Ebun Garner - 15 Dec 2025 Form 4 Insider Report for Erasca, Inc. (ERAS)

Role
General Counsel & Corp. Sec.
Signature
/s/ Ebun Garner
Issuer symbol
ERAS
Transactions as of
15 Dec 2025
Net transactions value
-$462,152
Form type
4
Filing time
08 Jan 2026, 21:20:34 UTC
Previous filing
18 Feb 2025
Next filing
30 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Garner Ebun General Counsel & Corp. Sec. C/O ERASCA, INC., 3115 MERRYFIELD ROW, SUITE 300, SAN DIEGO /s/ Ebun Garner 08 Jan 2026 0001364554

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ERAS Common Stock Award $4,660 +3,902 +18% $1.19 25,076 15 Dec 2025 Direct F1
transaction ERAS Common Stock Options Exercise $204,000 +120,000 +479% $1.70 145,076 07 Jan 2026 Direct F2
transaction ERAS Common Stock Sale $670,812 -120,000 -83% $5.59 25,076 07 Jan 2026 Direct F2, F3

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) Options Exercise $0 -120,000 -25% $0.000000 360,000 07 Jan 2025 Common Stock 120,000 $1.70 Direct F2, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The purchase price was calculated in accordance with the Issuer's 2021 Employee Stock Purchase Plan.
F2 The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.
F3 This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.80. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4 The shares subject to this option award are fully vested and exercisable as of the date hereof.