Company · CIK 0001819974 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

SkyWater Technology, LLC · SKYT

Insider activity reported against this company. All insider holders · On EDGAR ↗

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Reported at this company — common stock

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Jul 31, 2026 DForm 4 →	Jul 31, 10:52 am EDT	Steve MankoCFO	96,567	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:51 am EDT	Thomas SondermanCEO, Director	553,244	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:51 am EDT	Christopher HilbergChief Risk & Compl. Officer	64,391	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:50 am EDT	John SakamotoPresident and COO	141,395	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:43 am EDT	Dennis J GoetzDirector	28,017	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:42 am EDT	Nancy FaresDirector	47,805	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:42 am EDT	Timothy E BaxterDirector	17,166	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:41 am EDT	Tammy J MillerDirector	15,732	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:40 am EDT	Andrew D.C. LaFrenceDirector	15,732	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:39 am EDT	Joseph J HumkeDirector	28,017	—	—	0	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:38 am EDT	Edward DalyDirector	39,183	—	—	0	—
Jul 28, 2026 DGForm 4 →	Jul 31, 10:16 am EDT	Loren A Unterseher +2Director, 10% Owner	10,000,269	—	—	0	—	late
Jun 10, 2026 AForm 4 →	Jun 12, 8:40 pm EDT	Loren A Unterseher +2Director, 10% Owner	4,304	—	—	28,017	—
Jun 10, 2026 AForm 4 →	Jun 12, 6:34 pm EDT	Joseph J HumkeDirector	4,304	—	—	28,017	—
Jun 10, 2026 AForm 4 →	Jun 12, 5:12 pm EDT	Tammy J MillerDirector	4,304	—	—	15,732	—
Jun 10, 2026 AForm 4 →	Jun 12, 5:09 pm EDT	Andrew D.C. LaFrenceDirector	4,304	—	—	15,732	—
Jun 10, 2026 AForm 4 →	Jun 12, 5:08 pm EDT	Timothy E BaxterDirector	5,738	—	—	17,166	—
Jun 10, 2026 AForm 4 →	Jun 12, 5:00 pm EDT	Nancy FaresDirector	4,304	—	—	47,805	—
Jun 10, 2026 AForm 4 →	Jun 12, 4:57 pm EDT	Dennis J GoetzDirector	4,304	—	—	28,017	—
Jun 10, 2026 AForm 4 →	Jun 12, 4:54 pm EDT	Edward DalyDirector	4,304	—	—	39,183	—

Reported at this company — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Δ stake
Jul 31, 2026 DForm 4 →	Jul 31, 10:52 am EDT	Steve MankoCFO	57,758	—	—	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:51 am EDT	Thomas SondermanCEO, Director	620,115	—	—	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:51 am EDT	Christopher HilbergChief Risk & Compl. Officer	85,488	—	—	—
Jul 31, 2026 DForm 4 →	Jul 31, 10:50 am EDT	John SakamotoPresident and COO	349,202	—	—	—