Erasca Foundation proposes $122K share sale

The notice traces the foundation's common shares to a 10,193,557-share donation from Erasca, Inc. on July 20, 2021.

Rhea-AI Filing Summary

Erasca, Inc. (ERAS) identifies Erasca Foundation as the account for a proposed sale of 8,333 common shares, with an aggregate market value of $122,353.03 and an approximate sale date of October 15, 2026, through Merrill Lynch. The notice lists three prior foundation sales of 8,333 shares each, dated September 15, August 17 and July 21, 2026.

Key Figures

Shares proposed for sale: 8,333 shares Aggregate market value: $122,353.03 Prior sale aggregate market value: $133,093.91 +3 more

6 metrics

Shares proposed for sale 8,333 shares Erasca Foundation; approximate sale date October 15, 2026

Aggregate market value $122,353.03 Proposed sale of 8,333 common shares

Prior sale aggregate market value $133,093.91 8,333 shares sold September 15, 2026

Prior sale aggregate market value $152,418.71 8,333 shares sold August 17, 2026

Prior sale aggregate market value $157,637.52 8,333 shares sold July 21, 2026

Shares acquired by donation 10,193,557 shares From Erasca, Inc. on July 20, 2021

Key Terms

Rule 144, Person for Whose Account the Securities are To Be Sold, Securities Sold During The Past 3 Months

3 terms

Rule 144 regulatory

"paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Person for Whose Account the Securities are To Be Sold regulatory

"Name of Person for Whose Account the Securities are To Be Sold"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ERAS shares does Erasca Foundation plan to sell?

Erasca Foundation reported a proposed sale of 8,333 Erasca common shares, with an aggregate market value of $122,353.03 and an approximate sale date of October 15, 2026. Merrill Lynch is listed as the broker for the sale.

What recent ERAS sales did Erasca Foundation report?

Erasca Foundation reported sales of 8,333 shares on September 15, 2026, with an aggregate market value of $133,093.91; 8,333 shares on August 17, 2026, valued at $152,418.71; and 8,333 shares on July 21, 2026, valued at $157,637.52.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/15/2026 - 12:19 PM EDT Accepted by SEC EDGAR 10/15/2026 - 12:18 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001973524
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Erasca, Inc.
SEC File Number	001-40602
Address of Issuer	3115 MERRYFIELD ROW STE 300 San Diego CALIFORNIA 92121
Phone	8584656511
Name of Person for Whose Account the Securities are To Be Sold	Erasca Foundation
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Foundation

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill Lynch 6002 El Tordo PO Box 7297 Rancho Santa Fe CA 92067	8333	122353.03	349762035	10/15/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/20/2021	Donation	Erasca, Inc.			10193557	07/20/2021	Donation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Erasca Foundation 3115 MERRYFIELD ROW STE 300 San Diego CA 92121	Common	09/15/2026	8333	133093.91
Erasca Foundation 3115 MERRYFIELD ROW STE 300 San Diego CA 92121	Common	08/17/2026	8333	152418.71
Erasca Foundation 3115 MERRYFIELD ROW STE 300 San Diego CA 92121	Common	07/21/2026	8333	157637.52

144: Remarks and Signature

Remarks
Date of Notice	10/15/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/21/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Brian Baker
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)