase. |
| 101.DEF* | Inline XBRL Taxonomy Extension Definition Linkbase. |
| 101.LAB* | Inline XBRL Taxonomy Extension Label Linkbase. |
| 101.PRE* | Inline XBRL Taxonomy Extension Presentation Linkbase. |
| 104* | Cover Page Interactive Data File (embedded within the Inline XBRL and contained in Exhibit 101). |
- Filed herewith
** Furnished herewith
^ Indicates management contract or compensatory plan.
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