Co-Diagnostics, Inc. (CODX) shareholders
CODXNasdaqSurgical & Medical Instruments & ApparatusFiscal year ends December 31
$0.28−0.01 (-3.78%)
Close on Nov 11, 2026Market cap $1.74MP/E –Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
9.5%
1M of 6M shares
Institutional holders
24
12 new, 2 sold out
Net institutional buying
1M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Armistice Capital, LLC Joint filing with Steven Boyd (9.99%) | 559,706 | 9.99% | 13G (passive) | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of CODX | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Armistice Capital, LLC | 236,000 | 3.77% | $731.60K | New | 0.01% |
| Jane Street Group, LLC | 89,240 | 1.43% | $276.64K | New | 0.00% |
| Vanguard Capital Management LLC | 58,275 | 0.93% | $180.65K | New | 0.00% |
| Private Advisory Group LLC | 39,387 | 0.63% | $122.10K | −2,000 | 0.01% |
| Millennium Management LLC | 31,995 | 0.51% | $99.18K | New | 0.00% |
| Susquehanna International Group, Llp | 31,239 | 0.50% | $96.84K | New | 0.00% |
| Geode Capital Management, LLC | 25,575 | 0.41% | $79.28K | New | 0.00% |
| Vanguard Fiduciary Trust Co | 19,776 | 0.32% | $61.31K | +19,775 | 0.00% |
| Virtu Financial LLC | 17,612 | 0.28% | $55.00K | New | 0.00% |
| UBS Group AG | 16,091 | 0.26% | $49.88K | +8,723 | 0.00% |
| State Street Corp | 14,800 | 0.24% | $45.88K | New | 0.00% |
| Renaissance Technologies LLC | 12,500 | 0.20% | $38.75K | New | 0.00% |
| Morgan Stanley | 2,877 | 0.05% | $8.92K | +2,789 | 0.00% |
| Smartleaf Asset Management LLC | 133 | 0.00% | $396 | – | 0.00% |
| Global Retirement Partners, LLC | 100 | 0.00% | $310 | New | 0.00% |
| SBI Securities Co., Ltd. | 81 | 0.00% | $251 | +23 | 0.00% |
| Wells Fargo & Company/Mn | 81 | 0.00% | $251 | – | 0.00% |
| Heritage Wealth Advisors | 17 | 0.00% | $53 | – | 0.00% |
| Osaic Holdings, Inc. | 10 | 0.00% | $31 | – | 0.00% |
| FMR LLC | 7 | 0.00% | $21 | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 24 | 1M | 9.5% | 12 / 4 | 2 / 2 | 1M | 0M |
| Q1 2026 | 14 | 0M | 0.8% | 12 / 1 | 1 / 0 | 0M | 0M |
| Q4 2025 | 2 | 0M | 0.0% | 2 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
2 funds held CODX in Q2 2026, 100% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of CODX | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Extended Market Index Fund | 58,275 | 0.93% | $180.65K | 0.00% | Jun 30, 2026 |
| Fidelity Nasdaq Composite Index Fund | 39 | 0.00% | $333 | 0.00% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Dwight H. Egan | Chief Executive Officer, Director | 29,526 | 0.47% | May 27, 2026 |
| Daniel Bohrer | EVP of Finance & Accounting | 3,657 | 0.06% | Sep 14, 2026 |
| Richard David Abbott | President | 594,233 | 9.50% | May 27, 2026 |
| Brian Lee Brown | Chief Financial Officer | 23,729 | 0.38% | May 27, 2026 |
| James B. Nelson | Director | 10,668 | 0.17% | May 27, 2026 |
| Eugene Durenard | Director | 10,668 | 0.17% | May 27, 2026 |
| Richard S. Serbin | Director | 10,751 | 0.17% | May 27, 2026 |
| Edward L. Murphy | Director | 11,084 | 0.18% | May 27, 2026 |
| Ted Murphy | Director | 224,167 | 3.59% | Aug 15, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Eugene Durenard Director | May 23, 2026 | Award | +1,695 | – | – | 10,668 |
| Edward L. Murphy Director | May 23, 2026 | Award | +1,695 | – | – | 11,084 |
| Brian Lee Brown Chief Financial Officer | May 23, 2026 | Award | +3,750 | – | – | 23,729 |
| Brian Lee Brown Chief Financial Officer | May 23, 2026 | Returned to company | −1,350 | $5.07 | $6.84K | 22,379 |
| Richard S. Serbin Director | May 23, 2026 | Award | +1,695 | – | – | 10,751 |
| James B. Nelson Director | May 23, 2026 | Award | +1,695 | – | – | 10,668 |
| Richard David Abbott President | May 23, 2026 | Returned to company | −680 | $5.07 | $3.45K | 3,417 |
| Richard David Abbott President | May 23, 2026 | Award | +1,890 | – | – | 4,097 |
| Dwight H. Egan Chief Executive Officer, Director | May 23, 2026 | Award | +4,584 | – | – | 29,526 |
| Dwight H. Egan Chief Executive Officer, Director | May 23, 2026 | Returned to company | −1,633 | $5.07 | $8.28K | 27,893 |
| Brian Lee Brown Chief Financial Officer | Nov 23, 2025 | Returned to company | −40,723 | $0.35 | $14.25K | 599,355 |
| Brian Lee Brown Chief Financial Officer | Nov 23, 2025 | Award | +134,167 | – | – | 640,078 |
| Edward L. Murphy Director | Nov 23, 2025 | Award | +57,499 | – | – | 281,666 |
| Richard David Abbott President | Nov 23, 2025 | Returned to company | −17,200 | $0.35 | $6.02K | 66,202 |
| Richard David Abbott President | Nov 23, 2025 | Award | +56,667 | – | – | 83,402 |
| James B. Nelson Director | Nov 23, 2025 | Award | +57,499 | – | – | 269,166 |
| Dwight H. Egan Chief Executive Officer, Director | Nov 23, 2025 | Returned to company | −49,575 | $0.35 | $17.35K | 748,252 |
| Dwight H. Egan Chief Executive Officer, Director | Nov 23, 2025 | Award | +163,333 | – | – | 797,827 |
| Richard S. Serbin Director | Nov 23, 2025 | Award | +57,499 | – | – | 271,666 |
| Eugene Durenard Director | Nov 23, 2025 | Award | +57,499 | – | – | 269,166 |
| Richard S. Serbin Director | May 23, 2025 | Award | +48,334 | – | – | 214,167 |
| Richard David Abbott President | May 23, 2025 | Award | +20,000 | – | – | 33,915 |
| Richard David Abbott President | May 23, 2025 | Returned to company | −7,180 | $0.24 | $1.72K | 26,735 |
| Eugene Durenard Director | May 23, 2025 | Award | +48,334 | – | – | 211,667 |
| Ted Murphy Director | May 23, 2025 | Award | +48,334 | – | – | 224,167 |
| James B. Nelson Director | May 23, 2025 | Award | +48,334 | – | – | 211,667 |
| Dwight H. Egan Chief Executive Officer, Director | May 23, 2025 | Returned to company | −51,697 | $0.24 | $12.41K | 634,494 |
| Dwight H. Egan Chief Executive Officer, Director | May 23, 2025 | Award | +163,334 | – | – | 686,191 |
| Brian Lee Brown Chief Financial Officer | May 23, 2025 | Returned to company | −48,161 | $0.24 | $11.56K | 505,911 |
| Brian Lee Brown Chief Financial Officer | May 23, 2025 | Award | +134,166 | – | – | 554,072 |
| James B. Nelson Director | Nov 23, 2024 | Award | +48,333 | – | – | 163,333 |
| Brian Lee Brown Chief Financial Officer | Nov 23, 2024 | Returned to company | −40,816 | $1.01 | $41.22K | 419,905 |
| Brian Lee Brown Chief Financial Officer | Nov 23, 2024 | Award | +134,167 | – | – | 460,721 |
| Ted Murphy Director | Nov 23, 2024 | Award | +48,333 | – | – | 175,833 |
| Dwight H. Egan Chief Executive Officer, Director | Nov 23, 2024 | Returned to company | −49,689 | $1.01 | $50.19K | 522,858 |
| Dwight H. Egan Chief Executive Officer, Director | Nov 23, 2024 | Award | +163,333 | – | – | 572,547 |
| Eugene Durenard Director | Nov 23, 2024 | Award | +48,333 | – | – | 163,333 |
| Richard S. Serbin Director | Nov 23, 2024 | Award | +48,333 | – | – | 165,833 |
| Richard David Abbott President | Nov 23, 2024 | Award | +20,000 | – | – | 20,000 |
| Richard David Abbott President | Nov 23, 2024 | Returned to company | −6,085 | $1.01 | $6.15K | 13,915 |
| Dwight H. Egan Chief Executive Officer, Director | May 23, 2024 | Returned to company | −42,008 | $1.09 | $45.79K | 367,206 |
| Dwight H. Egan Chief Executive Officer, Director | May 23, 2024 | Award | +138,333 | – | – | 409,214 |
| Ted Murphy Director | May 23, 2024 | Award | +30,000 | – | – | 127,500 |
| Brian Lee Brown Chief Financial Officer | May 23, 2024 | Returned to company | −35,865 | $1.09 | $39.09K | 290,689 |
| Brian Lee Brown Chief Financial Officer | May 23, 2024 | Award | +113,334 | – | – | 326,554 |
| Eugene Durenard Director | May 23, 2024 | Award | +30,000 | – | – | 115,000 |
| Richard S. Serbin Director | May 23, 2024 | Award | +30,000 | – | – | 117,500 |
| James B. Nelson Director | May 23, 2024 | Award | +30,000 | – | – | 115,000 |
| Ted Murphy Director | Nov 23, 2023 | Award | +30,000 | – | – | 97,500 |
| Dwight H. Egan Chief Executive Officer, Director | Nov 23, 2023 | Returned to company | −46,047 | $1.26 | $58.02K | 270,881 |
| Dwight H. Egan Chief Executive Officer, Director | Nov 23, 2023 | Award | +150,834 | – | – | 316,928 |
| James B. Nelson Director | Nov 23, 2023 | Award | +30,000 | – | – | 85,000 |
| Brian Lee Brown Chief Financial Officer | Nov 23, 2023 | Award | +118,332 | – | – | 249,345 |
| Brian Lee Brown Chief Financial Officer | Nov 23, 2023 | Returned to company | −36,125 | $1.26 | $45.52K | 213,220 |
| Eugene Durenard Director | Nov 23, 2023 | Award | +30,000 | – | – | 85,000 |
| Richard S. Serbin Director | Nov 23, 2023 | Award | +30,000 | – | – | 87,500 |
| Ted Murphy Director | May 23, 2023 | Award | +18,333 | – | – | 67,500 |
| James B. Nelson Director | May 23, 2023 | Award | +18,333 | – | – | 55,000 |
| Richard S. Serbin Director | May 23, 2023 | Award | +18,333 | – | – | 57,500 |
| Eugene Durenard Director | May 23, 2023 | Award | +18,333 | – | – | 55,000 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
18.40%
1M shares short
Days to cover
2.2
At 0M shares a day
Change since last report
+49.5%
From 1M shares
Short volume, 20 days
54.0%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Co-Diagnostics's stock actually held short. Settlement fails (shares not delivered on time) peaked at 44,485 shares on Sep 18, 2026 over the last 90 days.
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