Astrotech director granted 6,006 restricted shares

Winn Charles Arch reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Winn Charles Arch reported acquisition or exercise transactions in this Form 4 filing.

ASTROTECH Corp director Winn Charles Arch received a grant of 6,006 shares of common stock as equity compensation. The shares were granted as restricted stock under the Astrotech Corporation 2021 Omnibus Equity Incentive Plan and vested in full on the grant date. Following this award, Arch directly holds 9,895 shares of common stock, including 485 shares held in his IRA.

Insider Trade Summary

Grant/Award: 6,006 shares

Grant/Award 1 txn

Insider Winn Charles Arch

Role Director

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

Holdings After Transaction: Common Stock — 9,895 shares (Direct)

Footnotes (2)

1. F1. Includes 485 shares of common stock held in the reporting person's IRA.
2. F2. 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 immediatelyon the grant date.

Key Figures

Restricted stock grant: 6,006 shares Price per share for grant: $0.0000 per share Shares held after transaction: 9,895 shares +1 more

4 metrics

Restricted stock grant 6,006 shares Common stock award on April 14, 2026

Price per share for grant $0.0000 per share Reported grant price for 6,006 shares

Shares held after transaction 9,895 shares Total direct common stock holdings following the award

IRA-held shares 485 shares Portion of holdings in the reporting person’s IRA

Key Terms

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

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"

IRA financial

"Includes 485 shares of common stock held in the reporting person's IRA"

An individual retirement account (IRA) is a savings account designed to help people put aside money for their retirement, often with tax advantages that encourage long-term savings. It matters to investors because it can grow over time, providing financial security later in life, and offers benefits that can reduce current taxes or allow investments to compound more effectively.

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

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

What did Winn Charles Arch report in the latest ASTC Form 4?

Winn Charles Arch reported an equity grant of 6,006 shares of Astrotech common stock. These were awarded as restricted stock under the 2021 Omnibus Equity Incentive Plan and are a form of compensation, not an open-market purchase or sale.

How many ASTROTECH (ASTC) shares does Winn Charles Arch hold after this grant?

After the grant, Winn Charles Arch holds 9,895 shares of Astrotech common stock directly. This total includes 485 shares held in his IRA, as disclosed in the Form 4 footnotes.

What type of transaction is reported for ASTROTECH director Winn Charles Arch?

The transaction is classified as a grant, award, or other acquisition of common stock. The Form 4 shows code "A," meaning he acquired 6,006 shares as a stock award, rather than buying them on the open market.

Were the ASTROTECH restricted shares granted to Winn Charles Arch immediately vested?

Yes. The Form 4 notes that 100% of the 6,006 restricted shares vested immediately on the grant date. This means all the granted shares became fully owned and no longer subject to vesting conditions on that date.

Did Winn Charles Arch pay a price per share for the ASTC stock award?

No cash price is shown; the per-share price is reported as 0.0000. This indicates the 6,006 shares were granted as compensation, not purchased, consistent with a restricted stock award under the company’s equity incentive plan.

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

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Accepted by SEC EDGAR 05/18/2026 - 08:23 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^*

Winn Charles Arch

(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(2)	A	$0	9,895(1)	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. Includes 485 shares of common stock held in the reporting person's IRA.

2. 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 immediatelyon the grant date.

Remarks:

	/s/ Charles Winn	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)