---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-21-041838"
form_type: "8-K"
ticker: "SIGA"
cik: "0001010086"
company_name: "SIGA TECHNOLOGIES INC"
filed_at: "2021-12-15T23:59:59+00:00"
generated_at: "2026-06-28T00:45:29.637458+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# SIGA Technologies amends bylaws; removes 2016 Reorganization Plan provisions, adds majority-vote amendment requirement

## Summary
- Board amended and restated bylaws effective Dec. 9, 2021.
- Removed provisions related to 2016 Plan of Reorganization that were no longer applicable.
- Updated rules on uncertificated shares of stock.
- Shareholder vote to amend bylaws now requires majority of outstanding capital stock entitled to vote.
- Changes are ministerial, clarifying, and conforming in nature.

## SEC filing metadata
- accession: 0001140361-21-041838
- form_type: 8-K
- ticker: SIGA
- cik: 0001010086
- company_name: SIGA TECHNOLOGIES INC
- filed_at: 2021-12-15T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1010086/000114036121041838/0001140361-21-041838-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1010086/000114036121041838/brhc10031950_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-21-041838
- JSON: https://secwatch.observer/filing/0001140361-21-041838.json
- Plain text: https://secwatch.observer/filing/0001140361-21-041838.txt

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