Company: ERAS
Filing Date: 2025-04-29
Form Type: DEFA14A
Source: 0001193125-25-103883
Chunk: 0

Company: Erasca, Inc.
Filing Date: 2025-04-29
Form: DEFA14A
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box:

| ☐ | Preliminary Proxy Statement |

| ☐ | Confidential, for Use of the Commission Only (as permitted by Rule 
 14a-6(e)(2))                                                       |

| ☐ | Definitive Proxy Statement |

| ☒ | Definitive Additional Materials |

| ☐ | Soliciting Material under §240.14a-12 |

Erasca, Inc. (Name of Registrant as Specified In Its Charter) (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply):

| ☒ | No fee required |

| ☐ | Fee paid previously with preliminary materials |

| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 
 14a-6(i)(1) and 0-11                                                           |

| P.O. BOX 8016, CARY, NC 27512-9903 |

| Erasca, Inc.                                                                                                                                                                                                                                      
 Annual Meeting of Stockholders                                                                                                                                                                                                                    
 Tuesday, June 24, 2025 11:30 AM, Pacific Time                                                                                                                                                                                                     
 Annual Meeting to be held live via the internet - please visit www.proxydocs.com/ERAS for more details                                                                                                                                            
 You must register to attend the meeting online and/or participate at                                                                                                                                                                              
 www.proxydocs.com/ERAS                                                                                                                                                                                                                            
 For a convenient way to view proxy materials, VOTE, and obtain directions to attend the meeting go to www.proxydocs.com/ERAS                                                                                                                      
 To vote your proxy while visiting this site, you will need the 12 digit control number in the                                                                                                                                                     
 box below.   This communication presents only an overview of the more complete proxy                                                                                                                                                              
 materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting. 
 Under United States Securities and Exchange Commission rules, proxy materials do not have to be                                                                                                                                                   
 delivered in paper. Proxy materials can be distributed by making them available on the internet.