---
schema_version: "secwatch.filing_event.v1"
accession: "0001125345-26-000011"
form_type: "8-K"
ticker: "MGNX"
cik: "0001125345"
company_name: "MACROGENICS INC"
filed_at: "2026-03-02T23:59:59+00:00"
generated_at: "2026-05-15T22:36:59.346569+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Director Jay Siegel to not stand for re-election at MacroGenics' 2026 annual meeting

## Summary
- Dr. Jay Siegel informed the board on February 25, 2026, that he will not stand for re-election as Class I director.
- Decision is for personal reasons and not due to any disagreement with the company or its operations.
- MacroGenics thanked Dr. Siegel for his contributions to the company.

## SEC filing metadata
- accession: 0001125345-26-000011
- form_type: 8-K
- ticker: MGNX
- cik: 0001125345
- company_name: MACROGENICS INC
- filed_at: 2026-03-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1125345/000112534526000011/0001125345-26-000011-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1125345/000112534526000011/mgnx-20260302.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001125345-26-000011
- JSON: https://secwatch.observer/filing/0001125345-26-000011.json
- Plain text: https://secwatch.observer/filing/0001125345-26-000011.txt

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