Astrotech (ASTC) director Tom Wilkinson awarded 6,006 restricted shares that vest immediately

Rhea-AI Filing Summary

Wilkinson Tom reported acquisition or exercise transactions in this Form 4 filing.

ASTROTECH Corp director Tom Wilkinson received a grant of 6,006 shares of restricted common stock. The award was made at a price of $0.00 per share and brought his direct holdings to 29,868 shares. All of the restricted shares vested immediately on the grant date.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Wilkinson Tom

Role null

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

Holdings After Transaction: Common Stock — 29,868 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Restricted stock grant: 6,006 shares Grant price: $0.00 per share Shares after transaction: 29,868 shares +2 more

5 metrics

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

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

Shares after transaction 29,868 shares Direct holdings following the grant

Vesting 100% immediate Restricted stock vested on grant date

Transaction code A Grant, award, or other acquisition

Key Terms

restricted stock, 2021 Omnibus Equity Incentive Plan, Form 4, non-derivative

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"

Form 4 regulatory

"INSIDER FILING DATA (Form 4):"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

non-derivative financial

"transaction_type": "non-derivative""

Form 4 Insider Transactions: What Each Field Means →

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^*

Wilkinson Tom

(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	29,868	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/ Tom Wilkinson	05/21/2026
	** 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)

FAQ

What insider transaction did ASTC director Tom Wilkinson report on this Form 4?

Tom Wilkinson reported receiving 6,006 shares of restricted ASTROTECH Corp common stock as an award. The shares were granted at $0.00 per share and represent equity-based compensation rather than an open-market purchase or sale.

How many ASTROTECH (ASTC) shares does Tom Wilkinson hold after this Form 4 transaction?

After the restricted stock grant, Tom Wilkinson directly holds 29,868 shares of ASTROTECH common stock. This total includes the 6,006 restricted shares reported in the filing, which vested in full on the grant date under the company’s equity plan.

What type of shares were granted to Tom Wilkinson by ASTROTECH Corp?

The Form 4 shows a grant of 6,006 shares of restricted common stock to Tom Wilkinson. These shares were issued under the Astrotech Corporation 2021 Omnibus Equity Incentive Plan and are a form of equity compensation rather than cash salary.

Did the restricted ASTROTECH (ASTC) shares granted to Tom Wilkinson vest immediately?

Yes. The footnote explains that 100% of the 6,006 restricted shares vested immediately on the grant date. This means Wilkinson gained full ownership of the awarded shares right away, instead of vesting over a multi-year schedule.

Was there any purchase or sale of ASTROTECH (ASTC) stock in this Form 4?

No open-market purchase or sale occurred in this Form 4. The filing reports a grant of 6,006 restricted shares at $0.00 per share, categorized as a grant, award, or other acquisition of non-derivative common stock under the company’s equity plan.