Boundless Bio, Inc.
For the period ended Jun 30, 2026. Filed Aug 7, 2026.
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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.
Jun 30, 2026 · Filed Aug 7, 2026
BOLD$2.460.0%Stored close · as of Nov 9, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Item 6. Exhibits
| Exhibit · Incorporated by Reference · Filed | |||||
|---|---|---|---|---|---|
| Number | Description | Form | Date | Number | Herewith |
| 2.1+ | Agreement and Plan of Merger and Reorganization, dated June 22, 2026, by and among Boundless Bio, Inc., Boulder Merger Sub Corp. and Serapha Bio, Inc. | 8-K | 6/23/2026 | 2.1 | |
| 3.1 | Amended and Restated Certificate of Incorporation | 8-K | 4/2/2024 | 3.1 | |
| 3.2 | Amended and Restated Bylaws | 8-K | 4/2/2024 | 3.2 | |
| 10.1 | Form of Boundless Bio Support Agreement | 8-K | 6/23/2026 | 10.1 | |
| 10.2 | Form of Serapha Support Agreement | 8-K | 6/23/2026 | 10.2 | |
| 10.3 | Form of Securities Purchase Agreement | 8-K | 6/23/2026 | 10.3 | |
| 10.4 | Form of Registration Rights Agreement | 8-K | 6/23/2026 | 10.4 | |
| 10.5+# | Severance Agreement and Release of All Claims, dated July 1, 2026, between Boundless Bio, Inc. and Zachary Hornby | X | |||
| 10.6+# | Severance Agreement and Release of All Claims, dated July 1, 2026, between Boundless Bio, Inc. and Robert Doebele, M.D., Ph.D. | X | |||
| 10.7+# | Severance Agreement and Release of All Claims, dated July 2, 2026, between Boundless Bio, Inc. and Christian Hassig, Ph.D. | X | |||
| 10.8# | Amended and Restated Employment Offer Letter Agreement, dated June 23, 2026, between Boundless Bio, Inc. and Jessica Oien | X | |||
| 10.9# | Amended and Restated Employment Offer Letter Agreement, dated June 23, 2026, between Boundless Bio, Inc. and David Hinkle | X | |||
| 31.1 | Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | X | |||
| 31.2 | Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | X | |||
| 32.1* | Certifications of Principal Executive Officer and Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. | X | |||
| 101.INS | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document. | X | |||
| 101.SCH | Inline XBRL Taxonomy Extension Schema With Embedded Linkbase Documents | X | |||
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) | X | |||
- Registrant has omitted schedules and exhibits pursuant to Item 601(a)(5) of Regulation S-K. The Registrant agrees to furnish supplementally a copy of the omitted schedules and exhibits to the SEC upon request.
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