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Who

Thomas Sonderman

CEO

Company insider

Files Form 4 as: CEO, SkyWater Technology; Other, Rudolph Technologies.

Every Form 4 they filed

In numbers

Trades disclosed
79
Buys
1
Sells
19
Bought
$23K
Sold
$2.0M
Companies
2
Companies where not an officer
1
First trade
8 Jul 2014
Last trade
31 Jul 2026
Last filed
31 Jul 2026

Companies traded

Where they are an officer
SkyWater TechnologyDirector, Officer · Semiconductors · last 31 Jul 20260 buys · 17 sells
Everywhere else they filed: board seats, 10% stakes, other companies
Rudolph TechnologiesOther · last 8 Jul 20171 buy · 2 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
31 Jul 2026filed 31 Jul 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code D—448,196filing
31 Jul 2026filed 31 Jul 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code D—105,048filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—285,326filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—285,326filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—93,109filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—87,238filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—79,266filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—74,454filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—722filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—93,109filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—87,238filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—79,266filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—74,454filing
31 Jul 2026filed 31 Jul 2026SkyWater Technologyoption or derivative · SemiconductorsSEC FORM 4 Code D—722filing
31 Jul 2026filed 31 Jul 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code D—448,196filing
31 Jul 2026filed 31 Jul 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code D—105,048filing
16 Mar 2026filed 18 Mar 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code F$368K13,201 at $27.86filing
16 Mar 2026filed 18 Mar 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code F$368K13,201 at $27.86filing
15 Mar 2026filed 17 Mar 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code A—50,455 at $0.00filing
15 Mar 2026filed 17 Mar 2026SkyWater TechnologySemiconductorsSEC FORM 4 Code A—50,455 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Technology17
Not placed3

Buys in green, sells in red, by the company’s sector.

Related people

Tammy J. MillerDirector · Director at SkyWater Technology, filing Form 4 there in the last year
Loren A. UnterseherDirector and 10% owner · Director and 10% owner at SkyWater Technology, filing Form 4 there in the last year
Andrew D.C. LaFrenceDirector · Director at SkyWater Technology, filing Form 4 there in the last year
Steve MankoCFO · CFO at SkyWater Technology, filing Form 4 there in the last year
Dennis J. GoetzDirector · Director at SkyWater Technology, filing Form 4 there in the last year