Nihanth Badugu - 22 Jul 2026 Form 4/A - Amendment Insider Report for ASTROTECH Corp (ASTC)

Reporting relationship: Chief Operating Officer
Issuer ticker: ASTC
Reported as of: 22 Jul 2026
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 08 Sep 2026, 21:11:50 UTC
Original report date: 22 Jul 2026
Prior SEC filing: 28 Aug 2025
Source filing: View source filing
Reporting owner signature: /s/ Nihanth Badugu

Key filing fact

Nihanth Badugu filed Form 4/A - Amendment for ASTROTECH Corp (ASTC) on 08 Sep 2026.

Key facts

This page summarizes Nihanth Badugu's Form 4/A - Amendment filing for ASTROTECH Corp (ASTC).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 08 Sep 2026, 21:11.

Change

Previous filing in this sequence was filed on 28 Aug 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0002083731 Primary reporting owner

Badugu Nihanth

Relationship: Chief Operating Officer
Address: 1817 W. BRAKER LN, STE 400, AUSTIN
Signature: /s/ Nihanth Badugu
Signature date: 08 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ASTC transaction

Common Stock

Award

Transaction value
Shares: +5,000
Change %
Price: $0.000000^*
Shares after: 5,000
Date: 22 Jul 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents shares of restricted stock granted to the Reporting Person pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan. The shares of restricted stock vest on each of the first three anniversaries of August 13, 2025, such that 100% of the shares of restricted stock granted shall be fully vested on August 13, 2028, subject to Reporting Person's continuous employment with the Issuer through each such applicable anniversary.

SEC remarks

The original Form 4, filed on July 22, 2026, is being amended to restate the vesting anniversary date in Note (1) as the original Form 4 erroneously indicated that the shares of restricted stock would vest in equal installments on each of the first three anniversaries of August 13, 2026, when, as reported in this amendment the shares of restricted stock vest on each of the first three anniversaries August 13, 2025, such that 100% of the shares of restricted stock granted shall be fully vested on August 13, 2028.