Boundless Bio Inc.
Organization details
- Legal name
- Boundless Bio Inc.
- Ownership
- Public
- Status
- Active
- Sector (GICS)
- Health Care
- SIC code
- 2834 — Pharmaceutical Preparations
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- La Jolla
- Headquarters state / province
- California
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- BOLD
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001782303
- EIN
- 83-0751369
- Wikidata ID
- Q104481180
Board of directors
-
Christine Brennan · DirectorSince 2024
-
James Christensen · DirectorSince 2024
-
Jennifer Lew · DirectorSince 2024
-
Jonathan E. Lim · DirectorSince 2024
- Since 2024
-
Nancy Whiting · DirectorSince 2024
-
Zachary Hornby · Director · President & CEOSince 2024
Chief executives
Director election results
Annual meeting of June 15, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
94.6%
-
94.8%
Board connections
3 of this board's directors also sit on 8 other boards. 8 are in the same sector.
-
Beam Therapeutics Inc. Same sectorvia Kristina Burow
-
Caribou Biosciences Inc. Same sectorvia Nancy Whiting
-
Erasca Inc. Same sectorvia Jonathan E. Lim
-
Gossamer Bio Inc. Same sectorvia Kristina Burow
-
Kardigan Inc. Same sectorvia Kristina Burow
-
Maze Therapeutics Inc. Same sectorvia Jonathan E. Lim
-
Neumora Therapeutics Inc. Same sectorvia Kristina Burow
-
Scholar Rock Holding Corporation Same sectorvia Kristina Burow
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $1,973,470
- 35 purchases by 1 insider
- Sold, last 12 months
- $134,031
- 3 sales by 3 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Nov 10, 2026 | Kevin Tang 10% owner | Open-market purchase | +249 | $2.40 | $598 |
| Nov 6, 2026 | Kevin Tang 10% owner | Open-market purchase | +1,700 | $2.40 | $4,080 |
| Nov 5, 2026 | Kevin Tang 10% owner | Open-market purchase | +8,390 | $2.40 | $20,136 |
| Nov 4, 2026 | Kevin Tang 10% owner | Open-market purchase | +517 | $2.40 | $1,241 |
| Nov 3, 2026 | Kevin Tang 10% owner | Open-market purchase | +2,255 | $2.40 | $5,412 |
| Oct 27, 2026 | Kevin Tang 10% owner | Open-market purchase | +10,707 | $2.40 | $25,697 |
| Oct 26, 2026 | Kevin Tang 10% owner | Open-market purchase | +9,606 | $2.38 | $22,862 |
| Oct 23, 2026 | Kevin Tang 10% owner | Open-market purchase | +6,234 | $2.38 | $14,837 |
| Oct 22, 2026 | Kevin Tang 10% owner | Open-market purchase | +5,800 | $2.40 | $13,920 |
| Oct 20, 2026 | Kevin Tang 10% owner | Open-market purchase | +220 | $2.37 | $521 |
| Oct 19, 2026 | Kevin Tang 10% owner | Open-market purchase | +12,790 | $2.34 | $29,929 |
| Oct 19, 2026 | Kevin Tang 10% owner | Open-market purchase | +18,279 | $2.33 | $42,590 |
| Oct 16, 2026 | Kevin Tang 10% owner | Open-market purchase | +118,185 | $2.34 | $276,553 |
| Aug 26, 2026 | TANG CAPITAL MANAGEMENT LLC 10% owner | Open-market sale | −18,300 | $2.97 | $54,351 |
| Jul 21, 2026 | Kevin Tang 10% owner | Open-market purchase | +2,975 | $2.44 | $7,259 |
Peers
Compare boardsOrganizations in the same sector, closest in location and size first.
Questions about Boundless Bio Inc.
Who is the CEO of Boundless Bio Inc.?
Zachary Hornby has been Boundless Bio Inc.'s President & CEO since March 2024.
How many directors are on Boundless Bio Inc.'s board?
Boundless Bio Inc.'s board has 7 directors: Christine Brennan, James Christensen, Jennifer Lew, Jonathan E. Lim, Kristina Burow, Nancy Whiting and Zachary Hornby.
Are Boundless Bio Inc. insiders buying or selling shares?
Over the last 12 months, Boundless Bio Inc. insiders bought $2.0 million of shares in 35 purchases and sold $134,031 of shares in 3 sales on the open market, as reported to the SEC on Forms 4 and 5.
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