SkyWater Technology, Inc — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| Hilberg Christopher | Chief Risk & Compl. Officer | Tax Withholding | 867 | $18.97 | $16,447 | Dec 8, 2025 |
| Oxbow Industries, LLC | — | Sale | 100,000 | $14.54 | $1,454,000 | Nov 26, 2025 |
| Unterseher Loren A | — | Sale | 100,000 | $14.53 | $1,453,000 | Nov 21, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 100,000 | $14.53 | $1,453,000 | Nov 21, 2025 |
| SONDERMAN THOMAS | CEO | Sale | 5,210 | $13.38 | $69,710 | Nov 21, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 9,662 | $16.26 | $157,104 | Nov 18, 2025 |
| Manko Steve | CFO | Sale | 50,000 | $17.40 | $870,000 | Nov 14, 2025 |
| SONDERMAN THOMAS | CEO | Sale | 5,207 | $17.00 | $88,519 | Nov 14, 2025 |
| Sakamoto John | President and COO | Tax Withholding | 11,028 | $16.59 | $182,955 | Oct 16, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 2,200 | $20.55 | $45,210 | Oct 3, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 120,370 | $18.02 | $2,169,067 | Sep 26, 2025 |
| Manko Steve | CFO | Sale | 60,829 | $17.40 | $1,058,425 | Sep 26, 2025 |
| Manko Steve | CFO | Option Exercise | 17,141 | $14.00 | $239,974 | Sep 22, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 74,900 | $12.81 | $959,469 | Sep 19, 2025 |
| Oxbow Industries, LLC | — | Sale | 120,000 | $14.05 | $1,686,000 | Sep 18, 2025 |
| Unterseher Loren A | — | Sale | 188,976 | $10.47 | $1,978,579 | Sep 12, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 229,029 | $10.44 | $2,391,063 | Sep 10, 2025 |
| SONDERMAN THOMAS | CEO | Sale | 8,355 | $10.58 | $88,396 | Sep 10, 2025 |
| Unterseher Loren A | — | Sale | 60,767 | $12.08 | $734,065 | Aug 29, 2025 |
| Unterseher Loren A | — | Sale | 756,516 | $12.06 | $9,123,583 | Aug 28, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 37,979 | $11.16 | $423,846 | Aug 22, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 97,957 | $11.62 | $1,138,260 | Aug 15, 2025 |
| SONDERMAN THOMAS | CEO | Sale | 24,936 | $12.24 | $305,217 | Aug 13, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 287,454 | $12.38 | $3,558,681 | Aug 12, 2025 |
| Manko Steve | CFO | Option Exercise | 9,707 | $10.14 | $98,429 | Aug 8, 2025 |
| SONDERMAN THOMAS | CEO | Sale | 14,958 | $10.04 | $150,178 | Jun 26, 2025 |
| Unterseher Loren A | — | Sale | 900 | $9.13 | $8,217 | Jun 12, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 17,136 | $9.36 | $160,393 | Jun 10, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 5,919 | $9.50 | $56,231 | Jun 6, 2025 |
| Unterseher Loren A | — | Sale | 86,273 | $9.50 | $819,594 | May 27, 2025 |
| Baxter Timothy E | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| Unterseher Loren A | — | Other | 162,392 | $6.10 | $990,591 | May 21, 2025 |
| Miller Tammy J | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| Goetz Dennis J | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| Humke Joseph J | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| LaFrence Andrew D.C. | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| FARES NANCY | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| Daly Edward | — | Award / Grant | 11,428 | $8.75 | $99,995 | May 21, 2025 |
| SONDERMAN THOMAS | CEO | Tax Withholding | 10,191 | $8.42 | $85,808 | Mar 17, 2025 |
| Manko Steve | CFO | Tax Withholding | 2,251 | $8.42 | $18,953 | Mar 17, 2025 |
| Hilberg Christopher | Chief Risk & Compl. Officer | Tax Withholding | 1,316 | $8.42 | $11,081 | Mar 17, 2025 |
| Unterseher Loren A | — | Sale | 22,090 | $8.22 | $181,580 | Mar 14, 2025 |
| GRAVES GREGORY B | — | Sale | 12,844 | $8.11 | $104,165 | Mar 14, 2025 |
| CMI Oxbow Partners, LLC | — | Sale | 3,800 | $8.51 | $32,338 | Mar 5, 2025 |
| Hilberg Christopher | Chief Risk & Compl. Officer | Tax Withholding | 564 | $8.84 | $4,986 | Feb 25, 2025 |
| Manko Steve | CFO | Tax Withholding | 2,880 | $8.84 | $25,459 | Feb 25, 2025 |
| SONDERMAN THOMAS | CEO | Tax Withholding | 5,076 | $8.84 | $44,872 | Feb 25, 2025 |
| Sakamoto John | President and COO | Award / Grant | 40,877 | — | — | Feb 15, 2025 |
| Manko Steve | CFO | Tax Withholding | 3,899 | $10.03 | $39,107 | Feb 15, 2025 |
| Hilberg Christopher | Chief Risk & Compl. Officer | Award / Grant | 16,360 | — | — | Feb 15, 2025 |