Agent View

Machine representations

Inspect the same governed public record as Markdown, structured data, or a retrieval endpoint.

Canonical entity
alpha:person:bill-sibold-2
Schema
alpha.governance.entity.public.v1
Last reviewed
2026-05-16T12:22:22.912+00:00
Verification
corroborated
Ownership
unclaimed

Markdown

https://registry.alpha.ac/people/bill-sibold-2.md
Open Markdown

Bill Sibold

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 Unknown, unavailable, and unpublished values are never inferred as zero.

Record

FieldValue
Representationalpha-profile-markdown-v3
ProtocolAlpha Governance Facts Protocol 0.1
Schemaalpha.governance.entity.public.v1
Record versionpublic-0
Canonical entityalpha:person:bill-sibold-2
Entity typePerson
Canonical URLhttps://registry.alpha.ac/people/bill-sibold-2
PublicationPUBLISHED
Verificationcorroborated
Verification schemaalpha-verification-states-v1
Ownershipunclaimed
Published claims10
Claims under review0
Evidence records5
Conflicts0
Conflicts in internal review0
Observed2026-09-25T07:27:37.018752+00:00
Last reviewed2026-05-16T12:22:22.912+00:00

Identity

  • Legal name: Bill Sibold
  • Display name: Bill Sibold

Leadership

  • PUBLISHED

Roles

  • Director at MADRIGAL PHARMACEUTICALS, INC.. Valid from: 2023-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:4.

Governance

  • PUBLISHED

Board committees

  • PUBLISHED

AI and ML experience

  • AI and ML experience: not identified in the cited filing. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2, alpha:evidence:person:bill-sibold-2:1.

Board independence

  • Not independent (executive director). Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:3.

Board membership

  • Serves on the board of Madrigal Pharmaceuticals. Valid from: 2023-01-01. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:3, alpha:evidence:person:bill-sibold-2:5.

Board role

  • Board role: Director. Valid from: 2025-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2.

Committee assignments

  • No committee assignment disclosed in the cited filing. Valid from: 2025-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2.

Cybersecurity experience

  • Cybersecurity experience: not identified in the cited filing. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2, alpha:evidence:person:bill-sibold-2:1.

Executive company

  • Executive at Madrigal Pharmaceuticals, Inc.. Valid from: 2026-04-28. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2, alpha:evidence:person:bill-sibold-2:1.

Executive title

  • Executive title: President and Chief Executive Officer. Valid from: 2026-04-28. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2, alpha:evidence:person:bill-sibold-2:1.

Technology background

  • Technology background: not identified in the cited filing. Publication: PUBLISHED. Verification: corroborated. Assertion: source_reported. Evidence: alpha:evidence:person:bill-sibold-2:2, alpha:evidence:person:bill-sibold-2:1.

Coverage states

FieldValue
IdentityPUBLISHED
BusinessNOT_APPLICABLE
LeadershipPUBLISHED
Board and committeesPUBLISHED
GovernancePUBLISHED
FinancialsNOT_APPLICABLE
WorkforceNOT_APPLICABLE
OwnershipNOT_APPLICABLE
RatingsNOT_PUBLISHED
Market and index contextNOT_APPLICABLE

Public sources

Rights

FieldValue
public_retrievalallowed
agent_retrievalallowed
redistributionnot_granted
model_trainingnot_granted
commercial_usenot_specified
relationship_pathfindingnot_granted
direct_contactnot_granted

Limitations

  • Only permissioned public claims and evidence are included.
  • Absence of a claim is not evidence that the underlying fact is false.
  • Public retrieval does not grant model-training or redistribution rights.
  • Private relationships and Council activity are excluded.

Alternate representations

Connected governance records

Structured intelligence is not currently available. Existing published profile evidence remains accessible.