---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-333806"
form_type: "8-K"
ticker: "BLZE"
cik: "0001462056"
company_name: "Backblaze, Inc."
filed_at: "2021-11-18T23:59:59+00:00"
generated_at: "2026-06-28T06:56:37.157473+00:00"
event_type: "other"
sentiment: "positive"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Backblaze IPO underwriters exercise over-allotment for 937,500 additional shares

## Summary
- Underwriters exercised option to purchase 937,500 shares of Class A common stock to cover over-allotments.
- Over-allotment closed Nov 17, 2021; additional gross proceeds of approximately $15.0 million.
- Total IPO shares increased to 7,187,500; total gross proceeds now approximately $115.0 million.
- Proceeds net of underwriting discounts and commissions and other offering expenses.

## SEC filing metadata
- accession: 0001193125-21-333806
- form_type: 8-K
- ticker: BLZE
- cik: 0001462056
- company_name: Backblaze, Inc.
- filed_at: 2021-11-18T23:59:59+00:00
- event_type: other
- sentiment: positive
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1462056/000119312521333806/0001193125-21-333806-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1462056/000119312521333806/d442357d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-333806
- JSON: https://secwatch.observer/filing/0001193125-21-333806.json
- Plain text: https://secwatch.observer/filing/0001193125-21-333806.txt

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