---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-013630"
form_type: "8-K"
ticker: "WINT"
cik: "0000946486"
company_name: "WINDTREE THERAPEUTICS INC /DE/"
filed_at: "2025-04-30T23:59:59+00:00"
generated_at: "2026-05-23T03:17:27.588475+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Windtree raises $2.5M via Series D convertible preferred at $1.368/share conversion price

## Summary
- Private placement of 3,125 Series D convertible preferred shares for aggregate gross proceeds of approximately $2.5 million.
- Conversion price set at $1.368 per share; 10% annual dividend (18% upon trigger events).
- Company will seek stockholder approval for common shares issuable upon conversion.
- 90-day restriction on further equity issuances; mandatory redemption of existing Series C preferred and notes from future equity line proceeds.
- Registration rights agreement requires filing resale registration statement within 15 days of closing.

## SEC filing metadata
- accession: 0001437749-25-013630
- form_type: 8-K
- ticker: WINT
- cik: 0000946486
- company_name: WINDTREE THERAPEUTICS INC /DE/
- filed_at: 2025-04-30T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/946486/000143774925013630/0001437749-25-013630-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/946486/000143774925013630/wint20250429_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-013630
- JSON: https://secwatch.observer/filing/0001437749-25-013630.json
- Plain text: https://secwatch.observer/filing/0001437749-25-013630.txt

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