---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-21-008377"
form_type: "8-K"
ticker: "WNDW"
cik: "0001071840"
company_name: "SolarWindow Technologies, Inc."
filed_at: "2021-12-07T23:59:59+00:00"
generated_at: "2026-06-28T03:00:28.362664+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# SolarWindow extends NREL research agreement through December 31, 2024

## Summary
- On Dec 6, 2021, entered no-cost time extension to CRADA with NREL, extending performance to Dec 31, 2024.
- The CRADA uses SolarWindow's exclusive IP and NREL's background IP for product development goals per Joint Work Statement.
- Modification is a no-cost extension; no financial terms or milestones disclosed in the filing.
- The original agreement was with Alliance for Sustainable Energy, LLC, operator of NREL under DOE contract.

## SEC filing metadata
- accession: 0001171843-21-008377
- form_type: 8-K
- ticker: WNDW
- cik: 0001071840
- company_name: SolarWindow Technologies, Inc.
- filed_at: 2021-12-07T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1071840/000117184321008377/0001171843-21-008377-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1071840/000117184321008377/f8k_120621.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-21-008377
- JSON: https://secwatch.observer/filing/0001171843-21-008377.json
- Plain text: https://secwatch.observer/filing/0001171843-21-008377.txt

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