Fundraising Fox

Erasca

NASDAQ: ERAS

San Diego, US · Founded 2018 · Delaware corporation · 115 employees on LinkedIn · Public · 7 known investors

Erasca is a clinical-stage oncology company developing therapies targeting RAS- and MAPK pathway-driven cancers using a modality-agnostic approach including small molecules, large molecules, and protein degraders.

Also known as Erasca, Inc.

Founders & leadership

Erasca was founded in 2018 by Jonathan E. Lim, M.D..

JE
Jonathan E. Lim, M.D.Chairman, CEO and Co-founder
GY
Gary Yeung, CFAChief Business Officer

Board

AW
Alexander W. CasdinBoard director
PS
Pratik S. Multani, M.D.Board director
VH
Valerie Harding-StartBoard director
JA
James A. Bristol, Ph.D.Board director

Investors · 7

Funding

SEC filings, press & company announcements

$699.7M disclosed across 3 of 4 rounds · 2018–2026

$125.4MraisedApr 2020 · 46 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Pratik S. Multani, M.D.Director
  • Jonathan E. Lim, M.D.Director
  • Valerie Harding-StartDirector
  • Alexander W. CasdinDirector
  • James A. Bristol, Ph.D.Director
  • Jonathan E. Lim, M.D.Executive Officer, Director
Offering amount
$374.5M
Amount sold
$125.4M
First sale
Apr 2020
Incorporated
Corporation, Delaware, 2018
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$58.3MraisedMar 2019 · 41 investors · Biotechnology
Rule 506(b)
Officers, directors & promoters on the filing
  • Pratik S. Multani, M.D.Director
  • Valerie Harding-StartDirector
  • Jonathan E. Lim, M.D.Executive Officer, Director
  • Gary Yeung, CFAExecutive Officer
  • Alexander W. CasdinDirector
  • James A. Bristol, Ph.D.Director
Offering amount
$70M
Amount sold
$58.3M
First sale
Oct 2018
Incorporated
Corporation, Delaware, 2018
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

Erasca, Inc. is a San Diego-based clinical-stage precision oncology company whose stated mission is to "erase cancer." The company focuses on the RAS/MAPK signaling cascade, which it describes as one of cancer's most commonly mutated pathways, affecting approximately 5.5 million people each year worldwide. Its pipeline is described as modality-agnostic and designed to target the pathway at multiple nodes, and the company's science pages reference a "MAPKlamp" approach alongside its RAS/MAPK pathway work [0][1][7].

As of a May 2022 interview, Erasca said it was researching and developing 11 precision oncology programs and characterized its portfolio as the deepest RAS/MAPK pathway-focused pipeline in the industry. Lead clinical programs at that time were ERAS-007, an ERK inhibitor, and ERAS-601, a SHP2 inhibitor, evaluated as monotherapy and in combinations through trials including HERKULES-2 (combinations with the KRAS G12C inhibitor sotorasib in non-small cell lung cancer), HERKULES-3 and FLAGSHP-1 in gastrointestinal cancers [7]. Earlier in its history, Erasca also described building an internal artificial intelligence drug discovery platform called OPRA (Oncology Pattern Recognition Algorithm) intended to analyze large-scale datasets to prioritize discovery strategies [4].

The company operates two related entities: Erasca Ventures, a wholly owned subsidiary established in March 2021 to make equity investments in early-stage biotechnology companies aligned with its mission, and the Erasca Foundation, a 501(c)(3) private foundation established in May 2021 and funded with 1,093,557 shares of common stock (then about 1% of capital stock) in conjunction with the IPO [2][3].

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
HeadcountAug 2026115

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Competitors · 2

by search overlap

Companies competing with Erasca for the same Google search keywords, organic and paid, via search-intersection analysis.

Legal entities · 1

corporate structure
ErascaDelaware

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Erasca do?
Clinical-stage precision oncology company developing therapies that target the RAS/MAPK pathway across multiple modalities.
Who founded Erasca?
Erasca was founded by Jonathan E. Lim, M.D. in 2018.
Who are Erasca's investors?
Erasca's investors include Andreessen Horowitz, ARCH Venture Partners, Evolution VC Partners, Frazier Life Sciences, City Hill Ventures, Colt Ventures, LifeSci Venture Partners.
How much funding has Erasca raised?
Erasca has disclosed $699.7M raised across 3 of its 4 known rounds.
Is Erasca publicly traded?
Yes — Erasca trades on NASDAQ under the ticker ERAS.
Where is Erasca headquartered?
Erasca is headquartered in San Diego, US.