Pratik S. Multani - 01 Jan 2026 Form 4 Insider Report for Erasca, Inc. (ERAS)

Role: Director
Signature: /s/ Ebun S. Garner, as Attorney-in-Fact
Issuer symbol: ERAS
Transactions as of: 01 Jan 2026
Net transactions value: $0
Form type: 4
Filing time: 05 Jan 2026, 09:00:06 UTC
Previous filing: 17 Dec 2025
Next filing: 06 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Multani Pratik S	Director	C/O ERASCA, INC., 3115 MERRYFIELD ROW, SUITE 300, SAN DIEGO	/s/ Ebun S. Garner, as Attorney-in-Fact	05 Jan 2026	0001586894

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ERAS	Stock Option (right to buy)	Award	$0	+19,532		$0.000000	19,532	01 Jan 2026	Common Stock	19,532	$3.72	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2026 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2026.
F2	The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.