Form 4 Tracker
Boundless Bio, Inc.
BOLD

10 insider filings · Latest: Jun 25, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 29, 2026Jun 29 11:56 PMKevin Tang10% Owner
Purchase
64,762$2.47$160.0K2,533,845(I)

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Jun 26, 2026Jun 29 11:56 PMKevin Tang10% Owner
Purchase
75,181$2.55$191.7K2,469,083(I)

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Jun 25, 2026Jun 29 11:56 PMKevin Tang10% Owner
Purchase
146,390$2.48$363.1K2,393,902(I)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 15, 2026Jun 15 11:40 PMNancy WhitingDirector
Grant/Award
32,000$1.4032,000(D)

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Jun 15, 2026Jun 15 11:36 PMJonathan E LimDirector
Grant/Award
48,000$1.4048,000(D)

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Jun 15, 2026Jun 15 11:31 PMJames ChristensenDirector
Grant/Award
32,000$1.4032,000(D)

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Jun 15, 2026Jun 15 11:28 PMJennifer LewDirector
Grant/Award
32,000$1.4032,000(D)

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Jan 23, 2026Jan 26 12:00 PMJessica OienChief Legal Officer and Corporate Secretary
Grant/Award
220,000$1.26220,000(D)

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Jan 23, 2026Jan 26 12:00 PMChristian HassigChief Scientific Officer
Grant/Award
230,000$1.26230,000(D)

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Jan 23, 2026Jan 26 12:00 PMRobert DoebeleChief Medical Officer
Grant/Award
230,000$1.26230,000(D)

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Jan 23, 2026Jan 26 12:00 PMZachary HornbyDirector, President & CEO
Grant/Award
600,000$1.26600,000(D)

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Jan 23, 2026Jan 26 12:00 PMDavid A HinkleSenior VP, Finance, Controller and Treasurer
Grant/Award
140,000$1.26140,000(D)

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