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Boundless Bio, Inc. — Director's Dealing 2026
Jan 26, 2026
34838_dirs_2026-01-26_ea6f96b2-7374-4a23-bd79-41aa7d612540.zip
Director's Dealing
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SEC Form 4 — Statement of Changes in Beneficial Ownership
Issuer: Boundless Bio, Inc. (BOLD)
CIK: 0001782303
Period of Report: 2026-01-23
Reporting Person: Oien Jessica (N/A)
Derivative Transactions
| Date | Security | Exercise Price | Code | Shares | A/D | Expiration | Underlying | Ownership |
|---|---|---|---|---|---|---|---|---|
| 2026-01-23 | Stock Option (right to buy) | $1.26 | A | 220000 | Acquired | 2036-01-22 | Common Stock (220000) | Direct |
Footnotes
F1: The vesting commencement date is January 1, 2026. The stock option vests in 48 substantially equal monthly installments. Accordingly, 1/48th of this stock option vests on February 1, 2026, and monthly thereafter.
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