---
schema_version: "secwatch.filing_event.v1"
accession: "0001070235-21-000099"
form_type: "8-K"
ticker: "BB"
cik: "0001070235"
company_name: "BLACKBERRY Ltd"
filed_at: "2021-09-23T23:59:59+00:00"
generated_at: "2026-06-29T01:42:08.198204+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# BlackBerry COO Tom Eacobacci resigns; John Giamatteo to lead Cyber Security unit

## Summary
- Tom Eacobacci resigns as President and COO effective Oct 29, 2021 to pursue other opportunities.
- John Giamatteo appointed President of Cyber Security business unit effective Oct 4, 2021.
- Eacobacci will cooperate with transition of Cyber Security unit responsibilities to Giamatteo.
- Resignation not due to any disagreement with the company.

## SEC filing metadata
- accession: 0001070235-21-000099
- form_type: 8-K
- ticker: BB
- cik: 0001070235
- company_name: BLACKBERRY Ltd
- filed_at: 2021-09-23T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1070235/000107023521000099/0001070235-21-000099-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1070235/000107023521000099/bbry-20210922.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001070235-21-000099
- JSON: https://secwatch.observer/filing/0001070235-21-000099.json
- Plain text: https://secwatch.observer/filing/0001070235-21-000099.txt

## Key facts
- Executive change
  Thomas Eacobacci resigned as President and Chief Operating Officer at BLACKBERRY Ltd.
  - Action: resigned
  - Role: President and Chief Operating Officer
  source text: On September 20, 2021, Thomas (Tom) Eacobacci, President and Chief Operating Officer of BlackBerry Limited (the “Company”), provided notice of his intention to leave the Company to pursue other opportunities with effect as of October 29, 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1070235/000107023521000099/0001070235-21-000099-index.htm
- Executive change
  John Giamatteo was appointed as President of the Company’s Cyber Security business unit at BLACKBERRY Ltd.
  - Action: appointed
  - Role: President of the Company’s Cyber Security business unit
  source text: On September 22, 2021, the Company announced Mr. Eacobacci’s resignation and that John Giamatteo has been appointed as the President of the Company’s Cyber Security business unit effective as of October 4, 2021.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1070235/000107023521000099/0001070235-21-000099-index.htm

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