Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

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1. Name and Address of Reporting Person * Unterseher Loren A 2. Issuer Name and Ticker or Trading Symbol SkyWater Technology, Inc [SKYT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 701 XENIA AVENUE S., SUITE 650 3. Date of Earliest Transaction (Month/Day/Year) 07/28/2026 (Street) MINNEAPOLIS, MN 55416 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) 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 07/28/2026 G 160,321 D $ 0 1,069,543 I By 2024 grantor retained annuity trust Common Stock 07/28/2026 G 160,321 A $ 0 812,139 I By revocable trust Common Stock(1) 07/31/2026 D 1,069,543 D (1) 0 I By 2024 grantor retained annuity trust Common Stock(1) 07/31/2026 D 812,139 D (1) 0 I By revocable trust Common Stock(1) 07/31/2026 D 23,713 D (1) 0 D (2) Common Stock(1) 07/31/2026 D 3 D (1) 0 D (3) Common Stock(1) 07/31/2026 D 4,487,394 D (1) 0 D (4) Common Stock(5) 07/31/2026 D 4,304 D (5) 0 D (2) Common Stock(1) 07/31/2026 D 531,283 D (1) 0 I By family irrevocable trust Common Stock(1) 07/31/2026 D 2 D (1) 0 I By revocable trust Common Stock(1) 07/31/2026 D 687,811 D (1) 0 I By trust for benefit of daughter Common Stock(1) 07/31/2026 D 687,811 D (1) 0 I By trust for benefit of daughter Common Stock(1) 07/31/2026 D 687,812 D (1) 0 I By trust for benefit of son Common Stock(1) 07/31/2026 D 687,812 D (1) 0 I By trust for benefit of son

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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Unterseher Loren A 701 XENIA AVENUE S. SUITE 650 MINNEAPOLIS, MN 55416	X	X
CMI Oxbow Partners, LLC 701 XENIA AVENUE S. SUITE 650 MINNEAPOLIS, MN 55416	X	X
Oxbow Industries, LLC 701 XENIA AVENUE S. SUITE 650 MINNEAPOLIS, MN 55416	X	X

Signatures

/s/ Loren A. Unterseher		07/31/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents shares of common stock of SkyWater Technology, Inc. ("SkyWater") disposed of pursuant to the consummation of the transactions contemplated by the Agreement and Plan of Merger (the "Merger Agreement"), dated as of January 25, 2026, by and among SkyWater, IonQ, Inc. ("IonQ"), Merger Subsidiary 1 Inc. ("Merger Subsidiary 1"), and Iris Merger Subsidiary 2 LLC (now known as SkyWater Technology, LLC) ("Surviving Company"), including the merger of Iris Merger Subsidiary 1 with and into SkyWater (the "First Merger"), immediately followed by the merger of SkyWater with and into Surviving Company (the "Second Merger"). At the effective time of the First Merger (the "Effective Time"), each share of SkyWater common stock outstanding immediately prior to the Effective Time (subject to certain exceptions described in the Merger Agreement) automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.
(2)	Owned directly by Mr. Unterseher.
(3)	Shares held directly by Oxbow Industries, LLC ("Oxbow").
(4)	Mr. Unterseher is President of CMI Oxbow Partners, LLC ("CMI") and Managing Partner of Oxbow, which is the majority member of CMI. CMI directly holds the shares of SkyWater common stock reported in Column 5. As a result, he may be deemed to be the beneficial owner of, and to have a pecuniary interest in, such shares of SkyWater common stock. Mr. Unterseher disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.
(5)	Represents restricted stock units relating to shares of SkyWater common stock. Pursuant to the Merger Agreement, prior to the Effective Time, each award of restricted stock units relating to shares of SkyWater common stock held by a non-employee member of SkyWater's board of directors that was outstanding, whether vested or unvested, automatically became fully vested and settled in shares of SkyWater common stock. At the Effective Time, each share of SkyWater common stock automatically converted into the right to receive $15 in cash and 0.4883 shares of common stock of IonQ plus cash in lieu of any fractional shares.
Remarks: AS A RESULT OF THE FIRST MERGER, THE REPORTING PERSON NO LONGER BENEFICIALLY OWNS, DIRECTLY OR INDIRECTLY, ANY SHARES OF SKYWATER COMMON STOCK. AS NOTED IN FOOTNOTE 1, IN THE SECOND MERGER, SKYWATER MERGED WITH AND INTO SKYWATER TECHNOLOGY, LLC (FORMERLY KNOWN AS IRIS MERGER SUBSIDIARY 2 LLC), WITH SKYWATER TECHNOLOGY, LLC SURVIVING THE MERGER.

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