Lim Jonathan E 4

What Happened
Jonathan E. Lim, reported as a 10% owner of Erasca, Inc. (ERAS), received a grant/award of 2,000,000 derivative shares on January 29, 2026. The award is reported at $0.00 per share (no cash paid). This is an award/acquisition (Form 4 code A) rather than an open-market purchase or sale.

Key Details

• Transaction date: 2026-01-29; filing date: 2026-01-30 (timely).
• Amount: 2,000,000 derivative shares granted at $0.00 per share.
• Shares owned after transaction: Not specified in the Form 4 filing.
• Footnote: Vesting is 1/48th of the shares monthly, vesting on the 29th of each month (or the last day of February), starting in February 2026, subject to Lim’s continuous service.
• Transaction code: A (grant/award/acquisition); derivative securities granted.

Context
This grant will vest monthly over 48 months (four years) if the reporting person remains in continuous service, so the recipient does not receive the full economic benefit immediately. Because Lim is a 10% owner, this filing reflects a material insider allocation but is not a market purchase or sale. The form shows no cash paid for the award and was filed promptly the day after the transaction.