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[Form 4] Erasca, Inc. Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Erasca, Inc. director Jean I. Liu received a stock option grant covering 29,888 shares of common stock on June 26, 2026. The option has an exercise price of $16.01 per share and expires on June 26, 2036. According to the filing, Liu now holds options for 29,888 shares following this award. The grant vests 100% on June 26, 2027, subject to her continuous service with the company until that date, and represents equity compensation rather than an open-market purchase or sale.

Positive

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Negative

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Insider LIU JEAN I
Role null
Type Security Shares Price Value
Grant/Award Stock option (right to buy) 29,888 $0.00 --
Holdings After Transaction: Stock option (right to buy) — 29,888 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Option grant size 29,888 shares Stock option (right to buy) granted June 26, 2026
Exercise price $16.01 per share Exercise price for the granted stock options
Post-grant option holdings 29,888 shares Total stock options held following the reported transaction
Vesting date June 26, 2027 100% of options vest on this date, subject to continuous service
Expiration date June 26, 2036 Final expiration of the stock option grant
Stock option (right to buy) financial
"security_title: "Stock option (right to buy)""
exercise price financial
"conversion_or_exercise_price: "16.0100""
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
Grant, award, or other acquisition financial
"transaction_code_description: "Grant, award, or other acquisition""
continuous service financial
"subject to the Reporting Person's continuous service to the Issuer"
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
LIU JEAN I
(Last)(First)(Middle)
C/O ERASCA, INC.
3115 MERRYFIELD ROW, SUITE 300
(Street)
SAN DIEGO CALIFORNIA 92121
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Erasca, Inc. [ ERAS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock option (right to buy)$16.0106/26/2026A29,88806/26/2027(1)06/26/2036Common Stock29,888$029,888D
Explanation of Responses:
1. 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.
/s/ Ebun S. Garner, as Attorney-in-Fact06/29/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR