Figures computed from official regulatory filings — .
Ownershipinsiders 62.21% · institutions 0%
In USD · as of Oct 5, 2026
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The Coretec Group Inc. engages in the development of silicon anode active materials for lithium-ion batteries and cyclohexasilane for electric vehicles, cleantech, and tech applications. The company was founded in 2002 and is headquartered in Ann Arbor, Michigan.
Market information source · Oct 5, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
12 buys52 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| Watkins Birge | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ussery Elbert Michael | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Lee Jung Min | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Kim Seonkee | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McCollar Robert | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KEEN VICTOR Ftrack record | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| LEE DAVID | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Kim Ho Seok | OtherD (derivative) | n/a (No price was disclosed in the filing) | SEC |
| Kim Ho Seok | Other | n/a (No price was disclosed in the filing) | SEC |
| Kappers Matthew Joseph | Buy | $37.5K | conv 55 | SEC |
| Kappers Matthew Joseph | Buy | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | conv 74First in 12mo | SEC |
| Hoffman Matthew Leo | Buy | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | conv 78First in 12mo | SEC |
| DOMBROWSKI RONALD | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Kappers Matthew Joseph | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KEEN VICTOR Ftrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| CALTON SIMON | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hoffman Matthew Leo | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hoffman Matthew Leo | Award | $7.1K | SEC |
| CALTON SIMON | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KEEN VICTOR Ftrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hoffman Matthew Leo | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Kappers Matthew Joseph | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KEEN VICTOR Ftrack record | Buy | $20K | conv 28 | SEC |
| KEEN VICTOR Ftrack record | Buy | $9K | conv 28 | SEC |
| KEEN VICTOR Ftrack record | Buy | $9K | conv 28 | SEC |