---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-034784"
form_type: "8-K"
ticker: "ASTC"
cik: "0001001907"
company_name: "ASTROTECH Corp"
filed_at: "2023-12-18T23:59:59+00:00"
generated_at: "2026-06-07T11:04:09.106830+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Astrotech extends shareholder rights plan expiration to Dec 20, 2024

## Summary
- Amendment No. 1 to Rights Agreement extends Final Expiration Date to 5:00 PM ET on Dec 20, 2024.
- All other terms and conditions of the Rights Agreement remain unchanged.
- Original Rights Agreement was dated December 21, 2022.
- Rights may still be redeemed or exchanged earlier in accordance with the agreement.

## SEC filing metadata
- accession: 0001437749-23-034784
- form_type: 8-K
- ticker: ASTC
- cik: 0001001907
- company_name: ASTROTECH Corp
- filed_at: 2023-12-18T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 1.01, 3.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1001907/000143774923034784/0001437749-23-034784-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1001907/000143774923034784/astc20231218_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-034784
- JSON: https://secwatch.observer/filing/0001437749-23-034784.json
- Plain text: https://secwatch.observer/filing/0001437749-23-034784.txt

## Key facts
- Material Agreements
  ASTROTECH Corp amended Amendment No. 1 to the Rights Agreement with Equiniti Trust Company (f/k/a American Stock Transfer & Trust Company, LLC) (effective 2023-12-18).
  - Action: amendment
  - Counterparty: Equiniti Trust Company (f/k/a American Stock Transfer & Trust Company, LLC)
  - Effective: 2023-12-18
  source text: On December 18, 2023, the Company entered into Amendment No. 1 to the Rights Agreement between the Company and the Rights Agent (the “Amendment”), which amends the Rights Agreement.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1001907/000143774923034784/0001437749-23-034784-index.htm

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