# Erasca, Inc.

> Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero.

## Record

| Field | Value |
| --- | --- |
| Representation | alpha-profile-markdown-v4 |
| Protocol | Alpha Governance Facts Protocol 0.1 |
| Schema | alpha.governance.entity.public.v1 |
| Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce |
| Governance record representation | alpha-governance-record-v2 |
| Canonical entity | alpha:company:2a7419b6-9334-479d-bf92-d6f04ce4a351 |
| Entity type | Company |
| Canonical URL | https://registry.alpha.ac/companies/erasca-inc |
| Publication | PUBLISHED |
| Verification | source_reported |
| Verification schema | alpha-verification-states-v1 |
| Ownership | unclaimed |
| Published claims | 15 |
| Claims under review | 1 |
| Evidence records | 7 |
| Conflicts | 0 |
| Conflicts in internal review | 0 |
| Observed | 2026-10-16T13:51:55.971604+00:00 |
| Last reviewed | 2026-10-16T13:51:55.971604+00:00 |

## Identity

- Legal name: Erasca, Inc.
- Display name: Erasca, Inc.

## Alpha Governance Record

| Field | Value |
| --- | --- |
| Governance Record schema | alpha-governance-record-v2 |
| Ontology | alpha-governance-ontology-v1 |
| Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce |
| As of | 2026-10-17T03:36:38.837412+00:00 |
| Completeness | 0.409 |
| Record Quality | 0.83 |
| Directors | 2 |
| Committees | 2 |
| Governance events | 6 |
| Entity class | public_company |

## Section coverage

| Section | State |
| --- | --- |
| identity | PUBLISHED |
| corporate_structure | NOT_REVIEWED |
| board | PUBLISHED |
| committees | PUBLISHED |
| leadership | PUBLISHED |
| ownership | NOT_REVIEWED |
| financials | NOT_REVIEWED |
| capital_structure | PUBLISHED |
| compensation | NOT_REVIEWED |
| governance | NOT_REVIEWED |
| shareholder_governance | NOT_REVIEWED |
| audit | NOT_REVIEWED |
| legal | NOT_REVIEWED |
| risk | NOT_REVIEWED |
| cyber | NOT_REVIEWED |
| ai_governance | NOT_REVIEWED |
| agent_governance | RESTRICTED |
| markets_external | NOT_REVIEWED |
| events | PUBLISHED |
| relationships | PUBLISHED |
| assessments | PUBLISHED |
| evidence | PUBLISHED |

## Board

- Jonathan E. Lim, M.D.: Director. Status: current. Independent: false. Since: 2018-01-01. claim_id=alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:6
- Valerie Harding-Start, Ph.D.: Director. Status: current. Independent: true. Since: 2019-01-01. Committees: Compensation (member); Nominating/Governance (chair). claim_id=alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:7

## Committees

- Compensation (compensation). Chair: NOT_PUBLISHED. Members: Valerie Harding-Start, Ph.D. (member, current). committee_id=alpha:committee:erasca-inc:compensation
- Nominating/Governance (nominating_governance). Chair: Valerie Harding-Start, Ph.D.. Members: Valerie Harding-Start, Ph.D. (chair, current). committee_id=alpha:committee:erasca-inc:nominating-governance

## Executive leadership

- David M. Chacko, M.D.: Chief Financial Officer and Chief Business Officer [CFO]. Status: current. claim_id=alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:8
- Ebun S. Garner, J.D.: Chief Legal Officer and Corporate Secretary [GC]. Status: current. claim_id=alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:9
- Jonathan E. Lim, M.D.: Chairman of the Board, Chief Executive Officer, and Co-Founder [CEO]. Status: current. claim_id=alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:10
- Shannon R. Morris, M.D., Ph.D.: Chief Medical Officer. Status: current. claim_id=alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:11

## Governance events

- CFO_CHANGED: David M. Chacko, M.D. executive of Erasca, Inc., effective 2026-04-28. Effective: 2026-04-28. Detected: 2026-10-16T13:51:55.971604+00:00. event_id=alpha:event:transition:1e02b1hn50rd
- GC_CHANGED: Ebun S. Garner, J.D. executive of Erasca, Inc., effective 2026-04-28. Effective: 2026-04-28. Detected: 2026-10-16T13:51:55.971604+00:00. event_id=alpha:event:transition:dps3691s8m6av
- CEO_CHANGED: Jonathan E. Lim, M.D. executive of Erasca, Inc., effective 2026-04-28. Effective: 2026-04-28. Detected: 2026-10-16T13:51:55.971604+00:00. event_id=alpha:event:transition:gquv2c162jq96
- EXECUTIVE_APPOINTED: Shannon R. Morris, M.D., Ph.D. executive of Erasca, Inc., effective 2026-04-28. Effective: 2026-04-28. Detected: 2026-10-16T13:51:55.971604+00:00. event_id=alpha:event:transition:tomr6adwrir8
- DIRECTOR_APPOINTED: Valerie Harding-Start, Ph.D. seat on Erasca, Inc., effective 2019-01-01. Effective: 2019-01-01. Detected: 2026-10-16T13:51:55.971604+00:00. event_id=alpha:event:transition:1wnjftx11mgk5
- DIRECTOR_APPOINTED: Jonathan E. Lim, M.D. seat on Erasca, Inc., effective 2018-01-01. Effective: 2018-01-01. Detected: 2026-10-16T13:51:55.971604+00:00. event_id=alpha:event:transition:jy1itz1o82rkh

## Scoped resources

- `alpha://company/erasca-inc` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record
- `alpha://company/erasca-inc/identity` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=identity
- `alpha://company/erasca-inc/corporate-structure` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=corporate-structure
- `alpha://company/erasca-inc/board` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=board
- `alpha://company/erasca-inc/committees` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=committees
- `alpha://company/erasca-inc/leadership` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=leadership
- `alpha://company/erasca-inc/ownership` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=ownership
- `alpha://company/erasca-inc/financials` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=financials
- `alpha://company/erasca-inc/capital-structure` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=capital-structure
- `alpha://company/erasca-inc/compensation` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=compensation
- `alpha://company/erasca-inc/governance` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=governance
- `alpha://company/erasca-inc/shareholder-governance` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=shareholder-governance
- `alpha://company/erasca-inc/audit` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=audit
- `alpha://company/erasca-inc/legal` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=legal
- `alpha://company/erasca-inc/risk` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=risk
- `alpha://company/erasca-inc/cyber` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=cyber
- `alpha://company/erasca-inc/ai-governance` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=ai-governance
- `alpha://company/erasca-inc/agents` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=agents
- `alpha://company/erasca-inc/ecosystem` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=ecosystem
- `alpha://company/erasca-inc/events` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=events
- `alpha://company/erasca-inc/relationships` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=relationships
- `alpha://company/erasca-inc/assessments` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=assessments
- `alpha://company/erasca-inc/evidence` (contract): https://registry.alpha.ac/api/public/companies/erasca-inc?format=record&section=evidence

## Role modules

- NOT_ASSERTED

## Attention

- NO_RECORDS_FOUND

## Committee data

- Claim alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:committee_appointment:13: `{"kind":"committee_appointment","original_name":"Compensation","category":"compensation","role":"member","person":{"alpha_id":"alpha:person:valerie-harding-start-ph-d","name":"Valerie Harding-Start, Ph.D."},"source_id":"governance_people_committees"}`
- Claim alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:committee_appointment:15: `{"kind":"committee_appointment","original_name":"Nominating/Governance","category":"nominating_governance","role":"chair","person":{"alpha_id":"alpha:person:valerie-harding-start-ph-d","name":"Valerie Harding-Start, Ph.D."},"source_id":"governance_people_committees"}`

## Leadership

- Jonathan E. Lim, M.D.: Director. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:6. Valid from: 2018-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:540581f1b8482b361ba07201ad2412154ac5c5e786e1d8cba2f0e204cf6284bb.
- Valerie Harding-Start, Ph.D.: Director. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:7. Valid from: 2019-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:540581f1b8482b361ba07201ad2412154ac5c5e786e1d8cba2f0e204cf6284bb.
- David M. Chacko, M.D.: Chief Financial Officer and Chief Business Officer. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:8. Valid from: 2026-04-28. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:412b83bfb14397b8005b7fc451c39788f8168f1f145f8e0a7bea774e9af756a1.
- Ebun S. Garner, J.D.: Chief Legal Officer and Corporate Secretary. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:9. Valid from: 2026-04-28. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:762d5efd44c1ac363c7f7ee335b697161872d744a6ae6292b4a367adebaa2468.
- Jonathan E. Lim, M.D.: Chairman of the Board, Chief Executive Officer, and Co-Founder. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:10. Valid from: 2026-04-28. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:07d357254ca24c9b6a5b3ef6ee5d9c280e7df7dfc7829125eafc8fca9e605d1f.
- Shannon R. Morris, M.D., Ph.D.: Chief Medical Officer. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:leadership_role:11. Valid from: 2026-04-28. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:c6c93afca5ce86fc12c4ff41bd090b005f535613a664fa9b17d33b8520fa9e73.

## Roles

- PUBLISHED

## Governance

- NOT_ASSERTED

## Board committees

- Compensation: Chair not stated; Members Valerie Harding-Start, Ph.D.. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:committee_record:12. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:6d7d63d6573dfa0c7f4aaa4fcfb925d40eb1132912a2b91b9ce65729717f6701.
- Nominating/Governance: Chair Valerie Harding-Start, Ph.D.; Members Valerie Harding-Start, Ph.D. (Chair). Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:committee_record:14. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:6d7d63d6573dfa0c7f4aaa4fcfb925d40eb1132912a2b91b9ce65729717f6701.

## Financials

- NOT_ASSERTED

## Workforce

- NOT_ASSERTED

## Market and index context

- PUBLISHED

## Legal Name

- Erasca, Inc.. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:legal_name:1. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:906b3547f4c1ce2ff6f0ac1e277ce8fa6ead6231798b1297751cd9950a9ed7c6.

## Entity Status

- Public listing published. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:entity_status:3. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:906b3547f4c1ce2ff6f0ac1e277ce8fa6ead6231798b1297751cd9950a9ed7c6.

## Published Fact

- US. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:published_fact:4. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:906b3547f4c1ce2ff6f0ac1e277ce8fa6ead6231798b1297751cd9950a9ed7c6.
- Healthcare. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:published_fact:5. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:906b3547f4c1ce2ff6f0ac1e277ce8fa6ead6231798b1297751cd9950a9ed7c6.

## Committee Appointment

- Valerie Harding-Start, Ph.D.: member, Compensation. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:committee_appointment:13. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:6d7d63d6573dfa0c7f4aaa4fcfb925d40eb1132912a2b91b9ce65729717f6701.
- Valerie Harding-Start, Ph.D.: chair, Nominating/Governance. Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:committee_appointment:15. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:6d7d63d6573dfa0c7f4aaa4fcfb925d40eb1132912a2b91b9ce65729717f6701.

## Security Listing

- ERAS (NASDAQ). Claim: alpha:claim:company:2a7419b6-9334-479d-bf92-d6f04ce4a351:security_listing:16. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:906b3547f4c1ce2ff6f0ac1e277ce8fa6ead6231798b1297751cd9950a9ed7c6.

## Coverage states

| Field | Value |
| --- | --- |
| Identity | PUBLISHED |
| Business | PUBLISHED |
| Leadership | PUBLISHED |
| Board and committees | PUBLISHED |
| Governance | NOT_ASSERTED |
| Financials | NOT_ASSERTED |
| Workforce | NOT_ASSERTED |
| Ownership | NOT_ASSERTED |
| Ratings | NOT_PUBLISHED |
| Market and index context | PUBLISHED |

## Public sources

- alpha:projection-evidence:906b3547f4c1ce2ff6f0ac1e277ce8fa6ead6231798b1297751cd9950a9ed7c6: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/erasca-inc).
- alpha:projection-evidence:document:540581f1b8482b361ba07201ad2412154ac5c5e786e1d8cba2f0e204cf6284bb: [Erasca Inc DEF 14A 2025-04-29](https://www.sec.gov/Archives/edgar/data/1761918/000119312525103868/d897507ddef14a.htm).
- alpha:projection-evidence:document:412b83bfb14397b8005b7fc451c39788f8168f1f145f8e0a7bea774e9af756a1: [ERAS DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1761918/000119312526187361/d946333ddef14a.htm).
- alpha:projection-evidence:document:762d5efd44c1ac363c7f7ee335b697161872d744a6ae6292b4a367adebaa2468: [ERAS DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1761918/000119312526187361/d946333ddef14a.htm).
- alpha:projection-evidence:document:07d357254ca24c9b6a5b3ef6ee5d9c280e7df7dfc7829125eafc8fca9e605d1f: [ERAS DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1761918/000119312526187361/d946333ddef14a.htm).
- alpha:projection-evidence:document:c6c93afca5ce86fc12c4ff41bd090b005f535613a664fa9b17d33b8520fa9e73: [ERAS DEF 14A executive officers](https://www.sec.gov/Archives/edgar/data/1761918/000119312526187361/d946333ddef14a.htm).
- alpha:projection-evidence:6d7d63d6573dfa0c7f4aaa4fcfb925d40eb1132912a2b91b9ce65729717f6701: [Compensation](https://www.sec.gov/Archives/edgar/data/1761918/000119312525103868/d897507ddef14a.htm).

## Rights

| Field | Value |
| --- | --- |
| public_retrieval | allowed |
| agent_retrieval | allowed |
| redistribution | not_granted |
| model_training | not_granted |
| commercial_use | not_specified |
| relationship_pathfinding | not_granted |
| direct_contact | not_granted |

## Limitations

- Absence of a leadership role, committee, or disclosure is not evidence that it does not exist.
- Only explicitly published canonical company identity and current confirmed public roles are included.
- Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist.
- Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights.
- This Company Profile is an identity and evidence record, not an Alpha rating.

## Alternate representations

- [Canonical profile](https://registry.alpha.ac/companies/erasca-inc)
- [Public Markdown](https://registry.alpha.ac/companies/erasca-inc.md)
- [Public JSON](https://registry.alpha.ac/api/public/companies/erasca-inc?format=record)
- [JSON-LD](https://registry.alpha.ac/api/public/companies/erasca-inc?format=jsonld)
- MCP resource: `alpha://companies/erasca-inc` at https://mcp.alpha.ac/mcp


## Connected governance records

Only explicitly published, rights-cleared records. Missing records do not establish absence, safety, or complete coverage.

## Critical-risk oversight

Snapshot as of 2026-10-17T03:36:38.638332+00:00; recorded 2026-10-17T03:36:38.638332+00:00. Every published assignment for this snapshot is listed.
Only explicitly reviewed, rights-cleared assignments in effect on the as-of date, in the company's own wording.
An assignment shows where oversight is placed, not whether it is effective. Missing records do not establish absence.