---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-003106"
form_type: "8-K"
ticker: "SIGA"
cik: "0001010086"
company_name: "SIGA TECHNOLOGIES INC"
filed_at: "2024-01-22T23:59:59+00:00"
generated_at: "2026-06-06T20:26:44.122148+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# SIGA appoints Diem Nguyen as CEO effective Jan 27, 2024; Phil Gomez retires

## Summary
- Diem Nguyen appointed CEO and board member effective Jan 27, 2024; Phil Gomez retires Jan 26.
- Compensation includes $900K base salary, $450K 2024 bonus, $450K sign-on bonus, and equity grants valued at ~$3.15M.
- Nguyen brings experience from Xalud Therapeutics (CEO), PPD (EVP biopharma), and Pfizer (global president, Americas Essential Health).
- Employment agreement includes severance: 2x base salary for qualifying termination, 3x base plus bonus upon change of control.

## SEC filing metadata
- accession: 0001140361-24-003106
- form_type: 8-K
- ticker: SIGA
- cik: 0001010086
- company_name: SIGA TECHNOLOGIES INC
- filed_at: 2024-01-22T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1010086/000114036124003106/0001140361-24-003106-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1010086/000114036124003106/ef20019267_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-003106
- JSON: https://secwatch.observer/filing/0001140361-24-003106.json
- Plain text: https://secwatch.observer/filing/0001140361-24-003106.txt

## Key facts
- Executive change
  Diem Nguyen was appointed as Chief Executive Officer at SIGA TECHNOLOGIES INC.
  - Action: appointed
  - Role: Chief Executive Officer
  source text: On January 22, 2024, SIGA Technologies, Inc. (the “Company”) announced the appointment of Diem Nguyen, Ph.D., MBA, as Chief Executive Officer of the Company and a member of the Company’s Board of Directors, in each case, effective as of January 27, 2024
  evidence_url: https://www.sec.gov/Archives/edgar/data/1010086/000114036124003106/0001140361-24-003106-index.htm

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