---
schema_version: "secwatch.filing_event.v1"
accession: "0001370053-23-000058"
form_type: "8-K"
ticker: "ANAB"
cik: "0001370053"
company_name: "ANAPTYSBIO, INC"
filed_at: "2023-10-25T23:59:59+00:00"
generated_at: "2026-06-09T10:03:22.357796+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "low"
source: SEC EDGAR
---

# AnaptysBio presents R&D slide deck on PD-1 agonist rosnilimab

## Summary
- Presented rosnilimab (PD-1 agonist) R&D slide presentation on October 25, 2023.
- No specific clinical data, milestones, or financial guidance disclosed in the filing.
- Presentation provided as Exhibit 99.1; not filed, only furnished under Regulation FD.

## SEC filing metadata
- accession: 0001370053-23-000058
- form_type: 8-K
- ticker: ANAB
- cik: 0001370053
- company_name: ANAPTYSBIO, INC
- filed_at: 2023-10-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1370053/000137005323000058/0001370053-23-000058-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1370053/000137005323000058/anab-20231025.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001370053-23-000058
- JSON: https://secwatch.observer/filing/0001370053-23-000058.json
- Plain text: https://secwatch.observer/filing/0001370053-23-000058.txt

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