---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-344783"
form_type: "8-K"
ticker: "AGEN"
cik: "0001098972"
company_name: "AGENUS INC"
filed_at: "2026-08-11T20:30:16+00:00"
generated_at: "2026-08-11T20:31:15.087147+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Agenus expands board to 7, appoints Marco Tullio Marcucci as Class II director

## Summary
- Board increased from 6 to 7 directors; Marcucci appointed Class II director effective Aug 5, 2026.
- Marcucci, Rome-based attorney, joins Corporate Governance and Nominating Committee.
- Annual retainers: $75,000 board plus $7,500 committee; granted option for 7,500 shares.
- Option vests in 3 equal annual installments starting Aug 5, 2027, subject to continued service.
- Board now: Class I (Corvese, Wright), Class II (Armen, Buell, Marcucci), Class III (Hirsch, Harrison).

## SEC filing metadata
- accession: 0001193125-26-344783
- form_type: 8-K
- ticker: AGEN
- cik: 0001098972
- company_name: AGENUS INC
- filed_at: 2026-08-11T20:30:16+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1098972/000119312526344783/0001193125-26-344783-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1098972/000119312526344783/agen-20260805.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-344783
- JSON: https://secwatch.observer/filing/0001193125-26-344783.json
- Plain text: https://secwatch.observer/filing/0001193125-26-344783.txt

## Key facts
- Executive change
  Marco Tullio Marcucci was appointed as Class II Director at AGENUS INC.
  - Action: appointed
  - Role: Class II Director
  source text: On August 5, 2026, the board of directors (the “Board”) of Agenus Inc., a Delaware corporation (the “Company”), increased the size of the Board from six (6) to seven (7) directors and appointed Marco Tullio Marcucci to fill the resulting vacancy as a Class II director, to serve until the Company’s 2029 annual meeting of stockholders and until his successor is duly elected and qualified, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1098972/000119312526344783/0001193125-26-344783-index.htm

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