---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-388376"
form_type: "8-K"
ticker: "PI"
cik: "0001114995"
company_name: "IMPINJ INC"
filed_at: "2026-09-11T01:31:44+00:00"
generated_at: "2026-09-11T10:05:25.139842+00:00"
event_type: "debt"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Impinj exchanges $56.3M of 2027 convertible notes for cash and ~188k shares

## Summary
- Exchanged $56.3M principal of 1.125% Convertible Senior Notes due 2027 for ~$56.5M cash and ~188,451 common shares.
- Closings expected on or about September 16, 2026; funded with cash on hand.
- Approximately $1.0M aggregate principal of 2027 Notes will remain outstanding after the exchange.
- Consideration subject to 2-day measurement period ending September 14, 2026; amounts may adjust.
- Exchange done as private placement under Section 4(a)(2); shares issued only to qualified institutional buyers.

## SEC filing metadata
- accession: 0001193125-26-388376
- form_type: 8-K
- ticker: PI
- cik: 0001114995
- company_name: IMPINJ INC
- filed_at: 2026-09-11T01:31:44+00:00
- event_type: debt
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1114995/000119312526388376/0001193125-26-388376-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1114995/000119312526388376/pi-20260910.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-388376
- JSON: https://secwatch.observer/filing/0001193125-26-388376.json
- Plain text: https://secwatch.observer/filing/0001193125-26-388376.txt

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