SkyWater Technology, Inc — Director's Dealing 2025

May 23, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SkyWater Technology, Inc (SKYT)
CIK: 0001819974
Period of Report: 2025-04-04

Reporting Person: Unterseher Loren A (N/A)
Reporting Person: CMI Oxbow Partners, LLC (Director, 10% Owner)
Reporting Person: Oxbow Industries, LLC (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-04	Common Stock	J	162392	$6.10	Disposed	2	Indirect
2025-05-21	Common Stock	A	11428	—	Acquired	23713	Direct
2025-05-22	Common Stock	S	134049	$9.4077	Disposed	11026783	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2480746	Indirect
Common Stock	230580	Indirect
Common Stock	230580	Indirect
Common Stock	230579	Indirect
Common Stock	230579	Indirect
Common Stock	3	Direct
Common Stock	52317	Indirect
Common Stock	531283	Indirect
Common Stock	1229864	Indirect

Footnotes

F1: On April 4, 2025, 40,598 shares of common stock were transferred from the revocable trust to each of the four trusts for benefit of Mr. Unterseher's children in exchange for cash contributions to the revocable trust representing the fair market value of the shares based on the closing price of the issuer's common stock on the same date. Mr. Unterseher remains an indirect beneficial owner of the subject securities, which are now held by the trusts.

F2: Represents a grant of restricted stock units ("RSUs"). The RSUs vest on the date immediately preceding the next occurring annual meeting of the Issuer's stockholders, contingent on the reporting person's continued service on such vesting date.

F3: Shares owned directly by Mr. Unterseher.

F4: Reflects the weighted average price of 134,049 shares of common stock of SkyWater Technology, Inc. sold in multiple transactions on May 22, 2025 with sale prices ranging from $9.40 to $9.4991 per share. The reporting person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

F5: Mr. Unterseher is President of CMI Oxbow Partners, LLC ("CMI") and Managing Partner of Oxbow Industries, LLC ("Oxbow"), which is the majority member of CMI. CMI directly holds the shares of 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 Common Stock. Mr. Unterseher disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.

F6: On April 4, 2025, the reporting person transferred a 40,598 shares of common stock from the revocable trust to each of the four trusts for benefit of his children for no consideration. The reporting person remains a beneficial owner of the securities held by the trusts.

F7: Oxbow directly holds the shares reported in Column 5.