---
schema_version: "secwatch.filing_event.v1"
accession: "0001062993-26-003037"
form_type: "8-K"
ticker: "ANY"
cik: "0001591956"
company_name: "Sphere 3D Corp."
filed_at: "2026-06-03T21:08:57+00:00"
generated_at: "2026-06-03T21:11:16.067734+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Sphere 3D completes acquisition of Cathedra Bitcoin; Block appointed CEO, board reconstituted

## Summary
- Acquisition closed June 1, 2026: Cathedra becomes wholly-owned subsidiary; each Cathedra SV share exchanged for 0.123014 Sphere common shares.
- Joel Block named CEO; receives $425,000 base salary, 125% target bonus, 500,000 RSU inducement grant, and $1.6M cash retention bonus.
- Kurt Kalbfleisch remains CFO; amended agreement provides $330,000 base, 90% target bonus, $300K transaction bonus, $1.095M retention bonus.
- Board expanded: new directors Kurt Kalbfleisch, Marcus Dent, Joel Block, Nicholas Gates; Timothy Hanley appointed Chairman.
- Sphere created Series I Preferred Shares with no general voting rights, dividends payable annually on June 1.

## SEC filing metadata
- accession: 0001062993-26-003037
- form_type: 8-K
- ticker: ANY
- cik: 0001591956
- company_name: Sphere 3D Corp.
- filed_at: 2026-06-03T21:08:57+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 5.02, 2.01, 3.02, 5.03, 3.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/form8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001062993-26-003037
- JSON: https://secwatch.observer/filing/0001062993-26-003037.json
- Plain text: https://secwatch.observer/filing/0001062993-26-003037.txt

## Key facts
- Executive change
  Duncan McEwan resigned as director at Sphere 3D Corp..
  - Action: resigned
  source text: Duncan McEwan and Susan Harnett resigned from the board of directors of Sphere
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Kurt Kalbfleisch was appointed as director at Sphere 3D Corp..
  - Action: appointed
  source text: Kurt Kalbfleisch, Marcus Dent, Joel Block and Nicholas Gates have been appointed to the Sphere Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Joel Block was appointed as Chief Executive Officer at Sphere 3D Corp..
  - Action: appointed
  - Role: Chief Executive Officer
  source text: Joel Block, age 42, was appointed Sphere's Chief Executive Officer effective as of the Closing Date
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Nicholas Gates was appointed as director at Sphere 3D Corp..
  - Action: appointed
  source text: Kurt Kalbfleisch, Marcus Dent, Joel Block and Nicholas Gates have been appointed to the Sphere Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Timothy Hanley was appointed as Chairman at Sphere 3D Corp..
  - Action: appointed
  - Role: Chairman
  source text: Timothy Hanley, has been appointed Chairman
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Joel Block was appointed as director at Sphere 3D Corp..
  - Action: appointed
  source text: Kurt Kalbfleisch, Marcus Dent, Joel Block and Nicholas Gates have been appointed to the Sphere Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Marcus Dent was appointed as director at Sphere 3D Corp..
  - Action: appointed
  source text: Kurt Kalbfleisch, Marcus Dent, Joel Block and Nicholas Gates have been appointed to the Sphere Board
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm
- Executive change
  Susan Harnett resigned as director at Sphere 3D Corp..
  - Action: resigned
  source text: Duncan McEwan and Susan Harnett resigned from the board of directors of Sphere
  evidence_url: https://www.sec.gov/Archives/edgar/data/1591956/000106299326003037/0001062993-26-003037-index.htm

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