---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-318486"
form_type: "8-K"
ticker: "MBI"
cik: "0000814585"
company_name: "MBIA INC"
filed_at: "2021-11-03T23:59:59+00:00"
generated_at: "2026-06-28T14:42:42.042511+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# MBIA Q3 2021 net loss $123M ($2.49/share) vs $58M loss a year ago

## Summary
- Net loss of $123M ($2.49 per diluted share) vs $58M loss ($1.11) in Q3 2020.
- Losses driven by higher loss/LAE at National and MBIA Insurance Corp; gains from bond purchases and policy termination partially offset.
- National reduced Puerto Rico exposures: sold ~$199M PREPA claims, modified loss reserves; GO exposures to be eliminated upon Plan of Adjustment.
- Book value per share negative $3.12 at Sept 30, 2021 vs positive $2.55 at Dec 31, 2020.

## SEC filing metadata
- accession: 0001193125-21-318486
- form_type: 8-K
- ticker: MBI
- cik: 0000814585
- company_name: MBIA INC
- filed_at: 2021-11-03T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/814585/000119312521318486/0001193125-21-318486-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/814585/000119312521318486/d251908d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-318486
- JSON: https://secwatch.observer/filing/0001193125-21-318486.json
- Plain text: https://secwatch.observer/filing/0001193125-21-318486.txt

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