Erasca Foundation plans $133K ERAS share sale

Erasca Foundation has filed to sell 8,333 shares of Erasca, Inc. common stock under Rule 144, with recent prior sales also reported.

Available on EDGAR 09/15/2026 - 04:47 PM EDT Accepted by SEC EDGAR 09/15/2026 - 04:46 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Erasca, Inc. (ERAS) has a notice that Erasca Foundation intends to sell common stock under Rule 144. The Foundation plans to sell 8,333 shares$133,093.91

The filing also lists prior sales by Erasca Foundation over the past three months and discloses that the Foundation originally acquired 10,193,557 shares

Key Figures

Shares to be sold under Rule 144: 8,333 shares Aggregate market value of planned sale: $133,093.91 Shares outstanding: 349,762,035 shares +4 more

7 metrics

Shares to be sold under Rule 144 8,333 shares Planned sale of Erasca, Inc. common stock by Erasca Foundation

Aggregate market value of planned sale $133,093.91 Value associated with 8,333 shares to be sold

Shares outstanding 349,762,035 shares Common stock of Erasca, Inc. in the same class as the shares to be sold

Shares acquired by donation 10,193,557 shares Erasca Foundation acquisition of common stock on July 20, 2021 via donation from Erasca, Inc.

Sale on August 17, 2026 8,333 shares for $152,418.71 Reported sale of Erasca common stock by Erasca Foundation

Sale on July 21, 2026 8,333 shares for $157,637.52 Reported sale of Erasca common stock by Erasca Foundation

Sale on June 15, 2026 8,333 shares for $117,476.95 Reported sale of Erasca common stock by Erasca Foundation

Key Terms

Rule 144, aggregate market value, donation

3 terms

Rule 144 regulatory

"See the definition of "person" in 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.

aggregate market value financial

"Common ... 8333 | 133093.91 | 349762035"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

donation financial

"07/20/2021 | Donation | Erasca, Inc."

FAQ

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

What does the Form 144 filing mean for Erasca, Inc. (ERAS)?

The Form 144 states that Erasca Foundation plans to sell 8,333 shares$133,093.91September 15, 2026.

How many ERAS shares is Erasca Foundation planning to sell in this notice?

Erasca Foundation indicates an intent to sell 8,333 sharesaggregate market value of $133,093.91, to be sold through Merrill Lynch and listed on NASDAQ.

How many Erasca, Inc. shares did Erasca Foundation originally acquire?

The notice reports that Erasca Foundation acquired 10,193,557 sharesJuly 20, 2021 via a donation from Erasca, Inc., with payment also dated July 20, 2021 and described as a donation.

What ERAS share sales has Erasca Foundation made in the past three months?

The Foundation reports three sales of 8,333 sharesJune 15, 2026, July 21, 2026, and August 17, 2026, with respective sale values of $117,476.95, $157,637.52, and $152,418.71.

What is the reported number of Erasca, Inc. shares outstanding in this filing?

The notice lists 349,762,035 shares

Who is executing the planned sale of ERAS shares for Erasca Foundation?

The planned Rule 144 sale of Erasca, Inc. common stock for Erasca Foundation is indicated to be through Merrill Lynch, with the securities listed on NASDAQ and an approximate sale date of September 15, 2026.

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

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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	133093.91	349762035	09/15/2026	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	08/17/2026	8333	152418.71
Erasca Foundation 3115 MERRYFIELD ROW STE 300 San Diego CA 92121	Common	07/21/2026	8333	157637.52
Erasca Foundation 3115 MERRYFIELD ROW STE 300 San Diego CA 92121	Common	06/15/2026	8333	117476.95

144: Remarks and Signature

Remarks
Date of Notice	09/15/2026
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)