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Private company

CORETEC GROUP INC.

CORETEC GROUP INC. is an American communications equipment company based in Oklahoma City.2

Last updated Oct 21, 2026.

Overview

  • IndustryCommunications Equipment, NEC2
  • HeadquartersOklahoma City, United States2
  • Incorporated inOK3
  • Business address333 Jackson Plaza, Suite 1200, Ann Arbor, Mi 481033
  • Filer categoryNon-accelerated filer, Smaller reporting company3
  • Legal formProfit Corporation2
  • LEI984500090DA5EDBC2E512
  • StatusActive2
  • LEI statusIssued and current2
  • Registered address421 NW 13th St, Suite 210, 73103 Oklahoma City, United States2
  • Registered withBusiness Filing Department (Oklahoma Secretary of State), 19005556172

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On June 22, 2017, the Group filed an Amended Certificate of Incorporation with the Secretary of State of the State of Oklahoma to change its name from “3DIcon Corporation” to “The Coretec Group Inc.”, which became effective on June 29, 2017.4 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2023

-2095.1%Return on equity5
9.11×Debt to equity5
-$1.9MFree cash flow5

Financial statements

Revenue675$0 in 2023
02020: $0$020202021: $0$020212022: $0$020222023: $0$02023
Net income8910675-$2.3M in 2023+35% since 2017
-$8.0M-$6.0M-$4.0M-$2.0M02017: -$1.7M-$1.7M20172018: -$1.0M-$1.0M2018−39%2019: -$1.9M-$1.9M2019+77%2020: -$1.8M-$1.8M2020−1%2021: -$6.3M-$6.3M2021+240%2022: -$2.9M-$2.9M2022−54%2023: -$2.3M-$2.3M2023−19%
Fiscal year2017201820192020202120222023
Revenue$06$07$05$05
Research and development$456.4K8$85.1K9$148.9K10$151.9K6$470.0K7$535.8K5$513.0K5
Operating expenses$6.3M7$2.9M5$2.5M5
Interest$320.1K8$394.9K9$287.3K10$665.2K6$229.5K7$202.8K5$217.6K5
Income tax$08
Net income-$1.7M8-$1.0M9-$1.9M10-$1.8M6-$6.3M7-$2.9M5-$2.3M5
Earnings per share-$0.037-$0.015-$0.015
Shares (weighted, basic)244.0M shares7258.3M shares5277.7M shares5

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Corporate structure

CORETEC GROUP INC. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of CORETEC GROUP INC.

  • CORETEC GROUP INC. Oklahoma City, Oklahoma, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What CORETEC GROUP INC. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Accumulated depreciation$17.4K5 Dec 31, 2023$6.8K5 Dec 31, 2022+156.1%
Property and equipment, net$109.8K5 Dec 31, 2023$73.5K5 Dec 31, 2022+49.4%

Intangibles and goodwill

ItemLatestA year beforeChange
Goodwill$166.0K5 Dec 31, 2023$166.0K5 Dec 31, 20220%
Accumulated amortization$587.7K5 Dec 31, 2023$505.0K5 Dec 31, 2022+16.4%
Finite-lived intangibles, net$824.3K5 Dec 31, 2023$907.0K5 Dec 31, 2022−9.1%

Leadership

Who has led CORETEC GROUP INC., and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Mark G. Willner2012
  2. Victor F. Keen2013–2016
  3. Doug Freitag2016
  4. Michael Anthony Kraft2017–2021
  5. Matthew Joseph Kappers2021–2024
  6. Elbert Michael Ussery2024

Chair

  1. Victor F. Keen2017–2021
  2. Elbert Michael Ussery2024

Chief financial officer

  1. Chris Dunstan2012
  2. Ronald Wayne Robinson2013–2019
  3. Matthew Leo Hoffman2020–2024
  4. Ho Seok Kim2024
  5. Antti William Uusiheimala2024

Chief operating officer

  1. Matthew Leo Hoffman2022–2024
  2. Jung Min Lee2024
201520202025
Board members and other officers (11)

Former names

  • 3DICON CORPSep 7, 2006 to Jun 29, 20173

Timeline

  1. Apr 14, 20268-K Executive or director change35
  2. Jun 2, 20258-K Executive or director change; Other events36
  3. Jan 14, 20258-K Entered a material agreement; Unregistered sale of shares37
  4. Dec 26, 20248-K Entered a material agreement; Unregistered sale of shares38
  5. Dec 5, 20248-K Entered a material agreement; Unregistered sale of shares; Regulation FD disclosure39
  6. Nov 21, 2024New chief executive Elbert Michael Ussery becomes CEO13
  7. Nov 20, 20248-K Executive or director change40
  8. Nov 14, 20248-K Entered a material agreement; Unregistered sale of shares; Executive or director change41
  9. Aug 22, 20248-K Entered a material agreement; Completed an acquisition or sale; Unregistered sale of shares42
  10. Aug 5, 20248-K Entered a material agreement43
  11. Jun 28, 20248-K Entered a material agreement; Regulation FD disclosure44
  12. Jun 18, 20248-K Entered a material agreement; New debt or obligation; Unregistered sale of shares45
  13. Jun 6, 20248-K Executive or director change46
  14. Jun 21, 2021New chief executive Matthew Joseph Kappers becomes CEO14
  15. Mar 27, 2017New chief executive Michael Anthony Kraft becomes CEO15
  16. Oct 27, 2016New chief executive Doug Freitag becomes CEO16
  17. Dec 13, 2013New chief executive Victor F. Keen becomes CEO17
  18. Jul 25, 2012New chief executive Mark G. Willner becomes CEO18
  19. Aug 11, 1995Founded CORETEC GROUP INC. is founded2

Filings

92 filings to the SEC since October 2021: 3 annual reports, 9 quarterly reports, 23 major events, 50 insider forms, 4 large holders, 3 other. The latest 20:

  1. Sep 17, 202615-12G EDGAR
  2. Apr 14, 20268-K EDGAR
  3. Jun 2, 20258-K EDGAR
  4. Jan 14, 20258-K EDGAR
  5. Dec 26, 20248-K EDGAR
  6. Dec 5, 20248-K EDGAR
  7. Nov 27, 20243 EDGAR
  8. Nov 26, 20244 EDGAR
  9. Nov 26, 20243 EDGAR
  10. Nov 21, 20244 EDGAR
  11. Nov 21, 20243 EDGAR
  12. Nov 21, 20244 EDGAR
  13. Nov 21, 20244 EDGAR
  14. Nov 21, 20244 EDGAR
  15. Nov 21, 20244 EDGAR
  16. Nov 21, 20244 EDGAR
  17. Nov 21, 20243 EDGAR
  18. Nov 21, 20243 EDGAR
  19. Nov 20, 20248-K EDGAR
  20. Nov 14, 20248-K EDGAR

The 92 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

31 open-market trades by officers, directors and large owners since October 2021: 9 buys and 22 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Aug 21, 2024Kappers Matthew JosephChief Executive OfficerBuy3,750,000$0.01$37.5KForm 4
Jun 6, 2024Hoffman Matthew LeoCFO and COOBuy6,208,242Form 4
Jun 6, 2024Kappers Matthew JosephChief Executive OfficerBuy8,647,194Form 4
Aug 15, 2022KEEN VICTOR FDirectorBuy500,000$0.04$20.0KForm 4
Aug 10, 2022KEEN VICTOR FDirectorBuy300,000$0.03$9.0KForm 4
Aug 8, 2022KEEN VICTOR FDirectorBuy300,000$0.03$9.0KForm 4
Aug 4, 2022KEEN VICTOR FDirectorBuy200,000$0.03$6.0KForm 4
Aug 3, 2022KEEN VICTOR FDirectorBuy120,000$0.29$34.8KForm 4
Aug 2, 2022KEEN VICTOR FDirectorBuy100,000$0.03$3.0KForm 4
Feb 14, 2022KEEN VICTOR FDirectorSale36,690$0.05$1.8KForm 4
Feb 14, 2022CALTON SIMONDirectorSale102,390$0.05$5.1KForm 4
Feb 10, 2022KEEN VICTOR FDirectorSale36,690$0.04$1.5KForm 4
Feb 10, 2022CALTON SIMONDirectorSale102,390$0.04$4.1KForm 4
Feb 4, 2022CALTON SIMONDirectorSale102,390$0.05$5.1KForm 4
Feb 4, 2022KEEN VICTOR FDirectorSale36,690$0.05$1.8KForm 4
Feb 3, 2022CALTON SIMONDirectorSale102,390$0.05$5.1KForm 4
Feb 3, 2022KEEN VICTOR FDirectorSale36,690$0.05$1.8KForm 4
Feb 2, 2022CALTON SIMONDirectorSale102,390$0.05$5.1KForm 4
Feb 2, 2022KEEN VICTOR FDirectorSale36,690$0.05$1.8KForm 4
Nov 10, 2021CALTON SIMONDirectorSale99,825$0.07$7.0KForm 4

All 31 trades can be filtered by person here when JavaScript is on.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

SEC filer profile

How CORETEC GROUP INC. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARCORETEC GROUP INC.1
  • CIK0001375195
  • Filer statusNon-accelerated filer<br>smaller reporting company1
  • Incorporated inOklahoma1
  • Fiscal year endsDecember 311
  • Industry code (SIC)3669 Communications Equipment, NEC1
  • SEC reviewing officeOffice of Manufacturing, Division of Corporation Finance1
  • Business address333 Jackson Plaza, Suite 1200, Ann Arbor, MI 481031
  • Phone918-494-05091
  • Shares outstanding336,738,361 as of Aug 14, 202412
  • Public float$1.6M as of Jun 30, 20235
  • On EDGAR sinceSep 7, 20061
  • Filings380 in all: 8-K (106), 4 (76), 10-Q (50), 3 (24), 10-K (16), S-8 (13), SC 13G (9), SC 13D (8)1
    All 37 form types

    SC 13G/A (7), CORRESP (6), S-1/A (6), UPLOAD (6), NT 10-K (5), 424B3 (4), EFFECT (4), NT 10-Q (4), SC 13D/A (4), D (3), SB-2 (3), SB-2/A (3), 10QSB (2), 8-K/A (2), DEF 14A (2), PRE 14A (2), REGDEX (2), S-1 (2), 10KSB (1), 15-12G (1), 5 (1), 8-A12G (1), CT ORDER (1), DEF 14C (1), DEFA14A (1), PRE 14C (1), RW (1), SC 14F1 (1), SC 14F1/A (1)

  • Latest filingsAnnual report (10-K) Mar 21, 2024
    Quarterly report (10-Q) Aug 14, 2024
    Proxy statement (DEF 14A) Sep 20, 2011
    Latest 8-K (8-K) Apr 14, 2026

Sources

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