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BCS

Notice of Proposed Sale · 144

Erasca, Inc.

ERASNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Sep 15, 2026Accepted Sep 15, 2026, 4:46 PM EDTFiling CIK 1761918Accession 0001628280-26-062070
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Structured filing — 144

primary_doc.xml

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
Erasca, Inc.
Issuer CIK
0001761918
SEC file number
001-40602
Phone
8584656511
Person for whose account securities are to be sold
Erasca Foundation
Relationships to issuer
Foundation
Street
3115 MERRYFIELD ROW STE 300
City
San Diego
State / country code
CA
Postal code
92121

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common8,333133,093.91349,762,03509/15/2026NASDAQMerrill Lynch

Broker / market maker — proposed row 1, entry 1

Name
Merrill Lynch
Street
6002 El Tordo
Street (continued)
PO Box 7297
City
Rancho Santa Fe
State / country code
CA
Postal code
92067

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionPayment dateNature of payment
Common07/20/2021DonationErasca, Inc.10,193,557N07/20/2021Donation

Sales reported in the preceding three months

Sales reported in the preceding three months · 3 reported rows
SellerSecuritySale dateAmount soldGross proceeds
Erasca FoundationCommon08/17/20268,333152,418.71
Erasca FoundationCommon07/21/20268,333157,637.52
Erasca FoundationCommon06/15/20268,333117,476.95

Seller — prior-sale row 1, entry 1

Name
Erasca Foundation
Street
3115 MERRYFIELD ROW
Street (continued)
STE 300
City
San Diego
State / country code
CA
Postal code
92121

Seller — prior-sale row 2, entry 1

Name
Erasca Foundation
Street
3115 MERRYFIELD ROW
Street (continued)
STE 300
City
San Diego
State / country code
CA
Postal code
92121

Seller — prior-sale row 3, entry 1

Name
Erasca Foundation
Street
3115 MERRYFIELD ROW
Street (continued)
STE 300
City
San Diego
State / country code
CA
Postal code
92121

Prior-sale reporting

Nothing to report for the preceding three months
N

Notice signature

Notice date
09/15/2026
Signed
Brian Baker
Plan adoption dates
05/21/2026

Company context

At Erasca, our name is our mission: To erase cancer. We are a clinical-stage precision oncology company singularly focused on discovering, developing, and commercializing therapies for patients with RAS/MAPK pathway-driven cancers. Our company was co-founded by leading pioneers in precision oncology and RAS targeting to create novel therapies and combination regimens designed to comprehensively shut down the RAS/MAPK pathway for the treatment of patients with cancer. We believe our team’s capabilities and experience, further guided by our scientific advisory board which includes the world’s leading experts in the RAS/MAPK pathway, uniquely position us to achieve our bold mission of erasing cancer.

Current securities

Recent company filings

  1. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory ArrangementsOct 16, 2026
  2. Other EventsAug 24, 2026
  3. 144 filingAug 17, 2026
  4. 4 filingAug 12, 2026
  5. 3 filingAug 12, 2026

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