SkyWater Technology, Inc — Director's Dealing 2025

Nov 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SkyWater Technology, Inc (SKYT)
CIK: 0001819974
Period of Report: 2025-10-01

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
2025-10-03	Common Stock	G	2480746	—	Disposed	0	Indirect
2025-10-03	Common Stock	G	457232	—	Acquired	687812	Indirect
2025-10-03	Common Stock	G	457232	—	Acquired	687812	Indirect
2025-10-03	Common Stock	G	457232	—	Acquired	687811	Indirect
2025-10-03	Common Stock	G	457232	—	Acquired	687811	Indirect
2025-10-03	Common Stock	G	651818	—	Acquired	651818	Indirect
2025-11-13	Common Stock	S	2200	$20.5472	Disposed	4809056	Direct
2025-11-17	Common Stock	S	12000	$17.451	Disposed	4797056	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3	Direct
Common Stock	23713	Direct
Common Stock	531283	Indirect
Common Stock	1229864	Indirect
Common Stock	2	Indirect

Footnotes

F1: Reflects the weighted average price of 2,200 shares of common stock of SkyWater Technology, Inc. sold in multiple transactions on November 13, 2025 with sale prices ranging from $20.50 to $20.77 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.

F2: Since the date of the reporting person's last ownership report, 2,000,000 shares of common stock were transferred to his former spouse pursuant to a domestic relations order. The reporting person no longer reports as beneficially owned any securities owned by his former spouse.

F3: 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.

F4: Reflects the weighted average price of 12,000 shares of common stock of SkyWater Technology, Inc. sold in multiple transactions on November 17, 2025 with sale prices ranging from $17.25 to $17.505 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: Oxbow directly holds the shares reported in Column 5.

F6: Shares owned directly by Mr. Unterseher.