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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, 202610
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
May 13, 2026 (view filing)May 112 daysManko SteveCFOSSale−75.0K$35.08−$2.63M−43.7%96.6K after10b5-1
Apr 16, 2026 (view filing)Apr 142 daysManko SteveCFOSSale−84.2K$30.41−$2.56M−32.9%171.6K after10b5-1
Mar 23, 2026 (view filing)Mar 167 daysManko SteveCFOSSale−71.7K$27.84−$2.00M−24.2%224.9K afterAmended10b5-1
Mar 18, 2026 (view filing)Mar 162 daysManko SteveCFOSSale−91.1K$27.84−$2.54M−29.7%215.2K after2 lots10b5-1
Dec 1, 2025 (view filing)6:28 PM ETNov 265 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−100.0K$14.54−$1.45M−2.2%4.49M after
Dec 1, 2025 (view filing)6:27 PM ETNov 21-2410 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−200.0K$14.33−$2.87M−4.2%4.59M afterAmended2 lots
Nov 25, 2025 (view filing)Nov 214 daysSonderman ThomasCEOSSale−5.21K$13.38−$69.7K−1.0%521.8K after
Nov 20, 2025 (view filing)4:14 PM ETNov 182 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−9.66K$16.26−$157.1K−0.2%4.79M after
Nov 18, 2025 (view filing)Nov 144 daysManko SteveCFOSSale−50.0K$17.40−$870.0K−15.3%277.1K after
Nov 18, 2025 (view filing)Nov 144 daysSonderman ThomasCEOSSale−5.21K$17.00−$88.5K−1.0%527.0K after
Nov 17, 2025 (view filing)7:37 PM ETNov 13-174 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−14.2K$17.93−$254.6K−0.3%4.80M after2 lots
Sep 30, 2025 (view filing)8:30 PM ETSep 264 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−120.4K$18.02−$2.17M−1.7%6.81M after10b5-1
Sep 30, 2025 (view filing)Sep 264 daysManko SteveCFOSSale−60.8K$17.40−$1.06M−15.7%327.1K after10b5-1
Sep 24, 2025 (view filing)12:01 PM ETSep 18-196 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−240.0K$13.58−$3.26M−3.3%6.93M afterAmended3 lots10b5-1
Sep 24, 2025 (view filing)Sep 222 daysManko SteveCFOSSale−43.4K$15.13−$656.4K−10.5%368.4K after10b5-1
Sep 16, 2025 (view filing)8:24 PM ETSep 124 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−189.0K$10.47−$1.98M−2.6%7.17M after
Sep 11, 2025 (view filing)6:45 PM ETSep 9-112 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−239.6K$10.45−$2.50M−3.2%7.36M after3 lots10b5-1
Sep 11, 2025 (view filing)Sep 101 daySonderman ThomasCEOSSale−8.36K$10.58−$88.4K−1.5%532.2K after
Sep 3, 2025 (view filing)4:35 PM ETAug 295 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−60.8K$12.08−$734.1K−0.8%7.60M after
Aug 28, 2025 (view filing)5:01 PM ETAug 26-282 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−1.26M$12.13−$15.2M−14.1%7.66M after3 lots
Aug 25, 2025 (view filing)4:51 PM ETAug 21-254 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−574.1K$11.61−$6.67M−6.0%8.92M after3 lots
Aug 18, 2025 (view filing)6:09 PM ETAug 14-184 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−321.0K$11.74−$3.77M−3.3%9.49M after3 lots
Aug 14, 2025 (view filing)4:24 PM ETAug 12-132 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−633.2K$12.63−$8.00M−6.1%9.81M after2 lots
Aug 14, 2025 (view filing)Aug 131 daySonderman ThomasCEOSSale−24.9K$12.24−$305.2K−4.4%540.5K after
Aug 12, 2025 (view filing)Aug 84 daysManko SteveCFOSSale−37.8K$13.62−$515.4K−9.3%368.4K after10b5-1
Jun 27, 2025 (view filing)Jun 261 daySonderman ThomasCEOSSale−15.0K$10.04−$150.2K−2.6%565.5K after10b5-1
Jun 16, 2025 (view filing)5:06 PM ETJun 124 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−900$9.13−$8.21K0.0%10.4M after
Jun 11, 2025 (view filing)7:42 PM ETJun 9-112 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−118.1K$9.41−$1.11M−1.1%10.4M after3 lots
Jun 6, 2025 (view filing)5:41 PM ETJun 4-62 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−9.06K$9.45−$85.6K−0.1%10.6M after2 lots
May 29, 2025 (view filing)5:45 PM ETMay 27-292 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−452.9K$9.53−$4.32M−4.1%10.6M after3 lots
May 23, 2025 (view filing)4:05 PM ETMay 221 dayUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−134.0K$9.41−$1.26M−1.2%11.0M after
Mar 18, 2025 (view filing)6:06 PM ETMar 144 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−1.43M$8.20−$11.8M−99.2%12.3K after2 lots
Mar 17, 2025 (view filing)Mar 143 daysGraves Gregory BDirectorSSale−12.8K$8.11−$104.2K−47.3%14.3K after
Mar 7, 2025 (view filing)4:06 PM ETMar 5-62 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−90.5K$8.51−$769.8K−0.7%12.6M after2 lots
Dec 17, 2024 (view filing)6:05 PM ETDec 134 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−7.76K$9.27−$71.9K−0.1%12.8M after
Dec 10, 2024 (view filing)4:35 PM ETDec 6-104 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−205.6K$9.35−$1.92M−1.6%12.8M after3 lots
Dec 2, 2024 (view filing)Nov 275 daysSakamoto JohnPresident and COOSSale−13.3K$8.11−$107.6K−11.2%105.3K after
Aug 27, 2024 (view filing)7:06 PM ETAug 234 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−2.67K$10.00−$26.7K0.0%13.0M after
Jun 18, 2024 (view filing)Jun 144 daysFares NancyDirectorSSale−8.85K$7.97−$70.5K−21.6%32.1K after
May 23, 2024 (view filing)May 212 daysGraves Gregory BDirectorSSale−5.43K$8.10−$44.0K−26.8%14.8K after
Mar 7, 2024 (view filing)9:14 PM ETMar 5-72 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−430.0K$12.05−$5.18M−3.2%13.0M after4 lots
Mar 4, 2024 (view filing)6:19 PM ETFeb 29-Mar 44 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−445.0K$11.77−$5.24M−3.2%13.5M after3 lots
Feb 12, 2024 (view filing)Feb 93 daysSonderman ThomasCEOSSale−19.0K$10.01−$190.1K−3.7%498.4K after10b5-1
Jan 26, 2024 (view filing)Jan 24-252 daysSonderman ThomasCEOSSale−19.3K$10.01−$193.3K−3.6%517.4K after2 lots10b5-1
Dec 29, 2023 (view filing)Dec 281 daySonderman ThomasCEOSSale−1.70K$10.01−$17.0K−0.3%536.7K after10b5-1
Dec 12, 2023 (view filing)4:52 PM ETDec 84 daysUnterseher Loren A and 2 othersDirector, 10% OwnerSSale−500.0K$8.00−$4.00M−3.3%14.4M after
Dec 12, 2023 (view filing)Dec 8-114 daysHilberg ChristopherChief Legal OfficerSSale−1.08K$8.10−$8.78K−3.9%26.4K after2 lots
Aug 18, 2023 (view filing)Aug 16-172 daysManko SteveCFOSSale−84.9K$7.00−$594.4K−20.6%328.3K after2 lots
Aug 15, 2023 (view filing)Aug 11-144 daysDaniel AmandaChief People OfficerSSale−2.07K$7.08−$14.7K−4.5%43.7K after2 lots
Aug 15, 2023 (view filing)Aug 11-144 daysKosier SteveChief Technology OfficerSSale−3.22K$7.08−$22.8K−4.8%63.5K after2 lots