Celebi Breanna Maurine 4

What Happened
Celebi Breanna Maurine, a director of Climb Bio, was granted a derivative award of 70,284 shares (stock option) on June 29, 2026, shown at an exercise/price of $0. The award vests in equal monthly installments beginning June 29, 2026 and continuing until the third anniversary of that date, subject to continued service.

Key Details

• Transaction date and type: 2026-06-29 — Award/Grant (code A) of 70,284 shares at $0.00 (derivative).
• Vesting: Equal monthly installments from June 29, 2026 through the third anniversary (36 months), subject to continued service.
• Ownership after transaction: Not reported; the reporting person disclaims beneficial ownership per the filing.
• Footnote on arrangement: The option is held for the benefit of RA Capital funds and a separately managed account; the reporting person must turn over any net cash or stock received on exercise to the Adviser to offset advisory fees (per filing).
• Filing date/timeliness: Form 4 filed 2026-07-01 for a 2026-06-29 grant — filing appears timely.

Context
This was a compensation-style option grant to a director (not an open-market purchase or sale). Because the reporting person disclaims beneficial ownership and the option is held for institutional RA Capital funds, the grant reflects a managed/institutional arrangement rather than a direct personal investment signal by the director. Grants and option awards to directors are common and do not by themselves indicate immediate buying or selling in the market.