Key facts
- This page summarizes David A. Hinkle's Form 4 filing for Boundless Bio, Inc. (BOLD).
- 1 reported transaction and 1 derivative row are listed below.
- Accepted by SEC: 26 Jan 2026, 07:00.
David A. Hinkle - 23 Jan 2026 Form 4 Insider Report for Boundless Bio, Inc. (BOLD)
- Reporting relationship
- Senior VP, Finance, Controller and Treasurer
- Issuer ticker
- BOLD
- Reported as of
- 23 Jan 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 26 Jan 2026, 07:00:03 UTC
- Prior SEC filing
- 23 Jan 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Jessica Oien, Attorney-in- Fact for David A. Hinkle
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
David A. Hinkle filed Form 4 for Boundless Bio, Inc. (BOLD) on 26 Jan 2026.
Change
- Previous filing in this sequence was filed on 23 Jan 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001186911
Primary reporting owner
HINKLE DAVID A
- Relationship
- Senior VP, Finance, Controller and Treasurer
- Address
- C/O BOUNDLESS BIO, INC., 10955 ALEXANDRIA WAY, SUITE 100, SAN DIEGO
- Signature
- /s/ Jessica Oien, Attorney-in- Fact for David A. Hinkle
- Signature date
- 23 Jan 2026
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
BOLD
transaction
Derivative
Stock Option (right to buy)
Award
- Transaction value
- $0
- Shares
- +140,000
- Change %
- Price
- $0.000000
- Shares after
- 140,000
- Date
- 23 Jan 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 140,000
- Exercise price
- $1.26
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote 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.
SEC remarks
Senior VP, Finance, Controller and Treasurer