LIU JEAN I 4

What Happened
Jean I. Liu, a director of Erasca, Inc. (ERAS), was granted 29,888 derivative securities on June 26, 2026. The filing reports an acquisition price of $0.00 for these securities (total reported dollar amount $0). The award is a derivative grant (options to purchase shares per the filing footnote) and does not represent an immediate open‑market purchase or sale.

Key Details

• Transaction date: 2026-06-26; Form 4 filed 2026-06-29 (filing appears timely).
• Transaction type: Award/Grant of derivative securities (code A).
• Shares/units granted: 29,888; reported price: $0.00 (reported dollar value $0).
• Shares owned after transaction: Not specified in the filing.
• Footnote: 100% of the options to purchase the shares vest on June 26, 2027, subject to the reporting person’s continuous service to the issuer on that date.

Context
This was a compensation-related grant of derivative securities to a director, not an immediate purchase or sale of stock. Because vesting occurs one year from the grant date and is conditioned on continued service, the award does not increase Liu’s current free tradable shares. Such director grants are common and should be interpreted as a compensation/retention action rather than a direct signal to buy or sell stock.