---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-028569"
form_type: "8-K"
ticker: "ASTC"
cik: "0001001907"
company_name: "ASTROTECH Corp"
filed_at: "2026-08-19T21:26:25+00:00"
generated_at: "2026-08-19T21:28:08.986229+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Astrotech expands ATM equity program from $24.5M to $50M

## Summary
- Aug 19, 2026: filed prospectus supplement to sell up to $50M in shares via ATM.
- Replaces prior supplement allowing ~$24.5M; Wainwright remains sales agent.
- As of Aug 19, 2026: sold 258,856 shares for ~$7.9M gross proceeds.
- New S-3 shelf (333-297144) declared effective July 7, 2026.
- No further sales allowed under prior prospectus supplement.

## SEC filing metadata
- accession: 0001437749-26-028569
- form_type: 8-K
- ticker: ASTC
- cik: 0001001907
- company_name: ASTROTECH Corp
- filed_at: 2026-08-19T21:26:25+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1001907/000143774926028569/0001437749-26-028569-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1001907/000143774926028569/astc20260818_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-028569
- JSON: https://secwatch.observer/filing/0001437749-26-028569.json
- Plain text: https://secwatch.observer/filing/0001437749-26-028569.txt

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