Erasca (NASDAQ: ERAS) director receives 29,888 stock options vesting in 2027

Rhea-AI Filing Summary

Erasca, Inc. director James Arthur Bristol received a grant of stock options as part of his compensation. The award covers 29,888 options to buy common stock at an exercise price of $16.01 per share. These options were granted at no cost on the grant date.

The options vest 100% on June 26, 2027, provided he continues serving the company through that date, and they expire on June 26, 2036. After this grant, he holds 29,888 stock options directly, with no open-market share purchases or sales reported in this filing.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Bristol James Arthur

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]

Key Figures

Options granted: 29,888 options Exercise price: $16.01 per share Options held after grant: 29,888 options +3 more

6 metrics

Options granted 29,888 options Stock option award to director James Arthur Bristol

Exercise price $16.01 per share Strike price for the 29,888 stock options

Options held after grant 29,888 options Total derivative holdings following this transaction

Vesting date June 26, 2027 100% of options vest on this date, service-based

Expiration date June 26, 2036 Unexercised options lapse after this date

Transaction code A (Grant, award, or other acquisition) Indicates compensation-related option grant

Key Terms

Stock option, exercise price, Grant, award, or other acquisition, vest, +1 more

5 terms

Stock option financial

"Stock option (right to buy)"

A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.

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""

vest financial

"100% of the options to purchase shares vest on June 26, 2027"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

expiration date financial

"expiration_date: "2036-06-26T00:00:00.000Z""

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/29/2026 - 07:03 PM Accepted by SEC EDGAR 06/29/2026 - 07:03 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

Bristol James Arthur

(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)

X	Director		10% 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)

X	Form 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)
			Code	V	Amount	(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock option (right to buy)	$16.01	06/26/2026		A		29,888		06/26/2027(1)	06/26/2036	Common Stock	29,888	$0	29,888	D

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-Fact	06/29/2026
	** Signature of Reporting Person	Date
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)

FAQ

What did Erasca (ERAS) director James Arthur Bristol report on this Form 4?

He reported receiving a grant of stock options for 29,888 shares of Erasca common stock. The options were awarded at no cost on the grant date and represent compensation rather than an open-market purchase or sale of existing shares.

What is the exercise price of the Erasca (ERAS) options granted to James Arthur Bristol?

The options have an exercise price of $16.01 per share for Erasca common stock. This is the price he must pay per share to exercise the 29,888 options if they vest and are exercised before the expiration date.

When do James Arthur Bristol’s Erasca (ERAS) stock options vest and expire?

All 29,888 options vest 100% on June 26, 2027, assuming his continuous service with Erasca through that date. The options then remain exercisable until their expiration on June 26, 2036, after which any unexercised options will lapse.

How many Erasca (ERAS) stock options does James Arthur Bristol hold after this transaction?

Following this grant, he holds 29,888 stock options directly. These options each relate to one share of Erasca common stock, giving him the right, but not the obligation, to purchase those shares at the fixed exercise price if vested.

Is this Erasca (ERAS) Form 4 filing a stock purchase or sale by James Arthur Bristol?

No, this filing reflects a compensation-related grant of stock options, not an open-market trade. The options were awarded with a $16.01 exercise price and vest in the future, so no shares were bought or sold in the market here.