Astrotech Corp (ASTC) grants director 1,055 fully vested shares

Rhea-AI Filing Summary

Halinski John William reported acquisition or exercise transactions in this Form 4 filing.

Astrotech Corp director John William Halinski received a grant of 1,055 shares of restricted Common Stock on July 9, 2026 under the Astrotech Corporation 2021 Omnibus Equity Incentive Plan.

The company states that 100% of these restricted shares vested immediately on the grant date, bringing his directly held Common Stock position to 12,211 shares.

Insider Trade Summary

Net Buyer: 1,055 shares

Net Buy 1 txn

Insider Halinski John William

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	1,055	$0.00	$0.00

Holdings After Transaction: Common Stock — 12,211 shares (Direct)

Footnotes (1)

1. F1. Represents shares of restricted stock granted to the Reporting Person pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan. 100% of the shares of restricted stock vested immediately on the grant date.

Key Figures

Restricted stock granted: 1055.0000 shares Post-transaction holdings: 12211.0000 shares Grant transaction price: $0.0000 per share +1 more

4 metrics

Restricted stock granted 1055.0000 shares Common Stock awarded on 2026-07-09 under 2021 Omnibus Equity Incentive Plan

Post-transaction holdings 12211.0000 shares Common Stock directly owned by John William Halinski after the grant

Grant transaction price $0.0000 per share Reported transaction price per share for the restricted stock grant

Immediate vesting 100% Portion of restricted stock that vested immediately on the grant date

Key Terms

restricted stock, 2021 Omnibus Equity Incentive Plan, vested immediately

3 terms

restricted stock financial

"Represents shares of restricted stock granted to the Reporting Person..."

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

2021 Omnibus Equity Incentive Plan financial

"pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan."

vested immediately financial

"100% of the shares of restricted stock vested immediately on the grant date."

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/21/2026 - 04:42 PM Accepted by SEC EDGAR 07/21/2026 - 04:42 PM Learn about SEC filing dates

FAQ

What insider transaction did Astrotech Corp (ASTC) disclose for director John William Halinski?

Astrotech Corp reported that director John William Halinski received 1,055 shares of restricted Common Stock on July 9, 2026. The award was made under the 2021 Omnibus Equity Incentive Plan and is characterized as a grant/award, not an open-market trade.

How many Astrotech Corp (ASTC) shares were granted to John William Halinski and at what price?

John William Halinski was granted 1,055 shares of Astrotech Common Stock at a reported transaction price of $0.0000 per share. This reflects a restricted stock award under the company’s 2021 Omnibus Equity Incentive Plan rather than a cash purchase.

Did the restricted stock granted to Astrotech Corp (ASTC) director John William Halinski vest immediately?

Yes. The filing states that 100% of the shares of restricted stock vested immediately on the grant date. This means Halinski’s awarded 1,055 shares became fully vested right away, with no ongoing vesting schedule tied to continued service or time.

What is John William Halinski’s Astrotech Corp (ASTC) share ownership after this grant?

Following the restricted stock grant, John William Halinski directly owns 12,211 shares of Astrotech Common Stock. This total reflects his holdings immediately after the July 9, 2026 award of 1,055 fully vested restricted shares reported in the Form 4.

Was the Astrotech Corp (ASTC) stock grant to John William Halinski under a Rule 10b5-1 trading plan?

No. The Form 4’s Rule 10b5-1 checkbox is not marked as an affirming plan, and the transaction is described as a grant of restricted stock. It is reported as equity compensation rather than a pre-arranged trading plan purchase or sale in the market.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Halinski John William

(Last) (First) (Middle)

1817 W. BRAKER LN.

SUITE 400

(Street)

AUSTIN TEXAS 78758

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ASTROTECH Corp [ ASTC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/09/2026		A		1,055(1)	A	$0	12,211	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares of restricted stock granted to the Reporting Person pursuant to the Astrotech Corporation 2021 Omnibus Equity Incentive Plan. 100% of the shares of restricted stock vested immediately on the grant date.

	/s/ John Halinski	07/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)