Astrotech director granted 6,006 restricted shares

MCFARLAND ROBERT N reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

MCFARLAND ROBERT N reported acquisition or exercise transactions in this Form 4 filing.

Astrotech Corp director Robert N. McFarland received a grant of 6,006 shares of common stock as equity compensation. The shares were issued as restricted stock under the Astrotech Corporation 2021 Omnibus Equity Incentive Plan at no stated purchase price.

According to the disclosure, 100% of these restricted shares vested immediately on the grant date, meaning McFarland gained full ownership and no ongoing vesting schedule applies to this award. Following the grant, he directly owns a total of 19,906 shares of Astrotech common stock.

Insider Trade Summary

Grant/Award: 6,006 shares

Grant/Award 1 txn

Insider MCFARLAND ROBERT N

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	6,006	$0.00	$0.00

Holdings After Transaction: Common Stock — 19,906 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 shares granted: 6,006 shares Grant price per share: $0.00 per share Shares after transaction: 19,906 shares +1 more

4 metrics

Restricted shares granted 6,006 shares Restricted stock award to director on grant date

Grant price per share $0.00 per share Equity compensation, not open-market purchase

Shares after transaction 19,906 shares Director’s direct holdings following the grant

Vesting 100% immediate Restricted stock fully vested on grant date

Key Terms

restricted stock, 2021 Omnibus Equity Incentive Plan, Grant, award, or other acquisition, Common Stock

4 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"

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition"

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Astrotech (ASTC) director Robert McFarland report?

Astrotech director Robert N. McFarland reported receiving 6,006 shares of common stock as a restricted stock grant. The award was made under the 2021 Omnibus Equity Incentive Plan and represents equity compensation rather than an open-market purchase or sale.

How many Astrotech (ASTC) shares did Robert McFarland acquire in this Form 4?

Robert McFarland acquired 6,006 shares of Astrotech common stock. These shares were granted at no stated purchase price as restricted stock that fully vested immediately, increasing his direct ownership position disclosed in the filing.

What is Robert McFarland’s total Astrotech (ASTC) share ownership after this grant?

After the reported grant, Robert McFarland directly owns 19,906 shares of Astrotech common stock. This total includes the 6,006 restricted shares granted and immediately vested on the transaction date, as shown in the post-transaction holdings figure.

Was the Astrotech (ASTC) insider transaction an open-market buy or sell?

The transaction was not an open-market buy or sell. It is coded as a grant or award of 6,006 restricted shares, issued at a price of $0.00 per share as equity compensation under Astrotech’s 2021 Omnibus Equity Incentive Plan.

Did the restricted stock granted to Robert McFarland in Astrotech (ASTC) vest immediately?

Yes. The filing states that 100% of the 6,006 restricted shares granted to Robert McFarland vested immediately on the grant date, so no ongoing vesting schedule applies to this specific equity award.

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

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Accepted by SEC EDGAR 05/18/2026 - 08:20 PM EDT Learn about SEC filing dates

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^*

MCFARLAND ROBERT N

(Last) (First) (Middle)

1817 W. BRAKER LN, STE 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)
04/14/2026

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	04/14/2026		A		6,006(1)	A	$0	19,906	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/ Robert N. McFarland	05/18/2026
	** 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)