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SkyWater Technology, LLC

SKYTDelisted Jul 31, 2026
Industry
Semiconductors & Related Devices
SEC CIK
0001819974

SkyWater Technology, LLC was delisted on Jul 31, 2026; its insiders filed their last Form 4 on Jul 31, 2026; 191 institutions reported holding it in 13F filings for Q2 2026, worth $1.16B in total; Maverick Capital was the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by SkyWater Technology, LLC insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for SkyWater Technology, LLC, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for SkyWater Technology, LLC
NameTitleLast reported holdingLast filingFilings, past year
Manko SteveCFO0Jul 31, 20269
Sonderman ThomasCEO0Jul 31, 20266
Hilberg ChristopherChief Risk & Compl. Officer0Jul 31, 20266
Sakamoto JohnPresident and COO0Jul 31, 20264
Goetz Dennis JDirector0Jul 31, 20262
Fares NancyDirector0Jul 31, 20262
Baxter Timothy EDirector0Jul 31, 20262
Miller Tammy JDirector0Jul 31, 20262
LaFrence Andrew D.C.Director0Jul 31, 20262
Humke Joseph JDirector0Jul 31, 20262
Daly EdwardDirector0Jul 31, 20262
Unterseher Loren ADirector, 10% Owner0IndirectJul 31, 20267
CMI Oxbow Partners, LLCDirector, 10% Owner0IndirectJul 31, 20267
Oxbow Industries, LLCDirector, 10% Owner0IndirectJul 31, 20267
Graves Gregory BDirector14,285Mar 17, 20250
Obermiller Gary JDirector22,345May 24, 20240
Leong Chunyi (Amy)Director40,923May 24, 20240
Lujan Thomas R.Director462,258Jan 23, 20240
Litecky MarkChief Revenue Officer347,411Aug 15, 20230
Daniel AmandaChief People Officer43,699Aug 15, 20230
Kosier SteveChief Technology Officer63,504Aug 15, 20230
Ferguson BradleyChief Govt Affairs Officer443,805Aug 15, 20230
Zibrowski Bart L10% Owner4,483,396IndirectAug 3, 20230
DDK Developments, L.L.C.10% Owner4,483,396Aug 3, 20230
Kurtzweil John TDirector28,097Jun 14, 20230
Spicer JohnEVP Operations68,036Mar 17, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Dec 10, 2021 (view filing)Dec 82 daysManko SteveCFOSSale−73.3K$18.09−$1.33M−13.2%481.0K after
Dec 16, 2021 (view filing)8:14 PM ETDec 14-162 daysCMI Oxbow Partners, LLC and 1 otherDirector, 10% OwnerSSale−334.4K$15.37−$5.14M−1.2%27.7M after3 lots
Dec 21, 2021 (view filing)5:30 PM ETDec 174 daysCMI Oxbow Partners, LLC and 1 otherDirector, 10% OwnerSSale−101.6K$15.03−$1.53M−0.4%27.6M after
Mar 10, 2022 (view filing)Mar 82 daysManko SteveCFOSSale−25.2K$10.25−$258.3K−5.0%476.8K after
May 11, 2022 (view filing)May 92 daysSonderman ThomasPresident & CEOSSale−9.19K$5.74−$52.8K−1.7%538.5K after
May 11, 2022 (view filing)May 92 daysManko SteveCFOSSale−1.81K$5.74−$10.4K−0.4%475.0K after
Jun 21, 2022 (view filing)Jun 912 daysLateDaniel AmandaChief Human Resources OfficerSSale−657$7.85−$5.16K−1.7%36.9K after
Sep 13, 2022 (view filing)Sep 94 daysManko SteveCFOSSale−67.6K$11.52−$778.7K−14.2%409.6K after
Sep 13, 2022 (view filing)Sep 94 daysLitecky MarkChief Revenue OfficerSSale−67.6K$11.53−$779.9K−13.0%454.1K after
Sep 13, 2022 (view filing)Sep 94 daysDaniel AmandaChief Human Resources OfficerSSale−1.80K$11.62−$21.0K−4.9%35.1K after
Sep 13, 2022 (view filing)Sep 94 daysKosier SteveChief Technology OfficerSSale−2.81K$11.62−$32.6K−5.5%48.2K after
Sep 13, 2022 (view filing)Sep 94 daysFerguson BradleyChief Govt Affairs OfficerSSale−76.8K$11.52−$884.6K−14.0%471.0K after
Sep 13, 2022 (view filing)Sep 94 daysSpicer JohnEVP OperationsSSale−1.97K$11.62−$22.9K−3.7%51.2K after
Sep 14, 2022 (view filing)Sep 122 daysSonderman ThomasPresident & CEOSSale−15.0K$11.08−$166.2K−2.8%525.8K after
Sep 14, 2022 (view filing)Sep 12-132 daysUnterseher Loren ADirector, 10% OwnerSSale−126.3K$11.61−$1.47M−0.6%22.1M after3 lots
Sep 14, 2022 (view filing)Sep 122 daysManko SteveCFOSSale−3.15K$11.10−$35.0K−0.8%406.5K after
Sep 14, 2022 (view filing)Sep 122 daysLitecky MarkChief Revenue OfficerSSale−3.14K$11.10−$34.9K−0.7%451.0K after
Sep 14, 2022 (view filing)Sep 122 daysDaniel AmandaChief Human Resources OfficerSSale−67$11.35−$760.45−0.2%35.0K after
Sep 14, 2022 (view filing)Sep 122 daysKosier SteveChief Technology OfficerSSale−104$11.35−$1.18K−0.2%48.1K after
Sep 14, 2022 (view filing)Sep 122 daysFerguson BradleyChief Govt Affairs OfficerSSale−3.58K$11.09−$39.7K−0.8%467.4K after
Sep 14, 2022 (view filing)Sep 122 daysSpicer JohnEVP OperationsSSale−73$11.35−$828.55−0.1%51.2K after
Sep 14, 2022 (view filing)5:31 PM ETSep 12-132 daysCMI Oxbow Partners, LLC and 1 otherDirector, 10% OwnerSSale−126.3K$11.61−$1.47M−0.6%22.1M after3 lots
Sep 19, 2022 (view filing)Sep 15-164 daysUnterseher Loren ADirector, 10% OwnerSSale−173.7K$8.82−$1.53M−0.8%22.0M after2 lots
Sep 19, 2022 (view filing)4:26 PM ETSep 15-164 daysCMI Oxbow Partners, LLC and 1 otherDirector, 10% OwnerSSale−173.7K$8.82−$1.53M−0.8%22.0M after2 lots
Nov 10, 2022 (view filing)Nov 82 daysZibrowski Bart L10% OwnerSSale−100.0K$10.04−$1.00M−1.9%5.20M after
Nov 10, 2022 (view filing)Nov 82 daysDDK Developments, L.L.C.10% OwnerSSale−100.0K$10.04−$1.00M−1.9%5.20M afterDuplicate filing
Nov 14, 2022 (view filing)Nov 104 daysManko SteveCFOSSale−11.0K$12.03−$132.3K−2.7%395.5K after
Nov 14, 2022 (view filing)Nov 104 daysLitecky MarkChief Revenue OfficerSSale−18.0K$12.00−$216.0K−4.0%433.0K after
Nov 17, 2022 (view filing)Nov 152 daysZibrowski Bart L10% OwnerSSale−26.1K$10.08−$263.2K−0.5%5.17M after
Nov 17, 2022 (view filing)Nov 152 daysDDK Developments, L.L.C.10% OwnerSSale−26.1K$10.08−$263.2K−0.5%5.17M afterDuplicate filing
Dec 9, 2022 (view filing)8:02 PM ETDec 7-92 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−82.0K$9.29−$761.6K−0.4%21.8M after3 lots
Dec 14, 2022 (view filing)6:19 PM ETDec 12-142 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−218.6K$9.25−$2.02M−1.0%21.6M after3 lots
Dec 15, 2022 (view filing)Dec 132 daysZibrowski Bart L10% OwnerSSale−15.9K$9.51−$151.5K−0.3%5.16M after
Dec 15, 2022 (view filing)Dec 132 daysDDK Developments, L.L.C.10% OwnerSSale−15.9K$9.51−$151.5K−0.3%5.16M afterDuplicate filing
Dec 19, 2022 (view filing)Dec 154 daysSonderman ThomasPresident & CEOSSale−4.05K$8.40−$34.0K−0.8%534.7K after
Dec 19, 2022 (view filing)Dec 19Same dayFerguson BradleyChief Govt Affairs OfficerSSale−40.2K$7.84−$315.1K−7.4%506.5K after
Jan 20, 2023 (view filing)Jan 20Same dayZibrowski Bart L10% OwnerSSale−13.8K$9.50−$131.2K−0.3%5.14M after4 lots
Jan 20, 2023 (view filing)Jan 20Same dayDDK Developments, L.L.C.10% OwnerSSale−13.8K$9.50−$131.2K−0.3%5.14M after4 lotsDuplicate filing
Jan 26, 2023 (view filing)Jan 26Same dayZibrowski Bart L10% OwnerSSale−11.2K$9.50−$106.3K−0.2%5.13M after
Jan 26, 2023 (view filing)Jan 26Same dayDDK Developments, L.L.C.10% OwnerSSale−11.2K$9.50−$106.3K−0.2%5.13M afterDuplicate filing
Feb 14, 2023 (view filing)Feb 14Same dayZibrowski Bart L10% OwnerSSale−10.0K$12.00−$120.0K−0.2%5.12M after
Feb 14, 2023 (view filing)Feb 14Same dayDDK Developments, L.L.C.10% OwnerSSale−10.0K$12.00−$120.0K−0.2%5.12M afterDuplicate filing
Feb 16, 2023 (view filing)Feb 142 daysZibrowski Bart L10% OwnerSSale−98.7K$13.40−$1.32M−1.9%5.02M after
Feb 16, 2023 (view filing)Feb 133 daysLateZibrowski Bart L10% OwnerSSale−1.25K$12.00−$15.0K0.0%5.02M after
Feb 16, 2023 (view filing)Feb 142 daysDDK Developments, L.L.C.10% OwnerSSale−98.7K$13.40−$1.32M−1.9%5.02M afterDuplicate filing
Feb 16, 2023 (view filing)Feb 133 daysLateDDK Developments, L.L.C.10% OwnerSSale−1.25K$12.00−$15.0K0.0%5.02M afterDuplicate filing
Feb 17, 2023 (view filing)Feb 161 daySonderman ThomasPresident & CEOSSale−10.0K$15.07−$150.7K−1.9%524.7K after2 lots
Feb 21, 2023 (view filing)Feb 165 daysLitecky MarkChief Revenue OfficerSSale−10.0K$14.79−$147.9K−2.3%423.0K after2 lots
Feb 21, 2023 (view filing)5:00 PM ETFeb 165 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−616.2K$14.30−$8.81M−2.8%21.0M after2 lots
Feb 22, 2023 (view filing)Feb 211 dayZibrowski Bart L10% OwnerSSale−50.0K$13.03−$651.5K−1.0%4.97M after