---
schema_version: "secwatch.filing_event.v1"
accession: "0001083301-25-000044"
form_type: "8-K"
ticker: "WULF"
cik: "0001083301"
company_name: "TERAWULF INC."
filed_at: "2025-05-30T23:59:59+00:00"
generated_at: "2026-05-20T03:59:45.000761+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# TeraWulf appoints William Tanimoto as Chief Accounting Officer effective June 20, 2025

## Summary
- Kenneth Deane resigned as Chief Accounting Officer on May 23, 2025, effective June 20, 2025, to pursue new professional opportunities.
- William Tanimoto, age 34, was appointed CAO effective June 20, 2025; previously served as Director of Financial Reporting since August 2023.
- Tanimoto has over 14 years of public company audit experience, including 11 years at Deloitte LLP, most recently as Audit Senior Manager.
- Tanimoto will report to CEO Paul Prager and CFO Patrick Fleury; no family relationships or material interests in transactions.

## SEC filing metadata
- accession: 0001083301-25-000044
- form_type: 8-K
- ticker: WULF
- cik: 0001083301
- company_name: TERAWULF INC.
- filed_at: 2025-05-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1083301/000108330125000044/0001083301-25-000044-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1083301/000108330125000044/wulf-20250523.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001083301-25-000044
- JSON: https://secwatch.observer/filing/0001083301-25-000044.json
- Plain text: https://secwatch.observer/filing/0001083301-25-000044.txt

## Key facts
- Executive change
  Kenneth Deane resigned as Chief Accounting Officer at TERAWULF INC..
  - Action: resigned
  - Role: Chief Accounting Officer
  source text: On May 23, 2025, Kenneth Deane, the Company’s Chief Accounting Officer, resigned from his role effective June 20, 2025 to focus on new professional opportunities.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1083301/000108330125000044/0001083301-25-000044-index.htm
- Executive change
  William Tanimoto was appointed as Chief Accounting Officer at TERAWULF INC..
  - Action: appointed
  - Role: Chief Accounting Officer
  source text: On May 29, 2025, the Board of Directors of TeraWulf Inc. (“TeraWulf” or the “Company”) appointed William Tanimoto as Chief Accounting Officer of the Company, effective June 20, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1083301/000108330125000044/0001083301-25-000044-index.htm

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