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BOLD filings

Corporate insider profile

Robert Nelsen Filing Activity

Latest reported as Corporate insider of Boundless Bio, Inc. (BOLD).

Purchase filings
2
Reported companies
3
Net open-market value
$39,760,160
Latest transaction
Jul 1, 2026

Affiliated corporations

Reported company relationships

BOLDLatest reported

Boundless Bio, Inc.

Corporate insider

KARDPrior filing

Kardigan, Inc.

Corporate insider

SPTXPrior filing

Seaport Therapeutics, Inc.

10% Owner

Transaction history

Open-market Transactions

Open-market insider purchase and sale transactions
DateCompanyRoleTypeSharesPriceTotal value
Jul 1, 2026Boundless Bio, Inc. (BOLD)Corporate insiderSale16,000$2.49$39,840
Jun 22, 2026Kardigan, Inc. (KARD)Corporate insiderOpen Market Purchase1,250,000$16.00$20,000,000
May 4, 2026Seaport Therapeutics, Inc. (SPTX)10% OwnerOpen Market Purchase1,100,000$18.00$19,800,000