---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-234419"
form_type: "8-K"
ticker: "ANAB"
cik: "0001370053"
company_name: "ANAPTYSBIO, INC"
filed_at: "2026-05-21T20:10:15+00:00"
generated_at: "2026-05-21T22:15:37.353553+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# AnaptysBio changes fiscal year-end from Dec 31 to June 30, effective July 1, 2026

## Summary
- Board approved fiscal year change from December 31 to June 30, effective July 1, 2026.
- Company will file a transition report on Form 10-KT for the six-month period Jan 1, 2026 to June 30, 2026.
- Quarterly reports will follow new fiscal year, beginning with the quarter ending September 30, 2026.
- Change is effective for the company's next fiscal year starting July 1, 2026.

## SEC filing metadata
- accession: 0001193125-26-234419
- form_type: 8-K
- ticker: ANAB
- cik: 0001370053
- company_name: ANAPTYSBIO, INC
- filed_at: 2026-05-21T20:10:15+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1370053/000119312526234419/0001193125-26-234419-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1370053/000119312526234419/anab-20260518.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-234419
- JSON: https://secwatch.observer/filing/0001193125-26-234419.json
- Plain text: https://secwatch.observer/filing/0001193125-26-234419.txt

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