Oien Jessica 4

What Happened
Jessica Oien, Chief Legal Officer and Corporate Secretary of Boundless Bio (BOLD), was granted a stock option award covering 220,000 shares on January 23, 2026. The Form 4 reports an acquisition price of $0.00 (no cash paid at grant). The award is a derivative (stock option) subject to vesting rather than an open-market purchase or sale.

Key Details

• Transaction date: 2026-01-23; Form 4 filed 2026-01-26 (filed within the standard two-business-day reporting window).
• Award: stock option covering 220,000 shares; acquisition price reported as $0.00.
• Vesting: vesting commencement date Jan 1, 2026; vests in 48 substantially equal monthly installments — 1/48th vests on Feb 1, 2026 and monthly thereafter. (Footnote from filing.)
• Shares owned after transaction: not provided in the supplied filing details.
• Role noted in filing: Chief Legal Officer and Corporate Secretary.
• No indication in this filing of immediate exercise, sale, tax withholding, or a 10b5‑1 plan.

Context
This is a compensation grant (stock option) that vests over four years; it does not represent an open‑market buy or sale and does not create immediately tradable shares until vesting (and potential exercise) occurs. For investors tracking insider activity, grants signal compensation/retention practices but are not the same as executives buying stock with personal funds. Monitor future Form 4s for exercises or sales that convert these options into owned shares.