FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Winn Interests, Ltd. 2. Date of Event Requiring Statement (Month/Day/Year) 10/09/2018 3. Issuer Name and Ticker or Trading Symbol ASTROTECH Corp [ASTC] (Last) (First) (Middle) 800 N. SHORELINE 1900, N. TOWER 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CORPUS CHRISTI, TX 78401 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 523,386 D   Common Stock 3,559 I By Charles Winn Rollover 401(k). See footnote (1) (1) Common Stock 1,440 I By Charles Winn's wife. See footnote (1) (1) Common Stock 3,440 I See footnote (1) (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Winn Interests, Ltd. 800 N. SHORELINE 1900 N. TOWER CORPUS CHRISTI, TX 78401	Â	  X	Â	Â

Signatures

/s/ Michael W. Calley		10/19/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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).
(1)	523,386 of these shares of Common Stock are held of record by Winn Interests, Ltd. ("Winn Interests"). Each of Charles Winn, Tom Winn and Southern Winn are 33% limited partners of Winn Interests and, as a result, have shared voting and dispositive power over the shares held by Winn Interests. Each of Charles Winn, Tom Winn and Southern Winn disclaim beneficial ownership of the shares held by Winn Interests except to the extent of his proportionate pecuniary interest therein. In addition, Charles Winn owns 3440 shares of Common Stock directly and 3559 shares of Common Stock through his rollover IRA, and may be deemed to beneficially own 1440 shares of Common Stock owned directly by his wife, which beneficial ownership he disclaims.

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