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Note M - Equity | 12 Months Ended
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Dec. 31, 2025
Notes to Financial Statements |
Equity [Text Block] | NOTE M— EQUITY 1. Preferred Stock Within the limits and restrictions provided in the Company’s Certificate of Incorporation, the Board of Directors has the authority, without further action by the shareholders, to issue up to 5,000,000 shares of preferred stock, $.0001 par value per share, in one or more series, and to fix, as to any such series, any dividend rate, redemption price, preference on liquidation or dissolution, sinking fund terms, conversion rights, voting rights, and any other preference or special rights and qualifications. 2. Common Stock Holders of common stock have equal rights to receive dividends when, as and if declared by the Board of Directors, out of funds legally available therefor. Holders of common stock have one vote for each share held of record and do not have cumulative voting rights. Holders of common stock are entitled, upon liquidation of the Company, to share ratably in the net assets available for distribution, subject to the rights, if any, of holders of any preferred stock then outstanding. Shares of common stock are not redeemable and have no preemptive or similar rights. All outstanding shares of common stock are fully paid and nonassessable. Employee Stock Purchase Plan On June 18, 2021, the stockholders approved the 2021 Employee Stock Purchase Plan ("ESPP"). Under the terms of this plan, 4,384 shares of common stock were reserved for issuance to employees and officers of the Company at 85% of the lower of the closing price of the common stock as reported on the Nasdaq Capital Market at the first day or the last day of the offering period. Eligible employees are granted an option to purchase shares under the plan funded by payroll deductions. The Board may suspend or terminate the plan at any time, otherwise the plan expires June 17, 2031. On August 8, 2025, at the Company’s Annual Stockholders Meeting (“Annual Meeting”), a proposal was approved to amend the plan to reserve an additional 70,000 shares of common stock. During 2025 and 2024, 2,126, and 264 shares, respectively, were issued under the ESPP to employees, (as adjusted to reflect our 1-for-10 reverse stock split, which was effective April 30, 2026) which resulted in a $2,250 and $775 non-cash compensation expense, respectively. Issuances of Restricted Stock Restricted stock consists of shares of common stock that are subject to restrictions on transfer and risk of forfeiture until the fulfillment of specified conditions. The fair value of nonvested shares is determined based on the market price of the Company's common stock on the grant date. Restricted stock is expensed ratably over the term of the restriction period. The Company issued 28,300 shares of restricted common stock to certain employees of the Company and 3,025 of shares of restricted common stock were forfeited during the year ended December 31, 2025. The Company issued 17,896 shares of restricted common stock to certain employees of the Company and 917 of shares of restricted common stock were forfeited during the year ended December 31, 2024 (as adjusted to reflect our 1-for-10 reverse stock split, which was effective April 30, 2026). These shares vest in equal annual installments over a three-year period from the date of grant. Restricted stock compensation for the years ended December 31, 2025 and 2024 was $144,321 and $224,470, respectively. Issuances to Directors, Executive Officers & Consultants During the 2025 and 2024 years, the Company issued 2,314 and 1,205 shares of common stock respectively to its directors in lieu of payment of board fees, valued at $20,004 and $18,006 respectively (as adjusted to reflect our 1-for- 10 reverse stock split, which was effective April 30, 2026). Warrants Warrants Issued with a Warrant Exercise Agreement: On October 27, 2025, the Company entered into and closed a warrant exercise agreement (the “Warrant Exercise Agreement”) with an existing institutional investor (the “Investor”) to exercise certain outstanding warrants to purchase an aggregate of 309,167 shares of the Company’s common stock (as adjusted to reflect our 1-for-10 reverse stock split, which was effective April 30, 2026), which were originally issued to the Investor on January 15, 2025 (the “Existing Warrants”). Pursuant to the Warrant Exercise Agreement, the exercise price of the Existing Warrants was reduced from $21.50 per share to $10.20 per share. In consideration for the exercise of the Existing Warrants, subject to compliance with the beneficial ownership limitations included in the Existing Warrants, the Investor received new unregistered warrants to purchase up to an aggregate of 618,334 shares of the Company’s Common Stock (the “New Warrants”). The New Warrants have substantially the same terms, are immediately exercisable at an exercise price of $10.20 per share and will expire five years from the date of issuance. The Company agreed to file a resale registration statement covering the public resale of the shares of Common Stock issuable upon exercise of the New Warrants with the SEC, and to use commercially reasonable efforts to have such Resale Registration Statement declared effective by the SEC within 90 calendar days following the date of the Warrant Exercise Agreement. The New Warrants include a beneficial ownership limitation that prevents the Investor from beneficially owning more than 4.99% of the Company’s outstanding common stock at any time. The gross proceeds to the Company under the Warrant Exercise Agreement were approximately $3.1 million, prior to deducting placement agent fees and estimated offering expenses. The Company intends to use the net proceeds for working capital and general corporate purposes, including repayment of a portion of the Company’s outstanding secured note. Maxim Group LLC acted as the exclusive placement agent to the Company and the Company agreed to pay Maxim an aggregate cash fee equal to 6.0% of the gross proceeds received by the Company under the Warrant Exercise Agreement. On January 15, 2025, the Company entered into a warrant exercise agreement (the "January Warrant Exercise Agreement") with the Investor to exercise certain outstanding warrants to purchase an aggregate of 206,111 shares of the Company’s common stock (as adjusted to reflect our 1-for-10 reverse stock split, which was effective April 30, 2026) at an exercise price of $18.50 per share which were originally issued to the Investor on September 13, 2024 (the "Existing 2024 Warrants"). In consideration for the exercise of the Existing 2024 Warrants, subject to compliance with the beneficial ownership limitations included in the existing warrants, the Investor received new unregistered warrants which were amended and exercised in full pursuant to the Warrant Exercise Agreement which is more fully described in the preceding paragraph. The Company realized gross proceeds under the January Warrant Exercise Agreement of approximately $3.8 million, prior to deducting placement agent fees and estimated offering expenses. Net proceeds are being used for working capital and general corporate purposes, including repayment of a portion of the 2024 Note. On September 12, 2024, the Company entered into a Warrant Exercise Agreement ("Inducement Agreement") with an existing institutional investor for the immediate exercise of certain outstanding warrants that the Company issued on October 30, 2023. Pursuant to the Inducement Agreement, the investor agreed to exercise outstanding warrants to purchase an aggregate of 103,056 shares of the Company's common stock (as adjusted to reflect our 1-for-10 reverse stock split, which was effective April 30, 2026) at an amended exercise price of $18.50. The gross proceeds from the exercise of the warrants were approximately $1.9 million, prior to deducting placement agent fees and estimated offering expenses. In consideration for the immediate exercise of the warrants, the Company issued new unregistered warrants which were amended and exercised in full pursuant to the January Warrant Exercise Agreement which is more fully described in the preceding paragraph. Valuation Assumptions for Warrants: The Company records the warrants at their fair value which is determined using the Black-Scholes valuation model on the date of the grant. The fair value of the warrants issued in 2025 and 2024 were estimated with the following assumptions:
|  | Years ended |
|  | December 31, |
|  | 2025 |  |  | 2024 |
Weighted average risk-free interest rate |  |  | 3.84 | % |  |  | 3.34 | %
Weighted average exercise price |  | $ | 10.20 |  |  | $ | 18.50 |
Weighted average exercise period |  |  | 5 |  |  |  | 5 |
Weighted average Volatility of stock price |  |  | 451 | % |  |  | 577 | %
The volatility for each issuance is determined based on the review of the experience of the weighted average of historical daily price changes of the Company’s common stock over the expected exercise period. The five-year volatility is higher than the one-year rate from Bloomberg, based on several reverse-splits of BIO-key's stock over the five-year period. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the years to maturity. A summary of warrant activity (as adjusted to reflect our 1-for-10 reverse stock split, which was effective April 30, 2026) is as follows:
|  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Weighted |  |  | average |  |  |  |  |
|  |  |  |  |  | average |  |  | remaining |  |  | Aggregate |
|  | Total |  |  | exercise |  |  | life |  |  | intrinsic |
|  | Warrants |  |  | price |  |  | (in years) |  |  | value |
Outstanding, as of December 31, 2023 |  |  | 262,649 |  |  |  | 1,049.50 |  |  |  | 4.37 |  |  |  | — |
Granted |  |  | 206,111 |  |  |  | 18.50 |  |  |  |  |  |  |  |  |
Exercised |  |  | (190,322 | ) |  |  | 10.20 |  |  |  |  |  |  |  |  |
Forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Expired |  |  | (1,389 | ) |  |  | — |  |  |  |  |  |  |  |  |
Outstanding, as of December 31, 2024 |  |  | 277,049 |  |  | $ | 109.90 |  |  |  | 4.19 |  |  |  | — |
Granted |  |  | 927,500 |  |  |  | 10.20 |  |  |  |  |  |  |  |  |
Exercised |  |  | (515,278 | ) |  |  | 10.20 |  |  |  |  |  |  |  |  |
Forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Expired |  |  | (24,521 | ) |  |  | 1,007.70 |  |  |  |  |  |  |  |  |
Outstanding, as of December 31, 2025 |  |  | 664,750 |  |  | $ | 12.40 |  |  |  | 4.70 |  |  |  | — |
The aggregate intrinsic value in the table above represents the total intrinsic value, based on the Company’s closing stock price of $5.40, $17.10, and $30.00 as of December 31, 2025, 2024 and 2023, respectively, which would have been received by the warrant holders had all warrant holders exercised their options as of that date. There were no in-the-money warrants exercisable as of December 31, 2025, 2024 and 2023.

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