---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-22-023734"
form_type: "8-K"
ticker: "ORKA"
cik: "0000907654"
company_name: "Oruka Therapeutics, Inc."
filed_at: "2022-06-21T23:59:59+00:00"
generated_at: "2026-06-25T00:41:29.629714+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ARCA biopharma appoints Jacob Ma-Weaver, from largest shareholder, to board; explores strategic alternatives

## Summary
- Jacob Ma-Weaver appointed as Class III director effective June 15, 2022, term through 2024 annual meeting.
- Ma-Weaver is managing member of Cable Car Capital, ARCA's largest shareholder.
- Cooperation agreement includes standstill until 180 days after Ma-Weaver leaves board or 90 days before 2023 annual meeting.
- Company to explore and evaluate strategic options to maximize stockholder value.
- Ma-Weaver granted option to purchase 12,000 shares at $2.27 per share, vesting over 36 months.

## SEC filing metadata
- accession: 0001564590-22-023734
- form_type: 8-K
- ticker: ORKA
- cik: 0000907654
- company_name: Oruka Therapeutics, Inc.
- filed_at: 2022-06-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/907654/000156459022023734/0001564590-22-023734-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/907654/000156459022023734/abio-8k_20220615.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-22-023734
- JSON: https://secwatch.observer/filing/0001564590-22-023734.json
- Plain text: https://secwatch.observer/filing/0001564590-22-023734.txt

## Key facts
- Executive change
  Jacob Ma-Weaver was elected as director at Oruka Therapeutics, Inc..
  - Action: elected
  - Role: director
  source text: On June 15, 2022, the Board of the Company elected Jacob Ma‐Weaver as a director of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/907654/000156459022023734/0001564590-22-023734-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.