---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-23-028243"
form_type: "8-K"
ticker: null
cik: "0001820630"
company_name: "Proterra Inc"
filed_at: "2023-08-08T23:59:59+00:00"
generated_at: "2026-06-12T02:38:09.975346+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Proterra receives Nasdaq delisting notice after Chapter 11 filing; stock to trade OTC

## Summary
- Proterra filed Chapter 11 on Aug 7, 2023; Nasdaq delisting notice received Aug 8 citing public interest concerns.
- Company will not appeal; trading suspension effective Aug 17, 2023 and Form 25-NSE to be filed.
- Common stock to trade OTC under symbol PTRAQ starting Aug 17, 2023; previously traded as PTRA on Nasdaq.
- Delisting triggered by bankruptcy and concerns about residual equity interest and continued listing compliance.

## SEC filing metadata
- accession: 0001628280-23-028243
- form_type: 8-K
- cik: 0001820630
- company_name: Proterra Inc
- filed_at: 2023-08-08T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 3.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1820630/000162828023028243/0001628280-23-028243-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1820630/000162828023028243/ptra-20230808.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-23-028243
- JSON: https://secwatch.observer/filing/0001628280-23-028243.json
- Plain text: https://secwatch.observer/filing/0001628280-23-028243.txt

## Key facts
- Listing & Compliance Notices
  Proterra Inc received a nasdaq delisting notice notice regarding other (rules 5101, 5110(b), IM-5101-1).
  - Exchange: nasdaq
  - Notice: delisting notice
  - Rules: 5101, 5110(b), IM-5101-1
  source text: August 8, 2023, the Company received written notice (the “Delisting Notice”) from the listing qualifications department staff of The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, in accordance with Nasdaq Listing Rules 5101, 5110(b), and IM-5101-1, the staff of Nasdaq has determined that the Company’s securities will be delisted from Nasdaq. In the Delisting Notice, the staff of Nasdaq referenced the Chapter 11 filing and associated public interest concerns raised by it, concerns regarding the residual equity interest of the existing listed securities holders, and concerns abo
  evidence_url: https://www.sec.gov/Archives/edgar/data/1820630/000162828023028243/0001628280-23-028243-index.htm

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